EP 3167179 A4 20171206 - FUEL SYSTEM FOR INTERNAL COMBUSTION ENGINE AND A METHOD TO LESSEN PRESSURE FLUCTUATIONS IN A FUEL FILTER DEVICE IN A FUEL SYSTEM
Title (en)
FUEL SYSTEM FOR INTERNAL COMBUSTION ENGINE AND A METHOD TO LESSEN PRESSURE FLUCTUATIONS IN A FUEL FILTER DEVICE IN A FUEL SYSTEM
Title (de)
KRAFTSTOFFSYSTEM FÜR VERBRENNUNGSMOTOR UND VERFAHREN ZUM VERRINGERN VON DRUCKSCHWANKUNGEN IN EINER KRAFTSTOFFFILTERVORRICHTUNG IN EINEM KRAFTSTOFFSYSTEM
Title (fr)
SYSTÈME DE CARBURANT POUR MOTEUR À COMBUSTION INTERNE ET PROCÉDÉ POUR RÉDUIRE LES FLUCTUATIONS DE PRESSION DANS UN DISPOSITIF DE FILTRE À CARBURANT DANS UN SYSTÈME DE CARBURANT
Publication
Application
Priority
- SE 1450877 A 20140708
- SE 2015050682 W 20150612
Abstract (en)
[origin: WO2016007067A1] The invention relates to a fuel system (4) for an internal combustion engine (2), which fuel system (4) comprises a first fuel tank (20), a fuel filter device (12), arranged between a low pressure pump (22) operated by an electric motor and a high pressure pump (14), and a first fuel conduit (24), through which the low pressure pump (22) is arranged to supply fuel to the fuel filter device (12). Furthermore, a gradually opening and/or closing control valve (30), which opens and/or closes at a predetermined pressure, is arranged upstream of the fuel filter device (12). A recirculation conduit (32) is arranged upstream of the control valve and downstream of the low pressure pump (22), for recirculation of fuel back to the low pressure pump (22), at a supply pressure which exceeds the predetermined opening pressure of the control valve (30). Thanks to the invention, the risk of major pressure fluctuations in the fuel filter device (12) may be reduced. The invention also relates to an internal combustion engine (2) comprising such a fuel system (4), a vehicle (1 ) comprising such a fuel system (4) and a method to lessen pressure fluctuations in the fuel filter device (12) in such a fuel system (4).
IPC 8 full level
F02M 37/00 (2006.01); F02D 29/02 (2006.01); F02D 33/00 (2006.01); F02D 41/06 (2006.01); F02D 41/38 (2006.01); F02M 37/04 (2006.01); F02M 37/06 (2006.01); F02M 37/18 (2006.01); F02M 37/32 (2019.01); F02M 55/04 (2006.01)
CPC (source: EP SE US)
F02D 29/02 (2013.01 - EP); F02D 33/006 (2013.01 - EP US); F02D 41/065 (2013.01 - EP); F02D 41/3854 (2013.01 - EP); F02M 37/0023 (2013.01 - SE); F02M 37/0029 (2013.01 - EP); F02M 37/0041 (2013.01 - EP); F02M 37/0052 (2013.01 - EP); F02M 37/06 (2013.01 - EP); F02M 37/18 (2013.01 - EP); F02M 37/32 (2018.12 - EP SE US); F02M 37/46 (2018.12 - SE); F02D 2200/0602 (2013.01 - EP); F02M 55/04 (2013.01 - EP)
Citation (search report)
- [XI] DE 102011084675 A1 20130418 - BOSCH GMBH ROBERT [DE]
- [XI] WO 02063158 A1 20020815 - BOSCH GMBH ROBERT [DE], et al
- [XI] WO 2014085758 A1 20140605 - THERMO KING CORP [US]
- [XI] US 2009007892 A1 20090108 - BURKITT JOSEPH [US]
- [X] WO 2012089372 A1 20120705 - BOSCH GMBH ROBERT [DE], et al
- [A] US 2013340411 A1 20131226 - CARROLL III JOHN T [US], et al
- [A] DE 10149412 C1 20030206 - BOSCH GMBH ROBERT [DE]
- See references of WO 2016007067A1
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
DOCDB simple family (publication)
WO 2016007067 A1 20160114; CN 106536913 A 20170322; CN 106536913 B 20190712; EP 3167179 A1 20170517; EP 3167179 A4 20171206; SE 1450877 A1 20160109; SE 540028 C2 20180227
DOCDB simple family (application)
SE 2015050682 W 20150612; CN 201580035201 A 20150612; EP 15818473 A 20150612; SE 1450877 A 20140708