Global Patent Index - EP 1047871 A1

EP 1047871 A1 2000-11-02 - FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES

Title (en)

FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES

Title (de)

KRAFTSTOFFEINSPRITZSYSTEM FÜR BRENNKRAFTMASCHINEN

Title (fr)

SYSTEME D'INJECTION DE CARBURANT POUR MOTEURS A COMBUSTION INTERNE

Publication

EP 1047871 A1 (DE)

Application

EP 99939946 A

Priority

  • DE 9901848 W
  • DE 19853103 A

Abstract (en)

[origin: DE19853103A1] The inventive fuel injection system for internal combustion engines is provided with a distributing pipe and a high-pressure pump which is driven depending on the engine speed. Said high-pressure pump produces the fuel pressure and throughput which is necessary for the operating state of the engine. The fuel injection system is also provided with a fuel metering unit assigned to the high pressure pump. Said fuel metering unit is based on an electromagnetically actuated control valve (11). The fuel metering unit (10, 11) is arranged within the high-pressure pump. The outlet (32, 34, 35) of the control valve (11) leads to the low-pressure zone of the high-pressure pump. The above-mentioned features permit the establishment of a fuel metering unit (10, 11) which is capable of exactly metering to the high-pressure pump of theommon rail system the fuel amount desired for the respective operating state of the internal combustion engine.

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

F02M 59/34; F02M 59/46; F02M 63/02

IPC 8 full level (invention and additional information)

F02M 59/34 (2006.01); F02M 59/46 (2006.01); F02M 63/02 (2006.01)

CPC (invention and additional information)

F02M 63/0017 (2013.01); F02M 59/34 (2013.01); F02M 63/004 (2013.01); F02M 63/0045 (2013.01); F02M 63/0056 (2013.01); F02M 63/0225 (2013.01); F02M 2200/24 (2013.01)

Citation (search report)

See references of WO 0029742A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19853103 A1 20000525; EP 1047871 A1 20001102; EP 1047871 B1 20040128; JP 2002530568 A 20020917; JP 4358445 B2 20091104; US 6446606 B1 20020910; WO 0029742 A1 20000525

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