EP 1836385 A1 20070926 - FUEL INJECTION VALVE WITH PRESSURE GAIN
Title (en)
FUEL INJECTION VALVE WITH PRESSURE GAIN
Title (de)
BRENNSTOFFEINSPRITZVENTIL MIT DRUCKVERSTÄRKUNG
Title (fr)
SOUPAPE D'INJECTION DE COMBUSTIBLE A MULTIPLICATION DE PRESSION
Publication
Application
Priority
- CH 2005000656 W 20051108
- CH 20062004 A 20041203
Abstract (en)
[origin: US7513241B2] The invention relates to a fuel injection valve for intermittent fuel injection into the combustion chamber of internal combustion engines. A needle-shaped injection valve member (34) is arranged in the high-pressure fuel chamber (30) adjacent to the injection valve seat (32), said injection valve member co-operating with the injection valve seat (32) and defining, in a piston-type manner, the cylinder chamber (36) which is connected to the high-pressure inlet (26). The booster piston (28) is controlled by means of the control valve (34) embodied as a flat seat valve, increasing the pressure of the fuel in the high-pressure fuel chamber (30) for an injection, and thus lifting the injection valve member from the injection valve seat. In this way, the injection is carried out with increased pressure.
IPC 8 full level
F02M 59/10 (2006.01); F02M 57/02 (2006.01); F02M 59/46 (2006.01)
CPC (source: EP US)
F02M 57/025 (2013.01 - EP US); F02M 59/105 (2013.01 - EP US)
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)
WO 2006058444 A1 20060608; AT E493577 T1 20110115; DE 502005010779 D1 20110210; EP 1836385 A1 20070926; EP 1836385 B1 20101229; US 2008115765 A1 20080522; US 7513241 B2 20090407
DOCDB simple family (application)
CH 2005000656 W 20051108; AT 05798800 T 20051108; DE 502005010779 T 20051108; EP 05798800 A 20051108; US 66791705 A 20051108