EP 2581597 B1 20140709 - Fuel injection valve for internal combustion engines with directly actuated valve needle
Title (en)
Fuel injection valve for internal combustion engines with directly actuated valve needle
Title (de)
Kraftstoffeinspritzventil für Brennkraftmaschinen mit direkt angesteuerter Ventilnadel
Title (fr)
Soupape d'injection de carburant pour moteurs à combustion interne avec pointeau de soupape commandé directement
Publication
Application
Priority
DE 102011084342 A 20111012
Abstract (en)
[origin: EP2581597A1] The valve has a valve sealing surface cooperating with a valve seat (7) for opening and closing an injection opening (10). A pressure chamber (5) is filled with fuel under injection pressure, and hydraulic forces are developed on a valve needle (8) and are raised with contact of the valve needle on the valve seat. A bolt extension (13) is formed at the valve needle and opposite to the valve seat surface. The bolt extension is projected into a low pressure chamber (18) and is connected with a mechanical coupler (20). Opening force is exerted on the valve needle by the coupler.
IPC 8 full level
F02M 51/06 (2006.01)
CPC (source: EP)
F02M 51/0603 (2013.01); F02M 2200/28 (2013.01); F02M 2200/702 (2013.01); F02M 2200/703 (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)
EP 2581597 A1 20130417; EP 2581597 B1 20140709; DE 102011084342 A1 20130418
DOCDB simple family (application)
EP 12185618 A 20120924; DE 102011084342 A 20111012