EP 1606511 A1 20051221 - FUEL INJECTION DEVICE FOR A COMBUSTION ENGINE
Title (en)
FUEL INJECTION DEVICE FOR A COMBUSTION ENGINE
Title (de)
KRAFTSTOFFEINSPRITZEINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE
Title (fr)
DISPOSITIF D'INJECTION DE CARBURANT POUR MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0303495 W 20031018
- DE 10311522 A 20030317
Abstract (en)
[origin: WO2004083624A1] The fuel injection device comprises a fuel high-pressure pump (10) and a fuel injection valve (12) for a cylinder of a combustion engine. The fuel high-pressure pump (10) has a pump working space (22), and the fuel injection valve (12) has an injection valve element (38) via which at least one injection opening (32) is controlled and which can be moved in a direction of opening (29) against the force of a closing spring (44) by the pressure prevailing inside a pressure space (40) having a connection (48) to the pump working space (22). The closing spring (44) is supported on the injection valve element (28) and on a displaceable accumulator plunger (50) which, via its side facing away from the closing spring (44), delimits an accumulator space (52) having a connection (54) to the pump working space (22) and which can be displaced against the force of the closing spring (44) and into a spring space (46). The spring space (46) has a connection, which is formed by a channel (76), to a low-pressure area (62) extending along the spring space (46). Said spring space (46) is connected to an end area of the channel (76) via a throttling point (78), and the channel (76), at the opposite end thereof, leads into the low-pressure area (62).
IPC 1-7
F02M 61/00; F02M 59/10; F02M 61/20; F02M 55/04; F02M 45/02; F02M 45/04
IPC 8 full level
F02M 45/08 (2006.01); F02M 55/00 (2006.01); F02M 55/04 (2006.01); F02M 57/02 (2006.01); F02M 59/36 (2006.01); F02M 61/20 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP)
F02M 45/08 (2013.01); F02M 55/002 (2013.01); F02M 55/04 (2013.01); F02M 57/023 (2013.01); F02M 61/205 (2013.01); F02M 63/0015 (2013.01); F02M 63/004 (2013.01); F02M 63/0043 (2013.01); F02M 2200/315 (2013.01)
Citation (search report)
See references of WO 2004083624A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 10311522 A1 20040930; DE 50307438 D1 20070719; EP 1606511 A1 20051221; EP 1606511 B1 20070606; WO 2004083624 A1 20040930
DOCDB simple family (application)
DE 10311522 A 20030317; DE 0303495 W 20031018; DE 50307438 T 20031018; EP 03815794 A 20031018