EP 1757799 A1 20070228 - FUEL INJECTION VALVE
Title (en)
FUEL INJECTION VALVE
Title (de)
KRAFTSTOFFEINSPRITZVENTIL
Title (fr)
SOUPAPE D"INJECTION DE CARBURANT
Publication
Application
Priority
- JP 2005010532 W 20050602
- JP 2004165706 A 20040603
Abstract (en)
In a fuel injector (30) in which a valve body (36) which allows a valve piston (35) to be slidably inserted therein is arranged in the inside of an injector housing (32), one end of the valve piston (35) is arranged to face a control pressure chamber (364) formed in the inside of the valve body (36), and a high-pressure fuel is supplied to the inside of the control pressure chamber (364) from the injector housing (32), an annular stepped portion (321A) is formed in the inside of the injector housing (32) and an annular projecting portion (361A) which corresponds to the annular stepped portion (321A) is formed on the valve body (36), the annular projecting portion (361A) is seated on the annular stepped portion (321A) by way of a seal plate (50) having an orifice (501), and a high-pressure fuel is supplied to the inside of the control pressure chamber (364) from the injector housing (32) side by way of the orifice (501). Due to such a constitution, leaking of a high-pressure fuel between the injector housing (32) and the valve body (36) can be surely prevented.
IPC 8 full level
F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 51/00 (2006.01); F02M 55/00 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP KR)
F02M 47/00 (2013.01 - KR); F02M 47/02 (2013.01 - KR); F02M 47/027 (2013.01 - EP); F02M 51/00 (2013.01 - KR); F02M 55/005 (2013.01 - EP); F02M 63/0015 (2013.01 - EP); F02M 63/004 (2013.01 - EP); F02M 63/0043 (2013.01 - EP); F02M 2200/16 (2013.01 - EP); F02M 2547/003 (2013.01 - EP)
Citation (search report)
See references of WO 2005119047A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1757799 A1 20070228; CN 1969120 A 20070523; JP 2005344622 A 20051215; KR 20070037612 A 20070405; WO 2005119047 A1 20051215
DOCDB simple family (application)
EP 05748486 A 20050602; CN 200580017958 A 20050602; JP 2004165706 A 20040603; JP 2005010532 W 20050602; KR 20077000140 A 20070103