Global Patent Index - EP 2171255 B1

EP 2171255 B1 20141217 - THROTTLE ON A VALVE NEEDLE OF A FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES

Title (en)

THROTTLE ON A VALVE NEEDLE OF A FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES

Title (de)

DROSSEL AN EINER VENTILNADEL EINES KRAFTSTOFFEINSPRITZVENTILS FÜR BRENNKRAFTMASCHINEN

Title (fr)

ÉTRANGLEMENT AU NIVEAU DU POINTEAU D'UNE SOUPAPE D'INJECTION DE CARBURANT POUR MOTEURS À COMBUSTION INTERNE

Publication

EP 2171255 B1 20141217 (DE)

Application

EP 08760983 A 20080613

Priority

  • EP 2008057451 W 20080613
  • DE 102007032741 A 20070713

Abstract (en)

[origin: WO2009010348A1] The invention relates to a fuel injection valve for internal combustion engines, having a valve body (1), in which a pressure chamber (5) is configured, in which a valve needle (3) is disposed in a longitudinally displaceable manner, interacting with a sealing surface (11) having a valve seat (7) configured on the valve needle (3). The valve seat (7) delimits the pressure chamber (5), thus enabling or interrupting a fuel flow to at least one injection opening (8) by means of the interaction of the valve needle (3) with the valve seat (7). To this end, the fuel flow to the injection openings (8) occurs between the valve needle (3) and the wall of the pressure chamber (5), wherein a sharp-edged gap throttle (15) is formed between the valve needle (3) and the wall of the pressure chamber (5).

IPC 8 full level

F02M 61/10 (2006.01); F02M 61/12 (2006.01); F02M 61/16 (2006.01)

CPC (source: EP US)

F02M 47/027 (2013.01 - EP US); F02M 61/10 (2013.01 - EP US); F02M 61/12 (2013.01 - EP US); F02M 61/16 (2013.01 - EP US); F02M 61/205 (2013.01 - EP US); F02M 63/008 (2013.01 - EP US); F02M 2200/28 (2013.01 - EP US); F02M 2547/003 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

DE 102007032741 A1 20090115; CN 101743394 A 20100616; CN 101743394 B 20150624; EP 2171255 A1 20100407; EP 2171255 B1 20141217; JP 2010533263 A 20101021; JP 2012193748 A 20121011; JP 5542879 B2 20140709; RU 2010104947 A 20110820; RU 2468242 C2 20121127; US 2010193611 A1 20100805; WO 2009010348 A1 20090122

DOCDB simple family (application)

DE 102007032741 A 20070713; CN 200880024554 A 20080613; EP 08760983 A 20080613; EP 2008057451 W 20080613; JP 2010516441 A 20080613; JP 2012161703 A 20120720; RU 2010104947 A 20080613; US 66893608 A 20080613