EP 2394049 B1 20121121 - FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (en)
FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (de)
BRENNSTOFFEINSPRITZVENTIL FÜR VERBRENNUNGSKRAFTMASCHINEN
Title (fr)
INJECTEUR DE CARBURANT POUR MOTEURS À COMBUSTION INTERNE
Publication
Application
Priority
- CH 2010000016 W 20100122
- CH 1922009 A 20090209
Abstract (en)
[origin: WO2010088781A1] The control apparatus (88) of a fuel injection valve comprises a mushroom-shaped intermediate valve member (56), which is guided in an intermediate element (94) with a sliding fit (94''). Together with a guide sleeve (78) and the lower surface of the intermediate element (94), the injection valve member (28), which has a control plunger (28'), for opening and closing injection openings so as to implement intermittent injection processes defines a control space (54). An outlet element (114) is located between the intermediate element (94) and the housing body (116) and delimits a valve space (70), which is hydraulically connected to the face of the stem (58) of the mushroom-shaped intermediate valve member (56). The intermediate valve member comprises a stem (58), which is guided in the intermediate element (94) with a sliding fit, and a head (60), which rests with the sealing surface (61) thereof at least partially against a surface (57) of an intermediate valve seat (59) configured on the intermediate element (94) in the closed position of the intermediate valve member (56) in order to separate the high pressure inlet (96) from the control space (54), wherein the sealing surface (61) of the head (60) and the surface (57) of the intermediate valve seat (59) are designed such that they create a throttled fluid connection between the high pressure inlet (96) and the sliding fit in the closed position of the intermediate valve (56').
IPC 8 full level
F02M 45/08 (2006.01); F02M 47/02 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP)
F02M 45/08 (2013.01); F02M 47/025 (2013.01); F02M 47/027 (2013.01); F02M 63/0026 (2013.01); F02M 63/0029 (2013.01); F02M 63/004 (2013.01); F02M 63/0043 (2013.01)
Designated contracting state (EPC)
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)
WO 2010088781 A1 20100812; CH 700396 A1 20100813; EP 2394049 A1 20111214; EP 2394049 B1 20121121
DOCDB simple family (application)
CH 2010000016 W 20100122; CH 1922009 A 20090209; EP 10701799 A 20100122