EP 1537326 B1 20090708 - 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 0301333 W 20030424
- DE 10240827 A 20020904
Abstract (en)
[origin: WO2004027255A1] The invention relates to a fuel-injection valve for internal combustion engines. Said valve comprises a valve body (1), in which a plunger-type valve needle (5) is positioned in a bore (3) so that it can be displaced longitudinally. The valve needle (5) has a valve sealing surface (7) comprising at least one conical surface (30; 32). The valve seat surface (7) of said valve needle (5) co-operates with a conical valve seat (9) that is configured in the valve body (1), in such a way that when the valve needle (5) is lifted from the valve seat (9), fuel streams from a pressure chamber (19) between the conical surface (7) and the valve seat (9) through at least one injection orifice (11). Several depressions (40), whose respective depths are different in at least two places, are configured around the periphery of the conical surface (7) and/or the valve seat (9).
IPC 8 full level
F02M 61/18 (2006.01); F02M 61/10 (2006.01); F02M 61/16 (2006.01)
CPC (source: EP)
F02M 61/162 (2013.01); F02M 61/18 (2013.01); F02M 61/1866 (2013.01); F02M 61/1873 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004027255 A1 20040401; AT E435972 T1 20090715; DE 10240827 A1 20040318; DE 50311689 D1 20090820; EP 1537326 A1 20050608; EP 1537326 B1 20090708
DOCDB simple family (application)
DE 0301333 W 20030424; AT 03761365 T 20030424; DE 10240827 A 20020904; DE 50311689 T 20030424; EP 03761365 A 20030424