EP 3074622 A1 20161005 - FUEL INJECTION SYSTEM AND METHOD FOR OPERATING A FUEL INJECTION SYSTEM
Title (en)
FUEL INJECTION SYSTEM AND METHOD FOR OPERATING A FUEL INJECTION SYSTEM
Title (de)
KRAFTSTOFFEINSPRITZSYSTEM SOWIE VERFAHREN ZUM BETREIBEN EINES KRAFTSTOFFEINSPRITZSYSTEMS
Title (fr)
SYSTÈME D'INJECTION DE CARBURANT ET PROCÉDÉ POUR FAIRE FONCTIONNER UN SYSTÈME D'INJECTION DE CARBURANT
Publication
Application
Priority
- DE 102013224387 A 20131128
- EP 2014072122 W 20141015
Abstract (en)
[origin: WO2015078634A1] The invention relates to a fuel injection system, in particular a common rail injection system, comprising: a volumetrically non-compensated high-pressure pump (1) having only one high-pressure element (2); and an overflow valve (3) for regulating the inlet pressure of the high-pressure pump (1), said overflow valve (3) having a valve member (5), that can move against the spring force of a spring (4) in order to expose at least one spill opening (6), via which an inlet region (7) of the high-pressure pump (1) can be connected to a return line (8) of the fuel injection system. According to the invention, the overflow valve (3) has a storage volume that can be activated in accordance with the displacement volume (Qgeo) of the high-pressure pump (1), said storage volume corresponding to at least half of the displacement volume (Qgeo) at a maximum notional pressure amplitude of 1 bar in the inlet region (7). The invention also relates to a method for operating a fuel injection system comprising a volumetrically non-compensated high-pressure pump (1) having only one high-pressure element (2).
IPC 8 full level
F02M 37/00 (2006.01); F02M 55/04 (2006.01)
CPC (source: EP)
F02M 37/0029 (2013.01); F02M 37/0041 (2013.01); F02M 55/04 (2013.01); F02M 2200/26 (2013.01)
Citation (search report)
See references of WO 2015078634A1
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)
DE 102013224387 A1 20150528; DE 102013224387 B4 20191128; CN 105765209 A 20160713; CN 105765209 B 20200320; EP 3074622 A1 20161005; WO 2015078634 A1 20150604
DOCDB simple family (application)
DE 102013224387 A 20131128; CN 201480064548 A 20141015; EP 14784084 A 20141015; EP 2014072122 W 20141015