EP 0977942 A1 20000209 - 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 POUR MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- DE 9801649 W 19980617
- DE 19752496 A 19971127
Abstract (en)
[origin: DE19752496A1] The invention relates to a fuel injection valve for internal combustion engines, comprising a valve member (11) that can be displaced in the axial direction in a valve body (1). Said valve member cooperates with a valve seat surface (15) on the valve body (1) and with a tight surface (13) to control an injection orifice (17). The end of said member facing away from the combustion chamber is impinged upon by a valve spring (31) arranged in a spring chamber (29) in the closed position. The valve member (11) has a pressure shoulder (21) working in the opened direction, which projects into a pressure chamber (19) that can be filled with high pressure fuel. The spring chamber (19) is connected to the pressure chamber (19) through a choke gap and is closed in relation to a fuel return system so that the spring chamber (29) acts as a hydraulic damper when the valve member (11) lifts to the opened position.
IPC 1-7
IPC 8 full level
F02M 45/08 (2006.01); F02M 45/12 (2006.01); F02M 61/10 (2006.01); F02M 61/20 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP US)
F02M 45/12 (2013.01 - EP US); F02M 61/205 (2013.01 - EP US); F02M 2200/304 (2013.01 - EP US)
Citation (search report)
See references of WO 9928616A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 19752496 A1 19990602; EP 0977942 A1 20000209; JP 2001509858 A 20010724; US 6269795 B1 20010807; WO 9928616 A1 19990610
DOCDB simple family (application)
DE 19752496 A 19971127; DE 9801649 W 19980617; EP 98936193 A 19980617; JP 52959899 A 19980617; US 34175699 A 19990716