Global Patent Index - EP 3580445 B1

EP 3580445 B1 20220914 - FUEL INJECTOR NOZZLE ASSEMBLY

Title (en)

FUEL INJECTOR NOZZLE ASSEMBLY

Title (de)

KRAFTSTOFFEINSPRITZDÜSENANORDNUNG

Title (fr)

ENSEMBLE FORMANT UNE BUSE D'INJECTEUR DE CARBURANT

Publication

EP 3580445 B1 20220914 (EN)

Application

EP 18705587 A 20180209

Priority

  • GB 201702265 A 20170210
  • EP 2018053272 W 20180209

Abstract (en)

[origin: GB2559598A] A nozzle assembly 14 of a fuel injector 12 comprising a body 16 wherein is guided a valve assembly 18 with a needle member 20 and a needle motion controller (NMC) 22 that cooperates with the inner face of said body 16. The body has an inner space S divided into an upstream chamber UC and downstream chamber DC. The NMC is provided with fluid communication(s) (F1, F2 figure 3) between the chambers evolving from a restricted flow state, when the valve assembly is in a closed position, to an unrestricted flow state when the valve assembly is lifted away from said closed position. F1 may be active when the valve assembly is in a closed position when F2 is inactive, which may become active and predominate over F1when the valve assembly lifts away from the closed position. Preferably there is a shutter member (34, figure 2) that activates F2 after the needle member has lifted away. The NMC is preferable a collar member.

IPC 8 full level

F02M 61/20 (2006.01)

CPC (source: EP GB)

F02M 61/205 (2013.01 - EP GB); F02M 2200/28 (2013.01 - EP GB); F02M 2200/304 (2013.01 - GB); F02M 2547/008 (2013.01 - GB)

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)

GB 201702265 D0 20170329; GB 2559598 A 20180815; GB 2559598 B 20200408; EP 3580445 A1 20191218; EP 3580445 B1 20220914; WO 2018146249 A1 20180816

DOCDB simple family (application)

GB 201702265 A 20170210; EP 18705587 A 20180209; EP 2018053272 W 20180209