Global patent index - EP 1045977 A1

EP 1045977 A1 2000-10-25 - 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 A COMBUSTION INTERNE

Publication

EP 1045977 A1 (DE)

Application

EP 99938137 A

Priority

  • DE 9901660 W
  • DE 19837813 A

Abstract (en)

[origin: DE19837813A1] The fuel injection valve has an axially movable valve element (50) in a valve body (10) bore with a valve closure head (52) on the combustion chamber end with a sealing surface (53) that works in conjunction with a valve seat surface (11), an injection opening in the head that is closed by the wall of the bore with the sealing surface on the seat and is opened as the valve moves outwards. The valve element is driven by an externally controllable element irrespective of the pressure in a pressure chamber. Two pressure shoulders (55) on the needle valve element have essentially identical pressure engagement surfaces. One of the pressure shoulders on the combustion chamber end of the valve body is arranged in a compensation chamber fluidically connected to the pressure chamber and closed at the end by an axially guided pressure sleeve (70).

IPC 1-7 (main, further and additional classification)

F02M 61/08; F02M 51/06

IPC 8 full level (invention and additional information)

F02M 47/02 (2006.01); F02M 51/06 (2006.01); F02M 61/08 (2006.01); F02M 61/16 (2006.01); F02M 63/02 (2006.01)

CPC (invention and additional information)

F02M 61/08 (2013.01); F02M 51/0603 (2013.01); F02M 63/0225 (2013.01)

Citation (search report)

See references of WO 0011341A1

Designated contracting state (EPC)

CH DE ES FR GB IT LI SE

EPO simple patent family

DE 19837813 A1 20000224; EP 1045977 A1 20001025; EP 1045977 B1 20030903; JP 2002523672 A 20020730; US 6247453 B1 20010619; WO 0011341 A1 20000302

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