EP 2890888 A1 20150708 - LOW-PRESSURE CIRCUIT FOR A FUEL INJECTION SYSTEM, FUEL INJECTION SYSTEM AND METHOD FOR OPERATING A FUEL INJECTION SYSTEM
Title (en)
LOW-PRESSURE CIRCUIT FOR A FUEL INJECTION SYSTEM, FUEL INJECTION SYSTEM AND METHOD FOR OPERATING A FUEL INJECTION SYSTEM
Title (de)
NIEDERDRUCKKREISLAUF FÜR EIN KRAFTSTOFFEINSPRITZSYSTEM, KRAFTSTOFFEINSPRITZSYSTEM SOWIE VERFAHREN ZUM BETREIBEN EINES KRAFTSTOFFEINSPRITZSYSTEMS
Title (fr)
CIRCUIT À BASSE PRESSION POUR UN SYSTÈME D'INJECTION DE CARBURANT, SYSTÈME D'INJECTION DE CARBURANT ET PROCÉDÉ DE FONCTIONNEMENT D'UN SYSTÈME D'INJECTION DE CARBURANT
Publication
Application
Priority
- DE 102012212062 A 20120711
- EP 2013061304 W 20130531
Abstract (en)
[origin: WO2014009056A1] The invention relates to a low-pressure circuit for a fuel injection system, in particular for a common-rail injection system, comprising a fuel tank (1) and a pre-feed pump (2), by means of which fuel from the fuel tank (1) can be suctioned and fed to a working chamber (4) of a high-pressure pump (5) via a fuel line (3), wherein the working chamber (4) is connected to a return line via shaft bearings. According to the invention at least two throttles (9, 10) are provided for connecting the working chamber (4) with the return (8), which throttles are in each case connected parallel to the shaft bearings (6, 7) and/or can be connected by means of a valve (11). The invention further relates to a fuel injection system comprising such a low-pressure circuit and to a method for operating a fuel injection system.
IPC 8 full level
F02M 37/00 (2006.01); F02M 59/10 (2006.01); F02M 63/00 (2006.01); F02M 63/02 (2006.01)
CPC (source: EP US)
F02M 37/0052 (2013.01 - EP US); F02M 59/102 (2013.01 - EP US); F02M 63/0001 (2013.01 - EP US); F02M 63/0225 (2013.01 - EP US); F02M 63/0265 (2013.01 - US); F02M 63/0275 (2013.01 - US)
Citation (search report)
See references of WO 2014009056A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014009056 A1 20140116; DE 102012212062 A1 20140116; EP 2890888 A1 20150708; US 2015152829 A1 20150604
DOCDB simple family (application)
EP 2013061304 W 20130531; DE 102012212062 A 20120711; EP 13727584 A 20130531; US 201314414354 A 20130531