CN102913433B - The piston pump of piston pump, particularly motor vehicle braking system - Google Patents
The piston pump of piston pump, particularly motor vehicle braking system Download PDFInfo
- Publication number
- CN102913433B CN102913433B CN201210275530.8A CN201210275530A CN102913433B CN 102913433 B CN102913433 B CN 102913433B CN 201210275530 A CN201210275530 A CN 201210275530A CN 102913433 B CN102913433 B CN 102913433B
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- China
- Prior art keywords
- piston
- piston pump
- cylinder
- conveyor
- valve
- 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.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4031—Pump units characterised by their construction or mounting
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—Pistons
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
Abstract
The present invention relates to a kind of piston pump (10), the particularly piston pump of motor vehicle braking system, described piston pump has the conveyor piston (16) for conveyance fluid and piston reset spring (49), and described in described piston pump, piston reset spring (49) is volute spring.
Description
Technical field
The present invention relates to the piston pump of a kind of piston pump, particularly motor vehicle braking system, this is lived
Plug pump has the conveyor piston for conveyance fluid and piston reset spring.
Background technology
At motor vehicle braking system, such as anti-lock braking system (ABS) needs type described above
Piston pump for discharge pressure medium.Pressure medium many fingers fluid, such as brake fluid.With
Typical piston pump in such motor vehicle braking system include cylinder housing or
Saying cylinder, it is used as the sliding surface of the conveyor piston being located therein.Conveyor piston is by pressure medium
Release from cylinder.Additionally, be provided with on piston pump for described pressure medium inlet valve and
Dump valve.Need potted component to avoid or to reduce letting out on piston pump or in piston pump
Leakage.
Inlet valve and dump valve are used for during the compression stage realized by delivery pump pressure
Medium stream is controlled.Inlet valve prevents pressure medium to be back to suction during compression stage
In region.Dump valve prevents pressure medium from compressed side is back to cylinder the most in other words.
Inlet valve and dump valve are generally configured to spring-loaded ball valve.
Summary of the invention
Foundation the invention provides the piston pump of a kind of piston pump, particularly motor vehicle braking system,
There is the conveyor piston for conveyance fluid and piston reset spring, live in described piston pump
Plug back-moving spring is volute spring helical springs in other words.
Being characterised by according to the piston reset spring of the present invention, it is the most in one plane
Extend, and start the ground scroll in other words ground outwards winding in volute at this from center.Cause
This, this piston reset spring has the most flat volute spiral shape in other words, and
And therefore there is the helical spring of coil along the longitudinal axis not with common being configured to
With.This kind of piston reset spring according to the present invention has the least structure space demand,
And it is implemented in combination with can providing the most functionally with other elements but also has become present aspect
The most particularly advantageous pump.Especially, this piston pump has the least harmful dead band appearance
Long-pending.Additionally, other installation situation of this piston pump in view of motor vehicle braking system, especially
Advantageously, the least axially mounted sky is only needed according to the piston reset spring of the present invention
Between.Therefore, ground can be constructed according to the piston pump of the present invention in terms of its longitudinal length special
The least, piston pump and the overall dimensions of cylinder housing thereof and total materials demand are produced by generally
Raw very favorable impact.
Conveyor piston according to the piston pump of the present invention is particularly preferably directed in cylinder, and
And the sliding sealing device by means of annular seals relative to cylinder.Sliding sealing device is by cylinder
Bore seal so that do not have the fluid can be inside piston and cylinder the most as far as possible
Between from this inner chamber itself flow out.Here, sliding sealing device improves defeated the most especially
Send the pressure initiation dynamic characteristic of piston.
Alternatively, or additionally, described conveyor piston is advantageously close by means of barrier film in cylinder
Seal apparatus seals.
Diaphragm closure means is sealed and position is fixedly mounted on cylinder and piston, substantially
Radially extending and can be axially biased.By this skew, diaphragm closure means can
Think conveyor piston to provide in cylinder and form the axially-movable space needed for pressure.Meanwhile, every
The inner chamber of cylinder is also fully sealed by film phonograph seal device, because diaphragm closure means is fixed by position
Be arranged on cylinder, without sliding.This diaphragm closure means is thus provided that a kind of complete
Fluid-tight and leak free piston pump.This diaphragm closure means is preferably by means of locating snap ring
It is fixed in the cup-like shape of profiled part (Umformteil).This locating snap ring is preferably pressed from both sides
Tight or press-in.
Additionally, be provided preferably with for directing fluid on the piston pump according to the present invention
The introducing portion of conveyor piston and for the lead division that fluid is drawn from described conveyor piston,
And described introducing portion and/or lead division are consisted of profiled part, especially, described molding
Parts are substantially cup-shaped.
Profiled part only manufactures by Plastic Forming rather than by shaping by stock removal.They are permissible
Manufacture with low-down cost, because being the molding process of this required Plastic Forming,
Such as it is pressed into a shape or punching press, the time can be retained as the shortest.Additionally, at this not
Produce or seldom produce tool loss.Can also be largely avoided formation burr and
Danger is produced due to the chip of attachment.By dangerous produced by the chip adhered in systems
In motor vehicle braking system the most very important.According to the present invention profiled part for
Fluid introducing in piston pump and/or extraction are preferably constructed as the most cup-shaped.Cup-shaped
It it is a kind of shape that can manufacture by means of moulding process particularly well.It is specifically adapted for
The inside of cup surrounds parts and limits flow path together with these parts.Therefore,
Advantageously achieve from cup along vertically to the inflow within cup-like shape.Preferably pass through cup
The end, flows out from cup-like shape in center.
It is also advantageous that, profiled part is configured with inflow section, flows out section and by these
The sealing section that section seals relative to each other.
Profiled part is preferably configured with recess and/or protuberance for this so that only pass through forming part
On part or the section jointly acting on these parts by this profiled part and miscellaneous part
Or section is formed guide passage or passage.Therefore, it can in the feelings not having milling or Drilling operation
Guide passage and passage is formed under condition.
Further, it is preferable to be provided with cylinder in piston pump, described cylinder is formed parts and encases.
By such design, can particularly simple, particularly at the longitudinal direction of pumping cylinder
On, guide passage and passage are arranged between pumping cylinder and the profiled part encased.Forming part
Part particularly advantageously surrounds cylinder on a section of its longitudinal length.Entrance is positioned at it longitudinally
On one section of length.Direct fluid portion extends to another section along cylinder, this another
Section upper fluid is directed into the inside of cylinder.
Additionally, be the most particularly advantageously provided with for guiding conveying to live according to the piston pump of the present invention
The cylinder of plug, described cylinder is consisted of profiled part.Described profiled part is preferably by staged
Be designed as cup-shaped.
Therefore the above-mentioned advantage of processing and forming is achieved relative to the manufacture of machining.Ladder
The cup-like shape of formula provides the inner chamber that cross-sectional area varies in size, and it can be advantageously used for
Different functional areas.Here, advantageously, formed and there is the of bigger cross-sectional area
One region, is provided with the sealing relative to adjacent eccentric driving means in this first area
Device.Especially, in this first area, it is additionally provided with sealing device, particularly preferred
Be structure be the sealing device of diaphragm closure means.Furthermore it is advantageous that have at this
In the first area of bigger cross-sectional area, the piston of the volute structure of the installation warrants present invention
Back-moving spring, this spring ground supports conveyor piston.The bottom of cup-like shape can be favourable
The face acting on the opening forming inlet valve and/or dump valve, ground.These openings can pass through
Simple stamping procedure is made with high dimensional accuracy.Sealing surface, especially for dump valve
The valve base surface of closure body can also be formed advantageous by this mode.
Preferably, piston pump is provided with cylinder, inlet valve and dump valve, and described suction
Valve and dump valve are arranged on the end of described cylinder.
Described inlet valve and dump valve focus on a region.The most comprehensively have two
Individual function, and the suction of fluid and discharge will not mutually have a negative impact.Guide passage guide portion
(Leitungsf ü hrung) also concentrates on this region.It is thereby achieved that short guide passage road
Footpath, and only produce the least flow losses.Additionally, thus also create particularly compact
Version.
In a kind of advantageous embodiment, described inlet valve is fly gate.
Inlet valve can be provided with lid, swingable plate or contact pin or axle ring as cut out at this
Element.Hinge is in case of need in the swing of closing element or flip-flop movement phase
Between it is guided.Hinge is advantageously configured as section or the thin film section of flexibility,
On this section, the swing of adjacent hinging components can be carried out the most without resistance.This carries
Supplied a kind of closely and the inlet valve design of low cost.Particularly advantageously, will
This inlet valve is arranged on the side of cylinder.Additionally, inlet valve is preferably designed to annular
Element, this ring-type element optionally covers multiple spaced opening on ring.Hinge
Valve can merely due to the elasticity of its material is returned to its initial position from the position deflected into, or
Person saves sky especially by means of ring spring, disk spring, volute spring or volute spring
Between by elastic pretension.
In another advantageous embodiment, dump valve is to have valve seat and valve body closes in other words
The centre valve (Sitzventil) of closure.Hole in valve seat can be closed by means of valve body, should
Valve body abuts in for this on valve seat and seals there.Preferably, valve body flexibly by means of
Helical spring is resisted against on valve seat by pretension.Valve body is preferably consisted of spheroid, especially
By means of helical spring by elastic pretension.This kind of dump valve can the most economical space saving be arranged
In the central authorities of the inlet valve being configured to annular hinge valve, particularly as described above,
It is arranged on the side of cylinder.
Accompanying drawing explanation
Below by way of appended schematic diagram, the embodiment of the solution according to the present invention is entered
Row elaborates.Wherein:
Fig. 1 shows the first embodiment of the piston pump according to the present invention with axonometric chart,
Fig. 2 shows the piston pump according to Fig. 1 with longitudinal cut-away view,
Fig. 3 shows the first molding of the piston pump according to Fig. 1 with three-dimensional longitudinal cut-away view
Parts,
Fig. 4 shows the second molding of the piston pump according to Fig. 1 with three-dimensional longitudinal cut-away view
Parts,
Fig. 5 shows the second embodiment of the piston pump according to the present invention with longitudinal sectional view,
Fig. 6 shows the 3rd embodiment of the piston pump according to the present invention with longitudinal sectional view,
Fig. 7 shows the details of the inlet valve-modification of the piston pump according to Fig. 6.
Detailed description of the invention
Figure 1 illustrates piston pump 10, especially for the piston pump of motor vehicle braking system,
This piston pump includes the cup-shaped cylinder 12 that its form is the first profiled part.At Fig. 1 in cylinder 12
Left side be provided with diaphragm closure means 14, this diaphragm closure means is extending essentially in the transverse to be passed
Cylinder 12.In these diaphragm closure means 14 central authorities is conveyor piston 16, and this conveyor piston exists
By means of sliding sealing device 17 in a fluid tight manner at cylinder on end in its sensing
It is directed in 12.Additionally, conveyor piston 16 its towards in the end section in outside with barrier film
Sealing device 14 fluid-tight ground connects.Then, this diaphragm closure means 14 is in it
On radially outward edge with cylinder 12 fluid-tight be connected.Additionally, this piston pump 10 includes one
Individual other cup-shaped profiled part 18.The end towards outside of conveyor piston 16 can be borrowed
Help a unshowned rotating eccentric be extruded in cylinder 12.
Cylinder 12 is stepwise designed as including having the cylindrical section 19 of large radius and half
The cylindrical section 20 that footpath is relatively small.Profiled part 18 is stepwise designed as bag equally
Include and there is the cylindrical section 21 of large radius and the relatively small cylindrical section 22 of radius.
Section 21 has substantially corresponding with section 20 cylindrical shape, and is inserted
Overlap or be pressed on section 20.Section 20 also has three and is evenly distributed on section 20
Recess 23, described recess respectively along section 20 or piston pump 10 axial cylinder 12 with become
Passage gap 24 in other words are produced between type parts 18.Brake fluid can lead to as fluid
Cross these gaps 24 and arrive at the inside of cylinder 12.
The pumping procedure of the piston pump 10 course of conveying in other words outside by conveyor piston 16
Excitation is triggered.This external drive realizes preferably by means of eccentric, this eccentric effect
On conveyor piston 16 so that this conveyor piston axially moves reciprocatingly along cylinder 12.
In fig. 2, it is further seen that back-moving spring 26, conveyor chamber 28, potted component 30,
Suction inlet 32, potted component 34, Packing spring 36, outlet 38, delivery port 40 and
Guide passage 42.
Inlet hole 32 constitutes inlet valve 44 together with potted component 30.Outlet 38 and second
Potted component 34 constitutes dump valve 46 together.
Additionally, be configured with jut 48 on profiled part 18, this jut is in the conveying of cylinder
Abut on the side in region 20 on cylinder 12, and be consequently formed sealing position 50.
Additionally, in fig. 2 the section 20 of cylinder 12 and profiled part 18 section 21 it
Between, it is further seen that in three gaps 24, this gap is formed in multiple guide passage 42
One.Brake fluid can reach inlet valve 44 by these guide passages 42 from outward.With three
Gap 24 cooperatively, arranges three suction inlets 32 on the end face of cup-shaped cylinder 12.Therefore,
First brake fluid arrives the front of potted component 30 from outside.Potted component 30 is designed to
Annular disk, it covers whole three suction inlets 32, and can be by this way by whole three
Individual suction inlet is closed.Potted component 30 is pressed towards the side of cylinder 12 by means of back-moving spring 26,
And remain there with being attached by this way.
Additionally, in fig. 2 it is possible to see the most in the cross-section and conveyor piston 16
The diaphragm closure means 14 coupled.It is provided with piston reset spring on diaphragm closure means 14 side
49, this piston reset spring is designed to volute and similarly extends essentially in radial direction.
By means of piston reset spring 49 with as already described by the reset bullet of potted component 30 pretension
Spring 26, conveyor piston 16 is being preloaded on cylinder 12 direction out.
Back-moving spring 26 at one end abuts on conveyor piston 16 and abuts at the other end
On potted component 30.Thus, spring-force driven dual and exists on conveyor piston 16 there
Also act against when needing on sliding sealing device 17 and potted component 30.
When brake fluid is drawn in piston pump 10, sealing by means of conveyor piston 14
Suction is produced so that suction inlet 32 is opened by this potted component 30, thus makes on element 30
Hydrodynamic can enter in conveyor chamber 28.In order to carry out this suction, conveyor piston 14 is borrowed
Help piston reset spring 49 and back-moving spring 26 move, piston reset spring 49 and
Conveyor piston 14 is extruded from cylinder 12 by back-moving spring 26 when eccentric bounces back.
Subsequently, conveyor piston 16 is again together with sliding sealing device 17 quilt fixed thereon
Eccentric is pressed axially towards the direction of the outlet 38 of piston pump 10.Thus, at conveyor chamber 28
Middle formation pressure.This pressure is by being pressed in the first potted component 30 under the effect of fly gate
On the side being provided with suction inlet 32 of this cylinder 12, inlet valve 44 is closed.Conveyor chamber 28
At this by means of constituting the sliding sealing device 17 of high pressure seal and in addition by means of structure
Become the diaphragm closure means 14 of leakage sealed device by external seal.Additionally, pressure will conveying
Fluid in chamber 28 goes towards the direction pressure of potted component 34 via outlet 38.This seals
Element 34 is lifted on its corresponding valve seat on outlet 38, and brake fluid can
In potted component 34 side process, to flow out from delivery port 40.Here, potted component 34
It is resisted against in outlet 38 by pretension by means of Packing spring 36, thus to be constituted centre valve.
Suction inlet 32 and outlet 38 in the outside of cylinder 12 by seal position 50 mutually every
Open.Thus, after brake fluid has passed through outlet 38, brake fluid does not returns to lead
In road 42 and/or conveyor chamber 28.
In figure 3, particularly illustrate the recess 23 of multiple arch, these recess with set
Put profiled part 18 thereon combine composition multiple guide passages 42.Further it is shown that cloth
Put the suction inlet 32 on the side of conveyor chamber 28 and outlet 38.
In the diagram, can identify well for by relative for the inhalation area of piston pump 10
In the jut 48 that the discharging area of this piston pump seals.This jut 48 is substantially circular
Ground is configured to convex shoulder or female connector.This jut 48 is seated in and is positioned at sucking of cylinder 12 side
In rounded face between mouth 32 and outlet 38.Thus, the sealing illustrated is formed
Position 50 and therefore formation fluid introducing portion and the sealing of fluid lead division.
In fig. 5 it is shown that piston pump 10 embodiment, in this embodiment, not
Back-moving spring 26 is set.This is feasible, because by means of the piston reset spring 49 of volute
Can axially produce enough reset forces, so that conveyor piston 16 moves out from cylinder 12
Go and at this moment brake fluid is drawn in conveyor chamber 28.
Finally, Fig. 6 shows volute spring 51, and this volute spring is seated in sealing in side
On element 30, this potted component is pressed against on the suction inlet 32 of correspondence.Thus, special
Not, additionally due to be not provided with in such an embodiment generation make potted component 30 against
The back-moving spring 26 of this pretension on suction inlet 32, so volute spring 51 improves
The sealing property of potted component 30.
Claims (10)
1. the piston pump (10) of a motor vehicle braking system, described piston pump has for defeated
Send conveyor piston (16) and the piston reset spring (49) of fluid, wherein, described piston
Back-moving spring (49) is substantially radially to extend in a plane and be arranged on piston pump
Conveyor chamber outside volute spring.
2. according to the piston pump described in claim 1, wherein, described conveyor piston (16)
In cylinder (12) directed, and the sliding sealing device (17) by means of annular is relative
Seal in described cylinder (12).
3. according to the piston pump described in claim 1 or 2, wherein, described conveyor piston (16)
In cylinder (12) directed, and by means of diaphragm closure means (14) relative to described
Cylinder (12) seals.
4. according to the piston pump described in claim 1, wherein, it is provided with for fluid is guided
To conveyor piston (16) introducing portion and for by fluid from described conveyor piston (16)
The lead division drawn, and described introducing portion and/or lead division are by profiled part (18) structure
Becoming, described profiled part is substantially cup-shaped.
5. according to the piston pump described in claim 4, wherein, described profiled part (18)
Have and flow into section, outflow section and the sealing section sealed relative to each other by these sections.
6. according to the piston pump described in claim 4 or 5, wherein, it is provided with for guiding
Stating the cylinder (12) of conveyor piston (16), described cylinder is formed parts (18) and encases.
7. according to the piston pump described in claim 1, wherein, be provided with for guiding described defeated
Sending the cylinder (12) of piston (16), described cylinder is consisted of profiled part, this profiled part
Stepwise it is designed as cup-shaped.
8. according to the piston pump described in claim 1, wherein, it is provided with for guiding conveying to live
The plug cylinder (12) of (16), inlet valve (44) and dump valve (46), and described suction
Enter valve (44) and described dump valve (46) is arranged on the end of described cylinder (12).
9. according to the piston pump described in claim 1, wherein, it is provided with inlet valve (44),
Described inlet valve is fly gate.
10. according to the piston pump described in claim 1, wherein, it is provided with dump valve (46),
Described dump valve is centre valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011080287.8 | 2011-08-02 | ||
| DE201110080287 DE102011080287A1 (en) | 2011-08-02 | 2011-08-02 | Piston pump for vehicle braking system, has supply piston for supplying fluid and piston return spring, which is designed as volute spring, where supply piston is guided in cylinder and is sealed by annular sliding seal against cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102913433A CN102913433A (en) | 2013-02-06 |
| CN102913433B true CN102913433B (en) | 2016-12-07 |
Family
ID=47427352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210275530.8A Expired - Fee Related CN102913433B (en) | 2011-08-02 | 2012-08-01 | The piston pump of piston pump, particularly motor vehicle braking system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102913433B (en) |
| DE (1) | DE102011080287A1 (en) |
| FR (1) | FR2978806A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350850A (en) * | 2018-12-20 | 2020-06-30 | 罗伯特·博世有限公司 | Check valve with valve seat |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3057916B1 (en) * | 2016-10-24 | 2021-11-05 | Cryostar Sas | CRYOGENIC PUMP |
| EP3718844B1 (en) * | 2019-04-05 | 2023-02-08 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Piston assembly for an unloader valve of an air compressor |
| CN114278558B (en) * | 2021-12-21 | 2024-01-12 | 江苏倍源泵业有限公司 | Hot water circulating pump mouth ring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3366017A (en) * | 1965-02-11 | 1968-01-30 | Nat Res Dev | Ball piston hydrostatic machines |
| DE19505232A1 (en) * | 1995-02-16 | 1996-08-22 | Bosch Gmbh Robert | Piston pump for slip-regulated hydraulic brake system for vehicle |
| CN101258324A (en) * | 2005-09-06 | 2008-09-03 | 罗伯特·博世有限公司 | Piston pump with reduced clearance volume |
| CN101284528A (en) * | 2007-04-09 | 2008-10-15 | 株式会社万都 | Pump of electronically controlled brake system |
| CN101910626A (en) * | 2008-01-08 | 2010-12-08 | 罗伯特·博世有限公司 | Hydraulic fluid pump having a sealing element |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080245069A1 (en) * | 2007-04-09 | 2008-10-09 | Mando Corporation | Pump of electronically controlled brake system |
-
2011
- 2011-08-02 DE DE201110080287 patent/DE102011080287A1/en active Pending
-
2012
- 2012-08-01 FR FR1257472A patent/FR2978806A1/en active Pending
- 2012-08-01 CN CN201210275530.8A patent/CN102913433B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3366017A (en) * | 1965-02-11 | 1968-01-30 | Nat Res Dev | Ball piston hydrostatic machines |
| DE19505232A1 (en) * | 1995-02-16 | 1996-08-22 | Bosch Gmbh Robert | Piston pump for slip-regulated hydraulic brake system for vehicle |
| CN101258324A (en) * | 2005-09-06 | 2008-09-03 | 罗伯特·博世有限公司 | Piston pump with reduced clearance volume |
| CN101284528A (en) * | 2007-04-09 | 2008-10-15 | 株式会社万都 | Pump of electronically controlled brake system |
| CN101910626A (en) * | 2008-01-08 | 2010-12-08 | 罗伯特·博世有限公司 | Hydraulic fluid pump having a sealing element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350850A (en) * | 2018-12-20 | 2020-06-30 | 罗伯特·博世有限公司 | Check valve with valve seat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102913433A (en) | 2013-02-06 |
| DE102011080287A1 (en) | 2013-02-07 |
| FR2978806A1 (en) | 2013-02-08 |
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