EP 1402174 B1 20060412 - FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
KRAFTSTOFFEINSPRITZEINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE
Title (fr)
DISPOSITIF D'INJECTION DE CARBURANT POUR MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0201799 W 20020518
- DE 20110130 U 20010619
Abstract (en)
[origin: US2004099250A1] The fuel injection system has one high-pressure fuel pump (10) and one fuel injection valve (12) for one cylinder of the engine. The high-pressure fuel pump has a pump work chamber (22), and the fuel injection valve (12) has an injection valve member (28), by which at least one injection opening (32) is controlled and which is movable in an opening direction (29), counter to the force of a closing spring (44), by the pressure prevailing in a pressure chamber (40) communicating with the pump work chamber (22); the closing spring (44) is braced on one end on the injection valve member (28) and on the other on a displaceable deflection piston (50), which on its side remote from the closing spring (44) defines a prechamber (85) that communicates with the pump work chamber (22). The deflection piston (50) is movable into a storage chamber (55) counter to the force of the closing spring (44). The prechamber (85) communicates with the pump work chamber (22) via a first throttle restriction (84), and the pressure chamber (40) of the fuel injection valve (12) communicates with the pump work chamber (22) via a second throttle restriction (93), circumventing the prechamber (85).
IPC 8 full level
F02M 51/00 (2006.01); F02M 57/02 (2006.01); F02M 45/00 (2006.01); F02M 45/04 (2006.01); F02M 45/08 (2006.01); F02M 59/36 (2006.01); F02M 61/20 (2006.01); F02B 3/06 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP US)
F02M 45/08 (2013.01 - EP US); F02M 57/02 (2013.01 - EP US); F02M 59/366 (2013.01 - EP US); F02M 61/205 (2013.01 - EP US); F02B 3/06 (2013.01 - EP US); F02M 2200/505 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
US 2004099250 A1 20040527; US 6845757 B2 20050125; DE 20110130 U1 20021024; DE 50206396 D1 20060524; EP 1402174 A1 20040331; EP 1402174 B1 20060412; HU P0303548 A2 20040301; JP 2004521248 A 20040715; PL 370296 A1 20050516; WO 02103197 A1 20021227
DOCDB simple family (application)
US 36201403 A 20030718; DE 0201799 W 20020518; DE 20110130 U 20010619; DE 50206396 T 20020518; EP 02742765 A 20020518; HU P0303548 A 20020518; JP 2003505483 A 20020518; PL 37029602 A 20020518