EP 0931219 A1 19990728 - HIGH-PRESSURE FUEL PUMP
Title (en)
HIGH-PRESSURE FUEL PUMP
Title (de)
KRAFTSTOFFHOCHDRUCKPUMPE
Title (fr)
POMPE A CARBURANT HAUTE PRESSION
Publication
Application
Priority
- DE 9800299 W 19980203
- DE 19716242 A 19970418
Abstract (en)
[origin: DE19716242A1] The invention relates to a high-pressure fuel pump with several pump pistons (19) separated from each other at different angles around an axle drive shaft (9). By means of prestressed springs, the radially inward facing ends of these pistons rest against the peripheral surface of the axle drive shaft (9), and each piston is fitted in a guide bore hole in such a way as to be axially displaceable. With the side facing away from the axle drive shaft (9), the respective pump pistons (19) define a pump working area (21) in the guide bore hole (17), which area can be alternately connected to a fuel-filled low-pressure area and to a high-pressure delivery line. To improve high-pressure tightness, the guide bore holes (17) of the pump pistons (19) and the high-pressure lines (45, 47) are arranged directly in a common, one-piece pump case (1).
IPC 1-7
IPC 8 full level
F02M 55/02 (2006.01); F02M 59/06 (2006.01); F02M 59/44 (2006.01); F04B 1/04 (2006.01); F04B 1/047 (2006.01); F04B 1/053 (2006.01); F16L 41/10 (2006.01)
CPC (source: EP)
F04B 1/0404 (2013.01); F04B 1/053 (2013.01); F16L 41/10 (2013.01)
Citation (search report)
See references of WO 9848169A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19716242 A1 19981022; EP 0931219 A1 19990728; JP 2000512715 A 20000926; WO 9848169 A1 19981029
DOCDB simple family (application)
DE 19716242 A 19970418; DE 9800299 W 19980203; EP 98909323 A 19980203; JP 54465298 A 19980203