EP 1068448 A1 20010117 - RADIAL PISTON PUMP FOR HIGH-PRESSURE FUEL SUPPLY
Title (en)
RADIAL PISTON PUMP FOR HIGH-PRESSURE FUEL SUPPLY
Title (de)
RADIALKOLBENPUMPE ZUR KRAFTSTOFFHOCHDRUCKVERSORGUNG
Title (fr)
POMPE A PISTONS RADIAUX POUR L'ALIMENTATION HAUTE PRESSION EN CARBURANT
Publication
Application
Priority
- DE 9900344 W 19990209
- DE 19814506 A 19980401
Abstract (en)
[origin: DE19814506A1] The invention relates to a radial piston pump for high-pressure fuel supply in internal combustion engine fuel injection systems, especially common-rail injection systems. A disk (14) is placed on each radially arranged piston in a respective cylinder chamber. In relation to the above-mentioned invention it was noted that traditionally used disks (14) often became damaged, especially in the centre, during operation. The aim of the invention is thus to avoid damage to said disks. This is achieved by designing the centre of the disk (14) in such a way that the strain arising therein during operation is reduced. By reducing the strain on the centre of the disk (25,26) it is possible to extend the operational life of said disk (14) in an advantageous manner. The disk (14) functions in an impeccable manner even at high pressures of up to 2,000 bars.
IPC 1-7
IPC 8 full level
F02M 59/06 (2006.01); F02M 59/10 (2006.01); F04B 1/04 (2006.01); F04B 1/047 (2006.01); F04B 1/053 (2006.01); F04B 53/00 (2006.01)
CPC (source: EP US)
F04B 1/0426 (2013.01 - EP US)
Citation (search report)
See references of WO 9950555A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19814506 A1 19991014; DE 59906437 D1 20030904; EP 1068448 A1 20010117; EP 1068448 B1 20030730; JP 2002510015 A 20020402; JP 4288000 B2 20090701; US 6350107 B1 20020226; WO 9950555 A1 19991007
DOCDB simple family (application)
DE 19814506 A 19980401; DE 59906437 T 19990209; DE 9900344 W 19990209; EP 99907314 A 19990209; JP 2000541427 A 19990209; US 64735800 A 20001117