Global Patent Index - EP 1123463 A1

EP 1123463 A1 20010816 - FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Title (en)

FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Title (de)

KRAFTSTOFFEINSPRITZSYSTEM FÜR EINE BRENNKRAFTMASCHINE

Title (fr)

SYSTEME D'INJECTION DE CARBURANT POUR MOTEUR A COMBUSTION INTERNE

Publication

EP 1123463 A1 20010816 (DE)

Application

EP 00958211 A 20000802

Priority

  • DE 0002581 W 20000802
  • DE 19939423 A 19990820

Abstract (en)

[origin: DE19939423A1] The invention relates to a fuel injection system (1) for an internal combustion engine. According to the inventive system, the fuel is injected into the combustion chamber of the internal combustion engine via injectors (10; 61) with at least two different fuel pressures. A hydraulic pressure multiplicator (11) that generates the higher fuel pressure is provided in parallel to a by-pass line (19). Said pressure multiplicator (11) can be activated and deactivated via a valve unit (13). The invention provides a fuel injection system with an improved efficiency since the pressure multiplicator is not permanently operated and the losses through friction are reduced.

IPC 1-7

F02M 59/10; F02M 41/02; F02M 41/16; F02M 45/00; F02M 47/02; F02M 57/02

IPC 8 full level

F02M 59/34 (2006.01); F02M 41/02 (2006.01); F02M 41/06 (2006.01); F02M 41/16 (2006.01); F02M 45/00 (2006.01); F02M 47/02 (2006.01); F02M 57/02 (2006.01); F02M 59/10 (2006.01); F02M 59/36 (2006.01); F02M 63/02 (2006.01)

CPC (source: EP US)

F02M 41/06 (2013.01 - EP US); F02M 45/00 (2013.01 - EP US); F02M 47/027 (2013.01 - EP US); F02M 57/025 (2013.01 - EP US); F02M 57/026 (2013.01 - EP US); F02M 59/105 (2013.01 - EP US); F02M 63/0225 (2013.01 - EP US)

Citation (search report)

See references of WO 0114727A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

DE 19939423 A1 20010301; AT 292238 T 20050415; DE 50009918 D1 20050504; EP 1123463 A1 20010816; EP 1123463 B1 20050330; JP 2003507651 A 20030225; US 6688277 B1 20040210; WO 0114727 A1 20010301

DOCDB simple family (application)

DE 19939423 A 19990820; AT 00958211 T 20000802; DE 0002581 W 20000802; DE 50009918 T 20000802; EP 00958211 A 20000802; JP 2001518576 A 20000802; US 80788101 A 20010820