CN102410199B - The valve of valve, particularly hydraulic piston pump - Google Patents
The valve of valve, particularly hydraulic piston pump Download PDFInfo
- Publication number
- CN102410199B CN102410199B CN201110265701.4A CN201110265701A CN102410199B CN 102410199 B CN102410199 B CN 102410199B CN 201110265701 A CN201110265701 A CN 201110265701A CN 102410199 B CN102410199 B CN 102410199B
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- Prior art keywords
- valve
- closure body
- valve seat
- bridge
- spring
- Prior art date
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Links
- 238000007667 floating Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 35
- 238000007789 sealing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 3
- 229910000952 Be alloy Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1085—Valves; Arrangement of valves having means for limiting the opening height
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to a kind of valve (10), the particularly valve of hydraulic piston pump, the valve has：Valve seat (12), is configured with valve opening (14) in the valve seat and the valve seat has positive (26) and the back side (28)；Valve closure body (16), the valve closure body, which is arranged on the front of valve seat (12) (26), to be used to selectively open and close valve opening (14)；And return unit (24), the return unit is arranged on the front of valve seat (12) (26) and valve closure body (16) is pressed against on valve seat (12), and return unit (24) is configured to bridge-type spring (24).
Description
Technical field
The present invention relates to the valve of a kind of valve, particularly hydraulic piston pump, the valve has：Valve seat, is configured with the valve seat
The valve opening and valve seat has front and back；Valve closure body, the valve closure body, which is arranged on the front of valve seat, to be used to select
Open and close valve opening to property；And return unit, the return unit is arranged on the front of valve seat and is pressed against valve closure body
On valve seat.The invention further relates to a kind of hydraulic piston pump and a kind of motor vehicle braking system.
Background technology
The hydraulic piston pump of such as motor vehicle braking system generally has ball valve as inlet valve and dump valve, because ball valve
Manufacturing cost is relatively low.
This valve of ball valve form is generally arranged in valve chest, and the valve chest, which is clamped in, to be movable into and out in cylinder body
Piston on support on.Inlet valve is designed to, and can be incited somebody to action by means of the linear reciprocating motion of piston by suction apparatus
Fluid sucks the pressure span of cylinder interior.Hereafter, fluid is transported to by dump valve from pressure span is used under stress
In the hydraulic system of acting.
Valve chest is generally configured to cup-shaped as retainer, and spiral helicine back-moving spring is on its interior, described to reset
Spring is pressed against on spherical closure body.Therefore, spherical closure body is abutted on valve seat, and the valve seat is built into the end of piston
On face.
If piston is forced out by means of back-moving spring from cylinder body, due to producing negative pressure in cylinder body, inlet valve
Closure body overcomes the power of helical form back-moving spring to be lifted from valve seat.During this motion of piston, inlet valve is opened
And fluid is inhaled into pressure span by suction apparatus.
If piston is pressed into cylinder body by eccentric wheel, elastic force is overcome to be lifted by closure body there, inlet valve
Close and dump valve is opened.During fluid is transported to the hydraulic system for acting from pressure span.
DE 102008043841A1 disclose a kind of ball valve, particularly for fuel injection system high-pressure pump high pressure
Valve, the ball valve has valve sphere and valve seat, and wherein valve sphere interacts to form close fit with valve seat, to interrupt inflow entrance
Connection between outlet.Here, valve sphere is pressed against on valve seat by spiral helicine back-moving spring.
In addition, DE 102004028889A1 disclose a kind of piston pump for delivering hydraulic fluid, the piston pump has
Cylinder element, can in cylinder element reciprocating piston and piston chamber, can be by piston to liquid in the piston chamber
Fluid is pressed to apply pressure.In addition, piston pump includes dump valve and the inlet valve controlled by gap.In dump valve, valve sphere is made
It is pressed against for closure body by the back-moving spring of sheet on corresponding valve seat.
The content of the invention
A kind of valve, the particularly valve of hydraulic piston pump are provided according to the present invention, the valve has：Valve seat, the structure in the valve seat
Valve opening is made and the valve seat has front and back；Valve closure body, the valve closure body, which is arranged on the front of valve seat, to be used for
Selectively open and close valve opening；And return unit, the return unit is arranged on the front of valve seat and is pressed against closure body
On valve seat, wherein return unit is configured to bridge-type spring.
Hydraulic piston pump preferably includes cylindrical piston, and the piston is supported in the inner chamber of cylinder body in which may be moved in and out.
It is provided with the inner chamber of cylinder body and is sealed with the pressure span with fluid filling.When piston is removed from cylinder body, in pressure span
Middle generation negative pressure and piston draws fluid into pressure span by inlet valve.When moving into, piston is by dump valve by fluid
In the hydraulic system for acting being discharged into from pressure span.
Fluid is here understood as the hydraulic fluid of gas or hydraulic fluid, such as mineral oil base or ethylene glycol.
Advantageously, inlet valve and/or dump valve are the valves according to the present invention.Had according to the valve of the present invention：With valve opening
Valve seat, valve closure body and return unit, valve closure body is pressed against on valve seat by the return unit by reset force.Valve seat includes front
And the back side, wherein valve closure body and return unit be arranged on valve seat front on.The back side of valve seat is interpreted as fluid and flows into valve
The side in hole, and front is interpreted as the side that fluid flows out from valve opening.Valve closure body and return unit in the way of transmitting power that
This connection.Return unit makes every effort to valve closure body is pressed against on valve seat to and thus closed valve opening all the time.
During piston is removed from cylinder body, fluid by inlet valve is inhaled into pressure span due to the negative pressure of generation.Here,
Valve closure body overcomes the reset force applied by return unit or more specifically pressure is lifted the distance of one section of determination from valve seat,
And fluid passes through valve opening feed pressure region.During piston is removed from cylinder body, dump valve is in substantially close by fluid
The state of feud closing.
When piston moves into cylinder body, inlet valve is closed；Valve closure body is pressed on valve seat by return unit so that valve
Hole is in the state substantially closed with being fluid-tight.Due to the pressure produced in pressure span, the valve of dump valve is closed
Body overcomes the reset force of return unit to be lifted and valve opening is in open mode.Hereafter, fluid is from pressure span along dump valve stream
Enter the hydraulic system for acting.
According to the present invention, return unit is bridge-type spring.The bridge-type spring is in particularly constructed as elongated shape, more precisely
Ground say it is strip or sheet, and with the ends end regions in other words of two encirclements, one intermediate region.Bridge-type spring
It is crossed in the way of bridge on valve closure body and is horizontally-arranged at valve chest or the more specifically supporting of bonnet with two end regions
On face.
Bridge-type spring preferably includes three supporting-points node of power transmission in other words, i.e., on each end in other words end regions
There is one respectively and have one in so-called intermediate region between the end.Here, two on two ends
Node is preferably respectively used as a floating support, and the node being arranged between described two ends is used as fixed bearing or as solid
Fixed clamping device.
In fixed bearing, bridge-type spring is advantageously closed body position with valve and is permanently connected.In each end, bridge-type spring
It is preferred that loosely reclining on the bearing surface, for example abut in the case of the inlet valve on the step of valve retainer or in discharge
For example abutted on the step of bonnet in the case of valve.Therefore, the motion of bridge-type spring in the region of two floating supports
It is restricted and is restricted or in fixed clamping device in two frees degree in fixed bearing in one degree of freedom
In the case of be restricted on three degree of freedom.Bridge-type spring can also be placed on or be stuck on valve retainer or on bonnet, be entered
And pass through installing space pretension.Therefore simple pre-assembled can especially be realized.
Combine composition according to two bearing-surfaces of the bridge-type spring of the present invention with valve closure body and on end regions so-called
Mass-spring system.Power transmission node is also referred to as quality node in such a system, wherein be made up of two floating supports two
Individual quality node is with fixed bearing or adjacent with fixed clamping device by a bridge-type spring section.
If valve closure body due to generation suction in other words pressure and be lifted from valve seat, i.e., described suction is in other words
Pressure is more than the reset force of spring, then bridge-type camber of spring.Valve opening is opened and fluid can flow through valve.Here, bridge-type spring
Two end regions be pressed against on the bearing surface and middle quality node (in the quality node, spring and valve closure body
Connection) move one section of stroke determined.Here, this quality node absorbs the potential energy determined.That is, valve closure body from
When being lifted on valve seat, therefore return unit deforms according to the distance that valve closure body passes through.Under static state, spring closes valve
Body is pressed against on valve seat and substantially fluid tight closes valve opening.
The advantage of the invention is that：The closing of good Fluid Sealing is on the one hand ensure that according to the valve of the present invention, i.e., it is soft
Sum and excellent closing property, and also can quickly and accurately be responded when pressure very little.On the other hand, bridge-type bullet
The manufacturing cost of spring is relatively low and very little of conducting oneself with dignity；There is provided a kind of new valve, it need not be difficult to install, needs and be supported on
Spiral helicine back-moving spring in valve retainer.Due to the structure very simple of the valve according to the present invention, it can reduce and be produced into
This.
In addition, the installing space according to needed for the valve of the present invention is relatively small, because the spring of bridge-type form of springs only has
The size of very little.By reducing the installing space needed for so-called mass-spring system, the improvement of the function of valve is realized.Cause
This, can especially increase the structure space for pulsation damper, it is possible thereby to reduce the pressure fluctuation level of piston pump.
According to a kind of favourable improvement scheme of the valve according to the present invention, bridge-type spring is round bar, particularly spring wire.
Bridge-type spring is preferably made up of spring steel, for example, be made up of copper beryllium alloy.The form of bridge-type spring base in particular
Straight and elongated, diameter comparatively small bar or silk in sheet.
Be preferably designed for spring wire circle bar be crossed in the way of bridge valve closure body on the side of valve opening.
This, circle bar is fixedly supported on valve closure body by fixed bearing or fixed clamping device position.Circle bar is in two end
On loosely abut on the bearing-surface of valve chest or bonnet or be stuck in there.During valve closure body is lifted from valve seat, bullet
Spring is deformed according to the stroke that valve closure body passes through.
Therefore, in an advantageous manner there is provided a kind of return unit, its manufacturing cost it is very low and deadweight very little.
According to a kind of improvement project of replacement of the valve according to the present invention, bridge-type spring is leaf spring.
Alternatively, spring can be flat elongated flexural spring, such as leaf spring.Leaf spring is preferably by flat metal tape system
Into the metal tape is in arciformly by pretension.Leaf spring can be particularly easy to be arranged in valve.Here, spring is it is also preferred that by spring steel
Into being for example made up of copper beryllium alloy.
It is advantageously improved according to another in scheme, storing apparatus of the bridge-type spring-loaded on valve closure body.
Storing apparatus is closed body position with valve and is permanently connected, and is preferably made as the moulding with valve closure body one.Hold
Receive the form that device can be for example with step-like lug boss, the lug boss is preferably passed through by slot-shaped recess or transverse holes
Wear.
Storing apparatus be arranged on valve closure body on the surface of valve seat.Bridge-type spring can for example be caught in, is pressed into, press from both sides
Enter, insert or be only loosely put into slot-shaped recess or hole.Therefore, for bridge-type spring, storing apparatus may be used as
Fixed bearing or the clamping device of fixation.
If bridge-type spring is for example permanently connected with storing apparatus position, provide a preassembled component, i.e., by
The unit that valve closure body and bridge-type spring are constituted, the unit can be operated in itself.The component can be with valve seat with simple and low
The mode of cost is fitted together.
According to a kind of favourable improvement scheme of the valve according to the present invention, valve closure body includes stretching into the positioning member in valve opening
Part.
In this improvement project, be provided with the side towards valve opening of valve closure body one it is preferably cylindrical
Step part in other words, the step in other words this be partially received in the inside of valve opening.Setting element is preferably loosely put into valve opening
In.Here, the spaced apart from inner walls of setting element and valve opening and allow fluid in the case where valve closure body is lifted
Valve opening is flowed through between the inwall of valve opening and the outer wall of setting element.Setting element is preferably integrally formed with valve closure body.Therefore,
Valve closure body is freely supported by so that it is directed back on valve seat exactly in closing process.
Here, the purpose of setting element is, radially and/or axially with respect to valve seat or more specifically relative to
Valve opening is oriented to or positioned to valve closure body.
In order to be positioned radially relative to valve seat relative to valve opening to valve closure body and during stroke desired
Valve closure body is oriented in radial position, setting element especially has cylindrical step, the step is relatively closely tight
The inwall for suffering valve opening is set.If valve closure body is lifted during valve is opened from valve seat, setting element is to valve closure body
It is oriented to so that valve closure body radially will not substantially slide and occupy its initial position again in the closing process of valve.
In the case where carrying out axially position to valve closure body relative to valve seat, setting element especially has the circle of extension
Cylindricality step, compared with the situation of radial positioning, the step can loosely adjacent valve opening inwall set.The cylinder of extension
Step especially can protrude through valve opening and ensure that valve closure body is directed to when being lifted from valve seat in this way.
It is advantageously improved another in scheme, setting element includes buckle element, the buckle element is stuck in the back of the body of valve seat
On face.
Here, buckle element is elasticity and is preferably integrally formed with setting element.Therefore, valve closure body is arranged on
It is connected on the front of valve seat and by the setting element for protruding through valve opening with buckle element.Buckle element is preferably loosely set
Put on the back side of valve seat.
Valve closure body, which is not only, to be only loosely put into valve opening, and be it is anti-lose install there.Therefore, valve is closed
Body can constitute a preassembled component with valve seat, and the component easily can enter during the assembling process of hydraulic piston pump
Row operation.
It is preferred that by being designed to sufficiently long setting element, buckle element ensure in particular valve closure body can be from valve seat
On lift one section of predetermined stroke, and buckle element will not hinder or limit the stroke.That is, buckle element is excellent
Choosing will not play a part of applying valve closure body the back-moving spring of pulling force.
Buckle element is particularly designed to, and it is clipped on the back side of valve seat.Therefore, buckle element preferably includes two elasticity
The arm that ground is separated from each other.If buckle element is arranged on valve seat, buckle element is worn from the front insertion of valve seat
Cross valve opening.Here, the arm of elastic construction is pressed together.If buckle element has been arranged on the back side of valve seat, this two
Individual arm flexibly open and it is anti-lose valve closure body is maintained on valve seat.
According to a kind of favourable improvement scheme of the valve according to the present invention, valve closure body is moulding.
Especially, this improvement embodiment can integratedly be constructed with setting element and buckle element.It is this to be molded into
The plastic unit of type is because its shape can be particularly good pre-installed on valve seat and is installed in hydraulic piston pump.The modeling
Material unit is easy to other parts, particularly bridge-type spring assembling together in the fabrication process.In addition, this valve is robust
And can be manufactured with low cost.
According to another favourable improvement scheme of the valve according to the present invention, valve closure body is configured to tabular.
This valve has the valve closure body of tabular, compared with spherical valve closure body, the height and chi of the valve closure body
It is very little smaller.Because the height of this valve closure body is smaller, it is possible to achieve the inlet valve and/or dump valve of dead volume very little, by
This improves the efficiency of hydraulic piston pump.
Valve closure body can also be optionally the segment that intercept sphere i.e. one determines or spherical part, the work of a determination
For hemisphere or it is used as cone.
In addition, being achieved according to the purpose of the present invention by a kind of hydraulic piston pump of the valve with according to the present invention.
One cylinder body is included according to the hydraulic piston pump of the present invention and one is supported in cylinder body in which may be moved in and out
Piston.The pressure span with fluid filling is configured with the inner chamber of cylinder body.When piston is removed from cylinder body, in pressure span
Produce negative pressure and piston draws fluid into pressure span by inlet valve.On the contrary, when moving into, fluid is passed through row by piston
Go out during valve is discharged into the hydraulic system for acting from pressure span.
Inlet valve and dump valve are advantageously configured to according to the present invention according to preceding feature and the valve of advantage.This valve
On the one hand high robustness and good sealing characteristics be ensure that.On the other hand, the manufacturing cost of this valve is low and is easily integrated
Into hydraulic piston pump.Especially, the installing space of very little is only needed according to the return unit of the bridge-type form of springs of the present invention.By
This, for example, can provide more installing spaces, this causes hydraulic piston pump for the pulsation damper being arranged in piston pump
Shock absorbing characteristicses more preferably.
It is last that there is provided a kind of motor vehicle braking system having according to hydraulic piston pump of the invention.
Vehicle according to the invention brakes includes hydraulic piston pump, and the hydraulic piston pump has pressing according to the present invention
According to the valve of features described above and advantage.
This motor vehicle braking system can be, for example, anti-lock braking system (ABS), Driving Antiskid Control System (TCS- tractive force
Control system), ESP system (ESP) or EHB (EHB).It is particularly advantageous in such systems
Be, hydraulic piston pump have robust and while can with low cost manufacture valve, the valve ensure that the sealing of height and
The optimal function of brakes is provided under long service life.Especially, small pressure fluctuation level is proved to be favourable.
Brief description of the drawings
The embodiment of the solution according to the present invention is described in detail referring to the drawings.In accompanying drawing：
Fig. 1 shows the longitudinal sectional view of the first embodiment of the valve according to the present invention,
Fig. 2 shows the top view of the second embodiment of the valve closure body with bridge-type spring,
Fig. 3 shows the view III according to Fig. 2, and
Fig. 4 shows the longitudinal sectional view IV according to Fig. 2 and Fig. 3.
Embodiment
Fig. 1 shows the valve 10 of the hydraulic piston pump of motor vehicle braking system.Valve 10 is wherein configured with circular valve including one
The valve seat 12 in hole 14 and an alternative valve closure body 16 for opening and closing valve opening 14.The valve closure body tabular it is integral
Plastic injection piece, and the storing apparatus 22 including setting element 18, buckle element 20 and for supporting return unit 24 are shaped to,
The return unit imposes reset force to valve closure body 16 and the valve closure body 16 is pressed against on valve seat 12.
It is configured to the inlet valve 10 of hydraulic piston pump herein according to the valve 10 of the present invention.Hydraulic piston pump includes can be in cylinder
The piston being movable into and out in body, the piston is by means of eccentric wheel drive.If piston is removed from cylinder body, in cylinder interior
Pressure span in produce negative pressure.If this negative pressure is more than the reset force being applied on valve closure body 16, the quilt of valve closure body 16
Lifted from valve seat 12 and fluid passes through the feed pressure region of valve opening 14 from fluid intake.When piston moves into cylinder body, in pressure
Fluid in region is pressurized and is pressed towards the valve closure body 16 in dump valve 10.If applied on valve closure body 16
Pressure be more than return unit 24 reset force, then valve closure body 16 is lifted from valve seat 12 and fluid is imported into for acting
In hydraulic system.
Valve seat 12 has front 26 and the back side 28, wherein front 26, which is defined as fluid (being herein brake fluid), flows into valve opening 14
Side, and the back side 28 is defined as the side that fluid flows out from valve opening 14.
The plate portion 30 of return unit 24 and valve closure body 16 is arranged on the front 26 of valve seat 12.Here, according to this hair
The bright return unit 24 for being designed to bridge-type spring 24 applies pressure to valve closure body 16 so that valve closure body 16 is in inactive state
It is compressed against on valve seat 12.Region where valve closure body 16 is lain against go valve seat 12 constitutes sealing surface 32, and the sealing surface is realized
The substantially fluid tight closing of valve 10.
Bridge-type spring 24 is round bar, i.e. spring wire 24, and the spring wire includes two end regions 34,36 and a middle area
Domain 38.Storing apparatus 22 of the spring wire 24 in intermediate region 38 on valve closure body 16 is accommodated (referring also to Fig. 2).Storing apparatus 22
With the step-like lug boss 46 on the surface of valve closure body 16, the lug boss deviates from valve seat 12.The lug boss 46
Run through by slot-shaped transverse opening 48 (referring also to Fig. 2).Spring wire 24 is clamped in this transverse opening 48, i.e., there
It is permanently connected by position.Thus, storing apparatus 22 is that spring wire 24 constitutes so-called fixed bearing.The storing apparatus limits bridge
The direction of motion of the formula spring 24 on three degree of freedom.
It is because valve closure body 16 and the position of spring wire 24 are permanently connected there is provided a preassembled component 50, i.e., single
Member 50, the unit is exercisable (referring to Fig. 2).The unit 50 can piston pump period of assembly in a straightforward manner with
Valve seat 12 is fitted together.
Spring wire 24 is crossed in the way of bridge on valve closure body 16, and is supported on branch with two end regions 34,36
In bearing surface 40, the bearing-surface is used as floating support.The bearing-surface 40 is located in the step 42 of bonnet 44.That is, spring
Silk 24 by bonnet 44 and valve closure body 16 by pretension in installing space.
If valve closure body 16 is lifted from valve seat 12, i.e., the pressure applied by fluid is more than answering for bridge-type spring 24
Position power, then spring 24 deform.Here, two end regions 34,36 are pressed against on bearing-surface 40 and one section of the movement of intermediate region 38
The stroke determined by the elastic force of spring 24.That is, during valve closure body 16 is lifted from valve seat 12,24, bridge-type spring
Deformed according to the distance that valve closure body 16 passes through.
The side of the close valve opening 14 of valve closure body 16 is provided with the setting element 18 of cylindric stepped form, the step
It is contained in the inside of valve opening 14.Setting element 18 is spaced apart with the inwall 52 of valve opening 14 and ensures that fluid is lifted in valve closure body 16
It can be flowed through in the case of rising between the inwall 52 and setting element 18 of valve opening 14.The purpose of setting element 18 is, is beating
Valve closure body is oriented to vertically during on and off valve closing 10, and particularly closed valve under the closed mode of valve 10
Body is accurately located on sealing surface 32.
Setting element 18 protrudes through valve opening 14.On the end of setting element, i.e., set on the back side 28 of valve seat 12
There is buckle element 20.Buckle element 20 is stuck on the back side 28 of valve seat 12 by means of two by the arm 54 being separated from each other, and this two
Individual arm is flexible relative to each other.If buckle element 20 inserted through valve opening 14 when assembling valve 10, two
Arm 54 is pressed together.If buckle element has been arranged on the back side 28 of valve seat 12, two arms 54 are opened again.Cause
This, valve closure body 16 forms a component by anti-be arranged on valve seat 12 with losing of buckle element 20.
The valve closure body 16 according to Fig. 1 is shown into Fig. 4 in Fig. 2.However, valve closure body 16 does not have buckle element
20, but with the setting element 18 shortened.What the setting element 18 was loosely put into valve opening 14 and determined by one
Part 56 is stretched into valve opening 14 (with particular reference to Fig. 4).Compared with the embodiment according to Fig. 1, setting element is herein with its cylinder
The inwall 52 of the more closely adjacent valve opening 14 of shape step 42 is set.Thus, it achieve particularly the determining radially of valve closure body 16
Position.On the one hand valve closure body 16 is freely supported by, and is on the other hand correctly found in shutoff valve 10 on sealing surface 32.
Therefore the valve 10 of a kind of low cost and robust can be provided, the valve ensure that under quick closing property good close
Envelope effect is simultaneously readily integrated into hydraulic piston pump.Bridge-type spring 24 only has the size of very little, thus only needs the knot of very little
Conformational space is used for spring 24 being integrated into valve 10.Installing space is minimized.
Shown according to the valve 10 of the present invention in this as plate valve 10, because this valve ensures the dead of in piston pump very little
Area's volume.However, it is also possible to consider the valve of other geometries, such as spherical segment valve, half ball valve or cone valve.In addition, generation
Leaf spring or scroll spring can also be used for spring wire 24.
Finally, it is to be noted that, whole features described in the dependent claims are particularly in application documents should be single
Solely or in any combination mode is independently protected, although they quote one or more established right in form
It is required that.
Claims (9)
1. a kind of valve (10), the valve has：Valve seat (12), is configured with valve opening (14) in the valve seat and the valve seat has just
Face (26) and the back side (28)；Valve closure body (16), the valve closure body, which is arranged on the front of the valve seat (12) (26), to be used to select
Open and close to selecting property the valve opening (14)；And return unit (24), the return unit is arranged on the front of the valve seat (12)
(26) it is pressed against on and by the valve closure body (16) on the valve seat (12), it is characterised in that the return unit (24) is
Bridge-type spring (24), the bridge-type spring (24) is strip and has two end regions (34,36) and an intermediate region
(38), bridge-type spring (24) is placed on the bearing-surface of valve chest (44) (40) with two end regions (34,36) floating ground, and
The bridge-type spring (24) is supported on the slot-shaped of the storing apparatus (22) of the valve closure body (16) with its intermediate region (38)
Transverse opening (48) in, wherein, the bridge-type spring (24) is round bar.
2. according to the valve (10) described in claim 1, it is characterised in that the bridge-type spring (24) is spring wire (24).
3. according to the valve (10) described in claim 1 or 2, it is characterised in that the valve closure body (16) includes stretching into the valve
Setting element (18) in hole (14).
4. according to the valve (10) described in claim 3, it is characterised in that the setting element (18) includes buckle element (20),
The buckle element is stuck on the back side of the valve seat (12) (28).
5. according to the valve (10) described in claim 1 or 2, it is characterised in that the valve closure body (16) is moulding.
6. according to the valve (10) described in claim 1 or 2, it is characterised in that the valve closure body (16) is tabular.
7. according to the valve (10) described in claim 1, it is characterised in that the valve (10) is the valve of hydraulic piston pump.
8. a kind of hydraulic piston pump, it is characterised in that the hydraulic piston pump has according to any in preceding claims 1 to 7
Valve (10) described in.
9. a kind of motor vehicle braking system, it is characterised in that the motor vehicle braking system has according to the piston described in claim 8
The motor vehicle braking system of pump.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010040284.2 | 2010-09-06 | ||
| DE201010040284 DE102010040284A1 (en) | 2010-09-06 | 2010-09-06 | Valve, particularly hydraulic piston pump of vehicle brake system, comprises valve seat, in which valve opening is formed, where valve closing body is provided, which is arranged on front side of valve seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102410199A CN102410199A (en) | 2012-04-11 |
| CN102410199B true CN102410199B (en) | 2017-09-12 |
Family
ID=44898833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110265701.4A Active CN102410199B (en) | 2010-09-06 | 2011-09-05 | The valve of valve, particularly hydraulic piston pump |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN102410199B (en) |
| DE (1) | DE102010040284A1 (en) |
| FR (1) | FR2964438A1 (en) |
| IT (1) | ITMI20111583A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012222826A1 (en) | 2012-06-28 | 2014-01-02 | Robert Bosch Gmbh | Piston fuel pump |
| ES2402636B1 (en) * | 2013-03-08 | 2014-01-23 | Zertan S.A. | Back pressure valve for fuel injectors |
| CA2930536A1 (en) * | 2013-11-15 | 2015-05-21 | 3M Innovative Properties Company | Respirator having noncircular centroid-mounted exhalation valve |
| DE102016115025B3 (en) * | 2016-08-12 | 2017-09-14 | Feluwa Pumpen Gmbh | Valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811148A1 (en) * | 1998-03-14 | 1999-09-16 | Itt Mfg Enterprises Inc | Check valve for hydraulic system |
| DE102004028889A1 (en) * | 2004-06-15 | 2006-01-05 | Robert Bosch Gmbh | Piston pump with slot-controlled inlet valve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE791877A (en) * | 1971-11-26 | 1973-03-16 | Bryan Donkin Co Ltd | CHECK VALVE IMPROVEMENT |
| US7004733B2 (en) * | 2001-06-30 | 2006-02-28 | Robert Bosch Gmbh | Piston pump |
| AU2003902425A0 (en) * | 2003-05-19 | 2003-06-05 | Burkhard Franz Pty Ltd | A portable ear device |
| DE202004009673U1 (en) * | 2004-05-05 | 2005-09-15 | Hengst Gmbh & Co Kg | Valve arrangement in a crankcase ventilation |
| DE102005005473A1 (en) * | 2005-02-04 | 2006-08-17 | Polytec Automotive Gmbh & Co. Kg | One-piece spring plate valve for switchable mini cyclone, has bending arms charged with positive and negative bending moments in such a manner that locking plate is lifted with adjacent opening pressure by parallel movement of plate |
| US7506663B2 (en) * | 2006-07-20 | 2009-03-24 | Fleetguard, Inc. | Magnetic check valve |
| DE102008043841A1 (en) | 2008-11-19 | 2010-05-20 | Robert Bosch Gmbh | Ball valve for high pressure pumps |
-
2010
- 2010-09-06 DE DE201010040284 patent/DE102010040284A1/en active Pending
-
2011
- 2011-09-01 FR FR1157734A patent/FR2964438A1/en active Pending
- 2011-09-05 CN CN201110265701.4A patent/CN102410199B/en active Active
- 2011-09-05 IT ITMI20111583 patent/ITMI20111583A1/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811148A1 (en) * | 1998-03-14 | 1999-09-16 | Itt Mfg Enterprises Inc | Check valve for hydraulic system |
| DE102004028889A1 (en) * | 2004-06-15 | 2006-01-05 | Robert Bosch Gmbh | Piston pump with slot-controlled inlet valve |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI20111583A1 (en) | 2012-03-07 |
| DE102010040284A1 (en) | 2012-03-08 |
| FR2964438A1 (en) | 2012-03-09 |
| CN102410199A (en) | 2012-04-11 |
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