EP 2867519 B1 20170712 - FUEL-INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (en)
FUEL-INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (de)
KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN
Title (fr)
INJECTEUR DE CARBURANT POUR MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- DE 102012210953 A 20120627
- EP 2013060200 W 20130516
Abstract (en)
[origin: WO2014000968A1] The invention concerns a fuel-injection valve for internal combustion engines, with a housing (2), in which is formed a pressure chamber (6) from which at least one injection opening (8) proceeds. Disposed in the pressure chamber (6) is a valve needle (10), of which the longitudinal movement opens and closes the at least one injection opening (8). Remaining at least in sections between the valve needle (10) and the wall of the pressure chamber (6) is an annular space which can be filled with fuel at high pressure and through which fuel can flow in the direction of the injection openings (8). The valve needle (10) is guided by a guide section (14) formed in the pressure chamber (6). In the region of the guide section (14), the valve needle (10) comprises an elongate bore (15), through which fuel can flow from the part of the pressure chamber (6) upstream of the guide section (14) into the downstream part of the pressure chamber (6), a throttling point (16) being formed inside the elongate bore (15).
IPC 8 full level
F02M 47/02 (2006.01); F02M 61/04 (2006.01); F02M 61/12 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP)
F02M 47/027 (2013.01); F02M 61/042 (2013.01); F02M 61/12 (2013.01); F02M 63/0073 (2013.01); F02M 2200/28 (2013.01); F02M 2200/40 (2013.01); F02M 2547/001 (2013.01)
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 RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102012210953 A1 20140102; EP 2867519 A1 20150506; EP 2867519 B1 20170712; WO 2014000968 A1 20140103
DOCDB simple family (application)
DE 102012210953 A 20120627; EP 13725117 A 20130516; EP 2013060200 W 20130516