EP 1902212 A1 20080326 - FUEL INJECTION VALVES IN COMBUSTION ENGINES
Title (en)
FUEL INJECTION VALVES IN COMBUSTION ENGINES
Title (de)
KRAFTSTOFFEINSPRITZVENTILE BEI KRAFTMASCHINEN
Title (fr)
SOUPAPES D'INJECTION DE CARBURANT POUR DES MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- EP 2006062167 W 20060509
- DE 102005030868 A 20050701
Abstract (en)
[origin: WO2007003458A1] The invention relates to a fuel injection valve with a valve body (2) inside of which a valve needle (4) is placed in a manner that enables it to be longitudinally displaced, this valve needle interacting with a valve seat (7) for controlling at least one injection opening (9). The valve needle (4) surrounds a sleeve (5) at the valve seat end. The valve needle (4) is surrounded by a pressure space (11) at least on a portion of the length of the valve needle, this pressure space being able to be filled with highly pressurized fuel. An annular space (10) is formed between the sleeve (5) and the valve needle (4) and is permanently connected, via a throttle connection (21; 37), to a pressure space (11) surrounding the valve needle (4). A flow cross-section is opened by the opening travel motion of the valve needle (4), whereby the pressure space (11) is connected to the annular space (10) via this flow cross-section.
IPC 8 full level
F02M 45/08 (2006.01); F02M 61/04 (2006.01); F02M 61/10 (2006.01); F02M 61/12 (2006.01); F02M 61/18 (2006.01)
CPC (source: EP)
F02M 61/045 (2013.01); F02M 61/10 (2013.01); F02M 61/12 (2013.01); F02M 61/18 (2013.01); F02M 45/086 (2013.01); F02M 45/12 (2013.01); F02M 47/027 (2013.01); F02M 2200/46 (2013.01); F02M 2547/001 (2013.01)
Citation (search report)
See references of WO 2007003458A1
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 LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005030868 A1 20070111; EP 1902212 A1 20080326; WO 2007003458 A1 20070111
DOCDB simple family (application)
DE 102005030868 A 20050701; EP 06755107 A 20060509; EP 2006062167 W 20060509