EP2049795A1 - Piston de pompe à piston pour systèmes de freinage de véhicules - Google Patents
Piston de pompe à piston pour systèmes de freinage de véhiculesInfo
- Publication number
- EP2049795A1 EP2049795A1 EP07787021A EP07787021A EP2049795A1 EP 2049795 A1 EP2049795 A1 EP 2049795A1 EP 07787021 A EP07787021 A EP 07787021A EP 07787021 A EP07787021 A EP 07787021A EP 2049795 A1 EP2049795 A1 EP 2049795A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- cylinder
- cross
- brake system
- vehicle brake
- 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.)
- Withdrawn
Links
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
-
- 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
Definitions
- the invention relates to a piston of a vehicle brake system piston pump which is displaceably mounted in a cylinder of the vehicle brake system piston pump in a cylinder opening.
- Vehicle brake piston pumps of the type mentioned above are installed in motor vehicles in the associated brake systems, there to promote brake fluid to wheel brake cylinder or to suck them off.
- the piston pumps are usually provided with two pistons, which can be reciprocated by means of an eccentric drive disposed therebetween in a respective cylinder opening.
- the pistons each have a Wirk Ltd. Cross-sectional area, which is directed to a formed in the cylinder and the cylinder opening forming pressure chamber. When reciprocating the piston this promotes brake fluid out of this pressure chamber.
- the piston pump has a predefined effective or cross-sectional area on each of its pistons, so that a predefined delivery rate is generated for each stroke of the piston.
- the object is erf ⁇ ndungsmul with a piston of a vehicle brake system piston pump according to claim 1. Furthermore, the object is achieved with affybremsanlagen- piston pump according to claim 3 and a group of vehicle brake system piston pumps according to claim 5.
- a piston of aggybremsanlagen- piston pump is created, which is slidably mounted in a cylinder of the vehicle brake system piston pump in a cylinder opening.
- the piston has a first and a second end region, which are designed with different sized cross-sectional area. Both end regions are further adapted to produce a tight coupling with one of two cylinders, the cylinder openings of which have differently sized cross-sectional areas adapted to the size of the cross-sectional areas of the piston.
- the inventive piston is designed such that it can not only be used with one end region in the cylinder opening of a cylinder, but that its two end regions can be inserted into correspondingly designed cylinder openings of two different cylinders.
- the end portions of the piston according to the invention are designed with different sized cross-sectional areas, so that the piston depending on the installation situation on a cylinder with a correspondingly small designed Zylinderöffhung has a different capacity than in a mounting situation on a
- this sealing element must be designed differently sized, usually with different large diameter, depending on the desired diameter of the piston or the cylinder opening.
- the cylinder of the Anlagenbremsanlagen- piston pump according to the invention is advantageously designed according to each with a Zylinderöffhung whose cross-sectional area is adapted to one of the two cross-sectional areas of the end portions of the piston.
- Said sealing elements are preferably adjusted in size according to the size of the cross-sectional area of the Zylinderöffhung and the associated end portion of the piston.
- a group of vehicle brake system piston pumps each having a cylinder and a respective piston, is also provided according to the invention, which is displaceably mounted in a cylinder opening of the associated cylinder.
- Each piston has a first and a second end portion, which are designed with different sized cross-sectional areas.
- both end regions are adapted to produce a fluid-tight coupling with an associated cylinder.
- At least two cylinders are designed with Zylinderöffhungen of different sized cross-sectional area, wherein the size of the cross-sectional area of the cylinder opening is ever adapted to one of the different sized cross-sectional areas of the end portions of the piston.
- Fig. 1 is a longitudinal section of affybremsanlagen- piston pump according to the prior art.
- Fig. 2 shows the detail II of Fig. 1 in a first vehicle brake system according to the invention piston pump and
- Fig. 3 shows the detail II of Fig. 1 in a second vehicle brake system according to the invention piston pump. - A -
- a vehicle brake system piston pump 10 which comprises a pump housing 12 having a stepped bore 14 and an eccentric 16 formed therein.
- a cylinder 18 is received with a Zylinderöffhung 28, in which a piston 20 is slidably mounted.
- One of the end faces 22 of the piston 20 abuts on the eccentric 16, so that the piston 20 is displaced in the Zylinderöffhung 28 when turning the eccentric 16.
- the piston 20 is biased by a coil spring 24 against a bottom 26 of the Zylinderöffhung 28 resiliently. The coil spring 24 is thus in the cylinder chamber 28, to which the piston 20 faces with its second end face 30.
- an inlet valve 32 is further formed to the brake fluid can flow through an inlet conduit 34.
- an outlet valve 36 is formed through which can flow that brake fluid, which was conveyed from the piston 20 from the pressure chamber 28 out. The required brake fluid enters an outlet line 38.
- the thus formed and mounted piston 20 and the cylinder 18 each have a single cross-sectional area 40 in the region of the cylinder opening 28, which defines the delivery rate when the piston 20 is moved.
- FIG. 2 the detail II of FIG. 1 is simplified in a vehicle brake system piston pump 42 according to the invention, which with respect to the component 12, 14, 16, 24, 32, 34, 36 and 38 as the vehicle brake system piston pump 10 Fig. 1 is designed.
- the vehicle brake system piston pump 42 is designed differently.
- the piston 46 is stepped, designed with two different sized cross-sectional areas 48 and 50, which each form an end portion of the piston 46, are circular and correspondingly have different diameters.
- a receptacle 52 or 54 is formed, which serves for receiving a sealing element.
- a sealing element 56 in the form of a high-pressure seal in annular form is provided, which is inserted into the receptacle 52.
- the receptacle 54 on the piston 46 is empty.
- the sealing element 56 is in this way designed a seal against a diameter comparatively small Zylinderöffhung 58, which is formed in the cylinder 44.
- Fig. 3 is also the detail II, this time illustrated in another inventive vehicle brake system piston pump 60, which in turn with respect to the components 12, 14, 16, 24, 32, 34, 36 and 38 as the vehicle brake system piston pump 10 according to Fig. 1 is designed.
- piston 46 in this embodiment is the same as the piston 46 in the embodiment of FIG. 2nd
- the piston 46 is now not inserted with the end portion of the cross-sectional area 48, but with the end portion of the cross-sectional area 50 in a cylinder opening 62 of a cylinder 64.
- the cylinder opening 62 is correspondingly made larger in diameter, so that a correspondingly larger pressure chamber with respect to the cross-sectional area is created.
- a correspondingly large sealing element 66 is inserted on the receptacle 54 of the piston 46, while the receptacle 52 is left empty.
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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610035705 DE102006035705A1 (de) | 2006-08-01 | 2006-08-01 | Kolben einer Fahrzeugbremsanlagen-Kolbenpumpe |
PCT/EP2007/056698 WO2008015068A1 (fr) | 2006-08-01 | 2007-07-03 | Piston de pompe à piston pour systèmes de freinage de véhicules |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2049795A1 true EP2049795A1 (fr) | 2009-04-22 |
Family
ID=38458284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07787021A Withdrawn EP2049795A1 (fr) | 2006-08-01 | 2007-07-03 | Piston de pompe à piston pour systèmes de freinage de véhicules |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2049795A1 (fr) |
CN (1) | CN101495749A (fr) |
DE (1) | DE102006035705A1 (fr) |
WO (1) | WO2008015068A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014226316A1 (de) * | 2014-12-17 | 2016-06-23 | Robert Bosch Gmbh | Kolben-Kraftstoffpumpe für eine Brennkraftmaschine |
JP6406195B2 (ja) * | 2015-09-18 | 2018-10-17 | 株式会社デンソー | ポンプ |
DE102016224835A1 (de) * | 2016-12-13 | 2018-06-14 | Robert Bosch Gmbh | Pumpe, insbesondere Hochdruckpumpe eines Kraftstoffeinspritzsystems |
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 (de) * | 1980-07-14 | 1982-08-10 | Arcana Chem Pharm | Produktpumpe fuer eine dosiervorrichtung |
DE4439545A1 (de) * | 1994-11-05 | 1996-05-09 | Gerhard Hestermann | Vorrichtung zur teilweisen Trennung flüssiger Lösungen nach dem Prinzip der Querfiltration |
AU2980499A (en) * | 1998-03-05 | 1999-09-20 | Kelsey-Hayes Company | Hydraulic control unit for an anti-lock brake system having a pump for performing pressure dump function |
DE102004061810A1 (de) * | 2004-12-22 | 2006-07-06 | Robert Bosch Gmbh | Kolbenpumpe mit wenigstens einem Stufenkolbenelement |
-
2006
- 2006-08-01 DE DE200610035705 patent/DE102006035705A1/de not_active Withdrawn
-
2007
- 2007-07-03 CN CNA2007800286312A patent/CN101495749A/zh active Pending
- 2007-07-03 WO PCT/EP2007/056698 patent/WO2008015068A1/fr active Application Filing
- 2007-07-03 EP EP07787021A patent/EP2049795A1/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2008015068A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102006035705A1 (de) | 2008-02-07 |
WO2008015068A1 (fr) | 2008-02-07 |
CN101495749A (zh) | 2009-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE9319462U1 (de) | Kolbenpumpe zum Fördern von Hydraulikflüssigkeit in einer blockiergeschützten Fahrzeugbremsanlage | |
DE10314979B3 (de) | Kolbenpumpe | |
WO2011045171A2 (fr) | Double pompe à engrenages intérieurs | |
WO2012079815A1 (fr) | Pompe à piston équipée d'une monture | |
DE102010043531A1 (de) | Kraftstoffeinspritzsystem einer Brennkraftmaschine | |
EP2049795A1 (fr) | Piston de pompe à piston pour systèmes de freinage de véhicules | |
DE102014225982A1 (de) | Pumpe, insbesondere Kraftstoffhochdruckpumpe | |
EP1582740B1 (fr) | Pompe à haute-pression avec accumulateur haute-pression intégré | |
WO2015024649A1 (fr) | Système d'alimentation en carburant | |
EP2049793B1 (fr) | Pompe à piston pour systèmes de freinage de véhicules, munie d'un piston | |
DE19517055B4 (de) | Spritzeinrichtung zur Abgabe von Waschflüssigkeit auf eine zu reinigende Scheibe eines Fahrzeuges | |
EP2634426B1 (fr) | Pompe à deux étages | |
EP2209988A1 (fr) | Flasque d'une pompe à carburant haute pression | |
DE102009000069A1 (de) | Pumpeneinheit in einer Bremsanlage | |
DE102015101877A1 (de) | System zur Schmierstoffverteilung und Schmierstoffpumpe | |
DE102007058759A1 (de) | Rückschlagventil für eine Schmierstoffpumpe sowie Schmierstoffpumpe | |
DE102019213522A1 (de) | Getriebeölmodul für eine Getriebeeinrichtung | |
DE102005046619B4 (de) | Hydraulikblock für eine eine Schlupfregelung aufweisende, hydraulische Fahrzeugbremsanlage | |
DE102010040617A1 (de) | Ventil, insbesondere einer hydraulischen Kolbenpumpe | |
DE102011082644A1 (de) | Pumpenanordnung für ein Kraftstoffeinspritzsystem sowie Kraftstoffeinspritzsystem | |
DE102008041393A1 (de) | Kraftstoffsystem für eine Brennkraftmaschine | |
DE102016009488A1 (de) | Spin-On-Filter und Filterkopf für eine Filtervorrichtung, sowie Filtervorrichtung zum Filtern eines Fluids | |
DE102015218754A1 (de) | Hochdruckpumpe | |
DE102008040959A1 (de) | Stößelverdrehsicherung einer Hochdruckkraftstoffpumpe | |
DE102015210811A1 (de) | Vorrichtung und Verfahren zum Entleeren eines Wasserabscheiders einer Kraftstofffördereinrichtung, sowie ein Steuergerät und ein Werkstatt-Tester |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20090302 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
|
17Q | First examination report despatched |
Effective date: 20100125 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20120201 |