DE4241826A1 - High-pressure pump having a radial piston and an attenuation layer - Google Patents

High-pressure pump having a radial piston and an attenuation layer

Info

Publication number
DE4241826A1
DE4241826A1 DE19924241826 DE4241826A DE4241826A1 DE 4241826 A1 DE4241826 A1 DE 4241826A1 DE 19924241826 DE19924241826 DE 19924241826 DE 4241826 A DE4241826 A DE 4241826A DE 4241826 A1 DE4241826 A1 DE 4241826A1
Authority
DE
Germany
Prior art keywords
radial piston
bearing
eccentric
bearing ring
damping layer
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.)
Ceased
Application number
DE19924241826
Other languages
German (de)
Inventor
Peter Dr Volz
Klaus Dr Kurr
Hans-Gerd Dr Eckel
Stefan Burger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Teves AG and Co OHG
Original Assignee
Carl Freudenberg KG
ITT Automotive Europe GmbH
Alfred Teves GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carl Freudenberg KG, ITT Automotive Europe GmbH, Alfred Teves GmbH filed Critical Carl Freudenberg KG
Priority to DE19924241826 priority Critical patent/DE4241826A1/en
Priority claimed from DE19924241825 external-priority patent/DE4241825A1/en
Publication of DE4241826A1 publication Critical patent/DE4241826A1/en
Ceased legal-status Critical Current

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Reciprocating Pumps (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The invention is based on the main patent, its object being to present a further design option for reducing noise in high-pressure pumps having radial pistons. The solution, in principle, is to divide the bearing ring into an outer section (15) and an inner section (16) and to insert, between the two sections, an annular attenuation layer (damping layer) which is attached or injected there by means of a suitable adhesion method. <IMAGE>

Description

Die Erfindung betrifft eine Hochdruckpumpe mit Radialkolben. Bei derartigen Pumpen kann es aufgrund der erheblichen Kraftschwankungen der insbesondere auf die Kolben ausgeübten Kräfte zu unangenehmen Geräuschbildungen führen. Derartige Geräusche sind insbesondere bei geregelten Bremssystemen sehr nachteilig, da sie gerade dann auftreten, wenn die Be­ dienungsperson eines Fahrzeugs die Regelwirkung des Bremssy­ stems in Anspruch nimmt. Da die modernen leistungsstarken Fahrzeuge oft sehr leise laufen und ABS- bzw. ASR-Systeme nur selten in Anspruch genommen werden, können die dabei entstehenden Geräusche nachteilige Wirkungen auf das Fahr­ verhalten der Bedienungsperson haben.The invention relates to a high-pressure pump with a radial piston. With such pumps, it can be due to the considerable Force fluctuations of those exerted in particular on the pistons Forces lead to unpleasant noise. Such Noises are especially with regulated brake systems very disadvantageous, since they occur especially when the loading operator of a vehicle the control effect of the Bremssy stems. Because the modern powerful Vehicles often run very quietly and ABS or ASR systems they can only be used rarely resulting noise adverse effects on driving behavior of the operator.

Die Erfindung geht daher aus von einer Radialkolbenpumpe, wie sie im Anspruch 1 des Hauptpatentes (P 7360) geschildert ist und hat sich zur Aufgabe gestellt, weitere Lösungen zur Reduzierung der entstehenden Geräusche aufzuzeigen.The invention is therefore based on a radial piston pump, as described in claim 1 of the main patent (P 7360) is and has set itself the task of further solutions for To show a reduction in the noise generated.

Die Aufgabe wird durch die sich aus dem kennzeichnenden Teil des Hauptanspruchs ergebende Merkmalskombination gelöst. Die Erfindung besteht im Prinzip also darin, den zwischen Exzen­ ter und Kolben liegenden Lagerring mit mindestens einer dämpfenden Zwischenschicht zu versehen. Der Vorteil liegt dabei darin, daß die Dämpfungsschicht möglichst nahe an den Exzenter und damit die Kraftquelle gelegt ist, welche zu der Bildung der Geräusche führt. Selbstverständlich kann der La­ gerring auch mit mehreren zueinander zentrisch angeordneten ringförmigen Dämpfungsschichten vorgesehen sein.The task is characterized by the characteristic part the combination of features resulting from the main claim. The In principle, therefore, the invention is that between the exzen ter and piston lying bearing ring with at least one to provide a cushioning intermediate layer. The advantage lies thereby in that the damping layer as close as possible to the  Eccentric and thus the source of power is laid, which to the Formation of the noise leads. Of course, the La gerring also with several arranged centrally annular damping layers may be provided.

Eine besonders einfache Ausführungsform erhält man durch die Anwendung der Merkmale nach Anspruch 2. Dabei kann die Dämp­ fungsschicht aus elastomerem Material nicht nur auf den in­ neren Abschnitt des Lagerkolbens aufgeschrumpft sein, son­ dern auch zwischen die beiden Lagerabschnitte eingespritzt werden oder gegenüber den beiden Lagerabschnitten aufvulka­ nisiert werden.A particularly simple embodiment is obtained from the Application of the features according to claim 2. The damper layer of elastomeric material not only on the in ners section of the bearing piston shrunk, son also injected between the two bearing sections become or against the two storage sections be nized.

An sich kann zwischen dem Lagerring und dem Exzenter ein Gleitlager vorgesehen sein. Eine besonders reibungsarme Aus­ bildung erhält man aber durch Anwendung der Merkmalskombina­ tion nach Anspruch 3.In itself can be between the bearing ring and the eccentric Plain bearings can be provided. A particularly low-friction off education is obtained by using the combination of features tion according to claim 3.

Ein Ausführungsbeispiel nach der Erfindung wird nachfolgend anhand der Zeichnung erläutert.An embodiment according to the invention is as follows explained using the drawing.

Die Zeichnung zeigt einen Ausschnitt eines Pumpengehäuses 1, in dem über Radialbohrungen die Kolben 2, 3 in radialer Rich­ tung geführt sind. Zwischen den Kolben 2, 3 greift ein Exzen­ ter 5 über ein Nadellager 7 und einen Lagerring 8 an den Kolben 2, 3 an. Der Exzenter 5 bildet die Verlängerung einer Antriebswelle 6, die aus dem Gehäuse eines Antriebsmotors 4 ragt. Für die Erfindung sehr wesentlich ist nun, daß der La­ gerring 8 in einen äußeren Lagerabschnitt 15 und einen inne­ ren Lagerabschnitt 16 geteilt ist. Zwischen den beiden La­ gerabschnitten 15, 16 ist eine elastomere Schicht 17 einge­ fügt, die beispielsweise auf den inneren Lagerabschnitt 16 aufgeschrumpft, zwischen die beiden Lagerabschnitte 15, 16 einvulkanisiert oder zwischen diese eingespritzt sein kann. Der Lagerring wird über ein Wälzlager, vorzugsweise Nadella­ ger 7, durch den Exzenter 5 angetrieben. Es kann aber statt des Wälzlagers 7 auch nur eine Gleitlagerung der Kolben 2, 3 auf dem äußeren Lagerabschnitt 15 vorgesehen sein. In diesem Falle ist es günstig, wenn die Bodenfläche des Fußteils 9 der beiden Kolben nachgearbeitet ist, um die Reibungsverlu­ ste zu vermindern.The drawing shows a section of a pump housing 1 , in which the pistons 2 , 3 are guided in radial direction via radial bores. Between the pistons 2, 3 a Exzen ter 5 through a needle bearing 7 and a bearing ring 8 to the pistons 2, 3 engages. The eccentric 5 forms the extension of a drive shaft 6 which protrudes from the housing of a drive motor 4 . It is very important for the invention that the La gerring 8 is divided into an outer bearing section 15 and an inner bearing section 16 . Between the two bearing sections 15 , 16 an elastomeric layer 17 is inserted, which, for example, shrunk onto the inner bearing section 16 , vulcanized between the two bearing sections 15 , 16 or injected between them. The bearing ring is driven by a roller bearing, preferably Nadella ger 7 , by the eccentric 5 . However, instead of the roller bearing 7 , only a plain bearing of the pistons 2 , 3 can be provided on the outer bearing section 15 . In this case, it is advantageous if the bottom surface of the foot part 9 of the two pistons is reworked in order to reduce the friction losses.

Entsprechendes gilt für die Innenfläche des inneren Lagerab­ schnitts 16, der über die Oberfläche des sich drehenden Ex­ zenters 5 gleitet.The same applies to the inner surface of the inner Lagerab section 16 which slides over the surface of the rotating Ex 5 .

Claims (3)

1. Durch einen Antriebsmotor angetriebene Radialkolbenpumpe, insbesondere Hochdruckkolbenpumpe (1) bei über die mit einem Exzenter (5) versehene Antriebswelle (6) des An­ triebsmotors (4) zumindest ein Radialkolben (2) in einer Kolbenbohrung hin- und herbewegt wird nach Anspruch 1 des Hauptpatents, wobei in den Kraftübertragungsweg zwischen Antriebswelle (6) und den Kolben (2, 3) zumindest eine Dämpfungsschicht (10, 12, 13) aus elastomerem Material ein­ gefügt ist, dadurch gekennzeichnet, daß die Dämpfungsschicht (17) in einen den Exzenter umgeben­ den Lagerring eingefügt ist.1. Radial piston pump driven by a drive motor, in particular high-pressure piston pump ( 1 ) in the case of the drive shaft ( 6 ) provided with an eccentric ( 5 ) of the drive motor ( 4 ), at least one radial piston ( 2 ) is moved back and forth in a piston bore according to claim 1 of the main patent, wherein in the power transmission path between the drive shaft ( 6 ) and the pistons ( 2 , 3 ) at least one damping layer ( 10 , 12 , 13 ) made of elastomeric material is inserted, characterized in that the damping layer ( 17 ) in one of the eccentric surrounded the bearing ring is inserted. 2. Radialkolbenpumpe nach Anspruch 1, dadurch gekenn­ zeichnet, daß die ringförmige Dämpfungsschicht (17) in den Lagerring (8) eingeschrumpft, einvulkanisiert oder eingespritzt ist.2. Radial piston pump according to claim 1, characterized in that the annular damping layer ( 17 ) in the bearing ring ( 8 ) is shrunk, vulcanized or injected. 3. Radialkolbenpumpe nach einem der vorangegangenen Ansprü­ che, dadurch gekennzeichnet, daß zwischen einen die Kolben antreibenden Exzenter (5) und den Lager­ ring (8) ein Gleitlager oder ein Nadellager (7) eingefügt ist.3. Radial piston pump according to one of the preceding Ansprü surface, characterized in that between a piston driving the eccentric ( 5 ) and the bearing ring ( 8 ) a slide bearing or a needle bearing ( 7 ) is inserted.
DE19924241826 1992-12-11 1992-12-11 High-pressure pump having a radial piston and an attenuation layer Ceased DE4241826A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924241826 DE4241826A1 (en) 1992-12-11 1992-12-11 High-pressure pump having a radial piston and an attenuation layer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924241826 DE4241826A1 (en) 1992-12-11 1992-12-11 High-pressure pump having a radial piston and an attenuation layer
DE19924241825 DE4241825A1 (en) 1992-12-11 1992-12-11 Radial piston pump for controlled brake systems - has elastomeric damping layer between drive shaft and piston

Publications (1)

Publication Number Publication Date
DE4241826A1 true DE4241826A1 (en) 1994-08-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19924241826 Ceased DE4241826A1 (en) 1992-12-11 1992-12-11 High-pressure pump having a radial piston and an attenuation layer

Country Status (1)

Country Link
DE (1) DE4241826A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4336673A1 (en) * 1993-10-27 1995-05-04 Zahnradfabrik Friedrichshafen Radial piston pump
DE10126151A1 (en) * 2001-05-30 2002-12-05 Zf Batavia Llc Slide ring for a radial piston pump and device for its assembly
WO2012013452A1 (en) * 2010-07-27 2012-02-02 Robert Bosch Gmbh High pressure pump
WO2012072282A1 (en) * 2010-11-30 2012-06-07 Continental Teves Ag & Co. Ohg Motor-pump assembly
DE102018222497A1 (en) * 2018-12-20 2020-06-25 Robert Bosch Gmbh Device for transmitting the rotary movement of a drive unit to a piston of a piston / cylinder arrangement which can be driven for a translational movement and an electronically slip-controllable brake system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727174A1 (en) * 1987-08-14 1989-02-23 Bosch Gmbh Robert CONVEYOR PUMP FOR BRAKE SYSTEMS
EP0197320B1 (en) * 1985-04-12 1989-06-07 Robert Bosch Gmbh Radial piston pump
DE3840691A1 (en) * 1988-12-02 1990-06-07 Teves Gmbh Alfred RADIAL PISTON PUMP
DE3900327A1 (en) * 1989-01-07 1990-07-12 Bosch Gmbh Robert DEVICE FOR AN ANTI-BLOCKING SYSTEM

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0197320B1 (en) * 1985-04-12 1989-06-07 Robert Bosch Gmbh Radial piston pump
DE3727174A1 (en) * 1987-08-14 1989-02-23 Bosch Gmbh Robert CONVEYOR PUMP FOR BRAKE SYSTEMS
DE3840691A1 (en) * 1988-12-02 1990-06-07 Teves Gmbh Alfred RADIAL PISTON PUMP
DE3900327A1 (en) * 1989-01-07 1990-07-12 Bosch Gmbh Robert DEVICE FOR AN ANTI-BLOCKING SYSTEM

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4336673A1 (en) * 1993-10-27 1995-05-04 Zahnradfabrik Friedrichshafen Radial piston pump
DE4336673C2 (en) * 1993-10-27 1999-08-12 Zahnradfabrik Friedrichshafen Radial piston pump
DE10126151A1 (en) * 2001-05-30 2002-12-05 Zf Batavia Llc Slide ring for a radial piston pump and device for its assembly
WO2012013452A1 (en) * 2010-07-27 2012-02-02 Robert Bosch Gmbh High pressure pump
CN103026048A (en) * 2010-07-27 2013-04-03 罗伯特·博世有限公司 High pressure pump
CN103026048B (en) * 2010-07-27 2015-12-16 罗伯特·博世有限公司 High-pressure service pump
WO2012072282A1 (en) * 2010-11-30 2012-06-07 Continental Teves Ag & Co. Ohg Motor-pump assembly
CN103237702A (en) * 2010-11-30 2013-08-07 大陆-特韦斯贸易合伙股份公司及两合公司 Motor-pump assembly
CN103237702B (en) * 2010-11-30 2016-11-16 大陆-特韦斯贸易合伙股份公司及两合公司 Motor pump assembly
DE102018222497A1 (en) * 2018-12-20 2020-06-25 Robert Bosch Gmbh Device for transmitting the rotary movement of a drive unit to a piston of a piston / cylinder arrangement which can be driven for a translational movement and an electronically slip-controllable brake system

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