EP 2872768 A1 20150520 - FLUID INJECTOR
Title (en)
FLUID INJECTOR
Title (de)
FLUIDINJEKTOR
Title (fr)
INJECTEUR DE FLUIDE
Publication
Application
Priority
- DE 102012212266 A 20120713
- EP 2013064106 W 20130704
Abstract (en)
[origin: WO2014009237A1] A fluid injector has a solid state actuator and an injector body. A control piston unit is arranged in a control piston unit recess of the injector body. A transmission pin (15) is arranged in such a way that it penetrates a transmission pin recess in the injector body and couples the solid state actuator mechanically to the control piston unit. A first control chamber (17) is delimited by the control piston unit and the injector body, which first control chamber (17) is coupled hydraulically to a second control chamber. The control piston unit has a control piston (23) which has an end surface (25) at an axial end which faces the transmission pin (15), which end surface (25) is coupled to the transmission pin (15) and delimits the first control chamber (17). Furthermore, the control piston unit has a control sleeve which is arranged coaxially with respect to the control piston (23) and has a radially inwardly directed projection (35), via which driving coupling takes place between the control piston (23) and the control sleeve after overcoming a predefined first control piston stroke of the control piston (23) caused by an elongation of the solid state actuator (7) which is induced by the supply of electrical energy. The control sleeve is arranged and configured in such a way that, during an axial movement of the control piston (23) with existing driving coupling, it influences a free volume of the first control chamber (17).
IPC 8 full level
F02M 61/10 (2006.01); F02M 51/06 (2006.01); F02M 61/16 (2006.01)
CPC (source: EP US)
F02M 51/0603 (2013.01 - EP US); F02M 61/10 (2013.01 - US); F02M 61/167 (2013.01 - EP US); F02M 2200/703 (2013.01 - EP US); F02M 2200/708 (2013.01 - EP US)
Citation (search report)
See references of WO 2014009237A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014009237 A1 20140116; CN 105247199 A 20160113; CN 105247199 B 20180330; DE 102012212266 A1 20140522; DE 102012212266 B4 20150122; EP 2872768 A1 20150520; EP 2872768 B1 20160928; IN 10942DEN2014 A 20150918; US 2015211456 A1 20150730; US 9856843 B2 20180102
DOCDB simple family (application)
EP 2013064106 W 20130704; CN 201380037481 A 20130704; DE 102012212266 A 20120713; EP 13736849 A 20130704; IN 10942DEN2014 A 20141220; US 201314414686 A 20130704