EP 2459866 A1 20120606 - 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 À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102009029562 A 20090918
- DE 102009028122 A 20090730
- EP 2010057634 W 20100601
Abstract (en)
[origin: WO2011012355A1] Fuel injection valve for internal combustion engines having a valve body (1), in which a pressure chamber (5) is formed, in which a valve needle (3) is arranged such that it can be displaced longitudinally, which valve needle (3) interacts by way of a valve sealing surface (11) which is formed on the valve needle (3) with a valve seat (9) which delimits the pressure chamber (5). As a result of the interaction of the valve needle (3) with the valve seat (9), a fuel flow to at least one injection opening (7) is made possible or interrupted, wherein the fuel flow flows through between the valve needle (3) and the wall of the pressure chamber (5) to the injection openings (7). A collar (17) is formed on the valve needle (3), with the result that a gap throttle (15) is formed between the wall of the pressure chamber (5) and the collar (17), wherein the collar (17) has an inlet-side surface (20) and an outlet-side surface (24), wherein the inlet-side surface (20) is of rounded or conical configuration.
IPC 8 full level
F02M 61/16 (2006.01); F02M 61/20 (2006.01)
CPC (source: EP)
F02M 61/16 (2013.01); F02M 61/205 (2013.01); F02M 2200/28 (2013.01)
Citation (search report)
See references of WO 2011012355A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102009029562 A1 20110203; CN 102472222 A 20120523; CN 102472222 B 20150722; EP 2459866 A1 20120606; EP 2459866 B1 20141217; WO 2011012355 A1 20110203
DOCDB simple family (application)
DE 102009029562 A 20090918; CN 201080033643 A 20100601; EP 10720789 A 20100601; EP 2010057634 W 20100601