Global Patent Index - EP 1060334 A1

EP 1060334 A1 2000-12-20 - RADIAL PISTON PUMP FOR FUEL HIGH PRESSURE GENERATION

Title (en)

RADIAL PISTON PUMP FOR FUEL HIGH PRESSURE GENERATION

Title (de)

RADIALKOLBENPUMPE ZUR KRAFTSTOFFHOCHDRUCKERZEUGUNG

Title (fr)

POMPE A PISTONS RADIAUX POUR LA PRODUCTION D'UNE HAUTE PRESSION EN VUE DE L'ALIMENTATION EN CARBURANT

Publication

EP 1060334 A1 (DE)

Application

EP 99907315 A

Priority

  • DE 9900345 W
  • DE 19809315 A

Abstract (en)

[origin: DE19809315A1] The invention relates to a radial piston pump comprising a drive shaft mounted in a pump housing and preferably comprising a plurality of pistons (1) which are arranged in a respective cylinder chamber (2) and in a radial manner with regard to the drive shaft. A plate (3) is mounted on the piston ends facing the drive shaft. The plate comprises a pocket hole (9) in the middle, in which the end (9) of the accompanying piston (1) is accommodated. The piston (1) has a groove (7) on the circumference thereof, in which a retaining ring (6) is placed in order to fasten a plate holder (4) on the piston (1), said plate holder holding the plate (3) on the piston (1). The inventive pump is characterized in that a cylinder depression (26) is placed in the plate at the edge of the pocket hole (9), whereby the diameter of the cylinder depression (26) is dimensioned in such a way that the clearance between the retaining ring (6) and the circumference of the cylinder depression (26) is smaller than the depth of the groove (7).

IPC 1-7 (main, further and additional classification)

F04B 1/04

IPC 8 full level (invention and additional information)

F02M 59/10 (2006.01); F02M 59/06 (2006.01); F02M 59/44 (2006.01); F02M 63/02 (2006.01); F04B 1/04 (2006.01); F04B 1/047 (2006.01); F04B 1/053 (2006.01)

CPC (invention and additional information)

F02M 63/0225 (2013.01); F02M 59/06 (2013.01); F04B 1/0408 (2013.01); F04B 1/0426 (2013.01); F02M 2200/02 (2013.01)

Citation (search report)

See references of WO 9945271A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19809315 A1 19990909; EP 1060334 A1 20001220; EP 1060334 B1 20040929; JP 2002506163 A 20020226; US 6412474 B1 20020702; WO 9945271 A1 19990910

INPADOC legal status


2013-06-28 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2005-09-21 [26N] NO OPPOSITION FILED

- Effective date: 20050630

2005-08-05 [ET] FR: TRANSLATION FILED

2005-02-09 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20050116

2004-11-04 [REF] CORRESPONDS TO:

- Document: DE 59910657 P 20041104

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2004-09-29 [REG GB FG4D] EUROPEAN PATENT GRANTED

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2000-12-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001005

2000-12-20 [AK] DESIGNATED CONTRACTING STATES:

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