EP 1604112 A1 20051214 - RADIAL PISTON PUMP
Title (en)
RADIAL PISTON PUMP
Title (de)
RADIALKOLBENPUMPE
Title (fr)
POMPE A PISTONS RADIAUX
Publication
Application
Priority
- EP 2004001702 W 20040220
- DE 10310123 A 20030307
Abstract (en)
[origin: WO2004079190A1] The invention relates to a radial piston pump for generation of high fuel pressures in fuel injection systems, comprising a pump housing (1), a pump shaft and at least one cylinder insert (2), arranged radially to the pump shaft. A cylinder chamber (3) is located within the cylinder insert (2) in which a piston (4) can move back and forth. The cylinder insert (2) is connected with a front face (5) to a flattening (6) of the pump housing (1), by connecting means. The cylinder insert (2) comprises an inlet port (8) and a high pressure port (9). The front face (5) of the cylinder insert (2) and/or the flattening (6) of the pump housing (1) comprise precisely machined raised sealing regions (12, 13, 14) for sealing the cylinder insert (2) against the pump housing (1), which are relatively small in relation to the total front face (5) of the cylinder insert (2) and the total flattening (6) of the pump housing (1). A high surface pressure is thus achieved in the sealing region.
IPC 1-7
IPC 8 full level
F04B 1/04 (2006.01); F04B 53/22 (2006.01)
CPC (source: EP US)
F04B 1/0443 (2013.01 - EP US); F04B 1/0448 (2013.01 - EP US); F04B 53/22 (2013.01 - EP US)
Citation (search report)
See references of WO 2004079190A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2004079190 A1 20040916; CN 1756905 A 20060405; CN 1756905 B 20110608; DE 10310123 A1 20040923; DE 502004004234 D1 20070816; EP 1604112 A1 20051214; EP 1604112 B1 20070704; JP 2006519950 A 20060831; JP 4372782 B2 20091125; US 2005287016 A1 20051229; US 7415920 B2 20080826
DOCDB simple family (application)
EP 2004001702 W 20040220; CN 200480006106 A 20040220; DE 10310123 A 20030307; DE 502004004234 T 20040220; EP 04713078 A 20040220; JP 2006500039 A 20040220; US 22048905 A 20050907