DE4204631A1 - Radial piston pump for vehicle anti-lock braking system - has needle bearing with rimmed deep drawn metal outer ring - Google Patents

Radial piston pump for vehicle anti-lock braking system - has needle bearing with rimmed deep drawn metal outer ring

Info

Publication number
DE4204631A1
DE4204631A1 DE4204631A DE4204631A DE4204631A1 DE 4204631 A1 DE4204631 A1 DE 4204631A1 DE 4204631 A DE4204631 A DE 4204631A DE 4204631 A DE4204631 A DE 4204631A DE 4204631 A1 DE4204631 A1 DE 4204631A1
Authority
DE
Germany
Prior art keywords
pump
outer ring
radial piston
shaft
piston pump
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Withdrawn
Application number
DE4204631A
Other languages
German (de)
Inventor
Helmut Dipl Ing Zorn
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.)
INA Waelzlager Schaeffler OHG
Original Assignee
INA Waelzlager Schaeffler OHG
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 INA Waelzlager Schaeffler OHG filed Critical INA Waelzlager Schaeffler OHG
Priority to DE4204631A priority Critical patent/DE4204631A1/en
Publication of DE4204631A1 publication Critical patent/DE4204631A1/en
Priority to DE19934304390 priority patent/DE4304390A1/en
Priority to US08/561,446 priority patent/US5642988A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • 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
    • F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/588—Races of sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/42—Pumps with cylinders or pistons

Landscapes

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

Abstract

The end of a rotating pump shaft (3) has a shaft journal (5) eccentric to the longitudinal central shaft axis. The journal (5) has a roller bearing (7) whose outer ring (9) supports the faces (13) of pump plungers (12) radially located in a pump housing (2). The roller bearing is designed as a needle bearing (6) and the outer ring (9) is made from deep drawn sheet metal with forged rims (10,11) on either side. ADVANTAGE - Compact and cheap to produce.

Description

Die Erfindung betrifft eine Radialpumpe, vorzugsweise für eine Druck­ mittelversorgung eines Antiblockiersystems von Fahrzeugbremsen, mit einer rotierenden Pumpenwelle, deren Endabschnitt einen exzentrisch zur Längsmittelachse der Pumpenwelle verlaufenden Wellenzapfen auf­ weist, wobei auf dem Wellenzapfen ein Wälzlager angeordnet ist, an dessen Außenring sich stirnförmig in einem Pumpengehäuse angeordnete, radial zur Pumpenwelle verlaufende Pumpenplunger mit ihren Stirnflä­ chen abstützen.The invention relates to a radial pump, preferably for a pressure medium supply of an anti-lock braking system of vehicle brakes, with a rotating pump shaft, the end portion of which is eccentric to the longitudinal center axis of the pump shaft extending shaft journal has, a roller bearing being arranged on the shaft journal the outer ring of which is arranged end-to-end in a pump housing, Pump plungers running radially to the pump shaft with their end faces support.

Eine Radialkolbenpumpe der vorgenannten Gattung ist aus der Druck­ schrift DE-Z "Hydraulik-Service-Grundlagen", FOS-400 der Deere & Co., Ausgabe 1977, Seiten 2-11 und 2-12 bekannt. Auf einem als Hocken bezeichneten exzentrischen Teil der Pumpenwelle ist dabei ein Wälz­ lager angeordnet, dessen spangebend aus einem rohrförmigen Rohteil hergestellter Außenring mit seiner Mantelfläche an den Stirnflächen der Pumpenplunger anliegt. Die Verwendung eines derartigen Wälzlagers mit spangebend gefertigtem Außenring ist im Vergleich zu den bei Radialkolbenpumpen auch üblichen Einsatz von Gleitlagern mit einigen gravierenden Nachteilen verbunden: Der relativ dickwandige Außenring führt aufgrund seiner taumelnd umlaufenden Masse bei einer mit hohen Drehzahlen betriebenen Radialkolbenpumpe am exzentrischen Antriebs­ element zu einer wesentlichen Erhöhung der Massenkräfte. Aus diesem Grund wurden bei Radialkolbenpumpen, die auf hohe Drehzahlen be­ schleunigt und mit hoher Drehzahl betrieben werden, bevorzugt Gleit­ lager eingesetzt. Außerdem beansprucht das Wälzlager aufgrund des dickwandigen Außenrings einen relativ großen Bauraum, und es ist bezüglich seiner Herstellkosten ungünstiger als das Gleitlager.A radial piston pump of the aforementioned type is out of pressure DE-Z "Hydraulic Service Basics", FOS-400 from Deere & Co., Edition 1977, pages 2-11 and 2-12 known. On a crouch designated eccentric part of the pump shaft is a roller Bearing arranged, the cutting from a tubular blank manufactured outer ring with its outer surface on the end faces the pump plunger is applied. The use of such a roller bearing with machined outer ring is compared to that at Radial piston pumps also use plain bearings with some common serious disadvantages: the relatively thick-walled outer ring leads due to its tumbling all around mass with a high Speed-operated radial piston pump on the eccentric drive element to a substantial increase in mass forces. For this The reason for radial piston pumps that are based on high speeds accelerated and operated at high speed, preferably glide bearings used. In addition, the roller bearing due to the thick-walled outer ring has a relatively large amount of space, and it is in terms of its manufacturing costs less favorable than the plain bearing.

Der Erfindung liegt daher die Aufgabe zugrunde, bei einer Radialkol- benpumpe der im Oberbegriff des Anspruchs 1 genannten Gattung die vorgenannten Nachteile zu vermeiden und somit eine Wälzlageranordnung auf dem exzentrischen Wellenabschnitt zu schaffen, die geringe Massen­ kräfte und eine günstige Bauraumausnutzung mit sich bringt, sowie für die Anwendung in einer in Großserie hergestellten Radialkolbenpumpe kostengünstig realisierbar ist.The invention is therefore based on the object in a radial benpumpe the kind mentioned in the preamble of claim 1 to avoid the aforementioned disadvantages and thus a rolling bearing arrangement to create the low mass on the eccentric shaft section forces and a favorable use of space, as well as for the application in a radial piston pump manufactured in large series is inexpensive to implement.

Diese Aufgabe wird an einer gattungsgemäßen Radialkolbenpumpe nach dem kennzeichnenden Teil des Anspruchs 1 dadurch gelöst, daß das Wälzlager als Nadellager ausgebildet ist, wobei der Außenring als tiefgezogener Blechring mit beidseitig spanlos geformten Borden hergestellt ist. Aufgrund der Verwendung eines Nadellagers, dessen Nadeln vorzugsweise unmittelbar auf dem Wellenzapfen abwälzen und dessen Außenring als dünnwandiges Blechteil ausgebildet ist, läßt sich die Abstützung der Pumpenplunger am Exzenter mit geringen radialen Abmessungen gestalten. Dieses Nadellager, dessen nadelförmige Wälzkörper vorzugsweise in einem Kunststoffkäfig geführt sind, weist eine geringe Masse auf, so daß aufgrund des exzentrischen Antriebs Schwingungen im Pumpenantrieb vermieden werden können. Zu beachten ist, daß bei der vorgesehenen Verwendung der Radialkolbenpumpe innerhalb eines Antiblockiersystems die Radialkolbenpumpe kurzzeitig für einen Druckaufbau im Hydrauliksy­ stem sorgen muß und daher aus dem Stillstand auf eine hohe Drehzahl beschleunigt. Während dieses Betriebs werden erfindungsgemäß die auftretenden Massenkräfte reduziert.This task is carried out on a generic radial piston pump according to the characterizing part of claim 1 solved in that the rolling bearing is designed as a needle bearing, the outer ring being a deep-drawn one Sheet metal ring is made with ribs formed without cutting on both sides. Due to the use of a needle bearing, the needles of which are preferred roll off directly on the shaft journal and its outer ring as thin-walled sheet metal part is formed, the support of the Design the pump plunger on the eccentric with small radial dimensions. This needle bearing, the needle-shaped rolling elements preferably in are guided in a plastic cage, has a low mass, so that due to the eccentric drive vibrations in the pump drive can be avoided. It should be noted that the intended Use of the radial piston pump within an anti-lock braking system the radial piston pump for a short time to build up pressure in the hydraulic system stem must worry and therefore from a standstill to a high speed accelerates. During this operation, the occurring mass forces reduced.

In weiterer Ausgestaltung der Erfindung ist nach Anspruch 2 vorgese­ hen, den Außenring des Nadellagers an seiner die Stirnflächen der Pumpenplunger berührenden Mantelfläche mit einer Mittenrauhtiefe Ra 0,8µm auszubilden. Ein mit entsprechender Rauhtiefe ausgebil­ deter Außenring eignet sich für die Führung der Pumpenplunger, da nur geringe Relativbewegungen zwischen dem Außenring und den Stirnflächen der Pumpenplunger auftreten. Es läßt sich somit ein kostenmäßig gün­ stiges Wälzlager für die in Großserie an Kraftfahrzeugen verwendete Radialkolbenpumpe vorsehen.In a further embodiment of the invention, according to claim 2, the outer ring of the needle bearing is formed on its outer surface contacting the end faces of the pump plungers with a mean roughness depth R a 0.8 µm. An outer ring designed with a corresponding roughness depth is suitable for guiding the pump plungers, since only slight relative movements occur between the outer ring and the end faces of the pump plungers. It can thus provide a cost-effective rolling bearing for the radial piston pump used in large series of motor vehicles.

Zur weiteren Erläuterung der Erfindung wird auf die Zeichnung ver­ wiesen, in der ein Ausführungsbeispiel der Erfindung vereinfacht dargestellt ist. Es zeigen:To further explain the invention, reference is made to the drawing pointed, in which an embodiment of the invention is simplified is shown. Show it:

Fig. 1 einen Teillängsschnitt durch eine Radialkolbenpumpe mit einem auf einem exzentrischen Wellenzapfen einer Pum­ penwelle angeordneten Nadellager und Fig. 1 shows a partial longitudinal section through a radial piston pump with a needle shaft arranged on an eccentric shaft journal of a pump and

Fig. 2 eine vergrößerte Teilansicht des in der Radialkolben­ pumpe nach Fig. 1 verwendeten Nadellagers. Fig. 2 is an enlarged partial view of the needle bearing used in the radial piston pump of FIG. 1.

In der Fig. 1 ist mit 1 eine Radialkolbenpumpe bezeichnet, in deren Gehäuse 2 eine Pumpenwelle 3 über ein Kugellager 4 gelagert ist. Die Pumpenwelle 3 weist an ihrem Endabschnitt einen Wellenzapfen 5 auf, der exzentrisch zur Längsmittelachse der Pumpenwelle 3 angeordnet ist. Auf diesem Wellenzapfen 5 ist ein Nadellager 6 angeordnet, das aus zylindrischen, nadelförmigen Wälzkörpern 7, einem diese Wälzkörper 7 aufnehmenden Käfig 8 und einem Außenring 9 besteht. Der Außenring 9 weist stirnseitige Borde 10 und 11 auf.In Fig. 1 is a radial piston pump is denoted by 1, a pump shaft 3 is supported via a ball bearing 4 in the housing 2. The pump shaft 3 has at its end section a shaft journal 5 which is arranged eccentrically to the longitudinal center axis of the pump shaft 3 . On this shaft journal 5 , a needle bearing 6 is arranged, which consists of cylindrical, needle-shaped rolling elements 7 , a cage 8 receiving these rolling elements 7 and an outer ring 9 . The outer ring 9 has end flanges 10 and 11 .

Am Außenmantel des Außenrings 9 sind mehrere Pumpenplunger 12 geführt, von denen in der Schnittdarstellung nur zwei Pumpenplunger 12 sichtbar sind. Diese Pumpenplunger 12 verlaufen radial und sternförmig zu dem Außenring 9 des Nadellagers 6 und berühren den Außenring 9 mit ihren Stirnflächen 13. Jeder Pumpenplunger 12 ist in einem zylindrischen Druckraum 14, der unmittelbar im Gehäuse 2 ausgebildet ist, angeord­ net. Aufgrund der oszillierenden Bewegung der Pumpenplunger 12 wird über ein jedem Pumpenplunger 12 zugeordnetes Einlaßventil 15 hydrauli­ sches Druckmedium angesaugt, das über nicht näher dargestellte Bohrun­ gen und Druckleitungen in das Drucksystem eines Antiblockiersystems von Fahrzeugbremsen geleitet wird. Am Außenring 9 sind Blattfedern 16 geführt, die jeweils in eine Nut 17 des Pumpenplungers 12 eingreifen. Diese Blattfedern 16, sorgen dafür, daß die Pumpenplunger 12 stets mit ihren Stirnflächen 13 am Außenring 9 geführt sind.A plurality of pump plungers 12 are guided on the outer casing of the outer ring 9 , of which only two pump plungers 12 are visible in the sectional view. These pump plungers 12 run radially and in a star shape to the outer ring 9 of the needle bearing 6 and touch the outer ring 9 with their end faces 13 . Each pump plunger 12 is in a cylindrical pressure chamber 14 , which is formed directly in the housing 2 , angeord net. Due to the oscillating movement of the pump plunger 12 , hydraulic pressure medium is sucked in via an inlet valve 15 assigned to each pump plunger 12 , which is passed through bores and pressure lines (not shown) into the pressure system of an anti-lock braking system of vehicle brakes. Leaf springs 16 are guided on the outer ring 9 and each engage in a groove 17 of the pump plunger 12 . These leaf springs 16 ensure that the pump plungers 12 are always guided with their end faces 13 on the outer ring 9 .

Die Ausbildung des Nadellagers ist der Fig. 2 zu entnehmen. Der Außenring 9 des Nadellagers 6 ist als tiefgezogener Blechring herge­ stellt, dessen Borde 10 und 11 ebenfalls durch spanlose Verformung dieses sehr dünnwandigen Blechrings geschaffen sind. Die Oberfläche des Außenrings 9 wird im Anschluß an die spanlose Formgebung nicht mechanisch bearbeitet. Aufgrund des sehr dünnwandigen Außenrings 9 und seiner spanlosen Formgebung läßt sich eine kostengünstige Lagerung der Pumpenplunger 12 gegenüber dem exzentrischen Wellenzapfen 5 realisie­ ren, die auch eine sehr geringe Bauhöhe und Masse hat. In vorteilhaf­ ter Weise kann dabei die Oberfläche des Außenrings 9 einen Mitten­ rauhwert von Ra ≧ 0,8µm haben, da die Pumpenplunger 12 gegenüber dem Außenring 9 nur geringe Relativbewegungen ausführen. Wesentlich ist auch eine Gesamthärtung des Außenrings 9, da dadurch ein Verschleiß der eventuell am Gehäuse 2 anlaufenden Borde 10 und 11 vermieden werden kann. The configuration of the needle bearing can be seen in FIG. 2. The outer ring 9 of the needle bearing 6 is a deep-drawn sheet metal ring Herge, the rims 10 and 11 are also created by non-cutting deformation of this very thin-walled sheet metal ring. The surface of the outer ring 9 is not machined after the non-cutting shaping. Due to the very thin-walled outer ring 9 and its non-cutting shape, an inexpensive mounting of the pump plunger 12 relative to the eccentric shaft journal 5 can be realized, which also has a very low overall height and mass. In an advantageous manner, the surface of the outer ring 9 can have a mean roughness value of R a ≧ 0.8 μm, since the pump plungers 12 perform only slight relative movements with respect to the outer ring 9 . An overall hardening of the outer ring 9 is also essential, since wear of the rims 10 and 11 possibly starting on the housing 2 can thereby be avoided.

BezugszeichenlisteReference symbol list

 1 Radialkolbenpumpe
 2 Gehäuse
 3 Pumpenwelle
 4 Kugellager
 5 Wellenzapfen
 6 Nadellager
 7 Wälzkörper
 8 Käfig
 9 Außenring
10 Bord von 9
11 Bord von 9
12 Pumpenplunger
13 Stirnfläche von 12
14 zylindrischer Druckraum
15 Einlaßventil
16 Blattfedern
17 Nut 1 radial piston pump
2 housings
3 pump shaft
4 ball bearings
5 shaft journals
6 needle bearings
7 rolling elements
8 cage
9 outer ring
10 board of 9
11 board of 9
12 pump plungers
13 end face of 12
14 cylindrical pressure chamber
15 inlet valve
16 leaf springs
17 groove

Claims (2)

1. Radialkolbenpumpe (1), vorzugsweise für eine Druckmittelversorgung eines Antiblockiersystems von Fahrzeugbremsen, mit einer rotierenden Pumpenwelle (3), deren Endabschnitt einen exzentrisch zur Längsmittel­ achse der Pumpenwelle (3) verlaufenden Wellenzapfen (5) aufweist, wobei auf dem Wellenzapfen (5) ein Wälzlager angeordnet ist, an dessen Außenring (9) sich sternförmig in einem Pumpengehäuse (2) angeordnete, radial zur Pumpenwelle (3) verlaufende Pumpenplunger (12) mit ihren Stirnflächen (13) abstützen, dadurch gekennzeichnet, daß das Wälzlager als Nadellager (6) ausgebildet ist, wobei der Außenring (9) als tief­ gezogener Blechring mit spanlos geformten beidseitigen Borden (10, 11) hergestellt ist.1. Radial piston pump ( 1 ), preferably for a pressure medium supply to an anti-lock braking system of vehicle brakes, with a rotating pump shaft ( 3 ), the end section of which has an eccentric to the longitudinal center axis of the pump shaft ( 3 ) shaft journal ( 5 ), with on the shaft journal ( 5 ) A roller bearing is arranged, on the outer ring ( 9 ) of which, in the form of a star in a pump housing ( 2 ) and radially extending to the pump shaft ( 3 ), pump plungers ( 12 ) are supported with their end faces ( 13 ), characterized in that the roller bearing as a needle bearing ( 6 ) is formed, the outer ring ( 9 ) being produced as a deep-drawn sheet metal ring with non-cutting shaped rims ( 10 , 11 ) on both sides. 2. Radialkolbenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß der Außenring (9) zumindest an seiner den Stirnflächen (13) der Pumpen­ plunger (12) zugewandten Mantelfläche eine Rauhtiefe mit einem Mitten­ rauhwert Ra 0,8µm aufweist.2. Radial piston pump according to claim 1, characterized in that the outer ring ( 9 ) at least on its end faces ( 13 ) of the pump plunger ( 12 ) facing jacket surface has a roughness depth with a mean roughness value R a 0.8 µm.
DE4204631A 1991-02-15 1992-02-15 Radial piston pump for vehicle anti-lock braking system - has needle bearing with rimmed deep drawn metal outer ring Withdrawn DE4204631A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE4204631A DE4204631A1 (en) 1992-02-15 1992-02-15 Radial piston pump for vehicle anti-lock braking system - has needle bearing with rimmed deep drawn metal outer ring
DE19934304390 DE4304390A1 (en) 1992-02-15 1993-02-13 Radial piston pump - has needle bearing as roller bearing, with outer ring of deep-drawn metal plate, and needles rolling off shaft journal
US08/561,446 US5642988A (en) 1991-02-15 1995-11-21 Radial piston pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4204631A DE4204631A1 (en) 1992-02-15 1992-02-15 Radial piston pump for vehicle anti-lock braking system - has needle bearing with rimmed deep drawn metal outer ring

Publications (1)

Publication Number Publication Date
DE4204631A1 true DE4204631A1 (en) 1992-10-15

Family

ID=6451850

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4204631A Withdrawn DE4204631A1 (en) 1991-02-15 1992-02-15 Radial piston pump for vehicle anti-lock braking system - has needle bearing with rimmed deep drawn metal outer ring

Country Status (1)

Country Link
DE (1) DE4204631A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425402A1 (en) * 1993-08-06 1996-04-04 Teves Gmbh Alfred Hydraulic pump for hydraulic brake system
WO1996023974A1 (en) * 1995-02-03 1996-08-08 Robert Bosch Gmbh Reciprocating pump
DE19711557A1 (en) * 1997-03-20 1998-09-24 Schaeffler Waelzlager Ohg Radial piston pump
DE19839430A1 (en) * 1998-08-29 2000-03-02 Schaeffler Waelzlager Ohg Radial piston pump includes combined roller bearing and eccentric bush, improving on earlier designs in terms of axial length and simplicity
DE19858996A1 (en) * 1998-12-21 2000-06-29 Schaeffler Waelzlager Ohg Bearing unit for shaft, with outer rings of needle bearings in form of deep-drawn unstressed shells with edging on both sides
DE10111574A1 (en) * 2001-03-10 2002-09-12 Ina Schaeffler Kg Storage of a machine part
DE102004005204A1 (en) * 2004-02-03 2005-08-11 Continental Teves Ag & Co. Ohg Radial piston pump has rotating multi-eccentric on rotationally secured cylindrical outer sleeve with elastic means for guiding and supporting rolling bearing in vehicle anti-lock braking systems
DE102007015687A1 (en) * 2007-03-31 2008-10-02 Schaeffler Kg Radial rolling bearing for an eccentric drive, eccentric drive for a radial piston pump and anti-lock braking system with the eccentric drive
US7604465B2 (en) * 2006-06-14 2009-10-20 Mitsubishi Heavy Industries, Ltd. Fluid machine and scroll compressor having a crankshaft with a large diameter shaft section
EP0925446B2 (en) † 1997-07-11 2010-10-20 Robert Bosch Gmbh Radial piston pump for fuel high-pressure supply
CN111692062A (en) * 2019-03-14 2020-09-22 贝尔&科佩GmbH公司 Lubricant pump with automatically connectable pump unit and method of connecting pump unit to lubricant pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6932757U (en) * 1969-08-19 1969-12-11 Duerkoppwerke NEEDLE BEARING
DE3321757A1 (en) * 1982-06-19 1983-12-22 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Rolling bearing
DE3701857A1 (en) * 1987-01-23 1988-08-04 Teves Gmbh Alfred RADIAL PISTON PUMP
DE3840691A1 (en) * 1988-12-02 1990-06-07 Teves Gmbh Alfred RADIAL PISTON PUMP

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6932757U (en) * 1969-08-19 1969-12-11 Duerkoppwerke NEEDLE BEARING
DE3321757A1 (en) * 1982-06-19 1983-12-22 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Rolling bearing
DE3701857A1 (en) * 1987-01-23 1988-08-04 Teves Gmbh Alfred RADIAL PISTON PUMP
DE3840691A1 (en) * 1988-12-02 1990-06-07 Teves Gmbh Alfred RADIAL PISTON PUMP

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DE-Buch: ALBERT,M.KÖTTRITSCH,H.: Wälzlager, Springer-Verlag 1987, S.154 u.S.369 *
INA, Maßkatalog D302, 1968, S.24 u.S.129 *
Nadella-Nadellager, Katalog 1971, S.4 *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425402A1 (en) * 1993-08-06 1996-04-04 Teves Gmbh Alfred Hydraulic pump for hydraulic brake system
WO1996023974A1 (en) * 1995-02-03 1996-08-08 Robert Bosch Gmbh Reciprocating pump
US5897302A (en) * 1995-02-03 1999-04-27 Robert Bosch Gmbh Reciprocating piston pump with radial cylinders based by a wire hoop spring against an eccentric shaft
DE19711557A1 (en) * 1997-03-20 1998-09-24 Schaeffler Waelzlager Ohg Radial piston pump
US6003430A (en) * 1997-03-20 1999-12-21 Ina Walzlager Schaeffler Ohg Radial piston pump
EP0925446B2 (en) † 1997-07-11 2010-10-20 Robert Bosch Gmbh Radial piston pump for fuel high-pressure supply
DE19839430A1 (en) * 1998-08-29 2000-03-02 Schaeffler Waelzlager Ohg Radial piston pump includes combined roller bearing and eccentric bush, improving on earlier designs in terms of axial length and simplicity
US6202538B1 (en) 1998-08-29 2001-03-20 Ina Walzlaber Schaeffler Ohg Radial piston pump
DE19839430C2 (en) * 1998-08-29 2002-01-24 Schaeffler Waelzlager Ohg Radial piston pump
DE19858996B4 (en) * 1998-12-21 2007-10-18 Schaeffler Kg Arrangement for supporting a shaft
DE19858996A1 (en) * 1998-12-21 2000-06-29 Schaeffler Waelzlager Ohg Bearing unit for shaft, with outer rings of needle bearings in form of deep-drawn unstressed shells with edging on both sides
US6273616B1 (en) 1998-12-21 2001-08-14 Ina Walzlager Schaeffler Ohg Mounting arrangement for a shaft
DE10111574A1 (en) * 2001-03-10 2002-09-12 Ina Schaeffler Kg Storage of a machine part
DE10111574B4 (en) * 2001-03-10 2010-08-19 Schaeffler Technologies Gmbh & Co. Kg Bearing arrangement for a radial piston pump
WO2002073050A1 (en) * 2001-03-10 2002-09-19 Ina-Schaeffler Kg Bearing of a machine part
DE102004005204A1 (en) * 2004-02-03 2005-08-11 Continental Teves Ag & Co. Ohg Radial piston pump has rotating multi-eccentric on rotationally secured cylindrical outer sleeve with elastic means for guiding and supporting rolling bearing in vehicle anti-lock braking systems
US7604465B2 (en) * 2006-06-14 2009-10-20 Mitsubishi Heavy Industries, Ltd. Fluid machine and scroll compressor having a crankshaft with a large diameter shaft section
DE102007015687A1 (en) * 2007-03-31 2008-10-02 Schaeffler Kg Radial rolling bearing for an eccentric drive, eccentric drive for a radial piston pump and anti-lock braking system with the eccentric drive
DE102007015687B4 (en) * 2007-03-31 2020-02-20 Schaeffler Technologies AG & Co. KG Anti-lock braking system with a radial piston pump with an eccentric drive with a radial roller bearing
CN111692062A (en) * 2019-03-14 2020-09-22 贝尔&科佩GmbH公司 Lubricant pump with automatically connectable pump unit and method of connecting pump unit to lubricant pump

Similar Documents

Publication Publication Date Title
DE4430909A1 (en) Unit consisting of drive motor and radial piston pump
DE4204631A1 (en) Radial piston pump for vehicle anti-lock braking system - has needle bearing with rimmed deep drawn metal outer ring
EP0983438B1 (en) Radial piston pump for high pressure fuel supply
DE4136996B4 (en) Disk drive
DE19850920B4 (en) Radial piston pump
DE102007015687A1 (en) Radial rolling bearing for an eccentric drive, eccentric drive for a radial piston pump and anti-lock braking system with the eccentric drive
DE102010015417A1 (en) Piston for a radial piston machine
DE19711557A1 (en) Radial piston pump
DE2527189A1 (en) HYDRAULIC PUMP WITH SWASHPLATE
DE4304390A1 (en) Radial piston pump - has needle bearing as roller bearing, with outer ring of deep-drawn metal plate, and needles rolling off shaft journal
DE102008048495A1 (en) Hydrostatic machine i.e. axial piston machine, for use as hydraulic motor that is driven by diesel engine of work machine has fluid flow guided over bearing part that is arranged for producing pumping effect to leakage oil connection
DE102007011319A1 (en) Pump, in particular high-pressure fuel pump
EP1301708B1 (en) Radial piston pump
EP0301309B1 (en) Axial piston machine with differential pistons
DE102004005204A1 (en) Radial piston pump has rotating multi-eccentric on rotationally secured cylindrical outer sleeve with elastic means for guiding and supporting rolling bearing in vehicle anti-lock braking systems
DE19963481A1 (en) Eccentric consisting of drive shaft and eccentric component for use in motorised pump in controlled braking system for a car has eccentric component made from annular sheet metal part which is pressed on to shaft
DE102013222397B4 (en) Eccentric drive of a hydraulic unit of a vehicle brake system with a plain bearing having an eccentric inner ring, the inner ring end faces of which are partially encompassed by an outer ring
DE102018220449A1 (en) Tilt segment bearings
EP0202451B1 (en) Fuel injection pump for internal-combustion engines
DE19854415A1 (en) Axial piston drive to be attached to wheel has bearings positioned radial between cylinder drum and bearing bush in order to reduce overall size
DE1041362B (en) Storage of the traction sheave in axial piston machines
DE102012221765A1 (en) Pump, particularly high-pressure fuel pump for fuel injection system, has support element with opening between recess and side on which pump piston is supported, where opening extends approximately along recess
DE102004022431B4 (en) Radial piston pump with cam ring
WO2024126410A1 (en) Radial piston compressor
DE102013222464A1 (en) Motor shaft arrangement of a hydraulic unit of a vehicle brake system

Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8105 Search report available
8143 Withdrawn due to claiming internal priority