EP 1152142 B1 20040121 - Fuel supply system for combustion engine with direct fuel injection
Title (en)
Fuel supply system for combustion engine with direct fuel injection
Title (de)
Kraftstoff-Versorgungssystem für eine mit Kraftstoffdirekteinspritzung arbeitende Brennkraftmaschine
Title (fr)
Système d'alimentation en carburant pour moteur à combustion du type à injection directe
Publication
Application
Priority
DE 10021869 A 20000505
Abstract (en)
[origin: EP1152142A2] A fuel injection system for an IC engine has a high pressure fuel pump (5) feeding a common rail (3). Surplus and leaked fuel, from the high pressure circuit, is returned to the input of the high pressure pump using a separate pump (12) and non return valve (13). This increases the pumping efficiency of the system and enables a smaller delivery pump (2) to be fitted into the fuel tank. The separate pump can be driven mechanically or electrically and draws fuel from the return fuel line. Any surplus fuel is returned to the fuel tank in the normal way.
IPC 1-7
IPC 8 full level
F02M 37/00 (2006.01); F02M 37/02 (2006.01); F02M 37/10 (2006.01); F02M 55/00 (2006.01); F02M 63/02 (2006.01)
CPC (source: EP)
F02M 37/0052 (2013.01); F02M 37/025 (2013.01); F02M 37/10 (2013.01); F02M 55/00 (2013.01); F02M 63/0225 (2013.01); F02M 37/0094 (2013.01)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 1152142 A2 20011107; EP 1152142 A3 20030212; EP 1152142 B1 20040121; DE 10021869 A1 20011108; DE 50101343 D1 20040226
DOCDB simple family (application)
EP 01109000 A 20010411; DE 10021869 A 20000505; DE 50101343 T 20010411