Global Patent Index - EP 3060789 B1

EP 3060789 B1 20170628 - FUEL INJECTOR

Title (en)

FUEL INJECTOR

Title (de)

KRAFTSTOFFINJEKTOR

Title (fr)

INJECTEUR DE CARBURANT

Publication

EP 3060789 B1 20170628 (DE)

Application

EP 14777325 A 20140930

Priority

  • DE 102013221554 A 20131023
  • EP 2014070867 W 20140930

Abstract (en)

[origin: WO2015058929A1] The invention relates to a fuel injector (10) comprising an injector housing (11) in which an injection member (20) is arranged longitudinally displaceable along a longitudinal axis (22), comprising a control chamber (35) hydraulically connected to a high-pressure chamber (25) of the injector housing (11), which control chamber can be hydraulically relieved via a drain hole (30) in the direction of a low-pressure chamber (42) of the injector housing (11), wherein the flow rate of pressure medium through the drain hole (30) can be controlled by means of a valve element (40), wherein the valve element (40) is arranged axially displaceable in a preferably rod-shaped guide element (65; 65a) which plunges into a hole (60) of the valve element (40) and is supported on the side facing away from the valve element (40) on a stationary housing element (55), and wherein the guide element (65; 65a) has a first attenuation region (71) in a region between a guide section (61) of the guide element (65) in the valve element (40) and the stationary housing element (55), in which attenuation region the cross section of the guide element (65; 65a) is reduced.

IPC 8 full level

F02M 47/02 (2006.01); F02M 63/00 (2006.01)

CPC (source: EP)

F02M 47/027 (2013.01); F02M 63/0017 (2013.01); F02M 63/0042 (2013.01); F02M 63/0043 (2013.01); F02M 63/0073 (2013.01); F02M 63/008 (2013.01); F02M 2200/02 (2013.01); F02M 2547/003 (2013.01)

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 102013221554 A1 20150423; CN 105658946 A 20160608; CN 105658946 B 20200121; EP 3060789 A1 20160831; EP 3060789 B1 20170628; WO 2015058929 A1 20150430

DOCDB simple family (application)

DE 102013221554 A 20131023; CN 201480058638 A 20140930; EP 14777325 A 20140930; EP 2014070867 W 20140930