EP 1283355 B1 20051005 - Fuel injector
Title (en)
Fuel injector
Title (de)
Kraftstoffeinspritzventil
Title (fr)
Injecteur de carburant
Publication
Application
Priority
GB 0119218 A 20010807
Abstract (en)
[origin: EP1283355A1] A fuel injector comprising a valve needle (14) which is slidable within a bore (12) and engageable with a valve needle seating to control fuel delivery through an outlet opening and a first supply passage (18) for delivering fuel under high pressure to the bore from a pump chamber (20). The valve needle (14) has a surface associated therewith which is exposed to fuel pressure within a control chamber (32). A control valve arrangement (36) is provided to control fuel pressure within the control chamber so as to control movement of the valve needle (14) relative to the valve needle seating. A spill/fill passage (28) is provided through which fuel at relatively low pressure is delivered to the pump chamber (20) under the control of a spill valve arrangement (60). The spill/fill passage is provided with a venturi pump (48) in communication with a backleak passage (46) through which fuel flows to a low pressure fuel reservoir. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 47/02 (2006.01); F02M 55/00 (2006.01); F02M 57/02 (2006.01); F02M 59/36 (2006.01)
CPC (source: EP)
F02M 47/027 (2013.01); F02M 55/00 (2013.01); F02M 57/02 (2013.01); F02M 59/366 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 1283355 A1 20030212; EP 1283355 B1 20051005; DE 60206453 D1 20060216; DE 60206453 T2 20060720; GB 0119218 D0 20010926
DOCDB simple family (application)
EP 02255320 A 20020730; DE 60206453 T 20020730; GB 0119218 A 20010807