CN103573319A - Camshaft phase adjuster with sealing sleeve - Google Patents

Camshaft phase adjuster with sealing sleeve Download PDF

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Publication number
CN103573319A
CN103573319A CN201310314234.9A CN201310314234A CN103573319A CN 103573319 A CN103573319 A CN 103573319A CN 201310314234 A CN201310314234 A CN 201310314234A CN 103573319 A CN103573319 A CN 103573319A
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CN
China
Prior art keywords
contact pin
rotor
interface
sealing contact
stuffing box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310314234.9A
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Chinese (zh)
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CN103573319B (en
Inventor
克劳斯·韦尔特
尤韦·迈尼希
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schwaebische Huettenwerke Automotive GmbH
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Schwaebische Huettenwerke Automotive GmbH
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Publication of CN103573319A publication Critical patent/CN103573319A/en
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Publication of CN103573319B publication Critical patent/CN103573319B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/34433—Location oil control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34479—Sealing of phaser devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34483—Phaser return springs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

Provided is a phase adjuster used to adjust a corner position of a camshaft of an internal combustion engine relative to a crankshaft. The phase adjuster comprises a stator, a rotor forming a first control cavity and a second control cavity together with the stator, a fixing structure which axially extends across the rotor for torsion resistance connection of the rotor and the camshaft and forms an annular gap with the rotor, a first sealing connecting piece, a second sealing connecting piece, a third sealing connecting piece which extend around a rotating axis and are elastic and soft, a first fluid interface which axially communicates with the annular gap, and through which pressure fluid can be supplied to a first control cavity, the first fluid interface being between the first sealing connecting piece and the second sealing connecting piece, a second fluid interface which axially communicates with the annular gap, and through which pressure fluid can be supplied to a second control cavity, the second being between the second sealing connecting piece and the third sealing connecting piece, and sealing sleeves which forms the connecting pieces and connecting contact pins among the connecting piece, and forms one of the fluid interfaces in at least an area of the connecting pieces.

Description

Camshaft phase regulator with stuffing box gland
Technical field
The present invention relates to for regulating the camshaft of internal-combustion engine with respect to the sealing of the fluid type phase regulator of the angle position of bent axle.
Background technique
In order to improve power and torque, and in order to reduce fuel consumption and the waste gas discharge of poisonous waste for the internal-combustion engine of road vehicle, for changing the camshaft phase regulator of entrance control time and control of export time, be widely applied.Reliability based on high and in view of favourable cost-effectiveness, proves feasible according to the principle of hydraulic rotating motor and by the hydraulic type phase regulator of handling for the lubricant oil of internal-combustion engine.Phase regulator has stator and rotor, and it can reverse relative to each other by the pressure-loaded of control chamber.Rotor conventionally extends through the fixed structure (for example set screw) of rotor and is connected with the antitorque formula of camshaft by means of heart therefrom.Control chamber can be loaded with pressure fluid via the annular gap staying between center type fixed structure and rotor.In view of cost, the requirement of the accuracy of manufacturing of each member of phase regulator can not be over-evaluated.On the other hand, exist the requirement that the leakage between member is reduced to minimum degree.The transmission device (the normally lubricating pump of motor) that leakage need to be supplied with pressure fluid phase regulator has larger size.Be associated therewith, supply with the increase of installing space, weight and power consumpiton and the raising of cost of transmission device.
In-problem about leakage is crossover position, in this position pressure fluid flows into annular gap, to realize the pressure-loaded of control chamber, and therefrom flows out to realize discharge degree.Yet, for can by means of center type fixed structure distolateral antitorque formula connect rotor and the camshaft of phase regulator, in the periphery of fixed structure and between the interior week of rotor around, must there is the gap limiting, so that avoid the friction torque not limiting between member in the situation of assembling.According to the determined gap of the manufacturing tolerances by fixed structure and rotor, depend on the viscosity of pressure fluid and especially temperature and draw more or less compared with gross leak.A special problem is present in using the situation of the rotor consisting of aluminium, and this rotor is for example made with continuous casting process or by sintering, and is used to reduce moment of inertia and the weight of phase regulator.If this fixed structure is formed from steel, gap width between rotor and center type fixed structure can compare that steel has compared with large thermal expansion and along with the temperature increasing increases due to aluminium, thereby the viscosity that makes pressure fluid reduces and equally also can be accompanied by the increase of gap width, this is the pressure drop in the control chamber that the hot idling of internal-combustion engine contributes in the stage to load especially.
A kind of feasible scheme of getting rid of leakage problem is to arrange O shape circle.For example DE102008030057A1 has described a kind of sealing of the O of utilization shape circle.O shape circle requires to be arranged in correspondingly configured groove and therefore in axial installing space, it is only restrictedly available.Therefore, no longer may realize the favourable size of O shape circle.In addition, the automation assembling of O shape circle is expensive.Equally also exist following dangerous,, the O shape circle being formed by elastomeric material between fixed structure and rotor in the situation in relative rotation occurring between erecting stage because high friction factor is dug, this may cause in the rotor of camshaft, phase regulator and the connection of fixed structure do not limit until cause O shape to enclose destroyed friction torque.DE102008030057A1 discloses the sealing by means of seal bowl equally, and sealing bowl has sealed in left side and right side the interface being passed in annular gap.Seal bowl and one or more O shape are enclosed the use that combines, for the other interface in sealing ring gap.Therefore, for the required cost of assembling with for the mentioned problem of the solution of pure O shape circle, do not improve.
Summary of the invention
Under this background, the object of the invention is, under a kind of situation that is being configured with annular gap, center type fixed structure extend into wherein to realize in the situation with the antitorque camshaft phase regulator being connected of camshaft, be passed into the interface for pressure fluid in annular gap can save space-efficient and simple but reliably mode seal relative to each other (to each other fluid type separately), and make equally the automation assembling of phase regulator become easy.
The present invention is based on a kind of for regulating the camshaft of internal-combustion engine with respect to the phase regulator of the angle position of bent axle, it comprises by the stator of the rotatable driving of bent axle, the rotor that rotated the rotatable driving of rotation axis and can be connected or be connected with this camshaft for the rotary actuation of camshaft by stator, and is connected and extends axially the fixed structure that in rotor and suitably extends through rotor for the antitorque formula of rotor and camshaft.Between fixed structure and rotor, also leave annular gap between fixed structure and camshaft alternatively.Rotor and stator form at least one first control chamber and at least one second control chamber, they can correspondingly be loaded with pressure fluid, thereby rotor is conditioned with respect to the stator rotation axis that can rotate by the corresponding pressure-loaded of the first or second control chamber, and makes thus rotor can be conditioned with respect to the angle position of stator.Phase regulator is rotary sheet type preferably.In rotary sheet type phase regulator, pressure fluid acts on rotor in the first control chamber in a circumferential direction, and in the second control chamber, in another circumferential direction, is applied to (correspondingly about its rotation axis) on rotor.Preferably, stator and rotor rotate rotation axis distribution and have formed as follows a plurality of the first control chambers and a plurality of the second control chamber,, the blade of rotor radially stretches between stator hoof piece, thus in the axial view towards rotor correspondingly the side at blade form the first control chamber and form the second control chamber at opposite side.
In addition, phase regulator comprises the seal arrangement with at least three sealing contact pin, and these three sealing contact pin are also known as the first sealing contact pin, the second sealing contact pin and the 3rd sealing contact pin hereinafter.These sealing contact pin rotation axis that correspondingly rotates is extended, and is that elasticity is soft.All sealing contact pin can be extended in annular gap.Yet, optional another sealing contact pin in sealing in contact pin or seal arrangement can be arranged in outside annular gap equally, so that in a sealing ring gap, axial end portion place, especially sealingly abut in the end of rotor or fixed structure at this axial end portion place of annular gap.The the optional the 4th or the 5th sealing contact pin in another in these at least three sealing contact pin or as an alternative seal arrangement can be arranged in outside annular gap equally, so that locate same sealing ring gap in the other end, especially sealingly abut in the end at another axial end portion place that is in annular gap of rotor or fixed structure.Herein, term "or" is understood with other local the same meaning with " double or " of the present invention, not only comprise " ... or ... " implication, and comprise " with " implication, usually by corresponding concrete linguistic context, can not only draw only a kind of in these two kinds of implications.About reclining of the end at rotor or fixed structure, this for example means as follows, in the first variant scheme, relevant sealing contact pin is only in the end of rotor and sealingly do not recline in the end of fixed structure, in the second variant scheme, relevant sealing contact pin is only in the end of fixed structure and sealingly do not recline in the end of rotor, and in the third variant scheme, relevant sealing contact pin not only sealingly reclines in inner radial at radially outer but also in the end of fixed structure in the end of rotor.
Between the first sealing contact pin and the second sealing contact pin, first fluid interface is passed in annular gap in the axial direction.By this first fluid interface, pressure fluid can be supplied at least one or preferred a plurality of the first control chambers.Between the second sealing contact pin and the 3rd sealing contact pin, second fluid interface is passed in annular gap in the axial direction.By this second fluid interface, pressure fluid can be from least one or preferably a plurality of the second control chambers, is discharged.Suitably, pressure fluid can be discharged by first fluid interface equally from one or more the first control chambers, and first fluid interface is associated with the first control chamber in this meaning.Such first fluid interface being associated is also known as A interface hereinafter conventionally.Yet as an alternative, this first fluid interface can be in the inflow of pressure fluid, to be placed on the end, upstream of control valve or to be placed on the pressure interface (so-called P interface) for the upstream of the control valve of phase regulator equally, pressure fluid can be supplied to control valve via it, and via this control valve, control, or adjustable ground is supplied to the control chamber of two types.Suitably, pressure fluid can be supplied to one or more the second control chambers by second fluid interface equally, and second fluid interface is associated with the second control chamber in this meaning.A kind of like this second fluid interface being associated is also known as B interface hereinafter conventionally.Yet as an alternative, this second fluid interface can be storage tank interface equally, it is placed on the downstream end place of control valve or in the downstream of the control valve for phase regulator on the path of the pressure fluid being flowed out by phase regulator.This storage tank interface only can be associated with one or more the second control chambers, so pressure fluid is only discharged from these chambeies, or also can serve as the storage tank interface for described one or more the first control chambers.
According to the present invention, stuffing box gland single-piece ground forms sealing contact pin, and formation is axially placed between sealing contact pin and will seals contact pin connection contact pin connected to one another in addition.Stuffing box gland is fixed on rotor place or fixed structure place, and this comprises following installation situation equally, and stuffing box gland is only fixed by the link of rotor and fixed structure therein.Stuffing box gland integral type in moulding or deformation technique forms.It especially can be by elastomeric material and preferably with Shooting Technique, is shaped.As elastomeric material, the present invention is interpreted as elastomer plastic and the material based on natural rubber.It can comprise the part of one or more moulding, for example one or more filter elements for cleaning pressure fluid, one or more reinforcer or one or more link, and this link can form one or more connection contact pin.At least one in connection contact pin for example enhanced leaktightness overlapped or is modified into filter element, is about to linkage function and adds powerful or filtering function combination with one another.Except plastics, stuffing box gland can be made by metallic material equally at least haply, and in this type of embodiment preferably by modified example as made as follows, in this embodiment, the sealing contact pin elasticity hover ground of metal is curled.In addition, the supporting structure consisting of metal or plastics can utilize elastomeric material to carry out overmolding (Umspritzen), so that form stuffing box gland.This supporting structure can have the contact pin that radial elastic is soft in the region of sealing contact pin, and it is coated elastomeric material in the situation of overmolding.Yet the elasticity of sealing contact pin equally only can be given by elastomeric material.If seal arrangement has one or more other sealing contact pin, stuffing box gland is preferably same forms these other sealing contact pin with at least three sealing contact pin single-piece ground.Stuffing box gland can directly produce by moulding (especially injection moulding) equally on the interior week of fixed cover or rotor.
In the region of at least one in connecting contact pin, formed in fluid interface.This means the connection contact pin that pressure fluid can be flowed through relevant.Preferably, in the region of each at least two connection contact pin, one of them is connected the first sealing contact pin with the second sealing contact pin, and another is connected the second sealing contact pin with the 3rd sealing contact pin, and this has correspondingly formed in mentioned fluid interface.
Sealing contact pin is significantly simplified as the realization (with stuffing box gland form) of a unit and has accelerated assembling.Each phase regulator needn't assemble a plurality of seal elements, for example single seal ring individually.For by two fluid interfaces of phase regulator relative to one another and extraly on left side and right side from outside seal, at least three sealing contact pin that can be used as the stuffing box gland assembling unit are just enough.The danger of mistake assembling is lowered.By the assembling of the stuffing box gland as unit, the axial position of at least three sealing contact pin can side by side enough accurately be determined.The accurate assembling in the position of stuffing box gland has guaranteed that with a step position of sealing contact pin assembles accurately, and stuffing box gland only must integrally enough accurately be made in the situation of its shaping.The shaping of stuffing box gland makes directly to have produced at least three sealing contact pin and will seal contact pin connection contact pin connected to one another in shaping, and the manufacture of sealing device is than being simplified equally with three independent seal rings or one or more seal ring with the seal arrangement of the combination of the seal bowl of two contact pin.Quality control is simplified equally, this be because quality, especially the size accuracy of stuffing box gland integrally and therefore at least three sealing contact pin side by side only must in a unique step, carry out.
Phase regulator required for protection comprises the control valve for the control of pressure fluid, and it has formed fixed structure in preferred embodiments.Especially, the valve chest of control valve can form fixed structure.In this type of embodiment, control valve comprise a kind of like this valve chest and can be in valve chest axially movable valve piston.Valve chest have for pressure fluid to the pressure interface of the supply of valve chest, the first control interface being connected with first or a plurality of the first control chamber, with two or more second second control interfaces that regulate chambeies to be connected, and at least one storage tank interface of discharging from valve chest for pressure fluid.In these interfaces of valve chest, especially pressure interface or the first control interface can form the first fluid interface being passed in annular gap, and described another interface of valve chest (i.e. the second control interface or at least one storage tank interface) can form the second fluid interface being passed in annular gap.Control valve is embodied as switch valve or Proportional valve.The function of control valve can be pure control procedure or the adjustment process without feedback.The concept of controlling is understood to the general meaning, and should comprise equally the implication of adjusting.Correspondingly, control valve can be comprised in regulating loop, and the motion of valve piston can be dependent on one or more different regulated quantitys based on measuring and regulates.As regulated quantity, for example can use the rotating speed of bent axle or camshaft.
In alternate embodiment, in the middle of not being arranged in for the control valve of phase regulator, do not extend in rotor or through rotor, but about the Plant arrangement that formed by stator and rotor externally.In this type of embodiment, center type fixed structure only can be used for rotor in the fixing object in camshaft place, or meets alternatively other additional function, for example, for pressure fluid, be to and from the guiding of control chamber.In this type of embodiment, the fluid interface being passed in annular gap is for example the hole in annular gap that is passed into of rotor fluid passage, and it connects control chamber and the annular gap of phase regulator.
At the annular gap forming between fixed structure and rotor, can axially by the annular gap forming between fixed structure and camshaft, extend.This is not only applicable to the embodiment that fixed structure consists of center type control valve therein, and is applicable to control valve relative stator-rotor arrangement and is arranged in outside embodiment.First fluid interface or second fluid interface can be arranged in the region of this annular gap between fixed structure and camshaft equally.
Stuffing box gland can with fixed structure or rotor form fit formula ground or be only connected to frictional fit formula only, preferably form fit formula and frictional fit formula ground are connected, so that stuffing box gland is fixed in its position with respect to fixed structure and rotor.Stuffing box gland equally can with fixed structure and rotor material formula be connected (being connected if desired) pure material formula.Therefore, stuffing box gland for example can bond with fixed structure or rotor.The connection that material coordinates is advantageously combined with form fit or frictional fit.
In preferred embodiments, stuffing box gland has joint element, and fixed structure or rotor have joint complementary elements.Joint element with engage in the joint of complementary elements in form fit formula or frictional fit formula, preferably not only in form fit but also the joint in frictional fit formula, its by stuffing box gland axially or in circumferential direction, preferably axially and be fixed on fixed structure or rotor place in circumferential direction.One in joint element and joint complementary elements is groove, and another is the projection extending in this groove.Preferably, they are grooves and corresponding projection radially radially at this.Form fit formula and joint frictional fit formula can especially form joint element and be connected with the locking that engages complementary elements.Stuffing box gland can have a plurality of joint elements, and fixed structure or rotor can correspondingly have a plurality of joint complementary elements, thus make joint element correspondingly with engage in complementary elements one in joint form fit formula or frictional fit formula.Advantageously, around rotation axis, distribute and to have a plurality of joint elements and consistent a plurality of joint complementary elements therewith.
The joint of form fit formula or frictional fit formula can be agile mode utilizing first fluid interface or second fluid interface or another is passed under the situation of the fluid interface in annular gap and sets up in the following way alternatively, relevant fluid interface forms the joint complementary elements of fixed structure or rotor, and can the flow through joint element of stuffing box gland of pressure fluid.Because the fluid interface for engaging is passed into annular gap, so it comprises at least one hole in annular gap, its in this type of embodiment simultaneously also as follows for the engaging of joint element, joint element preferably extend in relevant hole.If formed by a plurality of holes that rotate rotation axis distributed arrangement as preferably for the fluid interface engaging, each in these holes can form one and engages complementary elements so, and correspondingly with the joint element of stuffing box gland in form fit formula with the engaging of frictional fit formula in.In principle, foundation is only just enough with engaging of a hole.Yet, preferably set up with a plurality of holes (for example accordingly fluid interface porose) engage.Such a solution especially tool has the following advantages, and at fixed structure or rotor place, does not need to form extra structure and just can form one or more joint complementary elements.As previously described, therein stuffing box gland comprise at least two joint elements and fixed structure or rotor correspondingly comprise two in circumferential direction each other the same tool of joint of joint complementary elements of skew have the following advantages, stuffing box gland in annular gap not only in the axial direction but also fixing in circumferential direction.One or more joint elements are corresponding preferably as adapter or ring and be shaped.Corresponding take over or ring preferably extend in corresponding joint complementary elements, preferably as described in each pass into hole.
The joint of form fit formula or frictional fit formula can be set up equally as follows, at least one sealing in contact pin for example extend into, in the groove around rotation axis (peripheral groove) of fixed structure or rotor, or surrounded around rotation axis and extended and the radially outstanding preferred rib around rotation axis.In order to obtain the joint of form fit formula and frictional fit formula, fixed structure can be extraly or as an alternative at outer peripheral surface place or rotor processes groove at the inner peripheral surface place in the face of fixed structure, by annular knurl or be otherwise roughened, especially be burr shape and be roughened, and stuffing box gland abuts in the circumferential surface place of roughening.In another embodiment, stuffing box gland utilization extruding is radially fixed on the excircle of fixed structure or on the inner circumference of rotor, wherein, this circumference can be smooth in principle, make engaging only as follows based on frictional fit of stuffing box gland and fixed structure or rotor, that is the elastic stress that, stuffing box gland utilization can be produced by the elastic properties of materials of stuffing box gland or shape elasticity and abut in relevant circumferential surface place.Stuffing box gland can for example, combine with any one (joint element and engage the joint that comprises form fit of complementary elements or the circumferential surface of roughening) in other measure equally for the lateral extrusion of the excircle of fixed structure or the inner circumference of rotor.Two or more of described other measure of the joint similarly, coordinating for form fit, frictional fit or material can combine and realize.
Stuffing box gland can be made individually and link with fixed structure or rotor, or also can be by utilizing the excircle of fixed structure of elastomeric material or the overmolding of the inner circumference of rotor to obtain.At this, be for example enough as follows, seal in contact pin only one by overmolding, be shaped, and other sealing contact pin and connect contact pin and be fixedly connected with the sealing contact pin of manufacturing by overmolding in this injection moulding process.Yet more preferably, stuffing box gland a plurality of, be particularly preferably that all sealing contact pin is directly made by overmolding.Preferably, connect contact pin and in injection moulding process, make equally, thereby stuffing box gland is shaped on the whole in overmolding.Yet, connect contact pin or can be used as equally inserting member as the supporting structure that cell formation connects contact pin and be positioned in injection mould, and the plastics that seal contact pin by formation in overmolding carry out overmolding, and be fixedly embedded thus.
In other a kind of mode of execution, fixed structure has the convex shoulder around rotation axis in the part of stretching out from annular gap, and it can clamp for the antitorque connection of rotor and camshaft on the axial direction towards rotor.Optional another sealing contact pin of at least three sealings in contact pin or stuffing box gland radially extend into around rotation axis and be formed on rotor and the convex shoulder of fixed structure between gap in.In the state being connected with camshaft at rotor, therefore fixed structure axially exerts pressure to rotor via sealing contact pin with this convex shoulder, and therefore sealing contact pin sealed annular gap.This type of design proposal can with the mentioned form of stuffing box gland fixing in any other form (especially axial is fixing) realizations that combine, or only realization individually.
In these at least three sealing contact pin, one or two or all three sealing contact pin at least in the state of unloading (before sealing therein the assembling that contact pin is in rotor and fixed structure) in the direction of the outer peripheral surface towards fixed structure (radially inwardly towards rotation axis) or in the direction of the inner peripheral surface towards rotor (by rotation axis radially outward remotely) be for example taper and be tapered.With which, the elasticity distance radially that seals accordingly contact pin is compared the sealing contact pin of constant axial width and increases.When the difference between the thermal expansion due at rotor and the thermal expansion of fixed structure causes the gap width of annular gap to depend on temperature changing, for example, when fixed structure and rotor are made from a variety of materials (fixed structure is for example formed from steel and rotor is made by aluminium material), this type of design proposal can be especially favourable.
In improvement project, stuffing box gland comprises the filtrating equipment as integrated constituent element, for cleaning pressure fluid.This filtrating equipment can be especially forms at least one region in connecting contact pin.If filtrating equipment by or utilize one or more inserting members to form, the material that the elasticity of stuffing box gland is soft so can be configured for the supporting structure of such a or a plurality of inserting members.Therefore, sealing contact pin, the injection structure especially being formed with injection moulding by plastics and filtrating equipment can be by the overmolding of plastics with injection structure at least one, preferably two in injection structure are fixedly connected.Preferably Jin edge is by plastics surrounding type ground overmolding for the filtrating equipment consisting of inserting member, and correspondingly only at it, the side margin place on is axially embedded in plastic materials.This type of stuffing box gland that is made for composite members can for example comprise the sealing contact pin of the injection structure that at least three conducts consist of elastomer plastic, and is embedded into the filtrating equipment consisting of metal or plastics in these injection structures at least one axial edge place.A kind of like this filtrating equipment can axially form one that connects in contact pin between two adjacent sealing contact pin, or only in from sealing contact pin, protrudes at an axial end portion place.Filtrating equipment can consist of the supporting structure of stuffing box gland equally.Supporting structure is at least two connection contact pin of single-piece ground formation stuffing box gland especially.It can be the whole of stuffing box gland or almost on whole axial length, extends.Sealing contact pin produces with the overmolding of elastomeric material by such supporting structure as cell formation.In this region of sealing contact pin, supporting structure suitably has perforation, and elastomeric material can enter by this perforation in overmolding, so that flexible sealing contact pin is fixed on to supporting structure place.
Stuffing box gland can have at least one passage axially extended, be preferably unlatching at the circumferential surface place of stuffing box gland, groove for example, and it is for the guiding of pressure fluid.In this type of embodiment, in the passage that pressure fluid in stuffing box gland or preferably forms at stuffing box gland and fixed structure or with rotor, (alternatively additionally also in circumferential direction) is guided in the axial direction, is assigned with equally alternatively.In such passage that is formed by stuffing box gland or form by means of stuffing box gland, pressure fluid can be axially, alternatively extra also in circumferential direction for example with respect to forming the pressure interface of control valve of fixed structure or directed with respect to being arranged in pressure interface center, that extend into the control valve (it does not possess fixed function) in rotor.
Although the present invention is advantageous particularly for claimed herein phase regulator; for being sealed in the fluid interface of the annular gap between center type fixed structure and rotor and optional camshaft; what single-piece formed in principle is favourable with at least three sealing contact pin with the stuffing box gland that is connected the connection contact pin of these sealing contact pin equally for the lubricating pump of for example internal-combustion engine and motor car engine; yet favourable equally for general pump, as long as it can be controlled or be conditioned by means of control valve about its quantity delivered.According to stuffing box gland of the present invention, can be used for equally as follows, that is, be sealed in pump control valve valve chest and surround annular gap, especially control valve between another mechanical parts of valve chest be passed into fluid interface in such annular gap or for the fluid interface of control valve each other fluid type separate.
Also advantageously; with the stuffing box gland (at least one joint element of type described herein is arranged in this region) of the axially upper back to back connection contact pin of at least one sealing contact pin and at least one, especially at least one is for joining the joint element that passes into region of fluid passage to; its outer peripheral surface at control valve or the inner peripheral surface place that surrounds the parts (for example herein the rotor of phase regulator required for protection) of control valve engage, or are provided for such joint.Sealing contact pin can especially form herein as illustrated, and around the central axis of control valve.This type of stuffing box gland preferably has at least one other sealing contact pin, and it is other that it is looped around described sealing contact pin in the axial direction.In addition, stuffing box gland can have axial projection, and at least one or preferred a plurality of joint element are arranged in the region of connected connection contact pin as an alternative therein.As substituting of at least one or more joint element, with the stuffing box gland of or preferred two or more sealing contact pin equally can be by control valve or the overmolding of inner circumference that surrounds if desired the parts of control valve produce.Figure 19 to 23 has for example shown this type of stuffing box gland and layout thereof, yet it is not subject matter of an invention required for protection herein.Claimant retains as follows, that is, for example, to this type of such stuffing box gland and similarly the mechanical part (rotor of housing or phase regulator) with to surround protruded and form with these parts the claim that device that stuffing box glands are arranged in the control valve of annular gap wherein proposes self.
Favourable feature describes equally in dependent claims and combination thereof.
Accompanying drawing explanation
By accompanying drawing, embodiments of the invention are described hereinafter.In the disclosed feature in embodiment place, correspondingly in the independent mode with arbitrary characteristics combination, form the theme of claim and advantageously improve design proposal described above.Wherein:
Fig. 1 has shown first embodiment's the camshaft phase regulator through assembling with stator, rotor, center type fixed structure and stuffing box gland,
Fig. 2 has shown first embodiment's phase regulator with the form of cross section,
Fig. 3 has shown first embodiment's rotor, fixed structure and stuffing box gland,
Fig. 4 has shown the fixed structure with fixing stuffing box gland with the form of axonometric drawing such as grade,
Fig. 5 has shown second embodiment's the fixed structure with stuffing box gland with the form of longitudinal section,
What Fig. 6 had shown the 3rd embodiment is assembled in rotor and the stuffing box gland at camshaft place by means of center type fixed structure,
Fig. 7 has shown the 4th embodiment's rotor, center type fixed structure and stuffing box gland,
What Fig. 8 had shown the 5th embodiment in the first longitudinal section is assembled in rotor and the stuffing box gland at camshaft place by means of center type fixed structure,
Fig. 9 has shown the 5th embodiment's layout in the second longitudinal section,
Figure 10 has shown the 5th embodiment's layout with the form of cross section,
What Figure 11 had shown the 6th embodiment is assembled in rotor and the stuffing box gland at camshaft place by means of center type fixed structure,
Figure 12 has shown the 7th embodiment's the center type fixed structure with stuffing box gland,
Figure 13 has shown the 7th embodiment's fixed structure and stuffing box gland with the form of axonometric drawing such as grade,
Figure 14 has shown the 8th embodiment's the center type fixed structure with stuffing box gland,
Figure 15 has shown the 9th embodiment's the center type fixed structure with stuffing box gland,
Figure 16 has shown the tenth embodiment's rotor, center type fixed structure and stuffing box gland,
Figure 17 has shown the 11 embodiment's rotor, center type fixed structure and stuffing box gland,
Figure 18 has shown the 12 embodiment's rotor, center type fixed structure and stuffing box gland,
Figure 19 has shown the 13 embodiment's the center type fixed structure with improved stuffing box gland,
Figure 20 has shown the 14 embodiment's the center type fixed structure with improved stuffing box gland,
Figure 21 has shown the 15 embodiment's the center type fixed structure with improved stuffing box gland,
Figure 22 has shown the 16 embodiment's the center type fixed structure with improved stuffing box gland,
Figure 23 has shown the 17 embodiment's the center type fixed structure with improved stuffing box gland,
Figure 24 has shown first embodiment's the improved phase regulator with stuffing box gland and center type fixed structure.
Embodiment
Fig. 1 has shown a kind of camshaft phase regulator with the form of longitudinal section.Camshaft phase regulator is arranged in the end of the tip side of camshaft 1, and for the adjusting of phase place (being that camshaft 1 is with respect to the angle position of the bent axle of the driving motor of internal-combustion engine, for example Motor Vehicle).The camshaft 1 rotation axis R that rotates is supported on the machine case place of internal-combustion engine rotationally, cylinder head place for example, and can be covered by cylinder cover plate.
Camshaft phase regulator comprises the stator 3 that can be driven by crankshaft rotating formula, and the rotor 7 being connected with the antitorque formula of camshaft 1.Stator 3 is by actuation gear 4(sprocket wheel for example), cover plate 6 and be axially arranged in actuation gear 4 and cover plate 6 between impeller 5 be assembled into.Actuation gear 4, impeller 5 and cover plate 6 are connected on antitorque formula ground to each other.The assembling of stator 3 is only exemplary.Alternatively, stator 3 equally can be by a plurality of or can be spliced by two parts only equally by three parts 4,5 and 6 as an alternative, for example, by integral type part 4,5 and part 6 or by part 4 and 5,6 splicings of integral type part.In principle, it can integrally be cast equally.Actuation gear 4 for example can be in outer most surrounding formula at impeller 5 equally and be shaped, and actuation gear 4 in lateral seal the cover plate region of stator-rotor arrangement be the constituent element of rotor 7.As the additional of the cover plate region consisting of actuation gear 4 or substitute, cover plate 6 can be the constituent element of rotor 7.Stator 3 and rotor 7 have formed the hydraulic type rotation motor according to blade principle.
Camshaft phase regulator has the fixed structure 10 that is arranged in center about stator- rotor arrangement 3,7, and it extend in rotor 7 in centre, and in an embodiment for example preferably equally through rotor 7, and rotor 7 is connected with the antitorque formula of camshaft 1 ground.Stator 3 supports by rotor 7.Fixed structure 10 has attachment portion 12, and itself and camshaft 1 are fixedly connected therein.As preferred but be only exemplary, fixed structure 10 extend in the accommodating part of the end of the tip side of camshaft 1 shaping, and tightens with camshaft in accommodating part, and attachment portion 12 has outside thread.
Phase regulator comprises control valve, and it is for adjusting fluid type, that be preferably hydraulic type of rotor 7 angle position occupied with respect to stator 3.Control valve comprises valve chest, and it consists of fixed structure 10 and is correspondingly also known as hereinafter valve chest 10, and control valve is also included in valve chest 10 can regulate the valve piston 20 of arranging by axial reciprocating.Therefore, the center type immobilising device that valve chest 10 is connected for the antitorque formula of camshaft 1 and rotor 7 equally as follows in dual functions, that is, it is for example connected by screw rotor 7 is pressed on the end face of camshaft 1 in the state of assembling after setting up joint connection.
Fig. 2 has shown first embodiment's phase regulator with the cross section II-II of Fig. 1.Impeller 5 forms external component, and rotor 7 forms the inner member of revolution motor.Week locates to have the hoof piece 5a radially inwardly stretching out to hollow impeller 5 within it.Rotor 7 has the blade 8 that radially outward stretches out, and the hoof piece 5a of itself and stator 3 has formed the first control chamber K 1with the second control chamber K 2.Control chamber K 1in circumferential direction, correspondingly towards a side of the blade 8 of rotor 7, arrange, and control chamber K 2correspondingly towards opposite side, arrange.If control chamber K 1under pressure and control chamber K 2unloaded, rotor 7 clockwise rotates in Fig. 2 with respect to stator 3 or impeller 5, until be up to end position occupied in Fig. 2.If control chamber K 2under pressure and control chamber K 1pressure is unloaded, and rotor 7 rotates counterclockwise with respect to stator 3.In a sense of rotation therein of carrying out with respect to stator 3 rotatablely move corresponding to camshaft 1 with respect to bent axle in advance, and this relative delay with respect to bent axle corresponding to camshaft 1 on other direction that rotatablely moves.
Hypothesis is as follows in an embodiment, and stator 3 is deasil driven on sense of rotation D.Therefore, control chamber K 1to shift to an earlier date chamber and control chamber K 2to postpone chamber.In Fig. 2, rotor 7 occupies anticipated future position with respect to stator 3, and camshaft 1 shifts to an earlier date with respect to bent axle therein.If postpone chamber K 2be loaded pressure fluid and shift to an earlier date chamber K 1unloaded, rotor 7 rotates up until be up in a delay position in backwardness side.In anticipated future position, rotor 7 is locked by means of stop pin 80.Pin 80 can overcome by the pressure-loaded of pressure chamber 81 power of locking spring 82 and from lock position, move to enable possition so that can be in the direction towards delay position movable rotor 7.For this reason, itself and the delay chamber K that is close to layout 2fluid is communicated with.Correspondingly by backstop, contact given in advance with postponing in advance.In two end positions or limit position, at least one in rotor blade 8 correspondingly contacts with a formation backstop in stator hoof piece 5a.In preferred embodiments, rotor 7 can be not only between these two angle of swing end positions with respect to stator 3 by reciprocally rotary adjusting, and can be by chamber K in advance 1with delay chamber K 2corresponding pressure-loaded and by hydraulic type be fixed on arbitrarily in neutral position.
Torsion spring 17 is supported on stator 7 places and is supported on rotor 7 places by another spring end by a spring end, and one in two angle of swing end position, be suitably to compress rotor 7 in the direction towards this angle position (being anticipated future position in these embodiments), rotor 7 can be locked by means of locking mechanical device therein.
Fig. 3 has shown rotor 7 and fixed structure 10, that is to say with the valve chest 10 and control valve of the valve piston 20 and other parts of phase regulator and extracts out from the joint with camshaft 1 is connected.These parts are filtrating equipment 30, lockable mechanism 40 and stuffing box gland 50, and wherein lockable mechanism 40 and valve chest 10 and valve piston 20 have formed the element of construction of self, and it can pre-install the central passage that is pushed through rotor 7.
Valve piston 20 is hollow, and with axially extended hollow cavity 22, its axial end portion place at valve piston 20 is opened wide, and forms axial piston entrance 21 at this place.In addition, valve piston 20 has piston outlet 23, and it radially guides the outer cover through the encirclement cavity 22 of valve piston 20.At it, another axial end portion place back to piston entrance 21 has the coupling mechanism 25 for connecting with control unit to valve piston 20, and it can cause the axial adjustment of valve piston 20.Coupling mechanism 25 serves as the operating handle of valve piston 20.Coupling mechanism 25 stretches out in the end of valve piston 20, and it is in the axial direction facing to control unit.Coupling mechanism 25 is through the end face envelope wall 11 of valve chest 10.End face envelope wall 11 has surrounded coupling mechanism 25 with tighter cooperation, although and owing to there being reciprocally mobile coupling mechanism 25, also can realize the sealing for the fluid-sealing type of valve chest 10.
Control unit can be especially Electromagnetic Control element, axial stroke electromagnet for example, and it is with the coil that can switch on and armature.Coil and the machine case of internal-combustion engine, for example be assemblied in machine case place the antitorque formula of housing be connected.Armature can move axially with respect to coil.It directly forms and to have formed connection that axial pressure contacts on coupling mechanism 25.In the situation of coil electricity, point to vertically the adjusting masterpiece of coupling mechanism 25 for armature, this power for example, is applied on coupling mechanism 25 in connection effect (pure axial pressure contact), and is therefore applied on valve piston 20.
Control valve comprises valve spring 14, and the adjusting power of its spring force and control unit works on the contrary.Valve spring 14 is supported on valve chest 10 places, and in the direction upper support towards control unit at valve piston 20 places.Control unit is controlled (being for example energized) by the control gear of internal-combustion engine.This is controlled preferably via the indicatrix being stored in the storage of machine control unit and realizes, for example depend on the rotating speed, load of bent axle or other or the other operation for internal-combustion engine and the parameter of overstating and wanting.
Valve piston 20 is reciprocally arranged in the axial cavity of valve chest 10 center movably in illustrated mode.Valve chest 10 at it axial end portion place back to control unit have axial, in centre, lead to the pressure interface P in housing cavity, it is via camshaft 1(Fig. 1) and can be supplied the fluid being under pressure.This fluid can be especially the lubricant oil for internal combustion engine lubrication, and it can be used for thrust bearing lubricated of camshaft 1 for example equally, thereby makes pressure interface P be connected to the lubricant oil supply department of camshaft 1.This pressure fluid flows in valve chest 10 by axial pressure interface P, and the piston entrance 21 being in axially concordant by relative pressure interface P flow in cavity 22.By cavity 22, for example, in side direction, preferably separating in the radial direction piston outlet 23, depend on the axial position of valve piston 20, pressure fluid export 23 by piston and is supplied to and shifts to an earlier date chamber K 1or delay chamber K 2, so that adjust rotor 7 with respect to the phase place of stator 3, and therefore adjust camshaft 1 with respect to the phase place of bent axle.Piston outlet 23 consists of the passage that radially passes the outer cover of valve piston 20 of distributed arrangement on the circumference at valve piston 20.
Valve chest 10 have be guided through its outer cover for fluid to control chamber K 1and K 2supply and fluid by control chamber K 1and K 2the interface of discharge, i.e. control interface A, control interface B and valve outlet port or storage tank interface T aand T b.Interface A and B and interface T aand T bit is the straight passage through the outer cover of valve chest 10.As preferably but be only exemplary, control interface A and B radially extend through outer cover on the shortest path.
Fig. 1 and 3 has shown the valve piston 20 in the first axial piston position, and spring element 14 remains on valve piston 20 in this first axial piston position.In first piston position, piston outlet 23 is connected with control interface A.The pressure fluid of supplying via pressure interface P flow in cavity 22 in the axial direction by axial piston entrance 21, and by the piston outlet 23 of diverging out, flows to the control chamber K that is associated with control interface A by this place 1.Control chamber K 2via control interface B and outlet or storage tank interface T bbe connected with storage device, and therefore on pressure, unload.
In the periphery of valve piston 20, with 360 ° around form be extended with groove 26, it connects control interface B and storage tank interface T in first piston position b.By 26 of grooves, from axle, looked up after piston outlet 23, form another axially extended groove 27 in the periphery of valve piston 20, it extends equally in the periphery of valve piston 20 surrounding type.Groove 27 in first piston position with storage tank interface T abe connected.Storage tank interface T abe associated with control interface A.Yet, storage tank interface T aseparate the sealing contact pin in formation between piston outlet 23 and groove 27 by valve piston 20 in first piston position and control interface A fluid type.
If the armature of control unit is loaded to surpass the adjusting power of the spring force of spring element 14, control unit axially promotes valve piston 20 by shown first piston position in the direction towards pressure interface P so, and in the situation of corresponding larger adjusting power, promote it in the second axial piston position, be no longer wherein that control interface A but another control interface B are connected with piston outlet 23 always.In the second piston position, the sealing contact pin forming between piston outlet 23 and groove 26 of valve piston 20 is by control interface B and storage tank interface T bseparately, make control chamber K in the second piston position 2be loaded pressure fluid.In addition,, in the second piston position, groove 27 connects control interface A and valve outlet port or storage tank outlet T a, make the fluid can be from control chamber K 1middle outflow and it is unloaded on pressure.In the diagram of Fig. 2, rotor 7 correspondingly moves widdershins with respect to impeller 5, and therefore relative stator 3 moves up in the side towards delaying position.With rotor 7 antitorque formulas the camshaft 1 that is connected in its phase place, with respect to bent axle, be conditioned an identical corner.
By pressure interface P, flow to the first axial force that the on high-tension side fluid in control valve loads to work in the direction towards control unit to valve piston 20.For this first axial force of balance, the fluid valve piston 20 of can flowing through in the direction towards control unit, make to be in the face of the back side of control unit at it this back side and seal between wall 11 and set up hydrodynamic pressure with end face, its back side towards valve piston 20 applies reaction force (the second axial force).Because projection plane that can on-load pressure fluid has been reduced connecting structure 25, with it, stretch into the cross sectional area through end face envelope wall 11, therefore the axial reaction force (the second axial force) corresponding to the cross sectional area of coupling mechanism 25 is less than the first axial force.This has just produced the synthetic end thrust changing with the difference pressure corresponding and that depend on fluid on projection plane.The characteristic curve of control valve correspondingly changes, and this may cause obvious distortion, because the pressure of fluid may fluctuate the in service of internal-combustion engine.
In order to increase the second axial force, valve piston 20 has radially enlarged piston portion 28, and valve chest 10 has the housing parts 18 expanding matchingly, and it surrounds expansion section 28 to coordinate closely.If valve chest 10 concurs hermetically with valve piston 20, valve piston 20 illustratively has whole identical cylindrical cross section except expansion section 28 in its periphery.For pressure fluid being directed to the back side place of valve piston 20, valve piston 20 has from piston entrance 21 looks and is axially positioned at the supply port 24 after piston outlet 23, and it is formed by a plurality of passages in bottom valve piston that distribute around central axis R.Expansion section 28 and correspondingly housing parts 18 are so measured, that is, the increase being obtained by expansion section 28 of facing the projection plane of control unit 15 has at least compensated the part being in the great majority that " loses " cross sectional area for balance of coupling mechanism 25.In view of axial equilibrium of forces, control valve can be consistent with the control valve in DE102010002713A1, especially for locate claimed embodiment at this for.
In the end face of the opposite faces envelope wall 11 of valve piston 20, formed fluid and connected 29, its always with supply port 24 in being communicated with.Fluid connects 29 can for example form breach or groove, or forms the groove that is pocketed at the associated end face place in valve piston 20 being connected with supply port 24.By providing fluid to connect 29, guaranteed that pressure fluid can reach the back side of the opposite faces envelope wall 11 of valve piston 20 from piston cavity 22, even especially when valve piston 20 abuts against end face envelope wall 11 with its back side.Adding or substituting as the fluid connection 29 forming at piston place, a kind of like this fluid connects 29 can seal at end face the formation of the end in the face of piston base of wall 11 equally, wherein, a kind of like this fluid connects 29 and must be connected with supply port 24 all the time on the one hand, and axially relative and put with the end region of piston 29 on the other hand.Valve piston 20 with end face envelope wall 11 axially back to place, other end can be provided with similar fluid and be connected 29, shown in Fig. 1 and 3, so that guarantee equally all the time as follows at this distolateral place, that is, even if valve piston 20 relevant distolateral is loaded pressure fluid in valve piston 20 is in stop dog position in the direction towards pressure interface P time similarly.Similarly, this fluid connection 29 is connected with piston cavity 22 all the time.In addition, following same applicable at this piston side place, that is, as fluid at valve piston 20 places, connect 29 additional or substitute, can be similarly in the end that relatively put of valve chest 20 or can and move to another structure place in axial stop facing to it at valve piston 20 and form fluid and connect 29.
Filtrating equipment 30 extends vertically on its partial-length in valve piston 20.In order to obtain the filtration cross section that can cause that in circulation pressure fluid is clean, filtrating equipment 30 is configured to hollow structure, forms and filters nested structure or filter pocket or filter basket.This filtration nested structure consists of cylindrical outer cover 31 in this embodiment and the bottom 32 that formed the axial end portion in the cavity in valve piston 20 22 that filters nested structure.Outer cover 31 opens wide the end, upstream about the pressure fluid of inflow at it, thereby makes to filter at this place entrance 34 via the whole interior cross section formation at least substantially of outer cover 31.Between bottom 32 and filtration entrance 34, outer cover 31 has impaled filtration inner chamber.Can be flowed through by pressure fluid, in the situation of flowing through, stay particulate contamination and thus the filtering material of cleaning pressure fluid almost formed the whole circumference of outer cover 31.
Filtering cross section forms by following that filters nested structure 31,32,, pressure fluid reach to before piston outlet 23 via filtering pressure fluid that entrance 34 flows into this filtration cross section of flowing through, and it has been capped the clean and stark suitable filtering material for pressure fluid.In the situation with the filtration nested structure correspondingly consisting of filtering material completely of columniform outer cover 31 and smooth bottom 32 for example, columniform circumferential surface and circular bottom surface have generally formed filtration cross section.
Filtrating equipment 30 is supported in and is especially axially fixed on thus valve chest 10 places.Filtrating equipment 30 has the shape of the tall hat of the longitudinal extension that is included in the outer cover 31 that upwards preferably has fluctuating week on the whole.
Lockable mechanism 40 is equally also arranged in the upstream of filtrating equipment 30 in valve chest 10.It is configured to the safety check with the locking spring 42 that can exert pressure to locking body 41 towards locking body seat with locking body 41.
If control valve is the pressure fluid under certain pressure (it surpasses the pressure in the spring force of lockable mechanism 40 and the inner chamber of filtrating equipment 30) in the supply of pressure interface P place, locking body 41 can depart from its locking body seat and open pressure interface P so.Pressure fluid flow in valve chest 10 under the situation around stream locking body 41 by pressure interface P, and flow in filtration nested structure 31,32 by axial passage and the axially upper back to back filtration entrance 34 of lockable mechanism 40, flows to and filters in inner chamber.Pressure fluid is by this place filtration cross section of flowing through, cleaned in the situation of flowing through at this, and flow in the part in filtrating equipment 30 downstreams in piston cavity 22 via whole filtration cross section.According to the axial position of valve piston 20, piston cavity 22 is connected with further control interface A or B via piston outlet 23, and via these control interfaces to be associated with relevant control interface A or the control chamber K of B 1or K 2be connected.Control chamber K 1and K 2other group via the control interface A being associated with this group or B and with the storage tank interface T being associated aor T bbe connected, and correspondingly unloaded on pressure.
The axial lead of the pressure fluid flowing into contributes to the reduction of flow losses equally.Therefore at this on the one hand, the path downstream of valve inlet P, lockable mechanism 40, filter entrance 34 and piston entrance 21 be correspondingly arranged in valve chest 10, lockable mechanism 40, filtrating equipment 30 and valve piston 20 axially on distolateral place.Described entrance and path are on common axial straight line, and for example preferably (but only mountain pass exemplarily) is on axis R.With which, pressure fluid experiences the least possible deflection by pressure interface P until piston exports 23, and correspondingly bears thus less flow losses.This contributes to improve the governing speed of phase regulator.In this example, entrance and path are axially arranged successively.In principle, one or more entrances or an entrance and an outlet can be in the axial direction in identical height, in the situation of this path at lockable mechanism 40 and filtration entrance 34, are almost such.
In the meaning of higher governing speed, by utilizing piston cavity 22 to become possible larger filtration cross section, can work equally.Another makes larger filtration cross section become possible factor is that filtrating equipment 30 is configured to hollow-core construction or filters nested structure 31,32.In this embodiment, filter nested structure 31 and 32 and there is smooth bottom 32.In a kind of variant scheme, bottom 32 for example can outwards be heaved equally, or self has formed filtration cross section.In principle, outer cover 31 for example can be equally taper contraction and form, thereby makes bottom 32 from saying and do not exist narrowly.In addition can realize equally, the outer cover 31 shrinking with other form of longitudinal extension.Yet, be provided as columniform filtration nested structure 31,32 and there is manufacturing technology aspect.
About filtrating equipment integrated in control valve and in view of the lockable mechanism of arranging in control valve can be with reference to German patent application DE102011084059, especially can be equally with reference to the claim of this application.Should be incorporated in this in the disclosure of first to file.
Stuffing box gland 50 is arranged in annular gap 16, and it is formed between the fixed structure 10 and rotor 7 consisting of valve chest 10.Pressure fluid can be via annular gap 16 as is supplied to control chamber K as described in above 1and K 2, and equally can be via annular gap 16 by control chamber K 1and K 2discharge.The control interface A of control valve and B and storage tank interface T bin the periphery of valve chest 10, be passed in annular gap 16.The connecting passage of rotor 7, to control chamber K 1connecting passage 7a(Fig. 2) with to another control chamber K 2other connecting passage at the inner peripheral surface place of rotor 7, be passed into equally in annular gap 16.Passage and the control chamber K of the formation control interface A of valve chest 10 1the connecting passage 7a being associated on identical axial height, be passed in annular gap 16 at least haply.Passage and the control chamber K of the formation control interface B of valve chest 10 2the connecting passage being associated at least haply on equal axial height (yet with control interface A axially spaced-apart ground) be passed in annular gap 16.Control interface A and B in annular gap 16 by stuffing box gland 50 fluid types be separated from each other.In addition, stuffing box gland 50 in annular gap 16 by control interface B and storage tank interface T bseparately.Finally, stuffing box gland 50 equally also with control interface B back to a side place sealed the control interface A being in annular gap 16.Therefore, it separates interface A and B equally with external environment condition.
Stuffing box gland 50 comprises three sealing contact pin, i.e. the first sealing contact pin 51, the second sealing contact pin 52 and the 3rd sealing contact pin 53, and stuffing box gland 50 has met mentioned sealing function above thus.Therefore, sealing contact pin 51 has sealed annular gap 16 in an axial end, and has sealed equally control interface A in this axial end.Sealing contact pin 52 is separated from each other two control interface A and B, and sealing contact pin 53 is by the control interface B in annular gap 16 and storage tank interface T bseparately.In addition, stuffing box gland 50 is included between sealing contact pin 51 and 52 and axially extends and the connection contact pin 56 connected to one another that is fixed, and axially extends and the connection contact pin 57 connected to one another that is fixed between sealing contact pin 52 and 53.Stuffing box gland 50 axially extends haply in the whole length of rotor 7.
Stuffing box gland 50 is crossed interface A, B and T in the axial direction band extend out, so that form on the one hand sealing contact pin 51 and form and storage tank interface T on the other hand bform fit and the joint of frictional fit.Stuffing box gland 50 is in the axial direction at storage tank interface T bregion in there are a plurality of joint elements 59, it correspondingly forms the projection of the inner radial of stuffing box gland 50, for example, as supporting, and correspondingly extend in the joint complementary elements 19 of valve chest 10.Engage complementary elements 19 as follows by storage tank interface T bnear the region passing into mouthful, form, that is, each in joint element 59 extend into the formation storage tank interface T of valve chest 10 bpassage in, and respective channel pass into port area in certain flexible pressure plaster, lean on.Stuffing box gland 50 by this effect form fit and frictional fit in the periphery of valve chest 10, on axial and circumferential, be maintained in position.In addition, all sealing contact pin 51 to 53 correspondingly abuts in the periphery of valve chest 10 with flexible clamping force.The correspondingly interior week extruding towards rotor 7 with elastic clamping power of sealing contact pin 51 to 53, so that meet its sealing function with which.
Sealing contact pin 51,52 and 53 is correspondingly diametrically outwards towards being tapered of rotor 7 in interior week, and for example preferably (but only for exemplarily) is taper and is tapered.Based on radially tapered profile, the radial elastic distance of sealing contact pin 51 to 53 for example relatively rectangular profile be increased, and in the situation that the gap width recording diametrically of annular gap 16 changes to guarantee thering is corresponding desired sealing for each sealing contact pin 51 to 53 compared with high reliability.
Stuffing box gland 50 by the soft piece of material formula of elasticity form.It especially can be by elastomeric material, preferably by elastomer plastic material, form (suitably with Shooting Technique).In this way, in the situation of moulding, can manufacture equally all functions element of stuffing box gland 50, for example, especially seal contact pin 51 to 53, connect contact pin 56 and 57, and the joint element 59 being connected for the locking with valve chest 10.
In Fig. 4, to wait axonometric drawing form to show with being located at valve chest 10(, be fixed structure 10) control valve of the stuffing box gland 50 that is fixed to upper and form fit and frictional fit.Can see interface A, B, T aand T bby a plurality of passages that pass in the outer circumferential face place of valve chest 10, formed.Stuffing box gland 50 its connect in the region of contact pin 56 and 57 and with storage tank interface T bin the axial projections of axial overlap, there is passage radially, it is preferably arranged on the circumference of stuffing box gland 50 in the following manner, in the after positioning of stuffing box gland 50 and thus simultaneously under fixing state, interface A, B or T that this passage is correspondingly associated with the formation of valve chest 10 bpassage to pass into hole overlapping.Stuffing box gland 50 has extended the passage through valve chest 10 diametrically in very simple mode, thus, for the flow resistance of pressure fluid, can remain less.Joint element 59 with engage complementary elements 19(Fig. 3), be storage tank interface T bthe joint that passes into hole for accurate location, wherein, a joint element 59 is just enough in principle.Yet by forming a plurality of joint elements of preferably arranging evenly distributedly around rotation axis R 59, at least two are suitably offset each other the joint element 59 of approximately 180 ° in this type of embodiment, can improve the cooperation of stuffing box gland 50.If valve chest 10 is with camshaft 1 is spiral tightens as preferably, the frictional force that may occur in the region of sealing contact pin 51 to 53 in the situation being threaded in foundation so joint by a plurality of joint elements 59 on the circumference of stuffing box gland 50 is distributed formula and bears.
Fig. 5 has shown the fixed structure 10 with stuffing box gland 50 in second embodiment.As in first embodiment, this fixed structure 10 consists of the control valve mediating about stator-rotor arrangement.It is and control valve identical in first embodiment.Only have stuffing box gland 50 different from first embodiment as follows, that is, the axial projections that first embodiment's joint element 59 is arranged in its region is cancelled.As with storage tank interface T bthe substituting of joint in hole, formed stuffing box gland 50 and fixed structure 10 or the form fit of valve chest 10 in the region of control interface A and the joint of frictional fit.Correspondingly, stuffing box gland 50 has a plurality of joint elements 59 that upwards distribute in week in the region that connects contact pin 56, it has formed the projection of negotiable inner radial as in first embodiment, for example again form supporting, and correspondingly extend into valve chest 10 formation in the passage of control interface A, and with flexible pressure plaster, lean against the circumference place of respective channel at it near the region passing into mouthful.The connection of this draw-in groove shape and conforming in the first embodiment, as said only with following difference, not with storage tank interface T bbut form and engage with control interface A.In addition stuffing box gland 50 and conforming in first embodiment.It can replace first embodiment's stuffing box gland 50.
In a kind of modification, as an alternative, this joint can form with control interface B equally as follows,, in the region that connects contact pin 57, forms corresponding joint element 59 that is.In first embodiment, at least one joint element 59 or a plurality of joint element 59 are as being arranged on equally substituting of prominence the place connecting in contact pin 56 and 57.Joint element 59 equally must be correspondingly restricted in the projection that connects only or stuffing box gland 50 in contact pin, and one or more joint elements 59 can be arranged on a plurality of this type of contact pin place equally in principle, for example, at two, connect contact pin 56 and 57 places.Yet only the one or more joint elements 59 in the region of in connecting contact pin or the region in projection are completely enough for location, and make fixedly becoming of stuffing box gland 50 easy.
Fig. 6 has shown the 3rd embodiment's center region, the especially camshaft 1 of phase regulator and the link of rotor 7 and center fixed structure 10, and fixed structure 10 consists of the valve chest 10 of center control valve as in the foregoing embodiment.The difference of the control valve in control valve and first and second embodiment is, the filtrating equipment 30 being integrated in valve is cancelled, yet lockable mechanism 40 is modified in design and does not change and be similarly still integrated in control valve in view of its function, and pressure interface P radially extends in valve chest 10.Except these are in Fig. 6 apparent difference, control valve 10 and conforming in first embodiment.
Except the sealing function of having described, stuffing box gland 50 is not only in view of sealing function but also expand for filtering function.Stuffing box gland 50 also comprises three sealing contact pin 51,52 and 53 and is connected contact pin 56 and 57, the thus satisfied function identical with the first embodiment's stuffing box gland 50 of stuffing box gland 50.In addition, it comprises other sealing contact pin, i.e. the 4th sealing contact pin 54 and the 5th sealing contact pin 55.Utilize sealing contact pin 51 to 55, pressure interface P, control interface A and B and storage tank interface T bin annular gap 16, be separated from each other, and these all interface devices that are in annular gap 16 seal by outside sealing contact pin 51 and 55 two axial ends fluid type.Annular gap 16 comprises the first axial component consisting of each other rotor 7 and valve chest 10, and back to back the second axial component being formed as follows by valve chest 10 and camshaft 1,, camshaft 1 has at its axial end portion place the cavity that valve chest 10 extend into wherein and valve chest 10 therefrom passes, so that form and be connected with the antitorque formula of camshaft 1 by means of attachment portion 12.
The 3rd embodiment's stuffing box gland 50 comprises filtrating equipment 300, and it replaces first embodiment's filtrating equipment 30.Filtrating equipment 300 is axially arranged between sealing contact pin 54 and 55, and sealing contact pin 54 and 55 is connected to each other, so formed connection contact pin stuffing box gland 50 is interior.Filtrating equipment 300 is hood-like, and can consist of plastics or metal in particular.It is for the permeable corresponding filter screen of pressure fluid, makes pressure fluid in the situation of filtrating equipment 300 of flowing through, granular impurity is clean.Filtrating equipment 300 has formed for flowing to the flow cross section of the pressure fluid of valve.As preferably, filtrating equipment 300 has surrounded pressure interface P.Filtrating equipment 300 can for example comprise metal non-woven fabric or metal fabric, plastics non-woven fabric or plastic fabric, or as metal-plastic non-woven fabric or metal-plastic fabric, or especially by a kind of like this non-woven fabric or fabric, formed.Filtrating equipment can comprise metallic thin film or the plastic pellicle of perforation or punching equally, or consists of such film.
Pressure fluid is supplied to phase regulator via camshaft 1, interface P at this via camshaft 1 flows in annular gap 16, the filtrating equipment 300 of flowing through, and via being passed in the cavity 22 that pressure interface P in annular gap 16 and lockable mechanism 40 flow to valve piston 20 of control valve, and according to the axial position of valve piston 20, via interface A or interface B, be supplied to alternatively like that as already described one group of control chamber K of respective associated by this place 1and K 2, and can organize control chamber K by another 1and K 2discharge.Thus can be with reference to the explanation for first embodiment.The interface P of camshaft 1 is arranged in the hollow end sections of camshaft 1.Interface P is passed in the annular gap 16 consisting of camshaft 1 and valve chest 10.The interface P of camshaft 1 is passed in annular gap 1 in axially offset manner with respect to the interface P of control valve, yet can on identical axial height, pass into equally in principle.Filtrating equipment 300 is overlapping with two P interfaces that are associated with each other in the axial direction.
Stuffing box gland 50 can especially be formed with Shooting Technique by elastomeric material as illustrated in first embodiment relatively.Filtrating equipment 300 is shaped as follows in injection moulding process, that is, filtrating equipment 300 is being configured to seal under the situation of contact pin 54 and 55 at its surrounding type ground, axial end portion place overmolding in injection moulding, and is embedded into thus in the elastic matrix of stuffing box gland 50.
Sealing contact pin 51 to 55 is compared first embodiment and is modified as follows, that is, it is not only radially inwardly tapered towards the circumferential surface of valve chest 10, and towards the circumferential surface of rotor 7 and camshaft 1, is radially tapered radially outwardly.The profile of sealing contact pin 51 to 55 assumes diamond in shape at least haply, wherein, two tapered diamond-shaped areas form sealing with the circumferential surface of facing respectively of valve chest 10 and rotor 7 and contact, and in the region of two remaining rhombus neck areas, connect contact pin 56,57,58 and be connected as other connection contact pin with filtrating equipment 300.
Fig. 7 has shown the 4th embodiment's phase regulator, and it has differently as follows from current described embodiment, and stuffing box gland 50 is not fixed structure 10 places that are fixed on center, but is fixed on rotor 7 places.Fixed structure 10 consists of the center control valve (by its valve chest 10) of phase regulator again.Control valve is gone up all and is conformed in all fields with the control valve of integrated form lockable mechanism 40 with the integrated form filtrating equipment 30 that comprises in first embodiment.
In the 4th embodiment, stuffing box gland 50 and rotor 7 form fit formulas ground and preferably same frictional fit formula ground are connected.Stuffing box gland 50 abuts on the interior week of rotor 7 with periphery.Stuffing box gland 50 comprises the first sealing contact pin 51, the second sealing contact pin 52 and the 3rd sealing contact pin 53 and another sealing contact pin 54, sealing contact pin 54 is mainly used in improving the fixing of rotor 7 places, yet alternatively equally can with Fig. 7 in bear as follows sealing function in the link of unshowned camshaft,, when phase regulator is contained in camshaft place, camshaft is alternatively axially towards sealing contact pin 54 extruding.As in first embodiment, sealing contact pin 52 separate control interface A and control interface B, and sealing contact pin 53 same as in first embodiment by control interface B and axial on storage tank interface T side by side bseparately.Sealing contact pin 51 sealing ring gap A as in first embodiment in principle, and thus equally with control interface B back to place, side seal control interface A.As in first embodiment, in connecting contact pin 56 and 57, form and have passage, so that set up fluid between the relevant connection passage of control interface A and B and rotor 7, be connected.Control interface A is associated with connecting passage 7a(Fig. 2), and control interface B is associated with connection control interface B and control chamber K 2another connecting passage 7b.In these connecting passages 7b one is shown in Figure 7.Sealing contact pin 52 and 53 radially inwardly, towards being tapered in the face of being for example taper in the direction of circumferential surface of valve chest 10, sealing contact pin 52 and 53 is exerted pressure with certain elastic pressure facing to this circumferential surface.
Two outside sealing contact pin 51 and 54 is in the axial direction fixing of stuffing box gland 50. Sealing contact pin 51 and 54 correspondingly extend in corresponding groove radially outwardly, in this embodiment its be respectively corresponding axis at rotor 7 to end around convex shoulder.In the axial direction with camshaft back to end, the convex shoulder that valve chest 10 protrudes with radially outward is axially exerted pressure facing to rotor 7 and sealing contact pin 51, thus, rotor 7 axially faces toward on the one hand the end face of the facing extruding of camshaft in link, and the antitorque formula that forms thus camshaft and rotor 7 is connected, and by means of sealing contact pin 51, sealingly sealed gap 16 on the other hand.In the face of the end of camshaft, annular gap 16 has extended storage tank interface T in the axial direction b, and therefore for pressure fluid from the control chamber 9(Fig. 2 in the face of control interface B) discharge.In a kind of modification of stuffing box gland 50, can cancel sealing contact pin 54.
Seal contact pin 51 and preferably seal in addition contact pin 54 and can correspondingly in an one end, there are one or more grooves, for example one or more grooves around rotation axis R.By such measures, prevented that sealing contact pin 51 and optional sealing contact pin 54 from being pushed strongly in corresponding gap and made the sealed contact pin 51 or seal contact pin 54 and affect in conscientiously relevant degree of the fixedly convex shoulder of fixed structure 10 face toward camshaft 1 extruding rotor 7 axial compression power with it.Its reason is that when sealing contact pin 51 or 52 plastic deformation, plastic materials is tending towards wriggling under load, and may reduce in the screw-down torque therefore arranging in the situation of assembling and the operating process of corresponding axial compression power at phase regulator.Ideally, sealing contact pin 51 and preferably also to seal contact pin 54 only thick that it can be pressed together in assembling in the axial direction.Yet in the situation of the structure of one or more grooves, the plastic materials of stuffing box gland 50 has been avoided this possibility, the problem that axial compression power is reduced is avoided.
As in first embodiment, stuffing box gland 50 by elastomeric material with Shooting Technique single-piece form.Except described difference, the 4th phase regulator of embodiment and first embodiment's phase regulator conform to.
Fig. 8 to 10 has shown the zone line of the 5th embodiment's phase regulator.Fig. 8 and 9 longitudinal section are in upwards skew each other of week, and Figure 10 has shown the cross section X-X in Fig. 9.
Similarly, in the 5th embodiment, fixed structure 10 consists of the valve chest 10 of the center control valve of phase regulator.Valve piston 20 can be arranged in valve chest 10 by axial reciprocating movably.As in the other embodiments, valve piston 20 by valve spring 14 in an one moving direction and by means of the Electromagnetic Control element of valve spring 14 against being loaded with adjusting power.Embodiment in this one side reference with respect to first embodiment.As in first embodiment, rotor 7 is axially extruded facing to camshaft 1 by valve chest 10, and thus with its antitorque formula be connected.
As in first embodiment, valve chest 10 has and control chamber K 1connected control interface A and with control chamber K 2connected control interface B, it is correspondingly passed in the annular gap 16 between rotor 7 and valve chest 10, via the correspondingly associated connecting passage of annular gap 16 and rotor 7, is connected, and via itself and correspondingly associated control chamber K 1or K 2be connected.In addition, as especially as shown in Figure 9, the pressure interface P forming in valve chest 10 is passed in annular gap 16, and phase regulator is supplied with pressure fluid via this pressure interface P.The control chamber K of stator-rotor arrangement (Fig. 2) 1and K 2via the interface that indicates equally P, annular gap 16 and the control valve of camshaft 1, be supplied with pressure fluid, and via control interface A or control interface B, be loaded pressure according to the position of valve piston 20.In Fig. 8 and 9, valve piston 20 occupies following axial position, therein the pressure interface P of control valve with for control chamber K 1the control interface A of pressure-loaded be connected, and control chamber K 2via control interface B and by the inside of valve piston 20 and the storage tank interface T being formed by valve piston 20 bunloaded on pressure.If valve piston 20 overcomes the power of valve spring 14, be loaded enough large adjusting power, valve piston 20 is by control interface A and storage tank interface T so ashort circuit, storage tank interface T awith storage tank interface T bidentical, and the pressure interface P of control valve is connected with another control interface B.
In annular gap 16 between rotor 7 and valve chest 10, be furnished with stuffing box gland 50, it has the sealing contact pin around rotation axis R with first embodiment haply with conforming to, i.e. the first sealing contact pin 51, the second sealing contact pin 52 and the 3rd sealing contact pin 53.Sealing contact pin 52 between interface A and B by interface A and B fluid type be separated from each other.More precisely, stuffing box gland 50 have two sealing contact pin 52, its be axially spaced apart from each other and correspondingly for sealing.Yet two sealing contact pin 52 can be combined into one, or one of them can be cancelled.Sealing contact pin 53 separates control interface B and pressure interface P, and the interface P consisting of camshaft 1 that pressure fluid flows in annular gap 16 by it is considered as pressure interface P equally.Annular gap 16 is correspondingly included in the gap portion forming between valve chest 10 and rotor 7, and back to back another gap portion forming between camshaft 1 and valve chest 10, for example, as in the 3rd embodiment (Fig. 6).Stuffing box gland 50 extends in this another gap portion of annular gap 16.
As in the 3rd embodiment, the 5th embodiment's stuffing box gland 50 comprises filtrating equipment 300, is arranged between the interface P of camshaft 1 and the pressure interface P of valve chest 10 on the flow path of its pressure fluid in annular gap 16.The filtrating equipment 300 of can axially flowing through in annular gap 16, and filtrating equipment 300 correspondingly has the filtration cross section with axis projection face.As preferably but only, for exemplarily, filtrating equipment 300 favours rotation axis R, so that compare the filtration cross sectional area that the filtration cross section that only radially extends increases this filtration cross section, can flow through, and flow resistance is remained less.
In the 5th embodiment, stuffing box gland 50 also has a plurality of axially extended passage 60(Fig. 9 distributing around rotation axis R at it in the face of the inner peripheral surface place of valve chest 10), it is as preferably but be only unlimited at the inner peripheral surface place of stuffing box gland 50 exemplarily.Passage 60 especially can be in the form of slot.Passage 60 is correspondingly extended until the pressure interface P of valve chest 10 in the face of camshaft 1 distolateral by stuffing box gland 50, so connected the interface P of valve chest 10 and the interface P of camshaft 1.
By making stuffing box gland 50 be provided with one or more extra passages 60, pressure fluid directed and distribution alternatively in gap 16 therein, for example be supplied to the P interface of valve chest 10, thereby opened up the extra feasible scheme of design proposal of the fluid guiding of phase regulator.One or more these type of extra passages 60 can be arranged in any other situation of embodiment equally, for example resemble in the 5th embodiment by pressure fluid to the supply of center control valve, or for example to storage tank interface as storage tank interface T aand T bin the discharge of in (only as example).Corresponding stuffing box gland 50 only must be enough thick in the region of one or more passages 60, thereby can form one or more passages 60 by means of corresponding stuffing box gland 50.
Figure 11 has shown the phase regulator that is arranged in camshaft 1 place of the 6th embodiment in center region, and the antitorque formula that has wherein formed as in the other embodiments camshaft 1 and rotor 7 links.Two housings 4 and 6 that shown stator in figure.As in the other embodiments, rotor 7 by means of center type fixed structure 100 and the antitorque formula of camshaft be connected.Fixed structure 100 axially extend in rotor 7, enters into the hollow end sections of camshaft 1, and is connected with camshaft 1 in the region of its attachment portion 12, preferably spiral tightening through rotor 7.Fixed structure 100 (as in the other embodiments directly facing to camshaft 1) in the direction towards camshaft 1 axially pushes rotor 7, and has set up thus antitorque formula connection.Stator is with respect to camshaft 1 and removable in the scope of its corner controllability with respect to fixed structure 100 in the region of its housing 6 in the region of its housing 4, and preferably correspondingly rotary sliding ground supports.Stator and rotor 7 are implemented as in the other embodiments, thus can be with reference to first embodiment's explanation.
Be different from current described embodiment, fixed structure 100 be can't help control valve and is formed.In the 6th embodiment, can control the control valve that rotor 7 regulates with respect to the corner of stator and be arranged in outside about stator-rotor arrangement, be preferably adjacent to the side of stator-rotor arrangement.Pressure fluid is supplied to the control chamber K of stator-rotor arrangement 1and K 2(Fig. 2) to realize pressure-loaded, and similarly via annular gap 16 from control chamber K 1and K 2discharge is to realize discharge degree.Annular gap 16 comprises two axial components that are adjacent to each other, and one of them forms between fixed structure 100 and rotor 7, and another forms between fixed structure 100 and the hollow end sections of camshaft 1.Pressure interface P, the interface A that is associated with control chamber 8, the interface B that is associated with control chamber 9 and two storage tank interface T aand T bbe passed in annular gap 16.Two storage tank interface T aand T bdepend on the occupied state of outside control valve and equally correspondingly form the pressure interface P of phase regulator.In the first state of control valve, pressure fluid by control valve from by form storage tank interface T in another state of control valve apressure interface P flow in annular gap 16, and via annular gap 16 and be passed into the connecting passage 7a(Fig. 2 by rotor 7 in annular gap 16) the interface A that forms flows to control room K 1in.In the first state of control valve, control chamber K during this period 2via the connecting passage (it passes into port area and has jointly formed control interface B) forming in rotor 7, flow in annular gap 16 simultaneously, and located via storage tank interface T by this bunloaded on pressure towards control valve.In the second state of control valve, pressure fluid is flowed through and is formed storage tank interface T by control valve bhole (it forms the pressure interface P of phase regulator in this valve state) flow in annular gap 16, and flow to control chamber K by annular gap 16 with by the interface B that the other connecting passage of rotor 7 forms 2in.Meanwhile, control chamber K 1unloaded as follows on pressure, pressure fluid is by control chamber K 1via interface A and annular gap 16 and storage tank interface T ain the direction towards control valve, flow out.
In annular gap 16, be furnished with stuffing box gland 50, so that by interface A, B, P or T awith P or T bbe separated from each other fluid type.As already described, depend on the state of external control valve, storage tank interface T aform the pressure interface P of stator-rotor arrangement, or storage tank interface T bform pressure interface P.In addition, control valve can be configured to and make it that pressure fluid is guided to two interface T simultaneously aand T bthereby, make two storage tank interfaces jointly form pressure interface P, so that give two groups of control chamber K 1and K 2while on-load pressure fluid, and rotor 7 is remained on to anticipated future position and delay in a certain angle position between position.
Stuffing box gland 50 comprises the first sealing contact pin 51, the second sealing contact pin 52, the 3rd sealing contact pin 53 and connects contact pin 56, connect contact pin 56 axially extends and is connected to each other between sealing contact pin 51 and 52, stuffing box gland 50 also comprises sealing contact pin 50, and it axially extends and is connected to each other between sealing contact pin 52 and 53.Sealing contact pin 52 seals interface A and B relative to one another.Sealing contact pin 53 has sealed interface B and T for storage tank interface TA b.As a result, stuffing box gland is therefore by two groups of control chamber K in gap 16 1and K 2be separated from each other fluid type.Interface B and T bbetween sealing contact pin 52 and 53, in the region of connection contact pin 57, be axially passed in annular gap 16.Interface A and T aat interface B and T bleft side and the right side passed through outside the gap portion that seals of sealing contact pin 52 and 53 that are passed into wherein pass into.
Sealing contact pin 51 extend into camshaft 1 back to the groove that around convex shoulder form of a side as rotor 7 places in.In assembling condition, fixed structure 100 with fixing convex shoulder axially facing to rotor 7 extruding, and at the same time also facing to sealing contact pin 51 extruding.In this embodiment, the fixedly convex shoulder of fixed structure 100 is not directly exerted pressure facing to sealing contact pin 51, but locates via the periphery (being its housing 6) that pressing body is supported on stator.
Stuffing box gland 50 only abuts in the place of interior week of rotor 7 places and camshaft 1 with its sealing contact pin 51,52 and 53.Between stuffing box gland 50 and the periphery of fixed structure 100, leave annular gap 61, it has connected interface A and storage tank interface T a.In a kind of modification, stuffing box gland 50 is supported on the circumference place of fixed structure 100, and forms at least one axial passage at the place of interior week of stuffing box gland 50, and this axial passage opens wide at the inner peripheral surface place of stuffing box gland 50.More preferably, in this type of modification, can on the interior week of stuffing box gland 50, form a plurality of such passages by distributed earth.One or more passages replace annular gap 61 as follows, and one or more passages are by interface A and T abe connected to each other.The advantage of this modification is that stuffing box gland 50 is radially inwardly supported on fixed structure 100 places.In this embodiment, stuffing box gland 50 is looked enough firm on its axial length, so that guarantee the needed contact for sealing with the inner peripheral surface of rotor 7 and the inner peripheral surface of camshaft 1.For this reason, stuffing box gland 50 can for example comprise that it utilizes elastomeric material to carry out overmolding, so that obtain, has required flexible sealing contact pin 51,52 and 53 by sealing contact pin 51 extensions until seal the firm supporting sleeve of contact pin 53.This supporting structure for example can be formed by metallic material or sufficiently rigid plastics.In another modification, a kind of like this supporting sleeve can directly form sealing contact pin 52 or sealing contact pin 53 as follows, that is, sealing contact pin 52 or 53 is not facing to the inner peripheral surface of rotor 7 or camshaft 1, to push or correspondingly extruding to elastic properties of materials ground but shape elasticity as in the embodiment by corresponding shaping.
Figure 12 and 13 has shown a kind of fixed structure 10, its together with stuffing box gland 50 by elastomeric material overmolding.Stuffing box gland 50 comprises sealing contact pin 51,52 and 53, and in axially extended connection contact pin 56 and 57 between two adjacent sealing contact pin separately, they are connected to each other the sealing contact pin of correspondingly adjoining on left side and right side.
As in the other embodiments, fixed structure 10 is similarly the valve chest 10 of the control valve of phase regulator.Control valve and conforming in first embodiment.The stuffing box gland 50 molded by overmolding has a plurality of passages that upwards distribute in week in the region that connects contact pin 56 and 57, and it overlaps with the hole of the formation control interface A of valve chest 10 and the control channel of B.With which, the assembling condition for stator-rotor arrangement obtained control valve 10 with around rotor between the fluid of shorter lower resistance be connected.
Fixing especially reliably in order to ensure stuffing box gland 50 on fixed structure 10, fixed structure 10 has the surface of for example annular knurl that is burr shape in the intersection with stuffing box gland 50 in its periphery, with the coarse circumference 70 of a plurality of flat juts and corresponding groove, wherein elastomeric material enters into described groove in injection moulding.Thus, the surface of contact of fixed structure 10 and stuffing box gland 50 increases, and not only in the axial direction but also in the fixing form fit upwards having obtained in week between these two structures 10 and 50.Yet in principle, the outer circumferential face of fixed structure 10 can be smooth equally in the region of stuffing box gland 50.For sealing contact pin 51-53, also add as follows, that is, seal contact pin 51-53 and in the direction of the inner peripheral surface towards rotor, be tapered radially outwardly as in first embodiment.
Except shielded feature, the 7th embodiment's phase regulator and conforming in first embodiment.Therefore, the fixed structure 10 with molded stuffing box gland 50 for example can replace fixed structure 10 and the stuffing box gland 50 in first embodiment.
Figure 14 shown the 8th embodiment phase regulator center type fixed structure 10 and be fixed on the stuffing box gland 50 in the periphery of fixed structure 10.Stuffing box gland 50 is made dividually with fixed structure 10, and is extruded or pastes towards the periphery of fixed structure 10.Extruding connection is connected 71 and correspondingly can realizes individually or in combination with stickup.Except illustrated feature, the layout being formed with stuffing box gland 50 by fixed structure 10 conforming in the 7th embodiment.
Figure 15 illustrates the 9th embodiment's center type fixed structure 10 and stuffing box gland 50 fixed thereon.Fixed structure 10 consists of with first embodiment the valve chest 10 of control valve again with conforming to.Stuffing box gland 50 is connected with fixed structure 10 form fit and frictional fit ground.Stuffing box gland 50 has joint element 72 in the region of its sealing contact pin 51,52 and 53, and it engages complementary elements 73 in engaging with fixed structure 10.Should engage, joint element 72 is projections, and engage complementary elements 53, is correspondingly groove.In this embodiment, engaging complementary elements 73 is the passages in the form of slot around rotation axis R.Joint element 72 has formed in the form of a ring the projection around rotation axis R.In this embodiment, sealing contact pin 51,52 and 53 assumes diamond in shape as in the 3rd embodiment (Fig. 6) on profile, wherein, when fixed structure 10 is incorporated in the central passage of rotor 7 or when especially phase regulator is contained in camshaft place, rhombus neck area radially respect to one another externally abuts in the inner peripheral surface place of rotor 7 hermetically, and the rhombus neck area of inner radial forms joint element 72, that is to say 51,52 and 53 1 joint elements of each sealing contact pin.The same sealing forming towards fixed structure 10 in being engaged with each other of joint element 72 and joint complementary elements 53.Stuffing box gland 50 can upwards be fixed extraly in week, for example, by stickup, connect or extra form fit connects, so that prevent that reliably stuffing box gland 50 is with respect to the torsion of fixed structure 10.
Except illustrated feature, the device being formed with stuffing box gland 50 by fixed structure 10 and the 7th conforming in the 8th embodiment.
Figure 16 has shown center type fixed structure 10 and the rotor 7 of the tenth embodiment's phase regulator.In annular gap between rotor 7 and fixed structure 10, locate and be fixed with stuffing box gland 50.Stuffing box gland 50 is axially arranged between the end face 10a of fixed structure 10 and the end face 7c of rotor 7.End face 10a is the inside annulus region of the fixedly convex shoulder of fixed structure 10.Axially relative end face 7c is the convex shoulder face of rotor 7, and the diameter of the central passage of rotor 7 reduces thereon.Two outside sealing contact pin 51 and 53 axially abut in end face 10a and the 7c place correspondingly facing, and have sealed interface A and B for external environment condition.Middle sealing contact pin 52 has sealed interface A and B relative to one another.Sealing contact pin 51,52 and 53 is rectangular haply, is not tapered.Correspondingly advantageously, in stuffing box gland 50 is embodied as the situation of injection moulding cover, uses and compare the elastomeric material that other embodiment is softer.Yet in a kind of modification, sealing contact pin 51 to 53 can be tapered towards rotor 7 or fixed structure 10, yet wherein need to consider, sealing contact pin 51 and 53 abuts in end face 10a and 7c place hermetically, so stuffing box gland 50 ground as before is axially arranged between end face 10a and 7c, and to external sealed.Except illustrated feature, phase regulator and conforming in first embodiment.
In Figure 17, for the 11 embodiment, the diameter of the central passage of rotor 7 reduces in a plurality of steps, the corresponding step of each sealing contact pin of stuffing box gland 50.Stuffing box gland 50 comprises again the first sealing contact pin 51, the second sealing contact pin 52 and the 3rd sealing contact pin 53, and the connection contact pin 56 and 57 that connects these sealing contact pin.Stuffing box gland 50 is integrally axially arranged between the end face 10a of fixed structure 10 and the end face 7c of rotor 7 as in previous embodiment, and on the axial length of stuffing box gland 50 by with convex shoulder face 10a contact with outwards the contacting for external environment condition and sealing ring gap 16 of convex shoulder face 7c.Be different from previous embodiment, sealing contact pin 51 its with end face 10a back to a side place abut in the end face 7d place of rotor 7, and seal the 7e place, other end that contact pin 52 abuts in rotor 7.Except mentioned feature, this phase regulator and conforming in previous embodiment (Figure 16).
Figure 18 has shown the 12 embodiment's phase regulator, and itself and first embodiment only distinguishes on stuffing box gland 50.In at present illustrated embodiment, the sealing effect of corresponding stuffing box gland 50, at least substantially based on elastic properties of materials, that is to say the elastic characteristic of the elastomeric material based on used.In the 12 embodiment, sealing effect at least haply by corresponding shaping and therefore the shape elasticity by stuffing box gland 50 obtain.Stuffing box gland 50 comprises sealing contact pin 51,52 and 53, and will seal contact pin connection contact pin 56 connected to one another and 57.Stuffing box gland 50 especially can for example, be formed by metallic material (spring steel). Sealing contact pin 51,52 and 53 correspondingly has fluctuating on profile.During sealing contact pin 51,52 and each rotation axis R that rotates in 53 are in and contact with the sealing of the outer circumferential face of fixed structure 10 and contact with the sealing of inner peripheral surface with rotor 7 so that in annular gap 16 relative to one another and be directed to external rings condition sealed interface A and B.Except illustrated difference, phase regulator and conforming in first embodiment.
The following discloses the stuffing box gland 50 reducing to some extent, be not required in this application protection in envelop of function.
Figure 19 shown with the fixed structure 10 that is fixed on the stuffing box gland 50 at its place, and it is from the different of stuffing box gland 50 in first embodiment, the sealing contact pin 51 in first embodiment be connected contact pin 56 and be omitted.Except this difference, stuffing box gland 50 and fixed structure 10 and conforming in first embodiment.Stuffing box gland 50 can easily replace the first embodiment's stuffing box gland, and wherein, defective sealing contact pin 51 is replaced by other independent sealing.
Figure 20 has shown the fixed structure 10 with first embodiment of stuffing box gland 50, and it only has two sealing contact pin 52 and 53 and be connected the connection contact pin 57 that these seal contact pin.In this embodiment, joint element 59 forms in the region that connects contact pin 57.
Figure 21 has shown such embodiment, and wherein stuffing box gland 50 only has two sealing contact pin, seals contact pin 52 and seal contact pin 53, and by these sealing contact pin 51 and 52 connection contact pin 57 connected to one another.In the link of rotor and camshaft, sealing contact pin 52 and 53 is born the embodiment of relative Fig. 1 to 18 for sealing contact pin 52 and the 53 illustrated functions at this place.According to the embodiment of Figure 12 and 13, stuffing box gland 50 is correspondingly arranged in the periphery of fixed structure 10.Fixed structure 10 carries out overmolding to form the elastomeric material of stuffing box gland 50.Fixed structure 10 has coarse circumference 70 in the axial component of overmolding, is preferably the surface that is burr shape, so that improve and being fixedly connected with of stuffing box gland 50.Except illustrated difference, fixed structure 10 and stuffing box gland 50 and Figure 12 and conforming in 13 illustrated embodiments, thus can be with reference to the explanation at this place, and in addition can be with reference to first embodiment.
Figure 22 illustrates with the fixed structure 10 that is fixedly placed on the seal arrangement 50 at its place, seal arrangement 50 is not as stuffing box gland but by two independent sealing contact pin 52 and 53 formations.Fixed structure 10 is correspondingly at interface A and B and interface B and T bbetween axial component in correspondingly to form the elastomeric material of of sealing in contact pin 52 and 53, carry out overmolding.Fixed structure 10 radial ring under sealing contact pin 52 and 53 correspondingly has the outstanding rib of long and narrow radially outward around ground, its with correspondingly at circumferential surface place and correspondingly the elastomeric material at two axial sides places carry out overmolding.In a kind of improvement project, with sealing contact pin 52 and 53 common same injection moulding process in, can conform to and form these two contact pin connection contact pin connected to one another with another embodiment's the contact pin 57 that is connected, and independent sealing contact pin 52 and 53 be modified into stuffing box gland thus.The flat structure around rib at fixed structure 10 places is counted as another example that form fit connects, by it, can for example replace at least one joint element 59 of first embodiment and the joint of at least one joint complementary elements 19, or the coarse circumferential surface in Figure 12,13 and 21 illustrated embodiments.
Figure 23 to be to wait axonometric drawing to show the fixed structure 10 with same modified stuffing box gland 50, and sealing cover 50 only comprises sealing contact pin 52 and 53 and these are sealed to contact pin are connected to one another is connected contact pin 57 as in the embodiment shown at Figure 19 to 21.Be different from other embodiment, sealing cover 50 can axially not be brought to or extract towards fixed structure 10, but is installed by side.For this object, stuffing box gland 50 is axially divided, and this division is marked by 50a, thereby makes it can overcome its elastic recoil power by crooked fully, and can be radially placed in the periphery of fixed structure by a side in crooked state.Stuffing box gland 50 can advantageously have at least one joint element, and for example at least one joint element 59(is as in first embodiment), it is forced in the hole of formation interface B of fixed structure 10 in the installation of stuffing box gland 50.As in the embodiment shown in Figure 21 and 22, fixed structure 10 conforms to first embodiment and consists of the valve chest 10 that is arranged in middle control valve.Each in the stuffing box gland 50 being connected with fixed structure 10 in assembly process can have division 50a according to the embodiment shown in Figure 23, so that can be placed around fixed structure 23 by side.Yet pay the utmost attention to unallocated stuffing box gland 50.
Figure 24 has shown the phase regulator with the relative modified stator-rotor arrangement of first embodiment.With integrated filtrating equipment 30 and the integrated center type fixed structure 10 of lockable mechanism 40 and conforming in first embodiment.In annular gap 16, be furnished with equally first embodiment's stuffing box gland 50.Be different from the first embodiment, stator 3 is only two-piece type.Middleware 5 and housing 6 single-piece ground form.
Locking mechanical device is different from first embodiment equally.Locking mechanical device comprises stop pin 83, and it is contained in the ladder boring of rotor 7, and directed in the axial direction.Pin 83 can overcome the power of locking spring 85 and move in release position from the locking position occupying among Figure 24 in the situation of the pressure-loaded of pressure chamber 84 so that can be in the direction towards delaying position movable rotor 7.For this object, pin and the nearest chamber K that delays 2fluid is communicated with.Remove by delaying chamber K 2in the loading of outside, comprise the locking mechanical device of stop pin 83 and conforming in DE102011004539.
Be different from the locking mechanical device shown in Figure 24, the locking mechanical device in first embodiment (Fig. 1-) has specialization.Therefore, stop pin 80 is contained in simple, the non-stepped boring in rotor 7, and is axially guided.This boring forms blind hole in first embodiment's rotor 7, makes to lock spring 82 and is closely supported on rotor 7 places, rather than as in the embodiment of Figure 24, be supported on supporting member 86 places that are used.Because locking spring 82 is adjacent to the support of rotor place (being adjacent to the rear wall place consisting of rotor 7 of blind hole in first embodiment), cancelled separately for the manufacture of the supporting member with assembling, for example supporting member 86.This type of supporting member is made of plastics conventionally, increased thus following danger, be that supporting member 86 moves axially in the meeting in service of phase regulator, and axial friction pressure may to be applied to thus to stator 3(be stator housing 4 in Figure 24) the end face of relatively putting on.In the situation of first embodiment's locking mechanical device, this prevents by the direct support at rotor 7 places.Another difference is, in first embodiment, pressure chamber 81 is directly adjacent to stator 3(herein for stator housing 4) locking aperture place, and the end face of the pressure that defines pressure chamber 81 and be therefore loaded to exist therein of stop pin 80 directly with axial relative the putting of stator faces (being herein stator shroud 4).In addition because tolerance has been guaranteed pressure chamber 81 and the locking aperture of stator 3 and has been in during fluid is communicated with, stop pin 80 enters into locking aperture in lock state, thereby has made since being immersed in end face in locking aperture and being loaded of stop pin 80 pressure fluid from pressure chamber 81.Result, obtained a kind of locking mechanical device, it is locked and release equally reliably as in the embodiment shown in Figure 24, yet it is simplified in design on the other hand, for illustrated friction problem, be enhanced, and same because these two are former thereby more durable.Pressure chamber 81 can with adjacent control chamber K 2be connected, or be directly connected with B interface.
Also supplementary as follows with respect to the embodiment shown in Figure 24, phase regulator has bracket 75, and it extend in the fixedly convex shoulder and the axial clearance between rotor 7 at fixed structure 10 in the end with flange in the face of camshaft 1.This flange of bracket 84 works with the form of packing ring.It stops frictional force in assembling, and unloads thus the fixed equipment of protecting rotor 7 or camshaft 1 with it in the assembling of phase regulator.In addition, bracket 75 to rear enclosed be furnished with therein the space of torsion spring 17.Bracket 75 has served as the protective equipment for situation about fractureing for torsion spring 17 equally with which.Finally, bracket 75 equally also can be used as rotary angle transmitter, its angle position and and then rotor 7 with respect to the angle position of stator 3, can detect by means of sensor.
Reference numerals list
1 camshaft
2 machine cases
3 stators
4 actuation gears
5 impellers
5a stator hoof piece
6 cover plates
7 rotors
7a connecting passage
7b connecting passage
7c end face
7d end face
7e end face
8 rotor blades
9-
10 fixed structures, valve chest
10a end face
11 end face envelope walls
12 attachment portions
14 valve springs
15 control units
16 annular gaps
17 torsion springs
18 housing parts that expand
19 engage complementary elements
20 valve pistons
21 piston entrances
22 cavitys
23 piston outlets
24 compensation supply departments
25 coupling mechanisms
26 grooves
27 grooves
The piston portion of 28 expansion sections, expansion
29 fluids connect
30 fluids connect
31 filter cap structures, outer cover
32 filter cap structures, bottom
33-
34 filter entrance
35-
40 lockable mechanisms
41 locking bodies
42 locking springs
50 stuffing box glands
50a divides
51 sealing contact pin
52 sealing contact pin
53 sealing contact pin
54 sealing contact pin
55 sealing contact pin
56 connect contact pin
57 connect contact pin
58-
59 joint elements
60 passages
70 coarse circumference
71 bonding connections
72 projections
73 grooves
74
75 brackets
80 stop pins
81 pressure chambers
82 locking springs
83 stop pins
84 pressure chambers
85 locking springs
86 supporting members
A control interface
B control interface
Turning to of D stator
K 1shift to an earlier date chamber
K 2postpone chamber
P pressure interface
R rotation axis, central axis
T astorage tank interface
T bstorage tank interface.

Claims (15)

1. for regulating the camshaft of internal-combustion engine with respect to the phase regulator of the angle position of bent axle, described phase regulator comprises:
The stator (3) that a) can be driven by described crankshaft rotating formula,
B) can be by described stator (3) rotor (7) around the rotary driving of rotation axis (R), itself and described stator (3) have formed the first control chamber (K that can be loaded pressure fluid 1) and the second control chamber (K 2), so that can with respect to described stator (3), regulate described rotor (7) around described rotation axis (R),
C) fixed structure (10; 100), it axially extends through described rotor (7) and is connected with the antitorque formula of described camshaft (1) for described rotor (7), and also formed alternatively annular gap (16) together with described camshaft (1) in described rotor (7) and the state that is being connected
D) the first sealing contact pin (51), the second sealing contact pin (52) and the 3rd sealing contact pin (53), they correspondingly extend around described rotation axis (R), and are that elasticity is soft,
E) between described the first sealing contact pin (51) and described the second sealing contact pin (52), be axially passed into the first fluid interface (A in described annular gap (16), P, 7a), described pressure flow physical efficiency is supplied to described the first control chamber (K1) by described first fluid interface
F) between described the second sealing contact pin (52) and described the 3rd sealing contact pin (53), be axially passed into second fluid interface (B, the T in described annular gap (16) b, 7b), described pressure flow physical efficiency is passed through described second fluid interface from described the second control chamber (K 2) middle discharge, and
G) be fixed on described rotor (7) or described fixed structure (10; 100) stuffing box gland of locating (50), its single-piece ground forms described sealing contact pin (51,52,53) and between described sealing contact pin (51,52,53) axially these are sealed to contact pin connection contact pin (56 connected to one another, 58), wherein, in the region of at least one in described connection contact pin (56,57), form described fluid interface (A, P, 7a, B, T b, in 7b) one.
2. phase regulator according to claim 1, it is characterized in that, comprise the control valve for the control of described pressure fluid, described control valve has the valve chest (10) of the described fixed structure of formation (10) axially extending in described rotor (7), and can be in described valve chest (10) axially movable valve piston (20), wherein, described valve chest (10) have for described pressure fluid to the pressure interface (P) of the supply of described valve chest (10), with described the first control chamber (K 1) be connected the first control interface (A), with described the second control chamber (K 2) the second control interface (B) of being connected, and the storage tank interface (T discharging from described valve chest (10) for described pressure fluid a, T b), and in the interface of described valve chest (10) one, be preferably described the first control interface (A) and form described first fluid interface (A, P, 7a) or in described annular gap (16) be connected with this annular gap, and another in the interface of described valve chest (10), be preferably described the second control interface (B) and form described second fluid interface (B, T b, 7b) or in described annular gap (16) be connected with this annular gap.
3. phase regulator according to claim 1 and 2, it is characterized in that, described stuffing box gland (50) has joint element (59), described fixed structure (10) or described rotor (7) have joint complementary elements (19), described joint element (59) with the described complementary elements (19) that engages in form fit or frictional fit, be preferably in the joint of form fit and frictional fit, described stuffing box gland (50) axially or is circumferentially fixed on to described fixed structure (10) for it or described rotor (7) is located, wherein, joint element (59) is groove with one that engages in complementary elements (19), and another is the projection extending in described groove.
4. according to the phase regulator described in any one in claim 1 to 3, it is characterized in that described first fluid interface (A, P, 7a) or described second fluid interface (B, T b, 7b) form described joint complementary elements, and the pressure flow physical efficiency described joint element (59) of flowing through.
5. according to the phase regulator described in any one in claim 1 to 4, it is characterized in that, described sealing contact pin (51,52,53) at least one in extend in the groove around described rotation axis (R) (73) of described fixed structure (10) or described rotor (7), or described sealing contact pin (51,52,53) at least one in has the groove around described rotation axis (R), and the projection around described rotation axis (R) of described fixed structure (10) or described rotor (7) extend in described groove.
6. according to the phase regulator described in any one in claim 1 to 5, it is characterized in that, described sealing contact pin (51,52,53), preferably also having described connection contact pin (56,57) is the injection moulding contact pin obtaining by the periphery (70) of described fixed structure (10) or the overmolding by plastics in the interior week of described rotor (7).
7. according to the phase regulator described in any one in claim 1 to 6, it is characterized in that, described stuffing box gland (50) utilizes lateral extrusion and is fixed on the periphery (71) of described fixed structure (10) or on the interior week of described rotor (7).
8. according to the phase regulator described in any one in claim 1 to 7, it is characterized in that described fixed structure (10; 100) in the part of stretching out, there is the convex shoulder around described rotation axis (R) from described annular gap (16); described convex shoulder can axially clamp to realize rotor (7) and be connected with the antitorque formula of camshaft (1) in the direction towards described rotor (7); and described sealing contact pin (51; 52,53) another sealing contact pin of in one or described stuffing box gland (50) radially extend at described rotor (7) and described fixed structure (10; 100) in the gap around described rotation axis (R) between convex shoulder, described convex shoulder is axially exerted pressure facing to described rotor (7) via described sealing contact pin (51) in the coupled condition of described rotor (7) and camshaft (1), and described sealing contact pin (51) has sealed described annular gap (16).
9. according to the phase regulator described in any one in claim 1 to 8, it is characterized in that, at least one in described sealing contact pin (51,52,53) is towards described fixed structure (10; 100) in the direction of the inner peripheral surface of outer circumferential face or described rotor (7), being preferably taper is tapered.
10. according to the phase regulator described in any one in claim 1 to 9, it is characterized in that, at least described sealing contact pin (51,52,53) be by the common injection moulding contact pin being formed by elastomeric material forming of Shooting Technique, wherein, described stuffing box gland (50) comprises the supporting sleeve (300) consisting of metal or plastics alternatively, in described supporting sleeve (300) and described sealing contact pin one or more, preferably with described sealing contact pin in each carry out overmolding.
11. according to the phase regulator described in any one in claim 1 to 10, it is characterized in that, described stuffing box gland (50) comprises the filtrating equipment (300) for clean described pressure fluid as integrated form constituent element.
12. according to the phase regulator described in any one in claim 1 to 11, it is characterized in that, described filtrating equipment (300) forms at least one in described connection contact pin, or the soft material of elasticity of described stuffing box gland (50) is configured for the supporting structure of the filtrating equipment (300) that is non-releasably fixedly connected with described supporting structure.
13. according to the phase regulator described in any one in claim 1 to 12, it is characterized in that, described sealing contact pin (51,52,53), preferably also has described connection contact pin (56,57) be the injection moulding contact pin being formed with injection moulding by plastics, described filtrating equipment (300) by the overmolding of described plastics with described injection moulding contact pin at least one be fixedly connected.
14. according to the phase regulator described in any one in claim 1 to 13, it is characterized in that, described stuffing box gland (50) has that at least one is axially extended, at the circumferential surface place of described stuffing box gland (50), preferably open wide for guiding the passage (60) of described pressure fluid.
15. according to the phase regulator described in 1 to 14 any one in claim, it is characterized in that, described rotor (7) has diametrically than described fixed structure (10; 100) larger thermal expansion, the radial width of described annular gap (16) is increased in the situation of temperature rising, and described stuffing box gland (50) compensate the variation causing therefrom of the radial width of described annular gap (16) at least in part by resiliently deformable.
CN201310314234.9A 2012-07-24 2013-07-24 Camshaft phase adjuster with sealing shroud Expired - Fee Related CN103573319B (en)

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DE102012213002.0A DE102012213002A1 (en) 2012-07-24 2012-07-24 Camshaft phaser with sealing sleeve
DE102012213002.0 2012-07-24

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CN103573319B CN103573319B (en) 2016-09-14

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HU (1) HUE029773T2 (en)

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Also Published As

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EP2690261A2 (en) 2014-01-29
EP2690261B1 (en) 2016-09-07
CN103573319B (en) 2016-09-14
DE102012213002A1 (en) 2014-01-30
EP2690261A3 (en) 2014-03-12
HUE029773T2 (en) 2017-04-28

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