EP 0656474 B1 19990217 - Fuel injector for internal combustion engines
Title (en)
Fuel injector for internal combustion engines
Title (de)
Kraftstoff-Einspritzdüse für Brennkraftmaschinen
Title (fr)
Injecteur de carburant pour moteurs à combustion interne
Publication
Application
Priority
DE 4340883 A 19931201
Abstract (en)
[origin: EP0656474A1] A fuel injector for internal combustion engines has a nozzle body (10) with a valve seat (18) arranged on the combustion chamber side and an outwards opening valve needle (15) with a closing head (16), which has a closing cone (17) interacting with the valve seat (18). In the closing head (16) at least one spray hole (25), directed outwards to the lifting axis thereof, is arranged, which is opened by a control edge (24) on the nozzle body as a function of the fuel admission pressure. In order to minimise any deviation of the spray jet emerging from the spray hole (25) relative to the alignment of the spray hole, the spray hole (25) is divided into at least two or more parallel passages (52, 53), which are separated from one another by a dividing wall (55) and are successively exposed by the control edge (24) during the opening lift of the valve needle. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 61/04 (2006.01); F02M 61/08 (2006.01); F02M 61/18 (2006.01)
CPC (source: EP US)
F02M 61/045 (2013.01 - EP US); F02M 61/08 (2013.01 - EP US); F02M 61/182 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0656474 A1 19950607; EP 0656474 B1 19990217; DE 4340883 A1 19950608; DE 59407825 D1 19990325; JP H07189866 A 19950728; US 5497947 A 19960312
DOCDB simple family (application)
EP 94117580 A 19941108; DE 4340883 A 19931201; DE 59407825 T 19941108; JP 29503294 A 19941129; US 29403394 A 19940824