CN101495749A - Piston for a vehicle brake system piston pump - Google Patents
Piston for a vehicle brake system piston pump Download PDFInfo
- Publication number
- CN101495749A CN101495749A CNA2007800286312A CN200780028631A CN101495749A CN 101495749 A CN101495749 A CN 101495749A CN A2007800286312 A CNA2007800286312 A CN A2007800286312A CN 200780028631 A CN200780028631 A CN 200780028631A CN 101495749 A CN101495749 A CN 101495749A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- cross
- brake system
- section
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Images
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
- F04B5/00—Machines or pumps with differential-surface pistons
-
- 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
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- 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
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
-
- 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
- F04B5/00—Machines or pumps with differential-surface pistons
- F04B5/02—Machines or pumps with differential-surface pistons with double-acting pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Details Of Reciprocating Pumps (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
A piston (46) for a vehicle brake system piston pump (42, 60), mounted in a cylinder (44, 64) of the vehicle brake system piston pump (42, (60) such as to be able to move in a cylinder opening (58, 62), is characterised in that the piston (46) has a first and a second end region, designed with differing cross sectional areas (48, 50) and both end regions are embodied to form a sealing connection with one of two cylinders (44, 64), the cylinder openings (58, 62) have differing cross-sectional areas matching the cross-sectional areas (48, 50) of the piston (46).
Description
Background technique
The present invention relates to the piston of vehicle brake system piston pump, it is placed in the cylinder openings in the cylinder of vehicle brake system piston pump movably.
The vehicle brake system piston pump of aforesaid way is installed in the affiliated braking device of Motor Vehicle, to be transported to brake fluid in the wheel braking cylinder there or therefrom to draw brake fluid.Reciprocating pump is equipped with two pistons usually, and this piston can move around in each cylinder openings by means of the eccentric transmission that is provided with between them.Wherein piston has significant surface respectively or claims the cross section, and is that it designs in cylinder it and constitute the pressure chamber of cylinder openings.In the moving around of piston, it transports out brake fluid from this pressure chamber.
Reciprocating pump has predetermined significant surface or cross section on its each piston in known vehicle brake system piston pump, so that all produces predetermined transmission power for each stroke of piston.
Task of the present invention provides the vehicle brake system piston pump of the piston that has mentioned kind, wherein makes the independent modification of reciprocating pump have different transmission powers with minimum component change.According to modular reciprocating pump notion provided by the invention, the significant surface of different size of piston or cross section only just can realized under the situation with a spot of different assembly.
The invention scheme
Task of the present invention is finished with the piston of vehicle brake system piston pump according to claim 1.Further, finish with vehicle brake system piston pump according to claim 3 and with vehicle brake system piston pump group according to claim 5.
According to the piston that the invention provides a kind of vehicle brake system piston pump, it is placed in the cylinder openings in the cylinder of vehicle brake system piston pump movably.Piston has first and second end regions, and two zone design have the cross section of different size.Further, two end regions also form sealed attachment with one of two cylinders coupling, the cylinder openings of two cylinders have different size, with the cross section of piston cross-section coupling.Piston according to the present invention is like this design, that is, it not only can be applied in the cylinder openings of cylinder with an end regions, and can be applied in the cylinder openings of correspondingly matching Design of two different cylinders with two end regions.The cross section that different size is wherein arranged according to the end regions design of piston of the present invention, so that piston has different transmission powers respectively according to situation is installed on the cylinder of the cylinder openings that has corresponding small design, this is not both relative cylinder according to the cylinder openings that has corresponding large-scale design that situation is installed.By this way, although (especially aspect its transmission power) might be the plunger designs of vehicle brake system piston pump general purpose accessory still in the different modification of piston.Basically the remaining function part of vehicle according to the invention braking device-reciprocating pump also is designed to general purpose accessory widely.It is different having only the aspect of the cylinder openings that cylinder designs therein.
Further, at vehicle according to the invention braking device-reciprocating pump place meaningfully, design has seal element respectively between cylinder and relevant piston, particularly is designed to high-pressure sealing ring.Consider that number of spare parts is the least possible, though vehicle brake system piston pump has different modification, these seal elements must be that only different size ground (normally with different diameters) designs according to desirable diameter of piston or cylinder openings respectively.
For the application that makes such seal element more favourable, and a spot of part consumption becomes possibility, according to the present invention at two end regions places of piston preferably respectively design the accommodating part is arranged to hold the seal element that is arranged between piston and the cylinder selectively.
The cylinder of vehicle according to the invention braking device-reciprocating pump advantageously correspondingly is designed to cylinder openings, one of two cross sections in the cross section of this cylinder openings and pistons end zone coupling.
Above-mentioned seal element is preferably corresponding to the size in the cross section of the end regions of the size in the cross section of cylinder openings and piston and design.
In order to reach above-mentioned advantage, further, according to the invention provides one group of vehicle brake system piston pump, it has cylinder and piston respectively, and wherein piston is laid in the cylinder openings of relevant cylinder movably.Each cylinder all has first and second end regions, and it is designed to the cross section with different size.To each piston, two end regions all connect to form liquid seal with relevant cylinder coupling.At least two cylinder design become the cylinder openings in the cross section of band different sizes, wherein the size in the cross section of cylinder openings respectively with the cross section of the different size of the end regions of piston one of coupling.
The accompanying drawing summary
Next the embodiment of two vehicle according to the invention braking device-reciprocating pumps more carefully is described respectively by the schematic representation of enclosing.Wherein:
Fig. 1 has shown the longitudinal section according to the vehicle brake system piston pump of background technique.
Fig. 2 shown at first vehicle brake system piston pump place from the details II of Fig. 1, and
Fig. 3 has shown the details II from Fig. 1 at second vehicle brake system piston pump place.
Preferred implementation
Shown vehicle brake system piston pump 10 in Fig. 1, it comprises and has the design stair-stepping hole 14 therein and the housing 12 of eccentric wheel 16.Hold the cylinder 18 that has cylinder openings 28 in hole 14, piston 20 is laid therein movably.One of end face 22 of piston 20 is near on eccentric wheel 16, so that piston 20 can move in cylinder 18 when eccentric wheel 16 rotations.Wherein piston 20 is leaning the bottom 26 of cylinder 18 and flexiblely pre-tensioning by helical spring 24.Helical spring 24 is arranged in the pressure chamber 28, piston 20 with its second end face 30 towards the pressure chamber.
Further, inlet valve 32 designs are in piston 20, and brake fluid can flow to inlet valve by entering pipe 34.Outlet valve 36 design is in cylinder 18, and those brake fluid can flow through it, and the brake fluid of piston 20 28 is transferred out from the pressure chamber.Wherein Shu Chu brake fluid enters discharge tube 38.
Piston 20 that designs like this and lay and cylinder 18 have unique cross section 20 respectively in pressure chamber 28, it defines the quantity delivered when piston 20 moves.
The details II from Fig. 1 at vehicle according to the invention braking device-reciprocating pump 42 places has been described in Fig. 2 simplifiedly, and it is about element 12,14, and 16,24,32,34, the design of 36 and 38 aspects is as according to the vehicle brake system piston pump among Fig. 1 10.
Yet aspect cylinder 44 and the removable therein piston of laying 46, vehicle brake system piston pump 42 additionally designs.Especially, that is to say that piston 46 is stair-stepping, design has the cross section 48 and 50 of two different sizes of the end regions that constitutes piston 46 respectively, and is annular and diameter that correspondingly have different size.Accommodating part 52 or 54 is arranged on the end regions of piston 46, and it is used to hold seal element.
In the embodiment according to Fig. 2, seal element 56 is designed to annular with the form of high-pressure sealing ring, and it is inserted in the accommodating part 52.Otherwise the accommodating part 54 on piston 46 is empty.By seal element 56, by this way cylinder openings 58 smaller, that be formed in the cylinder 44 in the diameter is designed to sealing.
Shown details II in Fig. 3 equally, specifically in another vehicle according to the invention braking device-reciprocating pump 60, it is once more about element 12,14,16,24,32,34,36 with the design of 38 aspects as according to the vehicle brake system piston pump among Fig. 1 10.
In addition, in this embodiment piston 46 also be the same according to piston 46 among the embodiment of Fig. 2.
Certainly, piston 46 can be without the end regions in cross section 48, and is applied in the cylinder openings 62 of cylinder 64 with the end regions in cross section 50.Cylinder openings correspondingly designs ground on diameter bigger, makes also to be provided at correspondingly bigger pressure chamber, aspect, cross section.In order to reach the sealing of this pressure chamber, corresponding big seal element 66 is applied in 54 places, accommodating part of piston 46, and accommodating part 52 has just become sky.
Finish vehicle brake system piston pump 60 with the piston 46 that is designed to general purpose accessory by this way, piston only just in time is applied in the cylinder openings 62 of different designs on the contrary, though the identical reciprocating pump of piston stroke has different transmission powers.
Claims (5)
1. vehicle brake system piston pump (42,60) piston (46), it is at described vehicle brake system piston pump (42,60) cylinder (44,64) be placed in cylinder openings (58 in movably, 62) in, it is characterized in that, described piston (46) has the cross section (48 that is designed to different size, 50) first end zone and the second end zone, and these two end regions all are matched to the connection that can form sealing with one of two cylinders (44,64), the cylinder openings of two cylinders (58,62) has different size, the cross section that is complementary with the cross section of described piston (46).
2. the piston of vehicle brake system piston pump according to claim 1 is characterized in that, in each design of two end regions of described piston (46) accommodating part (52 is arranged, 54), to hold the seal element (56,66) that is arranged between piston (46) and the cylinder (44,64) selectively.
3. vehicle brake system piston pump, it has the cylinder (44 of piston according to claim 1 and 2 (46) and band cylinder openings (58,62), 64), one of cross section (48,50) of two end regions of the cross section of described cylinder openings (58,62) and described piston (46) coupling.
4. vehicle brake system piston pump according to claim 3 is characterized in that, dimensionally, is provided with the seal element (56,66) that all mates with the size of the relevant end regions of the cross section of described cylinder openings (58,62) and described piston.
5. one group of vehicle brake system piston pump (42,60), it has cylinder (44 respectively, 64) and piston (46), described piston is laid in the cylinder openings (58,62) of relevant cylinder (44,64) movably, it is characterized in that, each piston (46) all has the first end zone and the second end zone in the cross section (48,50) that is designed to different size, to each piston (46), two end regions all also are matched to and relevant cylinder (44,64) form sealed attachment, and two cylinders (44,64) all are provided with the cross section (48 of band different size, 50) cylinder openings (58,62), the cross section (48 of wherein said cylinder openings (58,62), 50) size respectively with one of the cross section (48,50) of the different size of the end regions of described piston (46) coupling.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610035705 DE102006035705A1 (en) | 2006-08-01 | 2006-08-01 | Piston of a vehicle brake system piston pump |
| DE102006035705.1 | 2006-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101495749A true CN101495749A (en) | 2009-07-29 |
Family
ID=38458284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800286312A Pending CN101495749A (en) | 2006-08-01 | 2007-07-03 | Piston for a vehicle brake system piston pump |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2049795A1 (en) |
| CN (1) | CN101495749A (en) |
| DE (1) | DE102006035705A1 (en) |
| WO (1) | WO2008015068A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110131A (en) * | 2014-12-17 | 2017-08-29 | 罗伯特·博世有限公司 | Piston fuel pump for internal combustion engine |
| CN110062845A (en) * | 2016-12-13 | 2019-07-26 | 罗伯特·博世有限公司 | The high-pressure pump of pump, especially fuel injection system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6406195B2 (en) * | 2015-09-18 | 2018-10-17 | 株式会社デンソー | pump |
| AU2021366975A1 (en) * | 2020-10-21 | 2023-04-13 | Provincial Health Services Authority | Novel CXCR4-targeting compounds |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435133A (en) * | 1977-10-17 | 1984-03-06 | Pneumo Corporation | Free piston engine pump with energy rate smoothing |
| AT367916B (en) * | 1980-07-14 | 1982-08-10 | Arcana Chem Pharm | PRODUCT PUMP FOR A DOSING DEVICE |
| DE4439545A1 (en) * | 1994-11-05 | 1996-05-09 | Gerhard Hestermann | Transverse filtration pump assembly |
| WO1999044873A1 (en) * | 1998-03-05 | 1999-09-10 | Kelsey-Hayes Company | Hydraulic control unit for an anti-lock brake system having a pump for performing pressure dump function |
| DE102004061810A1 (en) * | 2004-12-22 | 2006-07-06 | Robert Bosch Gmbh | Piston pump with at least one stepped piston element |
-
2006
- 2006-08-01 DE DE200610035705 patent/DE102006035705A1/en not_active Withdrawn
-
2007
- 2007-07-03 WO PCT/EP2007/056698 patent/WO2008015068A1/en active Application Filing
- 2007-07-03 CN CNA2007800286312A patent/CN101495749A/en active Pending
- 2007-07-03 EP EP07787021A patent/EP2049795A1/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110131A (en) * | 2014-12-17 | 2017-08-29 | 罗伯特·博世有限公司 | Piston fuel pump for internal combustion engine |
| US10288025B2 (en) | 2014-12-17 | 2019-05-14 | Robert Bosch Gmbh | Piston fuel pump for an internal combustion engine |
| CN110062845A (en) * | 2016-12-13 | 2019-07-26 | 罗伯特·博世有限公司 | The high-pressure pump of pump, especially fuel injection system |
| CN110062845B (en) * | 2016-12-13 | 2021-08-31 | 罗伯特·博世有限公司 | Pump, in particular high-pressure pump of a fuel injection system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2049795A1 (en) | 2009-04-22 |
| WO2008015068A1 (en) | 2008-02-07 |
| DE102006035705A1 (en) | 2008-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090729 |