EP 1283954 A1 20030219 - FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
KRAFTSTOFFEINSPRITZVORRICHTUNG FÜR EINE BRENNKRAFTMASCHINE
Title (fr)
SYSTEME D'INJECTION DE CARBURANT POUR UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0101680 W 20010503
- DE 10023960 A 20000516
Abstract (en)
[origin: WO0188367A1] The invention relates to a fuel injection system comprising a pump assembly (39) which feeds high pressure fuel to a high pressure conduit (10) connected to an injection valve (1), as well as a control valve (11) within which a valve member (14) exhibiting the shape of a piston and having a sealing segment (114) is guided in the bore (26), said sealing segment (114) being surrounded by a high pressure chamber (16) connected to the pump working space (48). An end of the valve member (14) protrudes in a low pressure chamber (18) connected to a fuel supply system (58). The bore (26) has a valve seat (22) which co-operates with a valve sealing face (24) formed on the valve member (14) for controlling the connection of the high pressure chamber (16) and the low pressure chamber (18). Concerning the flow direction of the fuel from the high pressure chamber (16) to the low pressure chamber (18), a throttle section (21) which is situated in the bore (26) upstream from the valve seat (22) forms with the sealing segment (114) of the valve member (14) a throttle slit (23) and therefore limits the fuel flow during the opening stroke in a stroke area of the valve member (14) so that no extra hydraulic force affects the valve member (14) during the opening stroke of said valve member (14).
IPC 1-7
IPC 8 full level
F02M 45/12 (2006.01); F02M 57/02 (2006.01); F02M 59/36 (2006.01); F02M 59/46 (2006.01); F02M 61/10 (2006.01)
CPC (source: EP KR US)
F02M 45/12 (2013.01 - EP US); F02M 57/02 (2013.01 - EP KR US); F02M 59/366 (2013.01 - EP US); F02M 59/468 (2013.01 - EP US); F02M 2200/704 (2013.01 - EP US)
Citation (search report)
See references of WO 0188367A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0188367 A1 20011122; BR 0106642 A 20020416; CN 1380940 A 20021120; DE 10023960 A1 20011122; EP 1283954 A1 20030219; JP 2003533637 A 20031111; KR 20020038691 A 20020523; US 2002113140 A1 20020822
DOCDB simple family (application)
DE 0101680 W 20010503; BR 0106642 A 20010503; CN 01801288 A 20010503; DE 10023960 A 20000516; EP 01940207 A 20010503; JP 2001584733 A 20010503; KR 20027000571 A 20020115; US 3098402 A 20020402