EP 3362671 B1 20190717 - PIEZOELECTRIC INJECTOR FOR FUEL INJECTION
Title (en)
PIEZOELECTRIC INJECTOR FOR FUEL INJECTION
Title (de)
PIEZO-INJEKTOR ZUR KRAFTSTOFFEINSPRITZUNG
Title (fr)
INJECTEUR PIÉZOÉLECTRIQUE POUR L'INJECTION DE CARBURANT
Publication
Application
Priority
- DE 102015219912 A 20151014
- EP 2016074182 W 20161010
Abstract (en)
[origin: WO2017063988A1] The invention relates to a piezoelectric injector (1) for fuel injection, comprising a nozzle unit (3) having a nozzle needle (5) movably arranged in a nozzle body (7); a piezoelectric actuator unit (9); a hydraulic coupler unit (11) for coupling the nozzle unit (3) with the actuator unit (9), which has a coupler piston (13), a coupler cylinder (15) and a coupler spring (17), wherein the coupler piston (13) has an upper side (26) facing the coupler cylinder (15) and an underside (28) facing the nozzle needle (5), wherein the coupler piston (13) is pressed by the coupler spring (17) against an end face (23) of the nozzle needle (5) facing the underside (28) of the coupler piston (13) and has a contact surface (21) with the nozzle needle (5), wherein the coupler piston (13) has a through opening (25) which provides a flow connection from the underside (28) thereof to the upper side (26) thereof, and which is arranged within the contact surface (21) with the nozzle needle (5).
IPC 8 full level
F02M 63/00 (2006.01); F02M 51/06 (2006.01); F02M 61/08 (2006.01); F02M 61/16 (2006.01)
CPC (source: EP KR US)
F02M 51/0603 (2013.01 - EP KR US); F02M 61/08 (2013.01 - EP KR US); F02M 61/167 (2013.01 - EP KR US); F02M 63/0026 (2013.01 - US); F02M 63/0033 (2013.01 - US); F02M 63/0077 (2013.01 - US); F02M 2200/703 (2013.01 - EP KR US); F02M 2200/708 (2013.01 - EP KR 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 102015219912 B3 20170406; CN 108138716 A 20180608; EP 3362671 A1 20180822; EP 3362671 B1 20190717; EP 3362671 B8 20191218; KR 102082589 B1 20200227; KR 20180063894 A 20180612; US 2018298861 A1 20181018; WO 2017063988 A1 20170420
DOCDB simple family (application)
DE 102015219912 A 20151014; CN 201680060312 A 20161010; EP 16779084 A 20161010; EP 2016074182 W 20161010; KR 20187013535 A 20161010; US 201615767449 A 20161010