Global Patent Index - EP 2971746 B1

EP 2971746 B1 20180502 - METHOD FOR VENTING A FUEL SUPPLY LINE, AND INTERNAL COMBUSTION ENGINE

Title (en)

METHOD FOR VENTING A FUEL SUPPLY LINE, AND INTERNAL COMBUSTION ENGINE

Title (de)

VERFAHREN ZUR ENTLÜFTUNG EINER KRAFTSTOFFVERSORGUNGSLEITUNG UND BRENNKRAFTMASCHINE

Title (fr)

PROCÉDÉ DE PURGE D'AIR D'UN CONDUIT D'ALIMENTATION EN CARBURANT ET MOTEUR À COMBUSTION INTERNE

Publication

EP 2971746 B1 20180502 (DE)

Application

EP 14708482 A 20140305

Priority

  • DE 102013204093 A 20130311
  • EP 2014000556 W 20140305

Abstract (en)

[origin: WO2014139643A1] The invention relates to a method for venting a fuel supply line (11) of a direct-injection internal combustion engine, wherein the fuel supply line (11) has an injector (3), a high-pressure storage means (15) upstream of the injector (3), a quantity-limiting valve (17) between the high-pressure storage means (15) and the injector (3) for limiting a quantity of fuel flowing from the high-pressure storage means (15) to the injector (3), and a high-pressure pump (19) upstream of the high-pressure storage means (15) for delivering fuel to the high-pressure storage means (15), wherein a pressure in the high-pressure storage means (15) is regulated by means of an intake throttle (21) which is arranged upstream of the high-pressure pump (19). In this case, provision is made for the fuel supply line (11) to be vented downstream of the high-pressure pump (19), wherein a passage cross section, which is smaller than or equal to a predetermined limit passage cross section, for the fuel is set in the intake throttle (21) during a venting operation.

IPC 8 full level

F02M 55/02 (2006.01); F02D 41/06 (2006.01); F02D 41/38 (2006.01); F02M 37/00 (2006.01); F02M 55/00 (2006.01); F02M 63/00 (2006.01)

CPC (source: EP RU US)

F02D 41/06 (2013.01 - RU US); F02D 41/062 (2013.01 - EP RU US); F02D 41/3845 (2013.01 - EP RU US); F02M 37/0023 (2013.01 - EP RU US); F02M 55/007 (2013.01 - RU US); F02M 55/025 (2013.01 - EP RU US)

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)

DE 102013204093 A1 20140911; DE 102013204093 B4 20210318; CN 105229296 A 20160106; CN 105229296 B 20181109; EP 2971746 A1 20160120; EP 2971746 B1 20180502; HK 1219525 A1 20170407; KR 102127935 B1 20200629; KR 20150123333 A 20151103; RU 2015142846 A 20170418; RU 2633212 C2 20171011; US 2015377199 A1 20151231; WO 2014139643 A1 20140918

DOCDB simple family (application)

DE 102013204093 A 20130311; CN 201480014472 A 20140305; EP 14708482 A 20140305; EP 2014000556 W 20140305; HK 16107604 A 20160630; KR 20157028046 A 20140305; RU 2015142846 A 20140305; US 201414773979 A 20140305