EP3084153A1 - Camshaft adjusting device, combustion engine and assembly method - Google Patents

Camshaft adjusting device, combustion engine and assembly method

Info

Publication number
EP3084153A1
EP3084153A1 EP14803070.3A EP14803070A EP3084153A1 EP 3084153 A1 EP3084153 A1 EP 3084153A1 EP 14803070 A EP14803070 A EP 14803070A EP 3084153 A1 EP3084153 A1 EP 3084153A1
Authority
EP
European Patent Office
Prior art keywords
actuator
spring
adjusting device
assembly
movement
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
EP14803070.3A
Other languages
German (de)
French (fr)
Other versions
EP3084153B1 (en
Inventor
Stefan Bender
Harald Eckhardt
Peter Vincon
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.)
ETO Magnetic GmbH
Original Assignee
ETO Magnetic GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ETO Magnetic GmbH filed Critical ETO Magnetic GmbH
Publication of EP3084153A1 publication Critical patent/EP3084153A1/en
Application granted granted Critical
Publication of EP3084153B1 publication Critical patent/EP3084153B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-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
    • F01L1/344Valve-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
    • F01L1/3442Valve-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-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
    • F01L1/344Valve-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46Component parts, details, or accessories, not provided for in preceding subgroups
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-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
    • F01L1/344Valve-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
    • F01L1/3442Valve-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
    • F01L2001/34423Details relating to the hydraulic feeding circuit
    • F01L2001/34426Oil control valves
    • F01L2001/3443Solenoid driven oil control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-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
    • F01L1/344Valve-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
    • F01L1/3442Valve-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
    • F01L2001/34423Details relating to the hydraulic feeding circuit
    • F01L2001/34426Oil control valves
    • F01L2001/34433Location oil control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-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
    • F01L1/344Valve-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
    • F01L1/3442Valve-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
    • F01L2001/3445Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34483Phaser return springs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L2013/10Auxiliary actuators for variable valve timing
    • F01L2013/101Electromagnets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00Details on specific features characterising valve gear arrangements
    • F01L2820/03Auxiliary actuators
    • F01L2820/031Electromagnets

Definitions

  • the invention relates to a camshaft adjusting device according to the preamble of claim 1 comprising an electromagnetic Aktor ator with an adjusting axis along an axially adjustable armature for actuating a hydraulic valve for adjusting the camshaft.
  • the camshaft adjusting device comprises fastening means for fixing the actuator to a motor element, in particular a housing element, for example a chain box or to the engine block.
  • the invention relates to an internal combustion engine, in particular a motor vehicle internal combustion engine with such a Nockenwellenverstell- device and an assembly method for a Nockenwellenverstellvor- direction according to the preamble of claim 13.
  • Nockenwellenver- stellvoruzeen for internal combustion engines are well known and are used to change the relative angular position of the camshaft and thus the cam relative to the crankshaft of an internal combustion engine.
  • the camshaft adjustment takes place hydraulically, the control of the pressurized fluid being effected via at least one hydraulic valve which can be actuated by means of an actuator comprising an armature which can be adjusted axially along an adjustment axis.
  • the fastening means comprise a plurality of circumferentially spaced resilient elements for forming a plug-in rotary closure, so as to be able to simplify the actuator to be mounted on a motor element by a twisting movement.
  • a camshaft adjusting device in which the actuator is also set in a plug-and-turn motion on a motor element.
  • a disadvantage of the known solution is that sufficient space must be kept free in the circumferential direction for realizing the twisting movement for transferring the actuator into its mounting position, which can not be used to arrange further functional parts.
  • a further disadvantage is that the actuator of the known Nockenwellenverstellvorrich- device can be unintentionally adjusted by applying a sufficiently large disassembly force in the circumferential direction from its mounting position out.
  • a camshaft adjusting device which can be mounted and dismantled only in a combined plug-in rotary movement, wherein in a mounting position, a rotation of the actuator is possible.
  • the actuator is secured by means of a spring clip.
  • the object of the invention is therefore to provide a camshaft adjusting device with an actuator mountable with a simple, preferably less powerful, assembly movement, which is better secured against unintentional disassembly. Furthermore, the object is to provide an internal combustion engine with such a camshaft adjusting device as well as a simplified assembly method for a camshaft adjusting device, which guarantees optimum securing of the actuator on the motor element. This object is achieved with regard to the camshaft adjusting device having the features of claim 1, with regard to the internal combustion engine having the features of claim 12 and with regard to the mounting method having the features of claim 13. Advantageous developments of the invention are specified in the subclaims.
  • the invention is based on the idea of designing the fastening means of the camshaft adjusting device in such a way that the actuator can be transferred into its mounting position on the motor element in a pure translational movement, in particular a pure plugging movement, preferably along the longitudinal extent of the adjustment axis of the axially adjustable armature of the actuator the actuator is secured against rotation in the circumferential direction relative to the motor element, wherein, conversely, the disassembly movement is also purely translational in a direction opposite to the mounting direction executable.
  • the spring means with which the actuator can be braced against the motor element, in a securing position in which they develop the aforesaid tensioning action disassemble the installation path by 180 °, preferably along the adjustment axis of the armature, ie block along the longitudinal extension of the adjustment axis of the armature, for example by engaging in the actuator, this overlap or enforce.
  • the spring means act on the actuator in contrast to embodiments of the prior art in the (translational) mounting direction with a spring force.
  • the spring means thus comes in its safety position a double function - they bring a spring force in the mounting direction on the actuator in the direction of engine element and also lock a translational disassembly, while twisting the actuator in its mounting position in the circumferential direction by the interlocking means, in which the actuator can only be inserted translationally is reliably prevented.
  • the assembly method according to the invention adopts the above constructive design in that the actuator in a pure translational assembly movement (plug movement), preferably in the direction of the adjustment axis of the armature, particularly preferably in the direction of the longitudinal extent (adjustment) of an actuatable by means of the armature valve tappet of the valve of the camshaft adjustment its mounting position is transferred to the motor element, in which the actuator is secured against rotation in the circumferential direction by means of the positive locking means, wherein the spring means are transferred after transferring the actuator in its mounting position in a safety position, in particular by adjusting the spring means in a vertically to the mounting direction extending plane, wherein the spring means in this safety position on the one hand apply an axial clamping force on the actuator in the direction of the motor element and beyond an opposing assembly movement block the disassembly movement or a disassembly path opposing a translatory assembly path, in particular by the spring means passing through, overlapping or at least intervening in the actuator, in any case interacting with
  • the spring means are preferably the only means which prevent the translational, in particular non-destructive, disassembly, ie according to a preferred embodiment, there are no further elements in the disassembly path.
  • the embodiment according to the invention of the camshaft adjusting device and the realization of the assembly method and dismantling method according to the invention ensure that a ring seal which preferably seals in the mounted state in the radial and / or axial direction seals the actuator relative to the motor element during assembly for lack of rotational movement is not subjected to force in the circumferential direction, whereby the ring seal is optimally protected.
  • This is due to the inventive separation of the assembly steps of the axial Aufsteckens of the actuator and thus overpressure of the radially sealing O-ring and the angularly oriented therefor mounting force for the spring clips.
  • the assembly force and the disassembly force especially for manual installation purposes compared to the prior art significantly reduced. It is also possible to use conventional O-ring seals as a ring seal - special geometries for minimizing contact pressure can be dispensed with.
  • the O-ring seal is particularly preferably moved axially along an insertion bevel, which ensures that the ring seal, which is preferably designed as an O-ring seal, is acted upon by a radial force component due to the axial movement and the annular seal thus in the radial direction is compressed.
  • the O-ring seal during movement along the insertion be subjected to force only in the axial direction and in the radial direction, but not in the circumferential direction.
  • the actuator in particular by means of the positive locking means, is axially guided in its translational assembly movement, in particular during an end portion of this assembly movement, that is secured against rotation in the circumferential direction.
  • the positive locking means of the actuator and the motor element already engage axially on the motor element before reaching the mounting position of the actuator.
  • the positive locking means there are different possibilities. It is essential that they prevent one, preferably any, rotational movement of the actuator in its mounting position by an axial meshing, in particular along the Ankerverstellachse.
  • two inner peripheral portions of a receiving opening may be provided in the engine element.
  • the above arrangement can also be realized vice versa, namely in which at least one of the motor element and parallel to the adjustment axis of the armature in the direction of the actuator extending positive locking element in the mounting position (and preferably already a piece previously) between two in a circumferential direction around the Adjusting axis spaced and parallel to the adjustment axis extending counter elements or counter element sections, for example, inner peripheral portions of an opening tion is included in the actuator.
  • the counter-elements or counter-element sections are provided on the actuator or on the motor element, they limit a translationally accessible mounting opening, into which the opposite positive-locking element can be introduced by a translatory adjusting movement of the actuator to the motor element and thereby transferred to the mounting position.
  • the positive-locking element and / or the counter-elements of the actuator preferably extend / extend in the radial direction to the outside.
  • the spring means in their securing position pass through the interlocking means, in particular the interlocking element and / or the counter elements or counter element sections or at least into a receiving opening of the interlocking element or at least one counter element or counterpart element section intervention.
  • the positive locking element can be fixed in its securing position. It has proved to be particularly advantageous when the spring element is received between two opposing counter-elements of the motor element in the circumferential direction and thereby engages over or passes through the positive-locking element of the actuator.
  • the positive-locking element is penetrated by the spring means, in particular at an angle to a disassembly direction and is supported axially on the counter-elements.
  • the spring means are translatable in a translational or rotational fixing movement in the securing position in which they obstruct the disassembly path and load the actuator spring force, it being particularly preferred if the translational or rotatory fixing movement in an angular plane, very particularly preferably perpendicular to the adjustment axis of the armature and thus angled or perpendicular to the mounting or dismounting direction extending fixing plane is executable.
  • the specific design of the spring means there are different possibilities.
  • the spring means comprise a, in particular metallic, spring strip, which is designed to be resilient perpendicular to its longitudinal or circumferential extension about the adjustment axis of the actuator, in particular by providing at least one elastically deformable bend or curvature which is perpendicular extends to the longitudinal extension of the spring strip.
  • a spring strip can also be used, for example, a spring clip having two, in particular strip-shaped sections, wherein preferably one of the sections is flat and the other has a curvature.
  • a clip-type design facilitates pre-assembly of the spring means in a preassembly position on the actuator.
  • the spring means for example as at least one spring strip or at least one spring clip
  • the spring means in particular in a recess, of the actuator are preassembled and can be transferred in the mounting position of the Aktua- sector from a pre-assembly position on the actuator in the securing position.
  • the spring means are resilient in the preassembly position on the actuator, in particular held by latching or exclusively clamping.
  • the spring preferably designed as a stamped or bent part or parts, to realize a Vormontieriana there are different possibilities.
  • One possibility is in the aforementioned embodiment of the spring means as a spring clip.
  • two, for example, parallel spring sections comprise, namely a main spring portion, for the bracing the actuator is responsible against the motor element in the securing position and a secondary spring portion for, for example, clamping and / or resilient, holding the spring means in a preassembly position on the actuator, wherein preferably the secondary spring portion is formed and / or arranged that this in the securing position the spring means does not clamp the actuator or with a smaller spring force against the motor element than the main spring section, so that it is avoided that the transfer of the spring means in the securing position by an otherwise provided addition of the spring forces of the Federa
  • the spring bends of the main spring section and secondary spring section are in the direction of To offset the longitudinal extent of the main spring portion and secondary spring portion and / or narrower the secondary spring portion and / or form of a thinner material than the main spring portion.
  • the spring means In order to ensure an exact position of the spring means in the securing position or to define the securing position precisely, it is preferable to provide the spring means with a stop which is designed so that it limits the fixing movement in the securing position.
  • the stop can be realized, for example, as an angled end of a spring strip-shaped spring means.
  • the spring means with a, preferably at an angle to the longitudinal extent of the spring means, in particular a spring strip arranged grip portion to grip the spring means easier and thus easier to assemble and disassemble. It is also conceivable that the aforesaid grip section simultaneously serves as a stop. Additionally or alternatively to the realization of a stop on the spring means, it is possible to form a mounting movement, ie fixing movement of the spring means limiting stop on the motor element, for example as an axial end of a spring means guide. Such an embodiment is particularly advantageous when it is dispensed with a stop on the spring means and / or on the spring means a handle portion for facilitating gripping the same is provided.
  • Camshaft adjusting device in different mounting or fixing stages, wherein the spring means in their securing position pass through counter-elements of the motor element and engage in opposite Gegenelemen- te,
  • FIG. 5 shows a further exemplary embodiment of a camshaft adjusting device in different assembly states
  • FIG. 7 shows an exemplary embodiment of a camshaft adjusting device with rotatably determinable spring means, an exemplary embodiment of a camshaft adjusting device with two spring strips formed integrally via a connecting piece, wherein the connection is designed arcuate
  • 9 shows a further alternative exemplary embodiment of a camshaft adjusting device with rectilinearly connected spring strips
  • FIG. 10 shows a further alternative exemplary embodiment of a camshaft adjusting device with a spring strip formed in one piece and rotatable into a securing position
  • FIG. 1 to 13 show a further exemplary embodiment of a camshaft adjusting device with pre-mountable spring means in different mounting positions, the spring means each having a main and a secondary spring section,
  • FIG. 17 shows a further exemplary embodiment of a camshaft adjusting device in which the spring means can be latched on the actuator in a preassembly position
  • FIG. 18 shows a schematic representation of an installation situation of a
  • Actuator of a camshaft adjusting device wherein the actuator is supported in the radial direction via a designed as a conventional O-ring seal ring seal on the motor element, specifically on the inner circumference of a receiving opening (recess) for the actuator in the motor element.
  • a first embodiment of a camshaft adjusting device 1 is shown in a fragmentary view.
  • a motor element 2 for example, a housing of a motor attachment or directly a motor housing and an actuator 3, which in its interior in a known manner has a bestrombare winding in its interior, which can be powered via a connector socket 4.
  • an armature (not shown) provided inside the actuator 3 is axially adjustable along an adjustment axis 5.
  • the adjustment axis 5 extends in the embodiment shown perpendicular to the surface extension of an upper side 6 of the actuator 3, as well as perpendicular to a longitudinal extension of the connection socket. 5
  • the armature frontally associated with a ball, with which the armature can be supported on the rotating hydraulic valve.
  • the actuator 3 can be transferred from the position shown in FIG. 1 into the assembly position 7 shown in FIG. 2 in a pure translatory plugging movement along the adjustment axis 5 of the actuator 3 be, in which the actuator 3 is secured against rotation in the circumferential direction on the motor element 2 by means of positive locking means 8.
  • the positive locking means comprise two opposing pairs of circumferentially about the Verdes- Axis 5 spaced counter-elements 9, 10 on the motor element and two diametrically opposed form-locking elements 1 1, each positive-locking element 1 1 is added in the mounting position shown in Fig. 2 between two counter-elements 9, 10 of the motor element 2 and thus secured against rotation.
  • the spring means 12 pass through the counter-elements 9 and protrude into the counter-elements 10 and thereby (alternatively, for example, enforce) engage the interlocking elements 1 1. At these, the spring means 12 are supported in the securing position in the axial direction.
  • the strip-shaped spring means 12 each comprise a stop 14 for limiting the fixing movement of the spring means 12.
  • the aforementioned fixing movement is realized in a direction perpendicular to the adjustment axis 5 of the armature extending level, in the concrete embodiment in the context of a translatory plug movement .
  • the designated by the reference numeral 14 portion of the spring means 12, which is arranged at an angle to the longitudinal extent of the strip may additionally or alternatively to the stop function have a handle function, ie serve as a grip surface or handle portion for easier assembly and disassembly.
  • the stop is formed on the motor element in order to limit the assembly movement defined.
  • the actuator 3 is also mounted in a pure plugging movement, wherein in the embodiment of FIGS. 3 and 4 form-fitting elements 1 1 are provided on the motor element 2 and are encompassed in the mounting position of counter-element sections 15, 16th of the actuator 3, so as to prevent in the mounting position, a rotation of the actuator 3 about the adjustment axis 5 of the armature relative to the motor element 2 safely.
  • the likewise exemplarily strip-shaped spring means 12 can be converted into a securing position shown on the left in FIG. 4 by a purely translational movement in a plane extending perpendicular to the adjustment axis 5, wherein the spring means 12, the positive-locking elements 1 1 of the actuator. 3 enforce and axially supported on the counter-elements 15, 16.
  • FIGS. 5 and 6 show a sectional view of a mounting situation. From the motor element 2 protrudes a positive locking element 1 1 parallel to the adjustment axis 5 in the direction of the actuator 3 and is surrounded by mating element sections 15, 16 of the actuator 3.
  • the interlocking element 1 1 has a perpendicular to the longitudinal extent of Adjusting axis 5 extending aperture 17 which is penetrated in the shown in Fig. 6 securing position of the spring means 12 of these. It can be seen that the spring means 12 act in the mounting position, the actuator 3 axially relative to the adjustment axis 5 to the motor element 2 spring force.
  • the spring means 12 are also configured strip-shaped, but these are forced into a rotational movement when they are transferred to the securing position, as shown in the drawing plane right.
  • the spring means 12 here by way of example in each case pass through a positive-locking element 11 of the motor element 2.
  • the spring means 12 comprise two strip-shaped spring sections, which are connected to one another via a connecting section 18, which is bent in the embodiment shown, in order thus to circumnavigate the actuator 3.
  • the connecting portion 13 is formed integrally with the spring portions, wherein it is preferably in the spring means 12 is a stamped and bent part. Due to the one-piece configuration or by connecting two spring strips or spring sections together, the entire spring means 12 can be transferred in a common fixing movement in the securing position shown in Fig. 8. In the embodiment shown in FIG. 9, two integrally formed or interconnected spring sections are also again provided, in which case, however, the connecting portion 18 is designed just in the manner of an angled handle.
  • the spring means 12 comprise two rotatably adjustable spring sections, which are connected to one another via a bent connecting section 18, so as to be able to realize the rotational fixing movement of both spring sections in a common movement.
  • the spring means 12 comprise a main spring section 19 and a secondary spring section 20 running as an example.
  • the main spring section 19 has, as shown in FIG. 13, the task in the illustrated securing position of the actuator 3 against the motor element 2, while the secondary spring portion 20, as is apparent from Fig. 12, the spring means 12 in a pre-assembly position on the actuator 3 ensures captive.
  • the secondary spring section 20 engages in a corresponding passage opening of the actuator 3.
  • Fig. 13 Montagetechnischsposition shown a spring clip 21 and a spring survey 21 of the secondary spring section 20 is completely pushed through the aforementioned recess and thus has little or no spring action, while the main spring portion 19 with its spring action the actuator 3 vollfederkraftbeaufschlagt and simultaneously the actuator 3 against ensures a translational removal against the translational mounting direction on the motor element 2.
  • the secondary spring section 20 is substantially more filigree, in the specific embodiment narrower.
  • the spring elevations 21 are arranged offset in the direction of the longitudinal extension of the spring means 12.
  • the spring means 12 are designed as spring clips with two at least approximately parallel longitudinal sections.
  • the spring means 12 can be held in a pre-assembly position by clamping on the actuator 3, as shown in Fig. 15.
  • the spring means engage in an opening 22 in the actuator 3 a.
  • the spring means 12 can be transferred to the securing position shown in FIG. 16, where they enforce here exemplary in this safety position positive locking elements 1 1 of the motor element 2 in the direction of its longitudinal extension and thus the actuator 3 against a translational Lock removal.
  • 1 1 guide portions are integrally formed on the interlocking elements to guide the staple-shaped spring means 12 in their translatory fixing movement.
  • FIG. 17 an embodiment of a camshaft adjusting device 1 and an actuator 3 thereof is shown, in which the example here strip-shaped spring means 12, as shown in the drawing plane below, are secured in a pre-assembly position positively on the actuator 3, by a survey 23 of the actuator 3, which is located on a guide or support surface for the spring means 12 engages in an opening 24 in the spring means 12.
  • FIG. 18 shows by way of example a generic installation situation of an actuator of a camshaft adjusting device according to the invention, as it can be implemented in all of the embodiments described above, but not shown there in detail for reasons of clarity is. It can be seen that circumferentially on the actuator 3 in a lateral circumferential groove 25 formed as a conventional O-ring seal ring seal 26 is received, which is subjected to force in the installation situation in the radial direction and thereby radially inward on the groove bottom of the circumferential groove and the inner circumference 27th a receiving opening in the motor element 2 for the actuator 3 is supported.
  • the ring seal 26 is subjected to force either during assembly or disassembly in the circumferential direction about the adjustment axis 5 of the actuator armature.
  • the annular seal 26 is moved along a chamfer or insertion bevel 28 of the receiving opening on the motor element 2, whereby a radial force component is generated on the annular seal 26.

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

Abstract

A camshaft adjusting device comprises an electromagnetic actuator (3) having an armature that is adjustable axially along an adjustment axis (5) in order to actuate a hydraulic valve for cam adjustment, and fastening means for attaching the actuator (3) to an engine element (2), wherein the fastening means comprise spring means (12) which, in a securing position (13), clamp the actuator (3) to the engine element (2). According to the invention, it is provided that the fastening means have form-fitting means (8) as an anti-rotation means for preventing a rotational movement of the actuator (3) in an assembly position (7) relative to the engine element (2), which form-fitting means are configured and arranged in such a way that the actuator (3) is adjustable in the assembly position (7) by a purely translational assembly movement on the engine element (2), in particular along the adjustment axis (5) of the armature, and in such a way that the spring means (12), in the securing position (13), block a dismantling path for a purely translational dismantling movement of the actuator (3) in the direction opposite to the assembly movement, so that said actuator cannot be dismantled in the direction opposite to the purely translational assembly direction.

Description

Nockenwellenverstellvorrichtung, Verbrennungsmotor  Camshaft adjuster, internal combustion engine
sowie Montageverfahren  as well as assembly procedures
Die Erfindung betrifft eine Nockenwellenverstellvorrichtung gemäß dem Oberbegriff des Anspruchs 1 umfassend einen elektromagnetischen Aktu- ator mit einem entlang einer Verstellachse axial verstellbaren Anker zur Betätigung eines hydraulischen Ventils zur Nockenwellenverstellung. Die Nockenwellenverstellvorrichtung umfasst Befestigungsmittel zum Festle- gen des Aktuators an einem Motorelement, insbesondere ein Gehäuseelement, beispielsweise eines Kettenkastens oder am Motorblock. Ferner betrifft die Erfindung einen Verbrennungsmotors, insbesondere einen Kraftfahrzeugverbrennungsmotor mit einer solchen Nockenwellenverstell- vorrichtung sowie ein Montageverfahren für eine Nockenwellenverstellvor- richtung gemäß dem Oberbegriff des Anspruchs 13. Nockenwellenver- stellvorrichtungen für Verbrennungsmotoren sind hinlänglich bekannt und dienen zur Veränderung der relativen Winkellage der Nockenwelle und damit der Nocken gegenüber der Kurbelwelle einer Brennkraftmaschine. Die Nockenwellenverstellung erfolgt dabei hydraulisch, wobei die Steue- rung des Druckfluids über mindestens ein hydraulisches Ventil erfolgt, welches mittels eines einen axial entlang einer Verstellachse verstellbaren Anker umfassenden Aktuators betätigbar ist. The invention relates to a camshaft adjusting device according to the preamble of claim 1 comprising an electromagnetic Aktor ator with an adjusting axis along an axially adjustable armature for actuating a hydraulic valve for adjusting the camshaft. The camshaft adjusting device comprises fastening means for fixing the actuator to a motor element, in particular a housing element, for example a chain box or to the engine block. Furthermore, the invention relates to an internal combustion engine, in particular a motor vehicle internal combustion engine with such a Nockenwellenverstell- device and an assembly method for a Nockenwellenverstellvor- direction according to the preamble of claim 13. Nockenwellenver- stellvorrichtungen for internal combustion engines are well known and are used to change the relative angular position of the camshaft and thus the cam relative to the crankshaft of an internal combustion engine. The camshaft adjustment takes place hydraulically, the control of the pressurized fluid being effected via at least one hydraulic valve which can be actuated by means of an actuator comprising an armature which can be adjusted axially along an adjustment axis.
Zur Befestigung des Aktuators der Nockenwellenverstellvorrichtung an einem Motorelement ist es bekannt eine Schraubverbindung einzusetzen, wie dies beispielsweise in der DE 102 1 1 467 A1 , der DE 10 2007 019 923 A1 und DE 10 2006 031 517 A1 offenbart ist. Diese Montage ist relativ aufwendig und daher vergleichsweise teuer. Daher wurden beispielsweise von der Anmelderin einfacher montierbare Nockenwellenverstellvorrichtungen entwickelt, wie diese beispielsweise in der DE 20 2010 007 406 U1 beschrieben sind. Bei der dort dargestellten Nockenwellenverstellvorrichtung umfassen die Befestigungsmittel mehrere über den Umfang verteilt angeordnete federnde Elemente zur Ausbildung eines Steck-Dreh-Verschlusses, um somit den Aktuator vereinfacht an einem Motorelement durch eine Verdrehbewegung montieren zu können. Aus der DE 10 2010 003 648 B3 ist eine Nockenwellenverstellvorrichtung bekannt, bei welcher der Aktuator ebenfalls in einer Steck-Dreh- Bewegung an einem Motorelement festgelegt wird. Nachteilig bei der bekannten Lösung ist jedoch, dass für die Realisierung der Verdrehbewegung zum Überführen des Aktuators in seine Montageposition ausrei- chend Raum in Umfangsrichtung freigehalten werden muss, der nicht zur Anordnung weiterer Funktionsteile benutzt werden kann. Weiterhin ist nachteilig, dass der Aktuator der bekannten Nockenwellenverstellvorrich- tung noch unbeabsichtigt durch Aufbringen einer ausreichend großen Demontagekraft in Umfangsrichtung aus seiner Montageposition heraus verstellt werden kann. For fastening the actuator of the camshaft adjusting device to a motor element, it is known to use a screw connection, as disclosed, for example, in DE 102 1 1 467 A1, DE 10 2007 019 923 A1 and DE 10 2006 031 517 A1. This assembly is relatively expensive and therefore relatively expensive. Therefore, for example, by the applicant easier to install camshaft adjusting devices have been developed, as described for example in DE 20 2010 007 406 U1. In the camshaft adjusting device shown there, the fastening means comprise a plurality of circumferentially spaced resilient elements for forming a plug-in rotary closure, so as to be able to simplify the actuator to be mounted on a motor element by a twisting movement. From DE 10 2010 003 648 B3 a camshaft adjusting device is known in which the actuator is also set in a plug-and-turn motion on a motor element. A disadvantage of the known solution, however, is that sufficient space must be kept free in the circumferential direction for realizing the twisting movement for transferring the actuator into its mounting position, which can not be used to arrange further functional parts. A further disadvantage is that the actuator of the known Nockenwellenverstellvorrich- device can be unintentionally adjusted by applying a sufficiently large disassembly force in the circumferential direction from its mounting position out.
Aus der DE 20 201 1 050 746 U1 ist eine Statorbaueinheit für eine elektromagnetische Nockenwellenverstellvorrichtung bekannt, bei welcher der elektromagnetische Aktuator in einer kombinierten Steck-Drehbewegung montierbar und demontierbar ist. In einer Montageposition ist ein Verdrehen des elektromagnetischen Aktuators möglich. From DE 20 201 1 050 746 U1 a Statorbaueinheit for an electromagnetic camshaft adjusting device is known in which the electromagnetic actuator is mounted in a combined plug-in rotary movement and disassembled. In a mounting position, a rotation of the electromagnetic actuator is possible.
Aus der DE 10 2010 012 917 A1 ist eine Nockenwellenverstellvorrichtung bekannt, die lediglich in einer kombinierten Steckdrehbewegung montier- bar und demontierbar ist, wobei in einer Montageposition ein Verdrehen des Aktuators möglich ist. In einer Ausführungsform erfolgt eine Sicherung des Aktuators mittels eines Federbügels. From DE 10 2010 012 917 A1 discloses a camshaft adjusting device is known, which can be mounted and dismantled only in a combined plug-in rotary movement, wherein in a mounting position, a rotation of the actuator is possible. In one embodiment, the actuator is secured by means of a spring clip.
Problematisch bei sämtlichen Nockenwellenverstellvorrichtungen, bei de- nen der Aktuator mittels einer Steck-Dreh-Bewegung an dem Motorelement festgelegt wird ist, dass eine zur Anwendung kommende, in der Regel in radialer Richtung dichtende Ringdichtung bei der Montage axial (Steckbewegung) sowie in Umfangsrichtung (Drehbewegung) kraftbeaufschlagt wird, wodurch die Ringdichtung extremen Kräften ausgesetzt wird, was zu einer Vorschädigung der Ringdichtung führen kann. Darüber hinaus ist die Handmontage aufgrund der hohen, notwendigen Kräfte unkomfortabel. The problem with all camshaft adjusting devices, in which the actuator is determined by means of a plug-and-turn movement on the motor element is that an applied, usually in the radial direction sealing ring seal during assembly axially (insertion movement) and in the circumferential direction ( Rotary movement) is subjected to force, whereby the ring seal is exposed to extreme forces, which can lead to a pre-damage of the ring seal. In addition, the manual assembly is uncomfortable due to the high, necessary forces.
Ein weiteres Problem besteht darin, dass sich bekannte Dreh-Steck- Verbindungen aufgrund der notwendigen Beaufschlagung der Ringdichtung in axialer Richtung (Überdrücken) und in Umfangsrichtung (Drehbewegung) erschwert ist, wodurch als Ringdichtungen keine herkömmlichen O-Ringe sondern Spezialdichtungen eingesetzt werden, mit denen versucht wird, vorstehende Problematik zu entschärfen. Another problem is that known rotary plug-in connections due to the necessary action on the ring seal in the axial direction (overpressure) and in the circumferential direction (rotary motion) is difficult, which are used as ring seals no conventional O-rings but special seals with which attempted to defuse the above problem.
Ausgehend von dem vorgenannten Stand der Technik liegt der Erfindung daher die Aufgabe zugrunde eine Nockenwellenverstellvorrichtung mit einem mit einer einfachen, vorzugsweise wenig kraftintensiven, Montagebewegung montierbaren Aktuator anzugeben, der besser gegen eine un- beabsichtigte Demontage gesichert ist. Ferner besteht die Aufgabe darin, einen Verbrennungsmotor mit einer solchen Nockenwellenverstellvorrich- tung sowie ein vereinfachtes Montageverfahren für eine Nockenwellenver- stellvorrichtung anzugeben, das eine optimale Sicherung des Aktuators am Motorelement garantiert. Diese Aufgabe wird hinsichtlich der Nockenwellenverstellvorrichtung mit den Merkmalen des Anspruchs 1 , hinsichtlich des Verbrennungsmotors mit den Merkmalen des Anspruchs 12 und hinsichtlich des Montageverfahrens mit den Merkmalen des Anspruchs 13 gelöst. Vorteilhafte Weiter- bildungen der Erfindung sind in den Unteransprüchen angegeben. In den Rahmen der Erfindung fallen sämtliche Kombinationen aus zumindest zwei von in der Beschreibung, den Ansprüchen und/oder den Figuren offenbarten Merkmalen. Zur Vermeidung von Wiederholungen sollen vorrichtungsgemäß offenbarte Merkmale als verfahrensgemäß offenbart gel- ten und beanspruchbar sein. Ebenso sollen verfahrensgemäß offenbarte Merkmale als vorrichtungsgemäß offenbart gelten und beanspruchbar sein. Based on the aforementioned prior art, the object of the invention is therefore to provide a camshaft adjusting device with an actuator mountable with a simple, preferably less powerful, assembly movement, which is better secured against unintentional disassembly. Furthermore, the object is to provide an internal combustion engine with such a camshaft adjusting device as well as a simplified assembly method for a camshaft adjusting device, which guarantees optimum securing of the actuator on the motor element. This object is achieved with regard to the camshaft adjusting device having the features of claim 1, with regard to the internal combustion engine having the features of claim 12 and with regard to the mounting method having the features of claim 13. Advantageous developments of the invention are specified in the subclaims. All combinations of at least two features disclosed in the description, the claims and / or the figures fall within the scope of the invention. In order to avoid repetitions, features disclosed in accordance with the device should be deemed to be disclosed according to the method and to be able to be claimed. Likewise, according to the method disclosed features should be considered as device disclosed and claimed claimable.
Der Erfindung liegt der Gedanken zugrunde die Befestigungsmittel der Nockenwellenverstellvorrichtung so auszubilden, dass der Aktuator in einer reinen translatorischen Bewegung, insbesondere einer reinen Steckbewegung, bevorzugt entlang der Längserstreckung der Verstellachse des axial verstellbaren Ankers des Aktuators, in seine Montageposition am Motorelement überführbar ist, in welcher der Aktuator gegen ein Verdre- hen in Umfangsrichtung relativ zum Motorelement gesichert ist, wobei im Umkehrschluss die Demontagebewegung ebenfalls rein translatorisch in eine der Montagerichtung entgegengesetzte Richtung ausführbar ist. Auf diese Weise kann in Umfangsrichtung Bauraum eingespart werden, da kein Raum zur Realisierung einer Verdrehbewegung des Aktuators, ins- besondere aufgrund einer ggf. vorgesehenen radial überstehenden Kontaktbuchse (Anschlussbuchse) des Aktuators, am Motorelement freigehalten werden muss. Als weitere erfinderische Maßnahme ist vorgesehen, dass die Federmittel, mit denen der Aktuator gegen das Motorelement verspannbar ist, in einer Sicherungsposition, in der sie vorgenannte Ver- spannwirkung entfalten, den dem Montageweg um 180° entgegengesetzten Demontageweg, bevorzugt entlang der Verstellachse des Ankers, d.h. entlang der Längserstreckung der Verstellachse des Ankers versperren, beispielsweise indem sie in den Aktuator eingreifen, diesen übergreifen oder durchsetzen. Dabei beaufschlagen die Federmittel den Aktuator im Gegensatz zu Ausführungsformen aus dem Stand der Technik in der (translatorischen) Montagerichtung mit einer Federkraft. Den Federmitteln kommt somit in ihrer Sicherungsposition eine Doppelfunktion zu - sie bringen eine Federkraft in der Montagerichtung auf den Aktuator in Richtung Motorelement auf und verriegeln darüber hinaus einen translatorischen Demontageweg, wobei gleichzeitig ein Verdrehen des Aktuators in seiner Montageposition in Umfangsrichtung durch die Formschlussmittel, in welche der Aktuator ausschließlich translatorisch einführbar ist sicher verhindert wird. The invention is based on the idea of designing the fastening means of the camshaft adjusting device in such a way that the actuator can be transferred into its mounting position on the motor element in a pure translational movement, in particular a pure plugging movement, preferably along the longitudinal extent of the adjustment axis of the axially adjustable armature of the actuator the actuator is secured against rotation in the circumferential direction relative to the motor element, wherein, conversely, the disassembly movement is also purely translational in a direction opposite to the mounting direction executable. In this way, space can be saved in the circumferential direction, since no space for realizing a rotational movement of the actuator, in particular due to a possibly provided radially projecting contact socket (connector socket) of the actuator, must be kept free on the motor element. As a further inventive measure, it is provided that the spring means with which the actuator can be braced against the motor element, in a securing position in which they develop the aforesaid tensioning action, disassemble the installation path by 180 °, preferably along the adjustment axis of the armature, ie block along the longitudinal extension of the adjustment axis of the armature, for example by engaging in the actuator, this overlap or enforce. In this case, the spring means act on the actuator in contrast to embodiments of the prior art in the (translational) mounting direction with a spring force. The spring means thus comes in its safety position a double function - they bring a spring force in the mounting direction on the actuator in the direction of engine element and also lock a translational disassembly, while twisting the actuator in its mounting position in the circumferential direction by the interlocking means, in which the actuator can only be inserted translationally is reliably prevented.
Das erfindungsgemäße Montageverfahren greift vorstehende konstruktive Auslegung auf, indem der Aktuator in einer reinen translatorischen Montagebewegung (Steckbewegung), bevorzugt in Richtung der Verstellachse des Ankers, besonders bevorzugt in Richtung der Längserstreckung (Verstellrichtung) eines mittels des Ankers betätigbaren Ventilstößels des Ventils der Nockenwellenverstellung, in seine Montageposition am Motorele- ment überführt wird, in welcher der Aktuator gegen ein Verdrehen in Umfangsrichtung mittels der Formschlussmittel gesichert ist, wobei die Federmittel nach dem Überführen des Aktuators in seine Montageposition in eine Sicherungsposition überführt werden, insbesondere durch Verstellen der Federmittel in einer sich senkrecht zur Montagerichtung erstreckenden Ebene, wobei die Federmittel in dieser Sicherungsposition zum einen eine axiale Spannkraft auf den Aktuator in Richtung Motorelement aufbringen und darüber hinaus einen der Montagebewegung entgegengesetzte Demontagebewegung bzw. einen einem translatorischen Montageweg entgegengerichteten Demontageweg versperren bzw. blockieren, insbeson- dere indem die Federmittel den Aktuator durchsetzen, übergreifen oder zumindest in diesen eingreifen, jedenfalls so mit diesem in Wechselwir- kung treten, dass dieser nicht entgegen der translatorischen Montagerichtung translatorisch demontiert werden kann. Bevorzugt sind die Federmittel die einzigen Mittel, die die translatorische, insbesondere zerstörungsfreie, Demontage verhindern, d.h. gemäß einer bevorzugten Ausführungs- form befinden sich keine weiteren Elemente im Demontageweg. The assembly method according to the invention adopts the above constructive design in that the actuator in a pure translational assembly movement (plug movement), preferably in the direction of the adjustment axis of the armature, particularly preferably in the direction of the longitudinal extent (adjustment) of an actuatable by means of the armature valve tappet of the valve of the camshaft adjustment its mounting position is transferred to the motor element, in which the actuator is secured against rotation in the circumferential direction by means of the positive locking means, wherein the spring means are transferred after transferring the actuator in its mounting position in a safety position, in particular by adjusting the spring means in a vertically to the mounting direction extending plane, wherein the spring means in this safety position on the one hand apply an axial clamping force on the actuator in the direction of the motor element and beyond an opposing assembly movement block the disassembly movement or a disassembly path opposing a translatory assembly path, in particular by the spring means passing through, overlapping or at least intervening in the actuator, in any case interacting with the latter in such a way. kung occur that this can not be removed in translation opposite to the translational mounting direction. The spring means are preferably the only means which prevent the translational, in particular non-destructive, disassembly, ie according to a preferred embodiment, there are no further elements in the disassembly path.
Die erfindungsgemäße Ausgestaltung der Nockenwellenverstellvorrich- tung und die erfindungsgemäße Realisierung des Montageverfahrens sowie des Demontageverfahrens gewährleisten, dass eine vorzugsweise am Aktuator vorgesehen Ringdichtung, die besonders bevorzugt im montierten Zustand in radialer und/oder axialer Richtung den Aktuator gegenüber dem Motorelement abdichtet bei der Montage mangels Drehbewegung nicht in Umfangsrichtung kraftbeaufschlagt wird, wodurch die Ringdichtung optimal geschont wird. Dies ist auf die erfindungsgemäße Trennung der Montageschritte des axialen Aufsteckens des Aktuators und damit Überdrücken des radial dichtenden O-Rings und der winklig hierzu orientierte Montagekraft für die Federklammern zurückzuführen. The embodiment according to the invention of the camshaft adjusting device and the realization of the assembly method and dismantling method according to the invention ensure that a ring seal which preferably seals in the mounted state in the radial and / or axial direction seals the actuator relative to the motor element during assembly for lack of rotational movement is not subjected to force in the circumferential direction, whereby the ring seal is optimally protected. This is due to the inventive separation of the assembly steps of the axial Aufsteckens of the actuator and thus overpressure of the radially sealing O-ring and the angularly oriented therefor mounting force for the spring clips.
Darüber hinaus wird die Montagekraft sowie die Demontagekraft, insbe- sondere zur Handmontagezwecken im Vergleich zum Stand der Technik deutlich reduziert. Auch besteht die Möglichkeit, als Ringdichtung, herkömmliche O-Ring-Dichtungen einzusetzen - auf Spezialgeometrien zur Anpresskraftminimierung kann verzichtet werden. Besonders bevorzugt wird die O-Ring-Dichtung bei der Montage axial entlang einer Einführ- schräge bewegt, die dafür Sorge trägt, dass die vorzugsweise als O-Ring- Dichtung ausgeführte Ringdichtung aufgrund der Axialbewegung mit einer Radialkraftkomponente beaufschlagt und die Ringdichtung damit in radialer Richtung komprimiert wird. Im Ergebnis wird die O-Ring-Dichtung beim Entlangbewegen entlang der Einführschräge ausschließlich in axialer Richtung sowie in radialer Richtung kraftbeaufschlagt, nicht jedoch in Umfangsrichtung. In Weiterbildung der Erfindung ist mit Vorteil vorgesehen, dass der Aktuator, insbesondere mittels der Formschlussmittel, bei seiner translatorischen Montagebewegung, insbesondere während eines Endabschnitts dieser Montagebewegung axial geführt ist, d.h. gegen ein Verdrehen in Umfangsrichtung gesichert ist. Dies kann dadurch realisiert werden, dass die Formschlussmittel von Aktuator und Motorelement bereits vor Erreichen der Montageposition des Aktuators am Motorelement axial ineinandergreifen. In addition, the assembly force and the disassembly force, especially for manual installation purposes compared to the prior art significantly reduced. It is also possible to use conventional O-ring seals as a ring seal - special geometries for minimizing contact pressure can be dispensed with. During the assembly, the O-ring seal is particularly preferably moved axially along an insertion bevel, which ensures that the ring seal, which is preferably designed as an O-ring seal, is acted upon by a radial force component due to the axial movement and the annular seal thus in the radial direction is compressed. As a result, the O-ring seal during movement along the insertion be subjected to force only in the axial direction and in the radial direction, but not in the circumferential direction. In a further development of the invention is advantageously provided that the actuator, in particular by means of the positive locking means, is axially guided in its translational assembly movement, in particular during an end portion of this assembly movement, that is secured against rotation in the circumferential direction. This can be realized by the fact that the positive locking means of the actuator and the motor element already engage axially on the motor element before reaching the mounting position of the actuator.
Im Hinblick auf die konkrete Ausgestaltung der Formschlussmittel gibt es unterschiedliche Möglichkeiten. Wesentlich ist, dass diese durch ein axiales Ineinandergreifen, insbesondere entlang der Ankerverstellachse, eine, bevorzugt jegliche, Verdrehbewegung des Aktuators in seiner Montagepo- sition verhindern. Dabei ist es beispielsweise möglich mindestens ein sich parallel zur Verstellachse erstreckendes Formschlusselement am Aktuator vorzusehen, welches in der Montageposition (und vorzugsweise bereits ein Stück davor) jeweils zwischen zwei in einer Umfangsrichtung um die Verstellachse des Ankers beabstandeten und sich parallel zur Verstell- achse erstreckende Gegenelemente aufgenommen ist. Anstelle von in Umfangsrichtung beanstandeten Gegenelementen können auch zwei in Umfangsrichtung beabstandete Gegenelementabschnitte, beispielsweise zwei Innenumfangsabschnitte einer Aufnahmeöffnung im Motorelement vorgesehen sein. Zusätzlich oder alternativ kann vorstehende Anordnung auch umgekehrt realisiert werden, nämlich in dem mindestens ein am Motorelement vorgesehenes und sich parallel zur Verstellachse des Ankers in Richtung Aktuator erstreckendes Formschlusselement in der Montageposition (und vorzugsweise bereits ein Stück zuvor) jeweils zwischen zwei in einer Umfangsrichtung um die Verstellachse beabstandete und sich parallel zur Verstellachse erstreckenden Gegenelementen oder Gegen- elementabschnitten, beispielsweise Innenumfangsabschnitten einer Öff- nung im Aktuator aufgenommen ist. Unabhängig davon, ob die Gegenelemente oder Gegenelementabschnitte am Aktuator oder am Motorelement vorgesehen sind, begrenzen sie eine translatorisch zugängliche Montageöffnung, in die das gegenüberliegende Formschlusselement durch eine translatorische Stellbewegung des Aktuators auf das Motorelement zu einführbar und dadurch in die Montageposition überführbar ist. With regard to the specific design of the positive locking means, there are different possibilities. It is essential that they prevent one, preferably any, rotational movement of the actuator in its mounting position by an axial meshing, in particular along the Ankerverstellachse. In this case, it is possible, for example, to provide at least one form-locking element extending parallel to the adjustment axis on the actuator, which in the mounting position (and preferably already a little ahead) respectively between two spaced apart in a circumferential direction about the adjustment axis of the armature and parallel to the adjustment axis extending counter elements is included. Instead of counterclaimed in the circumferential direction counter elements and two circumferentially spaced counter element sections, for example, two inner peripheral portions of a receiving opening may be provided in the engine element. Additionally or alternatively, the above arrangement can also be realized vice versa, namely in which at least one of the motor element and parallel to the adjustment axis of the armature in the direction of the actuator extending positive locking element in the mounting position (and preferably already a piece previously) between two in a circumferential direction around the Adjusting axis spaced and parallel to the adjustment axis extending counter elements or counter element sections, for example, inner peripheral portions of an opening tion is included in the actuator. Regardless of whether the counter-elements or counter-element sections are provided on the actuator or on the motor element, they limit a translationally accessible mounting opening, into which the opposite positive-locking element can be introduced by a translatory adjusting movement of the actuator to the motor element and thereby transferred to the mounting position.
Bevorzugt erstreckt/erstrecken sich das Formschlusselement und/oder die Gegenelemente des Aktuators in radialer Richtung nach außen. The positive-locking element and / or the counter-elements of the actuator preferably extend / extend in the radial direction to the outside.
Zum Versperren eines dem translatorischen Montageweg entgegengesetzten translatorischen Demontagewegs ist es bevorzugt, wenn die Federmittel in deren Sicherungsposition die Formschlussmittel, insbesondere das Formschlusselement und/oder die Gegenelemente oder Gegenele- mentabschnitte durchsetzen oder zumindest in eine Aufnahmeöffnung des Formschlusselementes oder mindestens eines Gegenelementes oder Ge- genelementabschnittes eingreifen. Gleichzeitig kann hierdurch das Formschlusselement in seiner Sicherungsposition fixiert werden. Als besonders vorteilhaft hat es sich dabei erwiesen, wenn das Federelement zwischen zwei in Umfangsrichtung gegenüberliegenden Gegenelementen des Motorelementes aufgenommen ist und dabei das Formschlusselement des Aktuators übergreift oder dieses durchsetzt. For blocking a translational disassembly path opposite the translational mounting path, it is preferred if the spring means in their securing position pass through the interlocking means, in particular the interlocking element and / or the counter elements or counter element sections or at least into a receiving opening of the interlocking element or at least one counter element or counterpart element section intervention. At the same time thereby the positive locking element can be fixed in its securing position. It has proved to be particularly advantageous when the spring element is received between two opposing counter-elements of the motor element in the circumferential direction and thereby engages over or passes through the positive-locking element of the actuator.
Auch ist es möglich, dass das Formschlusselement von den Federmitteln, insbesondere winklig zu einer Demontagerichtung durchsetzt wird und sich axial an den Gegenelementen abstützt. It is also possible that the positive-locking element is penetrated by the spring means, in particular at an angle to a disassembly direction and is supported axially on the counter-elements.
Zweckmäßig ist es, wenn die Federmittel in einer translatorischen oder rotatorischen Fixierbewegung in die Sicherungsposition überführbar sind, in welcher sie den Demontageweg versperren und den Aktuator federkraft belasten, wobei es besonders bevorzugt ist, wenn die translatorische oder rotatorische Fixierbewegung in einer sich winklig, ganz besonders bevorzugt senkrecht zur Verstellachse des Ankers und damit winklig oder senkrecht zur Montage- bzw. Demontagerichtung erstreckenden Fixierebene ausführbar ist. Im Hinblick auf die konkrete Ausgestaltung der Federmittel gibt es unterschiedliche Möglichkeiten. It is expedient if the spring means are translatable in a translational or rotational fixing movement in the securing position in which they obstruct the disassembly path and load the actuator spring force, it being particularly preferred if the translational or rotatory fixing movement in an angular plane, very particularly preferably perpendicular to the adjustment axis of the armature and thus angled or perpendicular to the mounting or dismounting direction extending fixing plane is executable. With regard to the specific design of the spring means, there are different possibilities.
Besonders zweckmäßig ist es, wenn die Federmittel einen, insbesondere metallischen Federstreifen umfassen, der senkrecht zu seiner Längs- oder Umfangserstreckung um die Verstellachse des Aktuators federnd ausge- bildet ist, insbesondere durch das Vorsehen mindestens einer elastisch verformbaren Biegung bzw. Krümmung, die sich senkrecht zur Längserstreckung des Federstreifens erstreckt. Alternativ zu einem Federstreifen kann auch beispielsweise eine Federklammer eingesetzt werden, die zwei, insbesondere streifenförmige Abschnitte aufweist, wobei bevorzugt einer der Abschnitte eben ausgebildet ist und der andere eine Wölbung aufweist. Eine klammerartige Ausführung erleichtert die Vormontage der Federmittel in einer Vormontageposition am Aktuator. Unabhängig von der konkreten Ausgestaltung der Federmittel, beispielsweise als mindestens ein Federstreifen oder mindestens eine Federklammer, ist es bevorzugt mehrere Federelemente, insbesondere Federstreifen oder Federklammern, vorzugsweise zwei Federelemente, insbesondere Federstreifen o- der Federklammern, vorzusehen und diese über einen Verbindungsabschnitt miteinander zu verbinden, insbesondere einteilig auszubilden, um somit beide Federelemente an in Umfangsrichtung um die Verstellachse des Ankers beabstandeten Positionen gleichzeitig, d.h. durch eine gemeinsame Fixierbewegung in die Sicherungsposition bewegen zu können, in der sie in bevorzugt jeweils den Aktuator in Richtung Motorelement federkraftbeaufschlagen und gleichzeitig den translatorischen Demontageweg versperren bzw. verriegeln. Wie bereits angedeutet ist es für eine erleichterte Montage besonders zweckmäßig, wenn die Federmittel, insbesondere in eine Ausnehmung, des Aktuators vormontierbar sind und in der Montageposition des Aktua- tors aus einer Vormontageposition am Aktuator in die Sicherungsposition überführbar sind. Bevorzugt sind die Federmittel in der Vormontageposition am Aktuator federnd, insbesondere durch Verrasten oder ausschließlich Klemmung gehalten. It is particularly expedient if the spring means comprise a, in particular metallic, spring strip, which is designed to be resilient perpendicular to its longitudinal or circumferential extension about the adjustment axis of the actuator, in particular by providing at least one elastically deformable bend or curvature which is perpendicular extends to the longitudinal extension of the spring strip. As an alternative to a spring strip can also be used, for example, a spring clip having two, in particular strip-shaped sections, wherein preferably one of the sections is flat and the other has a curvature. A clip-type design facilitates pre-assembly of the spring means in a preassembly position on the actuator. Regardless of the specific configuration of the spring means, for example as at least one spring strip or at least one spring clip, it is preferable to provide a plurality of spring elements, in particular spring strips or spring clips, preferably two spring elements, in particular spring strips o- spring clips, and connect them via a connecting portion, in particular, in one piece form, so that both spring elements at the same time in the circumferential direction about the adjustment of the armature spaced positions to move, ie by a common fixing movement in the securing position in which they preferably spring force in each case the actuator towards the motor element and block the translational disassembly or lock. As already indicated, it is particularly expedient for facilitated assembly when the spring means, in particular in a recess, of the actuator are preassembled and can be transferred in the mounting position of the Aktua- sector from a pre-assembly position on the actuator in the securing position. Preferably, the spring means are resilient in the preassembly position on the actuator, in particular held by latching or exclusively clamping.
Im Hinblick auf die konkrete Ausgestaltung der, bevorzugt als Stanz- Biege-Teil oder -Teile ausgebildeten, Federmittel zur Realisierung einer Vormontierbarkeit gibt es unterschiedliche Möglichkeiten. Eine Möglichkeit besteht in der vorerwähnten Ausgestaltung der Federmittel als Federklammer. Jedoch ist auch bei einer anderen, beispielsweise bei einer streifenförmigen, Ausgestaltung der Federmittel eine Vormontierbarkeit mög- lieh, insbesondere dann, wenn die Federmittel - unabhängig von der Realisierung einer Streifenform, zwei, beispielsweise parallele Federabschnitte umfassen, nämlich einen Hauptfederabschnitt, der für das Verspannen des Aktuator gegen das Motorelement in der Sicherungsposition verantwortlich ist und einen Nebenfederabschnitt zum, beispielsweise klemmen- den und/oder federnden, Halten der Federmittel in einer Vormontageposition am Aktuator, wobei bevorzugt der Nebenfederabschnitt so ausgebildet und/oder angeordnet ist, dass dieser in der Sicherungsposition der Federmittel den Aktuator nicht oder mit einer geringeren Federkraft gegen das Motorelement verspannt als der Hauptfederabschnitt, so dass vermie- den wird, dass das Überführen der Federmittel in die Sicherungsposition durch eine ansonsten vorgesehene Addition der Federkräfte der Federabschnitte erschwert würde. With regard to the specific embodiment of the spring, preferably designed as a stamped or bent part or parts, to realize a Vormontierbarkeit there are different possibilities. One possibility is in the aforementioned embodiment of the spring means as a spring clip. However, even in another, for example, in a strip-shaped, design of the spring means Vormagierbarkeit possible lent, especially if the spring means - regardless of the realization of a strip form, two, for example, parallel spring sections comprise, namely a main spring portion, for the bracing the actuator is responsible against the motor element in the securing position and a secondary spring portion for, for example, clamping and / or resilient, holding the spring means in a preassembly position on the actuator, wherein preferably the secondary spring portion is formed and / or arranged that this in the securing position the spring means does not clamp the actuator or with a smaller spring force against the motor element than the main spring section, so that it is avoided that the transfer of the spring means in the securing position by an otherwise provided addition of the spring forces of the Federabschn It would be difficult.
Damit der Nebenfederabschnitt in der Sicherungsposition weniger stark oder nicht federnd auf den Aktuator wirkt ist es bevorzugt, die Federbiegungen von Hauptfederabschnitt und Nebenfederabschnitt in Richtung der Längserstreckung von Hauptfederabschnitt und Nebenfederabschnitt zu versetzen und/oder den Nebenfederabschnitt schmaler und/oder aus einem dünneren Material auszubilden als den Hauptfederabschnitt. Um eine exakte Lage der Federmittel in der Sicherungsposition zu gewährleisten bzw. die Sicherungsposition genau zu definieren ist es bevorzugt, die Federmittel mit einem Anschlag zu versehen, der so ausgebildet ist, dass er die Fixierbewegung in die Sicherungsposition begrenzt. Der Anschlag kann beispielsweise als abgewinkeltes Ende eines federstreifen- förmigen Federmittels realisiert werden. Auch ist es möglich, die Federmittel mit einem, vorzugsweise winklig zur Längsersteckung der Federmittel, insbesondere eines Federstreifens angeordneten Griffabschnitt zu versehen, um die Federmittel erleichtert greifen und damit vereinfacht montieren und demontieren zu können. Es ist auch denkbar, dass vorgenannter Griffabschnitt gleichzeitig als Anschlag dient. Zusätzlich oder alternativ zur Realisierung eines Anschlages an den Federmitteln ist es möglich, einen die Montagebewegung, d.h. Fixierbewegung der Federmittel begrenzenden Anschlag am Motorelement auszubilden, beispielsweise als axiales Ende einer Federmittelführung. Eine solche Ausführungsform ist insbe- sondere dann von Vorteil, wenn auf einen Anschlag an den Federmitteln verzichtet wird und/oder an den Federmitteln ein Griffabschnitt zum erleichterten Greifen derselben vorgesehen wird. In order for the secondary spring section to act less strongly or not resiliently on the actuator in the securing position, it is preferable for the spring bends of the main spring section and secondary spring section to be in the direction of To offset the longitudinal extent of the main spring portion and secondary spring portion and / or narrower the secondary spring portion and / or form of a thinner material than the main spring portion. In order to ensure an exact position of the spring means in the securing position or to define the securing position precisely, it is preferable to provide the spring means with a stop which is designed so that it limits the fixing movement in the securing position. The stop can be realized, for example, as an angled end of a spring strip-shaped spring means. It is also possible to provide the spring means with a, preferably at an angle to the longitudinal extent of the spring means, in particular a spring strip arranged grip portion to grip the spring means easier and thus easier to assemble and disassemble. It is also conceivable that the aforesaid grip section simultaneously serves as a stop. Additionally or alternatively to the realization of a stop on the spring means, it is possible to form a mounting movement, ie fixing movement of the spring means limiting stop on the motor element, for example as an axial end of a spring means guide. Such an embodiment is particularly advantageous when it is dispensed with a stop on the spring means and / or on the spring means a handle portion for facilitating gripping the same is provided.
Um die Federmittel in der Sicherungsposition gegen eine unbeabsichtigte Bewegung entgegen einer Fixierrichtung zu sichern ist es bevorzugt, einen Formschluss zwischen den Federmitteln und dem Aktuator und/oder dem Motorelement zu realisieren, insbesondere indem eine Öffnung oder Vertiefung in den Federmitteln vorgesehen ist, die formschlüssig mit einer Erhebung des Aktuators oder des Motorelementes zusammenwirkt. Vor- stehender erläuterter Formschluss kann auch realisiert werden, um die Federmittel in der Vormontageposition am Aktuator formschlüssig zu sichern. In order to secure the spring means in the securing position against unintentional movement against a fixing direction, it is preferred to realize a positive connection between the spring means and the actuator and / or the motor element, in particular by an opening or depression is provided in the spring means, the form-fitting with a survey of the actuator or the motor element cooperates. The above explained positive connection can also be realized in order to achieve the Secure spring means in the pre-assembly position on the actuator with positive locking.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnungen. Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings.
Diese zeigen in: Fg. 1 bis 2: ausschnittsweise ein erstes Ausführungsbeispiel einer These show in: Fg. 1 to 2: fragmentary a first embodiment of a
Nockenwellenverstellvorrichtung in unterschiedlichen Montage- bzw. Fixierstadien, wobei die Federmittel in deren Sicherungsposition Gegenelemente des Motorelementes durchsetzen und in gegenüberliegende Gegenelemen- te eingreifen,  Camshaft adjusting device in different mounting or fixing stages, wherein the spring means in their securing position pass through counter-elements of the motor element and engage in opposite Gegenelemen- te,
Fig. 3 und 4: ein alternatives Ausführungsbeispiel einer Nockenwellen- verstellvorrichtung, wobei die Federmittel in die Sicherungsposition Formschlusselemente des Aktuators durch- setzen, 3 and 4: an alternative embodiment of a camshaft adjusting device, wherein the spring means in the locking position enforce interlocking elements of the actuator,
Fig. 5 und 6: ein weiteres Ausführungsbeispiel einer Nockenwellenver- stellvorrichtung in unterschiedlichen Montagezuständen, Fig. 7: ein Ausführungsbeispiel einer Nockenwellenverstellvor- richtung mit rotatorisch festlegbaren Federmitteln, ein Ausführungsbeispiel einer Nockenwellenverstellvor- richtung mit zwei einteilig über ein Verbindungsstück ausgebildeten Federstreifen, wobei die Verbindung bogenförmig ausgestaltet ist, Fig. 9: ein weiteres alternatives Ausführungsbeispiel einer No- ckenwellenverstellvorrichtung mit geradlinig verbundenen Federstreifen, 5 shows a further exemplary embodiment of a camshaft adjusting device in different assembly states, FIG. 7 shows an exemplary embodiment of a camshaft adjusting device with rotatably determinable spring means, an exemplary embodiment of a camshaft adjusting device with two spring strips formed integrally via a connecting piece, wherein the connection is designed arcuate, 9 shows a further alternative exemplary embodiment of a camshaft adjusting device with rectilinearly connected spring strips,
Fig. 10: ein weiteres alternatives Ausführungsbeispiel einer No- ckenwellenverstellvorrichtung mit einteilig ausgebildeten, rotatorisch in eine Sicherungsposition überführbaren Federstreifen, 10 shows a further alternative exemplary embodiment of a camshaft adjusting device with a spring strip formed in one piece and rotatable into a securing position,
Fig. 1 1 bis 13: ein weiteres Ausführungsbeispiel einer Nockenwellenver- stellvorrichtung mit vormontierbaren Federmitteln in unterschiedlichen Montagepositionen, wobei die Federmittel jeweils einen Haupt- und einen Nebenfederabschnitt auf- weisen, 1 to 13 show a further exemplary embodiment of a camshaft adjusting device with pre-mountable spring means in different mounting positions, the spring means each having a main and a secondary spring section,
Fig. 14 bis 16: ein weiteres alternatives Ausführungsbeispiel einer No- ckenwellenverstellvorrichtung mit klammerartigen Federmitteln, 14 to 16 show a further alternative embodiment of a camshaft adjusting device with clamp-like spring means,
Fig. 17: ein weiteres Ausführungsbeispiel einer Nockenwellenver- stellvorrichtung, bei der die Federmittel in einer Vormontageposition am Aktuator verrastbar sind, und Fig. 18: eine schematische Darstellung einer Einbausituation eines 17 shows a further exemplary embodiment of a camshaft adjusting device in which the spring means can be latched on the actuator in a preassembly position, and FIG. 18 shows a schematic representation of an installation situation of a
Aktuators einer Nockenwellenverstellvorrichtung, wobei sich der Aktuator in radialer Richtung über eine als herkömmliche O-Ring-Dichtung ausgebildete Ringdichtung am Motorelement, konkret am Innenumfang einer Auf- nahmeöffnung (Ausnehmung) für den Aktuator im Motorelement abstützt. In den Figuren sind gleiche Elemente und Elemente mit der gleichen Funktion mit den gleichen Bezugszeichen gekennzeichnet. In den Fig. 1 und 2 ist ein erstes Ausführungsbeispiel einer Nockenwellen- verstellvorrichtung 1 in einer ausschnittsweisen Darstellung gezeigt. Zu erkennen ist ein Motorelement 2, beispielsweise ein Gehäuse eines Motoranbauteils oder unmittelbar ein Motorgehäuse sowie ein Aktuator 3, der in seinem Inneren in an sich bekannter Weise eine bestrombare Wicklung aufweist, die über eine Anschlussbuchse 4 bestrombar ist. Durch Bestro- men der Wicklung ist ein innerhalb des Aktuators 3 vorgesehener Anker (nicht gezeigt) entlang einer Verstellachse 5 axial verstellbar. Actuator of a camshaft adjusting device, wherein the actuator is supported in the radial direction via a designed as a conventional O-ring seal ring seal on the motor element, specifically on the inner circumference of a receiving opening (recess) for the actuator in the motor element. In the figures, like elements and elements having the same function are denoted by the same reference numerals. 1 and 2, a first embodiment of a camshaft adjusting device 1 is shown in a fragmentary view. Evident is a motor element 2, for example, a housing of a motor attachment or directly a motor housing and an actuator 3, which in its interior in a known manner has a bestrombare winding in its interior, which can be powered via a connector socket 4. By energizing the winding, an armature (not shown) provided inside the actuator 3 is axially adjustable along an adjustment axis 5.
Die Verstellachse 5 erstreckt sich in dem gezeigten Ausführungsbeispiel senkrecht zur Flächenerstreckung einer Oberseite 6 des Aktuators 3, sowie senkrecht zu einer Längserstreckung der Anschlussbuchse 5. The adjustment axis 5 extends in the embodiment shown perpendicular to the surface extension of an upper side 6 of the actuator 3, as well as perpendicular to a longitudinal extension of the connection socket. 5
Im Hinblick auf eine mögliche Ausgestaltung des inneren Aufbaus des Aktuators wird auf die DE 20 2010 007 406 U1 verwiesen. Bevorzugt ist dem Anker stirnseitig eine Kugel zugeordnet, mit welcher sich der Anker auf dem rotierenden Hydraulikventil abstützen kann. With regard to a possible embodiment of the internal structure of the actuator, reference is made to DE 20 2010 007 406 U1. Preferably, the armature frontally associated with a ball, with which the armature can be supported on the rotating hydraulic valve.
Wie sich aus einer Zusammenschau der Fig. 1 und 2 ergibt, kann der Aktuator 3 in einer reinen translatorischen Steckbewegung entlang der Ver- stellachse 5 des Aktuators 3 aus der in der Fig. 1 gezeigten Position in die in Fig. 2 gezeigte Montageposition 7 überführt werden, in welcher der Aktuator 3 gegen ein Verdrehen in Umfangsrichtung am Motorelement 2 mit Hilfe von Formschlussmitteln 8 gesichert ist. In dem gezeigten Ausführungsbeispiel umfassen die Formschlussmittel zwei gegenüberliegende Paare von in Umfangsrichtung um die Verstell- achse 5 beabstandeten Gegenelementen 9, 10 am Motorelement sowie zwei diametral gegenüberliegende Formschlusselemente 1 1 , wobei jedes Formschlusselement 1 1 in der in Fig. 2 gezeigten Montageposition zwischen zwei Gegenelementen 9, 10 des Motorelementes 2 aufgenommen und somit gegen ein Verdrehen gesichert ist. Bei der Montagebewegung handelt es sich nicht um eine Steck-Dreh-Bewegung, sondern um eine reine Steckbewegung entlang der Verstellachse 5 des Aktuators 3, betrachtet in der Montageposition 7. In der Montageposition wird der Aktuator 3 mit Hilfe von hier beispielhaft als Federstreifen ausgebildeten Federmitteln 12 axial in der Montagerichtung verspannt gegen das Motorelement 2. Gleichzeitig wird der Aktuator 3 verriegelt, indem ein Demontageweg, der dem translatorischen Montageweg entgegengerichtet wird, von den Federmitteln versperrt wird, wenn diese sich, wie in Fig. 2 anhand der in der Zeichnungsebene rechten Federmittel 12 gezeigt in einer Sicherungsposition 13 befinden. In diese Sicherungsposition können die Federmittel, wie in der Zeichnungsebene gemäß Fig. 2 links angedeutet hineinverschoben werden. Dabei durchsetzen die Federmittel 12 die Gegenelemente 9 und ragen in die Gegenele- mente 10 hinein und übergreifen dabei (alternativ beispielsweise durchsetzen) die Formschlusselemente 1 1. An diesen stützen sich die Federmittel 12 in der Sicherungsposition in axialer Richtung ab. As can be seen from a combination of FIGS. 1 and 2, the actuator 3 can be transferred from the position shown in FIG. 1 into the assembly position 7 shown in FIG. 2 in a pure translatory plugging movement along the adjustment axis 5 of the actuator 3 be, in which the actuator 3 is secured against rotation in the circumferential direction on the motor element 2 by means of positive locking means 8. In the embodiment shown, the positive locking means comprise two opposing pairs of circumferentially about the Verstellungs- Axis 5 spaced counter-elements 9, 10 on the motor element and two diametrically opposed form-locking elements 1 1, each positive-locking element 1 1 is added in the mounting position shown in Fig. 2 between two counter-elements 9, 10 of the motor element 2 and thus secured against rotation. In the assembly movement is not a plug-in rotary movement, but a pure insertion movement along the adjustment axis 5 of the actuator 3, viewed in the mounting position 7. In the mounting position of the actuator 3 by means of example here as spring strips formed spring means At the same time the actuator 3 is locked by a disassembly path, which is directed opposite to the translatory assembly path, is blocked by the spring means, if this, as in Fig. 2 on the basis of the right in the drawing plane Spring means 12 are shown in a securing position 13. In this securing position, the spring means, as indicated in the drawing plane of FIG. 2 on the left can be moved. In this case, the spring means 12 pass through the counter-elements 9 and protrude into the counter-elements 10 and thereby (alternatively, for example, enforce) engage the interlocking elements 1 1. At these, the spring means 12 are supported in the securing position in the axial direction.
Die streifenförmigen Federmittel 12 umfassen jeweils einen Anschlag 14 zur Begrenzung der Fixierbewegung der Federmittel 12. Wie sich aus Fig. 2 ergibt, wird vorgenannte Fixierbewegung in einer sich senkrecht zur Verstellachse 5 des Ankers erstreckenden Ebene realisiert, in dem konkreten Ausführungsbeispiel im Rahmen einer translatorischen Steckbewegung. Der mit dem Bezugszeichen 14 gekennzeichnete Abschnitt der Federmittel 12, welcher winklig zur Längserstreckung des Streifens angeordnet ist kann zusätzlich oder alternativ zur Anschlagsfunktion eine Grifffunktion haben, also als Grifffläche bzw. Griffabschnitt zur erleichterten Montage und Demontage dienen. In diesem Fall ist es bevorzugt, wenn der Anschlag am Motorelement ausgebildet ist, um die Montagebewegung definiert zu begrenzen. The strip-shaped spring means 12 each comprise a stop 14 for limiting the fixing movement of the spring means 12. As is apparent from Fig. 2, the aforementioned fixing movement is realized in a direction perpendicular to the adjustment axis 5 of the armature extending level, in the concrete embodiment in the context of a translatory plug movement , The designated by the reference numeral 14 portion of the spring means 12, which is arranged at an angle to the longitudinal extent of the strip may additionally or alternatively to the stop function have a handle function, ie serve as a grip surface or handle portion for easier assembly and disassembly. In this case, it is preferable if the stop is formed on the motor element in order to limit the assembly movement defined.
Bei dem Ausführungsbeispiel gemäß den Fig. 3 und 4 ist der Aktuator 3 ebenfalls in einer reinen Steckbewegung montierbar, wobei bei dem Ausführungsbeispiel gemäß Fig. 3 und 4 Formschlusselemente 1 1 am Motorelement 2 vorgesehen sind und in der Montageposition umgriffen werden von Gegenelementabschnitten 15, 16 des Aktuators 3, um somit in der Montageposition eine Rotation des Aktuators 3 um die Verstellachse 5 des Ankers relativ zum Motorelement 2 sicher zu verhindern. In the embodiment according to FIGS. 3 and 4, the actuator 3 is also mounted in a pure plugging movement, wherein in the embodiment of FIGS. 3 and 4 form-fitting elements 1 1 are provided on the motor element 2 and are encompassed in the mounting position of counter-element sections 15, 16th of the actuator 3, so as to prevent in the mounting position, a rotation of the actuator 3 about the adjustment axis 5 of the armature relative to the motor element 2 safely.
In der Montageposition können die ebenfalls hier beispielhaft streifenförmigen Federmittel 12 in eine in Fig. 4 der Zeichnungsebene links dargestellte Sicherungsposition überführt werden durch eine rein translatorische Bewegung in einer sich senkrecht zur Verstellachse 5 erstreckenden Ebene, wobei die Federmittel 12 die Formschlusselemente 1 1 des Aktuators 3 durchsetzen und sich axial an den Gegenelementen 15, 16 abstützen. In the mounting position, the likewise exemplarily strip-shaped spring means 12 can be converted into a securing position shown on the left in FIG. 4 by a purely translational movement in a plane extending perpendicular to the adjustment axis 5, wherein the spring means 12, the positive-locking elements 1 1 of the actuator. 3 enforce and axially supported on the counter-elements 15, 16.
Zu erkennen ist, dass die Federmittel 12 bei ihrer translatorischen Ver- Stellbewegung in die Sicherungsposition geführt sind, durch eine entsprechende Ausgestaltung der Gegenelemente 15, 16. Gleichzeitig wird auch der Aktuator 3 bei in seiner translatorischen Montagebewegung entlang der Verstellachse 5 axial geführt, sobald die Formschlussmittel bereits vor Erreichen der Montageposition gemäß Fig. 4 zusammenwirken. In den Fig. 5 und 6 ist eine Schnittansicht einer Montagesituation gezeigt. Zu erkennen ist der Aktuator 3 sowie das Motorelement 2. Vom Motorelement 2 ragt ein Formschlusselement 1 1 parallel zur Verstellachse 5 in Richtung Aktuator 3 und ist umgeben von Gegenelementabschnitten 15, 16 des Aktuators 3. Das Formschlusselement 1 1 weist einen sich senkrecht zur Längserstreckung der Verstellachse 5 erstreckenden Durchbruch 17 auf, der in der in Fig. 6 gezeigten Sicherungsposition der Federmittel 12 von diesen durchgriffen wird. Zu erkennen ist dass die Federmittel 12 in der Montageposition den Aktuator 3 axial bezogen auf die Verstellachse 5 auf das Motorelement 2 federkraft beaufschlagen. It can be seen that the spring means 12 are guided in their translational Ver-displacement movement in the securing position, by a corresponding configuration of the counter-elements 15, 16. At the same time, the actuator 3 is axially guided in its translational assembly movement along the adjustment axis 5, as soon as Positive locking means cooperate before reaching the mounting position shown in FIG. 4. FIGS. 5 and 6 show a sectional view of a mounting situation. From the motor element 2 protrudes a positive locking element 1 1 parallel to the adjustment axis 5 in the direction of the actuator 3 and is surrounded by mating element sections 15, 16 of the actuator 3. The interlocking element 1 1 has a perpendicular to the longitudinal extent of Adjusting axis 5 extending aperture 17 which is penetrated in the shown in Fig. 6 securing position of the spring means 12 of these. It can be seen that the spring means 12 act in the mounting position, the actuator 3 axially relative to the adjustment axis 5 to the motor element 2 spring force.
Bei dem Ausführungsbeispiel gemäß Fig. 7 sind die Federmittel 12 ebenfalls streifenförmig ausgestaltet, jedoch werden diese in eine Rotationsbewegung gezwungen, wenn diese in die Sicherungsposition, wie diese in der Zeichnungsebene rechts dargestellt ist überführt werden. In der Sicherungsposition durchgreifen die Federmittel 12 hier beispielhaft jeweils ein Formschlusselement 11 des Motorelements 2. In the embodiment shown in FIG. 7, the spring means 12 are also configured strip-shaped, but these are forced into a rotational movement when they are transferred to the securing position, as shown in the drawing plane right. In the securing position, the spring means 12 here by way of example in each case pass through a positive-locking element 11 of the motor element 2.
Bei dem Ausführungsbeispiel gemäß Fig. 8 umfassen die Federmittel 12 zwei streifenförmige Federabschnitte, die über einen Verbindungsabschnitt 18 miteinander verbunden sind, der in dem gezeigten Ausführungsbeispiel gebogen ausgebildet ist, um somit den Aktuator 3 zu umrunden. In the embodiment according to FIG. 8, the spring means 12 comprise two strip-shaped spring sections, which are connected to one another via a connecting section 18, which is bent in the embodiment shown, in order thus to circumnavigate the actuator 3.
In dem konkreten Ausführungsbeispiel ist der Verbindungsabschnitt 13 einteilig mit den Federabschnitten ausgebildet, wobei es sich bevorzugt bei den Federmitteln 12 um ein Stanzbiegeteil handelt. Durch die einteilige Ausgestaltung bzw. durch das miteinander Verbinden von zwei Federstreifen bzw. Federabschnitten können die gesamten Federmittel 12 in einer gemeinsamen Fixierbewegung in die in Fig. 8 gezeigte Sicherungsposition überführt werden. Bei dem Ausführungsbeispiel gemäß Fig. 9 sind ebenfalls wieder zwei einteilig ausgebildete bzw. miteinander verbundene Federabschnitte vorgesehen, wobei hier jedoch der Verbindungsabschnitt 18 gerade in der Art eines abgewinkelten Griffes ausgestaltet ist. In the specific embodiment, the connecting portion 13 is formed integrally with the spring portions, wherein it is preferably in the spring means 12 is a stamped and bent part. Due to the one-piece configuration or by connecting two spring strips or spring sections together, the entire spring means 12 can be transferred in a common fixing movement in the securing position shown in Fig. 8. In the embodiment shown in FIG. 9, two integrally formed or interconnected spring sections are also again provided, in which case, however, the connecting portion 18 is designed just in the manner of an angled handle.
Bei dem Ausführungsbeispiel gemäß Fig. 10 umfassen die Federmittel 12 zwei rotatorisch verstellbare Federabschnitte, die über einen gebogenen Verbindungsabschnitt 18 miteinander verbunden sind, um somit die Rota- tions-Fixierbewegung beider Federabschnitte in einer gemeinsamen Be- wegung realisieren zu können. In the exemplary embodiment according to FIG. 10, the spring means 12 comprise two rotatably adjustable spring sections, which are connected to one another via a bent connecting section 18, so as to be able to realize the rotational fixing movement of both spring sections in a common movement.
Bei dem Ausführungsbeispiel gemäß Fig. 11 bis 13 umfassen die Federmittel 12 einen Hauptfederabschnitt 19 sowie einen beispielhaft parallel dazu verlaufenden Nebenfederabschnitt 20. Der Hauptfederabschnitt 19 hat, wie sich aus Fig. 13 ergibt, die Aufgabe in der gezeigten Sicherungsposition den Aktuator 3 gegen das Motorelement 2 zu verspannen, während der Nebenfederabschnitt 20, wie sich aus Fig. 12 ergibt, die Federmittel 12 in einer Vormontageposition am Aktuator 3 verspannend sichert. Hierzu greift der Nebenfederabschnitt 20 in eine entsprechende Durch- gangsöffnung des Aktuators 3 ein. In the embodiment according to FIGS. 11 to 13, the spring means 12 comprise a main spring section 19 and a secondary spring section 20 running as an example. The main spring section 19 has, as shown in FIG. 13, the task in the illustrated securing position of the actuator 3 against the motor element 2, while the secondary spring portion 20, as is apparent from Fig. 12, the spring means 12 in a pre-assembly position on the actuator 3 ensures captive. For this purpose, the secondary spring section 20 engages in a corresponding passage opening of the actuator 3.
In der Fig. 13 gezeigten Montagesicherungsposition ist ein Federbügel 21 bzw. eine Federerhebung 21 des Nebenfederabschnitts 20 vollständig durch vorgenannte Ausnehmung hindurchgeschoben und hat somit keine oder kaum noch Federwirkung, während der Hauptfederabschnitt 19 mit seiner Federwirkung den Aktuator 3 vollfederkraftbeaufschlagt und gleichzeitig den Aktuator 3 gegen ein translatorisches Entnehmen entgegen der translatorischen Montagerichtung am Motorelement 2 sichert. Aus den Fig. 1 1 bis 13 ist zudem zu erkennen, dass der Nebenfederabschnitt 20 wesentlich filigraner, im konkreten Ausführungsbeispiel schma- ler ausgestaltet ist, als der Hauptfederabschnitt 19. Darüber hinaus sind die Federerhebungen 21 in Richtung der Längserstreckung der Federmittel 12 versetzt angeordnet. Bei dem Ausführungsbeispiel gemäß den Fig. 14 bis 16 sind die Federmittel 12 als Federklammern mit zwei zumindest näherungsweise parallelen Längsabschnitten ausgebildet. Die Federmittel 12 können durch Verklemmen am Aktuator 3 in einer Vormontageposition gehalten werden, wie dies in Fig. 15 gezeigt ist. Hierzu greifen die Federmittel in eine Öffnung 22 im Aktuator 3 ein. Nach dem Überführen des Aktuator 3 in die Montageposition können die Federmittel 12 in die in Fig. 16 gezeigte Sicherungsposition überführt werden, wobei sie hier beispielhaft in dieser Sicherungsposition Formschlusselemente 1 1 des Motorelementes 2 in Richtung ihrer Längserstreckung durchsetzen und somit den Aktuator 3 gegen eine translatorische Entnahme verriegeln. In Fig. 14 ist zu erkennen, dass an die Formschlusselemente 1 1 Führungsabschnitte angeformt sind, um die klammerförmigen Federmittel 12 bei ihrer translatorischen Fixierbewegung zu führen. In Fig. 17 ist eine Ausführungsform einer Nockenwellenverstellvorrichtung 1 bzw. eines Aktuators 3 derselben gezeigt, bei welchem die hier beispielhaft streifenförmigen Federmittel 12, wie sich in der Zeichnungsebene unten ergibt, in einer Vormontageposition formschlüssig am Aktuator 3 gesichert sind, und zwar indem eine Erhebung 23 des Aktuators 3, die sich auf einer Führungs- bzw. Abstützfläche für die Federmittel 12 befindet in eine Öffnung 24 in den Federmitteln 12 eingreift. In Fig. 13 Montagesicherungsposition shown a spring clip 21 and a spring survey 21 of the secondary spring section 20 is completely pushed through the aforementioned recess and thus has little or no spring action, while the main spring portion 19 with its spring action the actuator 3 vollfederkraftbeaufschlagt and simultaneously the actuator 3 against ensures a translational removal against the translational mounting direction on the motor element 2. It can also be seen from FIGS. 11 to 13 that the secondary spring section 20 is substantially more filigree, in the specific embodiment narrower. In addition, the spring elevations 21 are arranged offset in the direction of the longitudinal extension of the spring means 12. In the embodiment according to FIGS. 14 to 16, the spring means 12 are designed as spring clips with two at least approximately parallel longitudinal sections. The spring means 12 can be held in a pre-assembly position by clamping on the actuator 3, as shown in Fig. 15. For this purpose, the spring means engage in an opening 22 in the actuator 3 a. After the transfer of the actuator 3 in the mounting position, the spring means 12 can be transferred to the securing position shown in FIG. 16, where they enforce here exemplary in this safety position positive locking elements 1 1 of the motor element 2 in the direction of its longitudinal extension and thus the actuator 3 against a translational Lock removal. In Fig. 14 it can be seen that 1 1 guide portions are integrally formed on the interlocking elements to guide the staple-shaped spring means 12 in their translatory fixing movement. In Fig. 17, an embodiment of a camshaft adjusting device 1 and an actuator 3 thereof is shown, in which the example here strip-shaped spring means 12, as shown in the drawing plane below, are secured in a pre-assembly position positively on the actuator 3, by a survey 23 of the actuator 3, which is located on a guide or support surface for the spring means 12 engages in an opening 24 in the spring means 12.
In Fig. 18 ist eine generische Einbausituation eines Aktuators einer erfindungsgemäßen Nockenwellenverstellvorrichtung exemplarisch gezeigt, wie sie bei sämtlichen zuvor beschriebenen Ausführungsbeispielen realisierbar, jedoch aus Übersichtlichkeitsgründen dort im Detail nicht gezeigt ist. Zu erkennen ist, dass umfangsseitig am Aktuator 3 in einer seitlichen Umfangsnut 25 eine als herkömmliche O-Ring-Dichtung ausgebildete Ringdichtung 26 aufgenommen ist, die in der Einbausituation in radialer Richtung kraftbeaufschlagt ist und sich dabei radial innen am Nutgrund der Umfangsnut sowie am Innenumfang 27 einer Aufnahmeöffnung im Motorelement 2 für den Aktuator 3 abstützt. Da die Montage des Aktuators 3 in einer reinen Steckbewegung erfolgt, wird die Ringdichtung 26 weder bei der Montage noch bei der Demontage in Umfangsrichtung um die Verstellachse 5 des Aktuator-Ankers herum kraftbeaufschlagt. Bei der Monta- ge wird die Ringdichtung 26 entlang einer Fase bzw. Einführschräge 28 der Aufnahmeöffnung am Motorelement 2 bewegt, wodurch eine Radialkraftkomponente auf die Ringdichtung 26 erzeugt wird. FIG. 18 shows by way of example a generic installation situation of an actuator of a camshaft adjusting device according to the invention, as it can be implemented in all of the embodiments described above, but not shown there in detail for reasons of clarity is. It can be seen that circumferentially on the actuator 3 in a lateral circumferential groove 25 formed as a conventional O-ring seal ring seal 26 is received, which is subjected to force in the installation situation in the radial direction and thereby radially inward on the groove bottom of the circumferential groove and the inner circumference 27th a receiving opening in the motor element 2 for the actuator 3 is supported. Since the assembly of the actuator 3 is carried out in a pure insertion movement, the ring seal 26 is subjected to force either during assembly or disassembly in the circumferential direction about the adjustment axis 5 of the actuator armature. During assembly, the annular seal 26 is moved along a chamfer or insertion bevel 28 of the receiving opening on the motor element 2, whereby a radial force component is generated on the annular seal 26.
Bezugszeichen reference numeral
1 Nockenwellenverstellvorrichtung1 camshaft adjusting device
2 Motorelement 2 engine element
3 Aktuator  3 actuator
4 Anschlussbuchse  4 connection socket
5 Verstellachse des Aktuator-Ankers 5 adjustment axis of the actuator armature
6 Oberseite des Aktuators 6 Top of the actuator
7 Montageposition  7 mounting position
8 Formschlussmittel  8 positive locking means
9, 10 Gegenelemente  9, 10 counter elements
1 1 Formschlusselement  1 1 positive locking element
12 Federmittel  12 spring means
13 Sicherungsposition  13 securing position
14 Anschlag  14 stop
15, 16 Gegenelemente  15, 16 counter elements
17 Durchbruch  17 breakthrough
18 Verbindungsabschnitt  18 connection section
19 Hauptfederabschnitt  19 main spring section
20 Nebenfederabschnitt  20 secondary spring section
21 Federbügel  21 spring clip
22 Öffnung  22 opening
23 Erhebung  23 survey
24 Öffnung  24 opening
25 Umfangsnut  25 circumferential groove
26 Ringdichtung  26 ring seal
27 Innenumfang  27 inner circumference
28 Einführschräge  28 insertion bevel

Claims

Patentansprüche claims
1. Nockenwellenverstellvorrichtung umfassend einen elektromagnetischen Aktuator (3) mit einem entlang einer Verstellachse (5) axial verstellbaren Anker zur Betätigung eines hydraulischen Ventils zur Nockenverstellung, sowie Befestigungsmittel zum Festlegen des Aktuators (3) an einem Motorelement (3), wobei die Befestigungsmittel Federmittel (12) umfassen, die in einer Sicherungsposition (13) den Aktuator (3) gegen das Motorelement (2) verspannen, dadurch gekennzeichnet, dass die Befestigungsmittel Formschlussmittel (8) als Verdrehsicherung zum Verhindern einer Verdrehbewegung des Aktuators (3) in einer Montageposition (7) relativ zu dem Motorelement (2) aufweisen, die so ausgebildet und angeordnet sind, dass der Aktuator (3) durch eine reine translatorische Montagebewegung auf das Motorelement (2) zu, insbesondere entlang der Verstellachse (5) des Ankers in die Montageposition (7) verstellbar ist, und dass die Federmittel (12) in der Sicherungsposition (13) einen Demontageweg für eine der Montagebewegung entgegengesetzte, rein translatorische Demontagebewegung des Aktuators (3) derart versperren, dass dieser nicht entgegen der rein translatorischen Montagerichtung demontierbar ist. 1. Camshaft adjusting device comprising an electromagnetic actuator (3) with an adjusting axis (5) axially adjustable armature for actuating a hydraulic valve for adjusting the cam, and fastening means for fixing the actuator (3) on a motor element (3), wherein the fastening means spring means ( 12) which clamp the actuator (3) against the motor element (2) in a securing position (13), characterized in that the fastening means comprise positive locking means (8) for preventing rotation of the actuator (3) in a mounting position (7 ) relative to the motor element (2), which are designed and arranged such that the actuator (3) by a pure translational mounting movement on the motor element (2), in particular along the adjustment axis (5) of the armature in the mounting position (7 ) Is adjustable, and that the spring means (12) in the securing position (13) a disassembly path for a e obstruct the assembly movement opposite, purely translational disassembly movement of the actuator (3) such that it is not contrary to the purely translational mounting direction disassembled.
2. Nockenwellenverstellvorrichtung nach Anspruch 1 , 2. camshaft adjusting device according to claim 1,
dadurch gekennzeichnet,  characterized,
dass Aktuator (3), insbesondere mittels der Formschlussmittel (8), bei seiner translatorischen Montagebewegung axial geführt ist. Nockenwellenverstellvorrichtung nach einem der Ansprüche 1 oderin that the actuator (3), in particular by means of the positive locking means (8), is guided axially during its translatory assembly movement. Camshaft adjusting device according to one of claims 1 or
2, 2,
dadurch gekennzeichnet, characterized,
dass die Formschlussmittel (8) mindestens ein sich parallel zur Verstellachse (5) erstreckendes Formschlusselement (1 1 ) am Ak- tuator (3) aufweisen, dass in der Montageposition (7) jeweils von zwei in einer Umfangsrichtung um die Verstellachse (5) beabstan- deten und sich parallel zur Verstellachse (5) erstreckenden Gegenelementen (15, 16) oder Gegenelementabschnitten des Motorelementes (2) aufgenommen ist, die eine sich parallel zur Verstellachse (5) erstreckende Montageöffnung begrenzen und/oder dass die Formschlussmittel (8) mindestens ein sich parallel zur Verstellachse (5) erstreckendes Formschlusselement (1 1 ) am Motorelement aufweisen, dass in der Montageposition (7) jeweils von zwei in einer Umfangsrichtung um die Verstellachse (5) beabstandeten und sich parallel zur Verstellachse (5) erstreckenden Gegenelementen (15, 16) oder Gegenelementabschnitten des Aktuators (3) aufgenommen ist, die eine sich parallel zur Verstellachse (5) erstreckende Montageöffnung begrenzen. in that the interlocking means (8) have at least one interlocking element (11) extending parallel to the adjustment axis (5) on the actuator (3) that in the assembly position (7) projects two each in a circumferential direction about the adjustment axis (5) - Deten and parallel to the adjustment axis (5) extending counter elements (15, 16) or counter element sections of the motor element (2) is received, which limit a parallel to the adjustment (5) extending mounting hole and / or that the positive locking means (8) at least one have in the mounting position (7) each of two in a circumferential direction about the adjustment axis (5) spaced and parallel to the adjustment axis (5) extending counter elements (15, 16) or counter element sections of the actuator (3) is accommodated, which delimit a mounting opening parallel to the adjustment axis (5).
Nockenwellenverstellvorrichtung nach einem der vorhergehenden Ansprüche, Camshaft adjusting device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass die Federmittel (12) in der Sicherungsposition (13) die Formschlussmittel (8), insbesondere das Formschlusselement (11 ) und/oder die Gegenelemente (15, 16) oder Gegenelementabschnit- te durchsetzen oder zumindest in eine Aufnahmeöffnung des Formschlusselementes (1 1) oder mindestens eines Gegenelementes (15, 16) oder mindestens eines Gegenelementabschnittes eingreifen. Nockenwellenverstellvorrichtung nach einem der vorhergehenden Ansprüche, in that the spring means (12) in the securing position (13) pass through the positive locking means (8), in particular the positive locking element (11) and / or the counter elements (15, 16) or counter element sections or at least into a receiving opening of the positive locking element (11). or engage at least one counter-element (15, 16) or at least one counter-element section. Camshaft adjusting device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass die, bevorzugt als Stanz-Biegeteil ausgebildeten Federmittel, (12) in einer translatorischen oder rotatorischen Fixierbewegung in die Sicherungsposition (13) überführbar sind. in that the spring means (12), preferably designed as a stamped and bent part, can be transferred into the securing position (13) in a translatory or rotational fixing movement.
Nockenwellenverstellvorrichtung nach Anspruch 5, Camshaft adjusting device according to claim 5,
dadurch gekennzeichnet, characterized,
dass die translatorische oder rotatorische Fixierbewegung in einer sich winklig, insbesondere senkrecht, zur Verstellachse (5) und damit zur Montage- und Demontagerichtung erstreckenden Fixierebene ausführbar ist. in that the translatory or rotational fixing movement can be carried out in a fixing plane which extends at an angle, in particular perpendicularly, to the adjustment axis (5) and thus to the assembly and disassembly direction.
Nockenwellenverstellvorrichtung nach einem der vorhergehenden Ansprüche, Camshaft adjusting device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass die Federmittel (12) einen, insbesondere metallischen, Federstreifen oder eine Federklammer umfassen, der bzw. die senkrecht zu seiner bzw. ihrer Längs- oder Umfangserstreckung, insbesondere durch das Vorsehen einer Biegung, federnd ausgebildet ist und/oder dass zwei, insbesondere metallische, Federstreifen oder Federklammern der Federmittel (12), insbesondere einteilig, über einen Verbindungsabschnitt (12) verbunden sind, um die Federstreifen bzw. Federklammern in einer gemeinsamen Fixierbewegung in die Sicherungsposition (13) überführen zu können. Nockenwellenverstellvorrichtung nach einem der vorhergehenden Ansprüche, in that the spring means (12) comprise a, in particular metallic, spring strip or a spring clip, which is designed to be resilient perpendicular to its or its longitudinal or circumferential extension, in particular by providing a bend, and / or two, in particular metallic , Spring strips or spring clips of the spring means (12), in particular in one piece, via a connecting portion (12) are connected in order to convert the spring strips or spring clips in a common fixing movement in the securing position (13) can. Camshaft adjusting device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass die Federmittel (12), insbesondere in einer Ausnehmung, des Aktuators (3) vormontierbar und in der Montageposition (7) des Ak- tuators (3) aus einer Vormontageposition in die Sicherungsposition (13) überführbar sind. in that the spring means (12), in particular in a recess, of the actuator (3) can be premounted and in the assembly position (7) of the actuator (3) can be transferred from a pre-assembly position into the securing position (13).
Nockenwellenverstellvorrichtung nach einem der vorhergehenden Ansprüche, Camshaft adjusting device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass die Federmittel (12) einen Hauptfederabschnitt (19) zum Verspannen des Aktuators (3) gegen das Motorelement (2) und einen Nebenfederabschnitt (20) zum Halten der Federmittel (12) in einer Vormontageposition am Aktuator (3) aufweisen, und dass bevorzugt der Nebenfederabschnitt (20) so ausgebildet und/oder angeordnet ist, dass dieser in der Sicherungsposition (13) der Federmittel (12) den Aktuator (3) nicht oder mit einer geringeren Federkraft gegen das Motorelement verspannt als der Hauptfederabschnitt (19). in that the spring means (12) has a main spring section (19) for clamping the actuator (3) against the motor element (2) and a secondary spring section (20) for holding the spring means (12) in a preassembly position on the actuator (3), and that is preferred the secondary spring section (20) is designed and / or arranged such that in the securing position (13) of the spring means (12) it does not clamp the actuator (3) or with a smaller spring force against the motor element than the main spring section (19).
Nockenwellenverstellvorrichtung nach einem der vorhergehenden Ansprüche, Camshaft adjusting device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass die Federmittel (12) einen Anschlag (14), insbesondere in Form eines abgewinkelten Endabschnittes, zur Begrenzung von deren Fixierbewegung und/oder eine, insbesondere abgewinkelte, Grifffläche zur erleichterten Montage und Demontage aufweisen. Nockenwellenverstellvorrichtung nach einem der vorhergehenden Ansprüche, the spring means (12) have a stop (14), in particular in the form of an angled end section, for limiting its fixing movement and / or a, in particular angled, gripping surface for facilitated assembly and disassembly. Camshaft adjusting device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass die Federmittel (12) eine Öffnung oder Vertiefung zum verrastenden Zusammenwirken mit einer Erhebung 23 des Aktuators (3) oder des Motorelementes (2) aufweisen. in that the spring means (12) have an opening or recess for latching cooperation with an elevation 23 of the actuator (3) or of the motor element (2).
Nockenwellenverstellvorrichtung nach einem der vorhergehenden Ansprüche, Camshaft adjusting device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass an dem Akuator (3), insbesondere in einer umfangsseitigen und nach radial außen offenen Nut, vorzugsweise Umfangsnut, eine, bevorzugt als O-Ring-Dichtung ausgebildete, Ringdichtung (26) aufgenommen ist, die bei der Montage, der Demontage und im montierten Zustand des Aktuators (3) ausschließlich in axialer und radialer Richtung, vorzugsweise nicht in Umfangsrichtung, kraftbelastet ist. that on the Akuator (3), in particular in a circumferential and radially outwardly open groove, preferably circumferential groove, a, preferably designed as an O-ring seal, ring seal (26) is received, which during assembly, disassembly and mounted State of the actuator (3) exclusively in the axial and radial directions, preferably not in the circumferential direction, is force-loaded.
Verbrennungsmotor mit einer Nockenwellenverstellvorrichtung (1 ) nach einem der vorhergehenden Ansprüche. Internal combustion engine with a camshaft adjusting device (1) according to one of the preceding claims.
Montageverfahren für eine Nockenwellenverstellvorrichtung (1 ) nach einem der Ansprüche 1 bis 12, Assembly method for a camshaft adjusting device (1) according to one of claims 1 to 12,
dadurch gekennzeichnet, characterized,
dass der Aktuator (3) in einer, insbesondere reinen, translatorischen Montagebewegung, vorzugsweise in Richtung der Verstellachse (5) des Ankers, in eine Montageposition (7) am Motorelement überführt wird, in der der Aktuator (3) mittels der Formschlussmittel (8) gegen ein Verdrehen relativ zu dem Motorelement gesichert ist, und dass die Federmittel (12) in eine Sicherungsposi- tion (13) überführt werden, in der diese den Aktuator (3) gegen das Motorelement verspannen und gleichzeitig einen dem translatorischen Montageweg des Aktuators (3) entlang der Verstellachse (5) des Ankers entgegengesetzten Demontageweg versperren und den Aktuator (3) sich gegen eine der translotorischen Montagebewegung des Aktuators (3) entgegengerichtete translatorische Demontagebewegung am Motorelement sichern. in that the actuator (3) is transferred in a, in particular pure, translatory assembly movement, preferably in the direction of the adjustment axis (5) of the armature, into a mounting position (7) on the motor element, in which the actuator (3) is connected by means of the positive locking means (8). is secured against twisting relative to the motor element, and that the spring means (12) in a securing position tion (13) are transferred, in which they clamp the actuator (3) against the motor element and at the same time blocking the translational assembly path of the actuator (3) along the adjustment axis (5) of the armature disassembly and the actuator (3) against a secure the translatory assembly movement of the actuator (3) in the opposite direction translational disassembly movement on the motor element.
Montageverfahren nach Anspruch 14, Mounting method according to claim 14,
dadurch gekennzeichnet, characterized,
dass zum Verspannen und Sichern des Aktuators (3) die Federmittel (12) aus einer Vormontageposition am Aktuator (3) in eine Sicherungsposition (13), insbesondere in einer translatorischen oder rotatorischen Fixierbewegung, überführt werden, insbesondere in einer sich winklig, vorzugsweise rechtwinklig, zur translatorischen Montagerichtung erstreckenden Fixierebene. in that, for clamping and securing the actuator (3), the spring means (12) are transferred from a pre-assembly position on the actuator (3) into a securing position (13), in particular in a translatory or rotational fixing movement, in particular at an angle, preferably at right angles, to the translational mounting direction extending fixing plane.
Montageverfahren nach einem der Ansprüche 14 oder 15, dadurch gekennzeichnet, Mounting method according to one of claims 14 or 15, characterized
dass eine am Aktuator (3) vorgesehene, vorzugsweise als O-Ring- Dichtung ausgebildete, Ringdichtung (26) bei der Montage ausschließlich in axialer Richtung und/oder in radialer Richtung, jedoch nicht in Umfangsrichtung kraftbelastet wird. in that a ring seal (26) provided on the actuator (3), preferably designed as an O-ring seal, is loaded with force during assembly exclusively in the axial direction and / or in the radial direction, but not in the circumferential direction.
EP14803070.3A 2013-12-20 2014-11-12 Camshaft adjusting device, combustion engine and assembly method Active EP3084153B1 (en)

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DE102006031517A1 (en) 2006-07-07 2008-01-10 Schaeffler Kg Switch mechanism for a hydraulic camshaft setting system, in an internal combustion motor, has an adjustment structure to correlate the actuator setting with the valve assembly
DE102007019923A1 (en) 2007-04-27 2008-10-30 Schaeffler Kg Cam Phaser System
DE102008051145B4 (en) 2008-10-09 2020-09-17 Schaeffler Technologies AG & Co. KG Belt-drive camshaft adjuster
DE102009020652B4 (en) 2009-05-08 2020-11-26 Thomas Magnete Gmbh Control actuator device
DE102010012917B4 (en) * 2009-10-05 2021-12-09 Schaeffler Technologies AG & Co. KG Camshaft adjusting device with an actuator which is fastened to a housing element by a fastening means
DE102009051310A1 (en) * 2009-10-29 2011-05-05 Schaeffler Technologies Gmbh & Co. Kg Fastening arrangement of a camshaft adjuster
DE102010008931A1 (en) * 2010-02-23 2011-08-25 Schaeffler Technologies GmbH & Co. KG, 91074 Camshaft adjusting device
DE102010003698B4 (en) 2010-04-08 2015-05-21 Man Diesel & Turbo Se Method for laying out the contour of a control cam
DE202010007406U1 (en) 2010-05-31 2011-09-28 Eto Magnetic Gmbh Stator assembly, camshaft adjuster and engine
DE102010047414A1 (en) 2010-10-02 2012-04-05 Daimler Ag Camshaft adjustment device has actuator for actuating camshaft adjuster, where base body and fixing unit are provided, and fixing unit has two locking elements interlocked into one another
DE202011050746U1 (en) * 2011-07-15 2012-10-25 Eto Magnetic Gmbh Statorbaueinheit and camshaft adjusting device with Statorbaueinheit
DE102012003648C5 (en) * 2012-02-24 2014-12-04 Thomas Magnete Gmbh Electromagnet with plug-in swivel attachment
CN102705028B (en) * 2012-05-24 2014-06-25 绵阳富临精工机械股份有限公司 Reset spring fixing device for cam phaser

Also Published As

Publication number Publication date
EP3084153B1 (en) 2017-03-08
US9909465B2 (en) 2018-03-06
CN105849372B (en) 2018-10-12
CN105849372A (en) 2016-08-10
US20170002700A1 (en) 2017-01-05
WO2015090741A1 (en) 2015-06-25
DE102013114625A1 (en) 2015-06-25

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