EP 1382838 B1 20170816 - Fuel injector
Title (en)
Fuel injector
Title (de)
Brennstoffeinspritzventil
Title (fr)
Injecteur de carburant
Publication
Application
Priority
DE 10232193 A 20020716
Abstract (en)
[origin: EP1382838A2] The valve has an actuator with a piston, a lifting piston interacting with the actuator piston via a pressure medium, a valve needle interacting with the lifting piston with a valve closure body, a valve seat body and a seal seat. The actuator piston has at least one step bounding on a damping chamber spatially separate from a working chamber and shaped or arranged so that the pressure medium can flow to or from it via a choke point. The valve has a piezoelectric, electrostrictive or magnetostrictive actuator (4), an actuator piston (9), a lifting piston (15) interacting with the actuator piston via a pressure medium and working chamber (26), a valve needle (20) interacting with the lifting piston with a valve closure body (22), a valve seat body (21) and a seal seat. The actuator piston has at least one stage bounding on a damping chamber (27) spatially separate from the working chamber and shaped or arranged so that the pressure medium can flow to or from it via a choke point (30).
IPC 8 full level
F02M 47/04 (2006.01); F02M 51/06 (2006.01); F02M 55/04 (2006.01); F02M 61/06 (2006.01); F02M 61/08 (2006.01); F02M 61/16 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP)
F02M 51/0603 (2013.01); F02M 61/08 (2013.01); F02M 61/167 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1382838 A2 20040121; EP 1382838 A3 20040421; EP 1382838 B1 20170816; DE 10232193 A1 20040205; JP 2004052767 A 20040219
DOCDB simple family (application)
EP 03012488 A 20030602; DE 10232193 A 20020716; JP 2003196577 A 20030714