EP0088677B1 - Pompe modulaire - Google Patents

Pompe modulaire Download PDF

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Publication number
EP0088677B1
EP0088677B1 EP83400410A EP83400410A EP0088677B1 EP 0088677 B1 EP0088677 B1 EP 0088677B1 EP 83400410 A EP83400410 A EP 83400410A EP 83400410 A EP83400410 A EP 83400410A EP 0088677 B1 EP0088677 B1 EP 0088677B1
Authority
EP
European Patent Office
Prior art keywords
bore
return spring
piston
pumping unit
excentric
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.)
Expired
Application number
EP83400410A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0088677A1 (fr
Inventor
Jean-Claude Maillochaud
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0088677A1 publication Critical patent/EP0088677A1/fr
Application granted granted Critical
Publication of EP0088677B1 publication Critical patent/EP0088677B1/fr
Expired legal-status Critical Current

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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
    • F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders

Definitions

  • Patent DE-A-1 925 307 discloses a radial pump intended to be connected to several uses, comprising a body in which is rotatably mounted a shaft carrying an eccentric or a control cam and which is provided with a series radial bores arranged circumferentially around the cam or the eccentric, pistons each of which is disposed in a bore and is subjected to the action of a return spring, and discharge valves each assigned to one pistons, each bore being able to receive a pumping unit comprising an outer jacket which carries an outlet fitting, in which a valve seat is fixed, a discharge valve and its return spring being disposed between the connector and the valve body , and in which are mounted a piston and its return spring.
  • Patent FR-A-2 348 378 further describes a radial piston pump, in which pistons are arranged in liners mounted in radial bores of the pump body. These shirts can possibly be replaced by caps. It is thus possible to adapt the pump to the needs of the use and consequently to manufacture this pump in large series, at a reduced cost price.
  • patent FR-A-2 118 637 describes a means of manufacturing a ring suitable for retaining a shaft in a bore, which consists in forming in the shaft and in the bore grooves or annular grooves and filling the cavity thus formed by injection of a plastic material.
  • the present invention relates to a radial pump of the type indicated above, in which each bore can receive at will either a sealing plug or a pumping unit and the various elements of which are assembled very quickly.
  • This pump is characterized in that the pumping unit or the plug has grooves which, when a pumping unit or a plug is placed in a bore, are located opposite a groove of this bore, in constituting a toric cavity, the various toric cavities being connected to the same supply duct opening to the outside by a pouring nozzle, a plastic material being poured into the nozzle after the pumping units or plugs have been placed so to simultaneously form a series of rods which secure the pumping units and the plugs with the body.
  • the pump according to the invention comprises a body 1 in which is rotatably mounted a shaft 2 carrying an eccentric 3; on this are mounted a ring 4 in bronze and a wear ring 5 in steel held by two washers 6.
  • the shaft 2 rests on two plain bearings mounted one directly in the housing, the other in a ring 7 forming a spacer.
  • the portion of the shaft located beyond this ring passes through a seal 8 and carries a drive pulley 9.
  • the annular chamber 10 which surrounds the eccentric 3 is connected to a supply duct 11. It is moreover connected by a bore 12 of the shaft to a chamber 13 provided at the end of the shaft in the body 1 and ensuring the lubrication of the end bearing.
  • the body 1 has radial bores 1a a which communicate with the annular chamber 10 and can either be closed by plugs, or carry a pumping unit 31.
  • the body is provided with two bores, each of which carries a pumping unit.
  • Each pumping unit comprises a jacket 14 which is engaged in one of the bores 1a. It can be in abutment on the ring 7 or have a shoulder in abutment on the pump body 1. Its cylindrical part of reduced diameter is provided with a first groove containing an O-ring seal 15 and a second groove arranged opposite a second complementary groove provided in bore 1a. The assembly of the two grooves constitutes a toric cavity which is connected by a conduit 16 to a pouring nozzle 17. After fitting the jackets 14 of the pumping units in their bores, a plastic material was poured into the nozzle 17; this plastic material filled the toroidal cavities and formed in each of them a rod 18 which definitively fixes the jacket 14 in its bore.
  • a piston 19 consisting of a blind tube whose closed face is supported on the eccentric 3.
  • the cylindrical part of the piston has holes 20 uncovered or not depending on the position of the piston and adapted to put chamber 10 in communication with the interior of the piston.
  • a return spring 21 which is interposed between a volume compensator 33 bearing on the bottom of the piston and a ring 22 immobilized in the jacket 14 by a metal rod 23.
  • the ring 22 is pierced with an axial hole 24 and its face opposite the piston 19 forms a seat for a valve 25 capable of closing the hole 24.
  • This valve is movable inside an opening 26 formed at the cutter in an outlet nozzle 27 which is fitted into the jacket 14 and is immobilized in position by a pin 28.
  • the valve 25 is subjected to the opposing actions of the pressure inside the piston and of a return spring 29 bearing on the end piece 27.
  • the jacket 14 is immobilized by a metal rod 30. It is thus possible, if desired, to remove the jacket and replace it with a plug 32, as shown in Figure 4 Furthermore, the jacket 14 does not have a shoulder and is in abutment against the spacer ring 7.
  • the shaft 2 could carry two or more eccentrics 3 each actuating their own pistons.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP83400410A 1982-03-09 1983-03-01 Pompe modulaire Expired EP0088677B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8204278 1982-03-09
FR8204278A FR2523222A1 (fr) 1982-03-09 1982-03-09 Pompe modulaire

Publications (2)

Publication Number Publication Date
EP0088677A1 EP0088677A1 (fr) 1983-09-14
EP0088677B1 true EP0088677B1 (fr) 1986-05-28

Family

ID=9271971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400410A Expired EP0088677B1 (fr) 1982-03-09 1983-03-01 Pompe modulaire

Country Status (3)

Country Link
EP (1) EP0088677B1 (enrdf_load_stackoverflow)
DE (1) DE3363674D1 (enrdf_load_stackoverflow)
FR (1) FR2523222A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009003052B4 (de) 2009-05-13 2018-05-03 Robert Bosch Gmbh Hochdruckpumpe, insbesondere Radialkolbenpumpe oder Reihenkolbenpumpe, mit einem Antriebs-Nocken dessen Seitenfläche mit einer Lagerscheibe verbunden ist

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2142575C1 (ru) * 1997-05-06 1999-12-10 Открытое акционерное общество "Павловский машиностроительный завод "Восход" Электронасосный агрегат
DE10356373A1 (de) 2003-12-03 2005-07-07 Obrist Engineering Gmbh Hubkolbenmaschine
DE102019210666A1 (de) * 2019-07-18 2021-01-21 Robert Bosch Gmbh Pumpeneinrichtung für ein Bremssystem eines Kraftfahrzeugs, Bremssystem

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118637A5 (enrdf_load_stackoverflow) * 1970-12-18 1972-07-28 Schaeffler Ohg Industriewerk

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1020897A (fr) * 1949-07-29 1953-02-11 Smith S Jacking Systems Ltd Perfectionnements aux pompes
DE923589C (de) * 1949-11-18 1955-02-17 Heilmeier & Weinlein O H G Hydraulik-Kolbenpumpe
DE1294813B (de) * 1959-07-29 1969-05-08 Gaenger Hans Exzentergetriebene Radialkolbenpumpe
FR1537827A (fr) * 1967-07-17 1968-08-30 Perfectionnements aux pompes hydrauliques
DE1925307A1 (de) * 1969-05-17 1970-11-19 Langen & Co Hydraulische Kolbenpumpe,insbesondere Radialkolbenpumpe
US3682565A (en) * 1970-08-31 1972-08-08 Donald L Yarger Multiple piston pump apparatus
DE2144796A1 (de) * 1971-09-08 1973-03-15 Langen & Co Hydraulische radialkolbenpumpe
DE2616435A1 (de) * 1976-04-14 1977-10-27 Fichtel & Sachs Ag Radialkolbenpumpe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118637A5 (enrdf_load_stackoverflow) * 1970-12-18 1972-07-28 Schaeffler Ohg Industriewerk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009003052B4 (de) 2009-05-13 2018-05-03 Robert Bosch Gmbh Hochdruckpumpe, insbesondere Radialkolbenpumpe oder Reihenkolbenpumpe, mit einem Antriebs-Nocken dessen Seitenfläche mit einer Lagerscheibe verbunden ist

Also Published As

Publication number Publication date
FR2523222B1 (enrdf_load_stackoverflow) 1984-04-27
FR2523222A1 (fr) 1983-09-16
EP0088677A1 (fr) 1983-09-14
DE3363674D1 (en) 1986-07-03

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