EP 1507972 B1 20051228 - FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (en)
FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (de)
KRAFTSTOFFEINSPRITZVENTIL FüR BRENNKRAFTMASCHINEN
Title (fr)
SOUPAPE D'INJECTION DE CARBURANT DE MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0300973 W 20030325
- DE 10222196 A 20020518
Abstract (en)
[origin: WO03098028A1] The invention relates to a fuel injection valve for internal combustion engines, comprising a housing (1) provided with a borehole (16) containing a longitudinally displaceable outer valve needle (20) and an inner valve needle (22) which can be longitudinally displaced in the outer valve needle, said valve needles each controlling at least one injection opening (30) with the combustion chamber end thereof. The pressure in a control chamber (50) exerts a closing force at least indirectly on the outer valve needle (20), and the pressure in a control pressure chamber (52) exerts a closing force at least indirectly on the inner valve needle (22). The housing (1) contains a control valve (58) comprising a valve chamber (68) which has a valve member (60), said valve chamber (68) being provided with a connection (59) to the leakage chamber (78), a continuously open connection to the control chamber (50), and a connection to the control pressure chamber (52). The valve member (60) in the valve chamber (68) can be displaced between two end positions. In the first end position, said valve member (60) closes the connection (59) to the leakage chamber (78) and opens the connection (74) to the control pressure chamber (52), and in the second end position, closes the connection (74) to the control pressure chamber (78) and opens the connection to the leakage chamber (78).
IPC 1-7
IPC 8 full level
F02M 61/10 (2006.01); F02M 45/00 (2006.01); F02M 45/12 (2006.01); F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 51/00 (2006.01); F02M 51/06 (2006.01); F02M 61/08 (2006.01); F02M 61/18 (2006.01); F02M 61/20 (2006.01); F02M 59/46 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP US)
F02M 45/00 (2013.01 - EP US); F02M 45/12 (2013.01 - EP US); F02M 47/027 (2013.01 - EP US); F02M 61/205 (2013.01 - EP US); F02M 59/468 (2013.01 - EP US); F02M 61/1806 (2013.01 - EP US); F02M 63/0026 (2013.01 - EP US); F02M 2200/46 (2013.01 - EP US)
Citation (examination)
WO 03069151 A1 20030821 - BOSCH GMBH ROBERT [DE], et al
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
WO 03098028 A1 20031127; DE 10222196 A1 20031127; DE 50302074 D1 20060202; EP 1507972 A1 20050223; EP 1507972 B1 20051228; JP 2005526211 A 20050902; US 2005224598 A1 20051013; US 7021567 B2 20060404
DOCDB simple family (application)
DE 0300973 W 20030325; DE 10222196 A 20020518; DE 50302074 T 20030325; EP 03752691 A 20030325; JP 2004505526 A 20030325; US 51482704 A 20041117