DE102013226041A1 - piston pump - Google Patents
piston pump Download PDFInfo
- Publication number
- DE102013226041A1 DE102013226041A1 DE102013226041.5A DE102013226041A DE102013226041A1 DE 102013226041 A1 DE102013226041 A1 DE 102013226041A1 DE 102013226041 A DE102013226041 A DE 102013226041A DE 102013226041 A1 DE102013226041 A1 DE 102013226041A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- pump
- throttle
- damper body
- fluid
- 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
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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
- 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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- 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
- B60T8/4068—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 the additional fluid circuit comprising means for attenuating pressure pulsations
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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
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
- F04B11/0016—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a fluid spring
- F04B11/0025—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a fluid spring the spring fluid being in direct contact with the pumped fluid
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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
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
- F04B11/0033—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a mechanical spring
-
- 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
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/0091—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using a special shape of fluid pass, e.g. throttles, ducts
-
- 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
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
- F04B53/125—Reciprocating valves
- F04B53/126—Ball valves
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
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)
Abstract
Die Erfindung betrifft eine Kolbenpumpe (1) für eine Schlupfregelung einer hydraulischen Fahrzeugbremsanlage. Die Erfindung schlägt vor, einen Pumpenkolben (2) als Hohlkolben auszubilden, in dem ein beispielsweise schlauchförmiger elastischer Dämpferkörper (8) angeordnet ist, der Bremsflüssigkeit enthält und durch eine Drossel (12) mit einem Pumpeneinlass kommuniziert, um Druckschwingungen und Druckstöße im Pumpeneinlass zu dämpfen.The invention relates to a piston pump (1) for a slip control of a hydraulic vehicle brake system. The invention proposes to form a pump piston (2) as a hollow piston, in which an example tubular elastic damper body (8) is arranged containing brake fluid and communicates through a throttle (12) with a pump inlet to dampen pressure oscillations and pressure surges in the pump inlet ,
Description
Die Erfindung betrifft eine Kolbenpumpe für eine hydraulische Fahrzeugbremsanlage mit den Merkmalen des Oberbegriffs des Anspruchs 1. In schlupfgeregelten hydraulischen Fahrzeugbremsanlagen dienen derartige Kolbenpumpen zum Fördern von Bremsflüssigkeit während einer Schlupfregelung und/oder zu einem Bremsdruckaufbau. In Fremdkraft-Fahrzeugbremsanlagen dienen solche Kolbenpumpen ebenfalls zu einem Bremsdruckaufbau, wobei Fremdkraft-Fahrzeugbremsanlagen schlupfgeregelt sein können und die Kolbenpumpe in diesem Fall auch zur Schlupfregelung eingesetzt wird. Es ist üblicherweise in jedem Bremskreis eine Kolbenpumpe vorhanden.The invention relates to a piston pump for a hydraulic vehicle brake system having the features of the preamble of claim 1. In slip-controlled hydraulic vehicle brake systems such piston pumps are used for conveying brake fluid during a slip control and / or to a brake pressure build-up. In foreign-power vehicle brake systems, such piston pumps also serve to build up a brake pressure, wherein foreign-vehicle brake systems can be slip-controlled and in this case the piston pump is also used for slip control. There is usually a piston pump in each brake circuit.
Stand der TechnikState of the art
Die Offenlegungsschrift
Offenbarung der ErfindungDisclosure of the invention
Ein Pumpenkolben der erfindungsgemäßen Kolbenpumpe mit den Merkmalen des Anspruchs 1 weist einen Hohlraum auf, der mit Fluid kommuniziert, das von der Kolbenpumpe gefördert wird. Beispielsweise kann ein Pumpeneinlass oder ein Pumpenauslass durch den Pumpenkolben erfolgen und der Hohlraum im Pumpenkolben Fluid enthalten, das von der Kolbenpumpe gefördert wird. In dem Hohlraum im Pumpenkolben ist ein Dämpferkörper angeordnet, der von dem Fluid beaufschlagt ist, das von der Kolbenpumpe gefördert wird. Der Dämpferkörper ist beweglich, er wird bei einer Druckänderung im Fluid, das ihn beaufschlagt, bewegt und dämpft die Druckänderung, beispielsweise Druckschwingungen und/oder Druckstöße. Die Beweglichkeit des Dämpferkörpers kann beispielsweise durch eine beispielsweise biegeschlaffe oder elastische Verformbarkeit des Dämpferkörpers und/oder durch eine Beweglichkeit des Dämpferkörpers im Hohlraum des Pumpenkolbens bewirkt sein. A pump piston of the piston pump according to the invention with the features of claim 1 has a cavity which communicates with fluid, which is conveyed by the piston pump. For example, a pump inlet or a pump outlet may be through the pump piston and the cavity in the pump piston may contain fluid conveyed by the piston pump. In the cavity in the pump piston, a damper body is arranged, which is acted upon by the fluid which is conveyed by the piston pump. The damper body is movable, it is at a pressure change in the fluid, which acts on him, moves and dampens the pressure change, such as pressure oscillations and / or pressure surges. The mobility of the damper body can be effected for example by an example pliable or elastic deformability of the damper body and / or by a mobility of the damper body in the cavity of the pump piston.
Außerdem weist der Pumpenkolben der erfindungsgemäßen Kolbenpumpe eine Drossel auf, durch die der Hohlraum im Pumpenkolben mit dem Fluid kommuniziert, das von der Kolbenpumpe gefördert wird. Die Drossel wird von einer Querschnittsverengung gebildet, sie bildet einen Strömungswiderstand für Fluid, das beim Fördern von Fluid mit der Kolbenpumpe den Hohlraum durchströmt und/oder bei einer Druckänderung in den Hohlraum im Pumpenkolben hinein oder aus dem Hohlraum herausströmt. Die Dämpfungswirkung für Druckänderungen in dem Fluid, das von der Kolbenpumpe gefördert wird, wird durch den Strömungswiderstand, den die Drossel bewirkt, verbessert. Ein weiterer Vorteil der Erfindung ist, dass sich durch die Kombination der Drossel und des Dämpferkörpers eine Dämpfungsfrequenz besser einstellen und an Gegebenheiten anpassen lässt als nur mit einem Dämpferkörper. Mit Dämpfungsfrequenz ist eine Frequenz einer Druckschwingung gemeint, bei der eine Dämpfungswirkung groß oder maximal ist. Durch die Kombination des Dämpferkörpers mit der Drossel lässt sich eine Dämpfungswirkung, insbesondere die Dämpfungsfrequenz gut auf Gegebenheiten oder Vorgaben abstimmen. Ein weiterer Vorteil ist, dass Druckänderungen am Entstehungsort gedämpft werden, wodurch einer Ausbreitung entgegengewirkt und eine Geräuschbildung verringert wird. Zusätzlich hat die Erfindung den Vorteil, dass der Dämpferkörper und die Drossel in den Pumpenkolben integriert sind und somit keinen Bauraum außerhalb des Pumpenkolbens beanspruchen. In addition, the pump piston of the piston pump according to the invention has a throttle through which the cavity in the pump piston communicates with the fluid which is conveyed by the piston pump. The throttle is formed by a cross-sectional constriction, it forms a flow resistance for fluid which flows through the cavity during the delivery of fluid with the piston pump and / or flows in a pressure change in the cavity in the pump piston or out of the cavity. The damping effect of pressure changes in the fluid delivered by the piston pump is enhanced by the flow resistance that the throttle causes. Another advantage of the invention is that can be better adjusted by the combination of the throttle and the damper body, a damping frequency and adapt to circumstances than just with a damper body. By damping frequency is meant a frequency of a pressure vibration at which a damping effect is large or maximum. By combining the damper body with the throttle, a damping effect, in particular the damping frequency, can be adapted well to conditions or specifications. Another advantage is that pressure changes at the point of origin are damped, which counteracts propagation and reduces noise. In addition, the invention has the advantage that the damper body and the throttle are integrated into the pump piston and thus claim no space outside of the pump piston.
Die Unteransprüche haben vorteilhafte Ausgestaltungen und Weiterbildungen der im Anspruch 1 angegebenen Erfindung zum Gegenstand. The dependent claims have advantageous refinements and developments of the invention specified in claim 1 to the subject.
Eine bevorzugte Ausgestaltung der Erfindung gemäß Anspruch 3 sieht einen Pumpenkolben mit einem Ventilsitzteil vor, das einen Ventilsitz für ein Steuerventil der Kolbenpumpe und die Drossel aufweist. Das Steuerventil steuert eine Durchströmungsrichtung der Kolbenpumpe, ist also insbesondere ein Einlassoder ein Auslassventil und beispielsweise als Rückschlagventil ausgeführt. Diese Ausgestaltung der Erfindung verringert die Anzahl der Bauteile des Pumpenkolbens und vereinfacht seine Herstellung und seinen Zusammenbau. A preferred embodiment of the invention according to claim 3 provides a pump piston with a valve seat part which has a valve seat for a control valve of the piston pump and the throttle. The control valve controls a flow direction of the piston pump, so in particular an inlet or an outlet valve and designed for example as a check valve. This embodiment of the invention reduces the number of components of the pump piston and simplifies its manufacture and assembly.
Die erfindungsgemäße Kolbenpumpe ist insbesondere für eine hydraulische, schlupfgeregelte und/oder Fremdkraft-Fahrzeugbremsanlage vorgesehen. Sie kann auch als Pumpenelement aufgefasst werden. The piston pump according to the invention is provided in particular for a hydraulic, slip-controlled and / or external-power vehicle brake system. It can also be understood as a pump element.
Kurze Beschreibung der ZeichnungShort description of the drawing
Die Erfindung wird nachfolgend anhand dreier in der Zeichnung dargestellter Ausführungsformen näher erläutert. Die drei Figuren zeigen Achsschnitte dreier Kolbenpumpen gemäß der Erfindung. The invention will be described below with reference to three embodiments shown in the drawing explained in more detail. The three figures show axial sections of three piston pumps according to the invention.
Ausführungsformen der ErfindungEmbodiments of the invention
Die in
Der Pumpenkolben
Das offene Ende des Dämpferkörpers
An dem im Zylinder
Auf einer dem Pumpenkolben
Zur Verwendung in einer nicht dargestellten Schlupfregelung einer hydraulischen Fahrzeugbremsanlage wird die Kolbenpumpe
Aufgrund der hin- und hergehenden Hubbewegung des Pumpenkolbens
Der Innenraum des schlauchförmigen und elastischen Dämpferkörpers
Bei der nachfolgenden Beschreibung der
Anstelle des schlauchförmigen Dämpferkörpers
In der in
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19752545 A1 [0002] DE 19752545 A1 [0002]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013226041.5A DE102013226041A1 (en) | 2013-12-16 | 2013-12-16 | piston pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013226041.5A DE102013226041A1 (en) | 2013-12-16 | 2013-12-16 | piston pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102013226041A1 true DE102013226041A1 (en) | 2015-06-18 |
Family
ID=53192357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102013226041.5A Pending DE102013226041A1 (en) | 2013-12-16 | 2013-12-16 | piston pump |
Country Status (1)
Country | Link |
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DE (1) | DE102013226041A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109789865A (en) * | 2016-09-26 | 2019-05-21 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Brake apparatus for hydraulic motor vehicle braking system |
CN110030182A (en) * | 2017-12-13 | 2019-07-19 | 罗伯特·博世有限公司 | Piston pump for the pressure medium in discharge pressure medium loop |
RU213037U1 (en) * | 2022-03-31 | 2022-08-22 | Общество с ограниченной ответственностью "Басма" | PUMP CHECK VALVE WITH DAMPER |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19752545A1 (en) | 1997-03-21 | 1998-09-24 | Bosch Gmbh Robert | Piston pump for vehicle brake system |
-
2013
- 2013-12-16 DE DE102013226041.5A patent/DE102013226041A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19752545A1 (en) | 1997-03-21 | 1998-09-24 | Bosch Gmbh Robert | Piston pump for vehicle brake system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109789865A (en) * | 2016-09-26 | 2019-05-21 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Brake apparatus for hydraulic motor vehicle braking system |
CN109789865B (en) * | 2016-09-26 | 2022-04-01 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Braking device for a hydraulic motor vehicle braking system |
CN110030182A (en) * | 2017-12-13 | 2019-07-19 | 罗伯特·博世有限公司 | Piston pump for the pressure medium in discharge pressure medium loop |
RU213037U1 (en) * | 2022-03-31 | 2022-08-22 | Общество с ограниченной ответственностью "Басма" | PUMP CHECK VALVE WITH DAMPER |
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