Global Patent Index - EP 1352174 B1

EP 1352174 B1 20060201 - FUEL-INJECTION SYSTEM COMPRISING PRESSURE REGULATION IN THE RETURN LINE

Title (en)

FUEL-INJECTION SYSTEM COMPRISING PRESSURE REGULATION IN THE RETURN LINE

Title (de)

KRAFTSTOFFEINSPRITZSYSTEM MIT DRUCKREGELUNG IN DER RÜCKLAUFLEITUNG

Title (fr)

SYSTEME D'INJECTION DE CARBURANT AVEC REGULATION DE LA PRESSION DANS LA CONDUITE DE RETOUR

Publication

EP 1352174 B1 20060201 (DE)

Application

EP 01990323 A 20011219

Priority

  • DE 0104795 W 20011219
  • DE 10100700 A 20010110

Abstract (en)

[origin: WO02055873A1] The invention relates to a common rail fuel-injection system, in which the pressure in the return line (27) is regulated in accordance with the supply pressure of a presupply pump (19). This improves the operational behaviour of a high-pressure fuel pump (1) and the injectors, (not shown), that are supplied with fuel via a common rail (3). The pressure in the return line (27) is regulated using a pressure-control valve (31).

IPC 8 full level

F02M 55/00 (2006.01); F02M 63/02 (2006.01); F02M 37/00 (2006.01); F02M 37/02 (2006.01); F02M 55/02 (2006.01); F02M 69/54 (2006.01); F04B 49/22 (2006.01); F02D 33/00 (2006.01); F02M 37/10 (2006.01)

CPC (source: EP KR US)

F02M 37/0029 (2013.01 - EP US); F02M 37/0052 (2013.01 - EP US); F02M 37/0094 (2013.01 - EP US); F02M 37/025 (2013.01 - EP US); F02M 63/02 (2013.01 - KR); F02M 63/0225 (2013.01 - EP US); F02M 69/54 (2013.01 - EP US); F04B 49/22 (2013.01 - EP US); F02D 33/003 (2013.01 - EP US); F02M 37/106 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 02055873 A1 20020718; DE 10100700 C1 20020801; DE 50108872 D1 20060413; EP 1352174 A1 20031015; EP 1352174 B1 20060201; JP 2004517260 A 20040610; JP 4083015 B2 20080430; KR 100828224 B1 20080507; KR 20020077529 A 20021011; US 2003111050 A1 20030619; US 6729309 B2 20040504

DOCDB simple family (application)

DE 0104795 W 20011219; DE 10100700 A 20010110; DE 50108872 T 20011219; EP 01990323 A 20011219; JP 2002556503 A 20011219; KR 20027011794 A 20020909; US 22114702 A 20021226