Global Patent Index - EP 0493390 B1

EP 0493390 B1 19940420 - FUEL-AIR MIXTURE INJECTION DEVICE FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINES.

Title (en)

FUEL-AIR MIXTURE INJECTION DEVICE FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINES.

Title (de)

VORRICHTUNG ZUR EINSPRITZUNG EINES KRAFTSTOFF-LUFT-GEMISCHES FÜR MEHRZYLINDRIGE BRENNKRAFTMASCHINEN.

Title (fr)

DISPOSITIF D'INJECTION D'UN MELANGE D'AIR ET DE CARBURANT DANS DES MOTEURS A COMBUSTION INTERNE A CYLINDRES MULTIPLES.

Publication

EP 0493390 B1 19940420

Application

EP 90911534 A 19900814

Priority

  • DE 3931490 A 19890921
  • DE 9000626 W 19900814

Abstract (en)

[origin: WO9104408A1] A fuel-air mixture injection device for multi-cylinder internal combustion engines has an electromagnetically-actuated fuel injection valve (12) with a valve seat (27) and valve member (28) and a distributor (15) with an air feed (16) and a number of distributor apertures (17) communicating with the air feed (16) and corresponding to the number of cylinders of the internal combustion engine. In order to achieve an extremely narrow mixture spread of the fuel metered to the individual distributor apertures (17) while the valve is open while ensuring a simple construction of the fuel injection valve (12), the valve member (28) is borne by a valve needle (32) which is guided so as to be axially movable by means of a guide section (33) in the valve chamber (29) in front of the valve seat (27), so that the fuel is fed to the valve chamber (29) in the region between the valve seat (27) and the guide section (33).

IPC 1-7

F02M 51/08; F02M 61/18; F02M 69/08

IPC 8 full level

F02M 51/06 (2006.01); F02M 51/08 (2006.01); F02M 61/12 (2006.01); F02M 61/18 (2006.01); F02M 69/08 (2006.01); F02M 69/50 (2006.01)

CPC (source: EP US)

F02M 51/0678 (2013.01 - EP US); F02M 51/08 (2019.01 - EP US); F02M 61/12 (2013.01 - EP US); F02M 69/50 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9104408 A1 19910404; DE 3931490 A1 19910404; DE 59005475 D1 19940526; EP 0493390 A1 19920708; EP 0493390 B1 19940420; JP H05503752 A 19930617; US 5269281 A 19931214

DOCDB simple family (application)

DE 9000626 W 19900814; DE 3931490 A 19890921; DE 59005475 T 19900814; EP 90911534 A 19900814; JP 51080990 A 19900814; US 84221092 A 19920323