EP 2054614 B1 20110601 - FUEL INJECTOR WITH PISTON RESTORING OF A PRESSURE INTENSIFIER PISTON
Title (en)
FUEL INJECTOR WITH PISTON RESTORING OF A PRESSURE INTENSIFIER PISTON
Title (de)
KRAFTSTOFFINJEKTOR MIT KOLBENRÜCKHOLUNG EINES DRUCKÜBERSETZERKOLBENS
Title (fr)
INJECTEUR DE CARBURANT COMPRENANT UN RAPPEL DE PISTON D'UN PISTON MULTIPLICATEUR DE PRESSION
Publication
Application
Priority
- EP 2007056865 W 20070706
- DE 102006038840 A 20060818
Abstract (en)
[origin: US2011168812A1] The invention relates to a fuel injector for injecting fuel into a combustion chamber of an internal combustion engine, which fuel injector comprises an injection valve element, for opening and closing at least one injection opening and a pressure booster, by way of which fuel which is at system pressure is compressed to injection pressure. The pressure booster is actuated via a first control valve and the injection valve element is actuated via a second control valve. The pressure booster comprises a pressure booster piston which is assigned a spring element which is supported by way of one side on the injector housing and by way of the other side on the pressure booster piston. The pressure booster piston delimits a compression chamber, a differential pressure chamber and a control chamber. The control chamber is arranged at that end of the pressure booster piston which lies opposite the compression chamber, the spring element is received in the control chamber, and the spring element is supported on one side on the injector housing and on the other side on the pressure booster piston.
IPC 8 full level
F02M 57/02 (2006.01)
CPC (source: EP US)
F02M 47/027 (2013.01 - EP US); F02M 57/025 (2013.01 - EP US); F02M 57/026 (2013.01 - EP US); F02M 59/105 (2013.01 - EP US); F02M 63/0015 (2013.01 - EP US); F02M 63/0026 (2013.01 - EP US); F02M 63/004 (2013.01 - EP US); F02M 63/0043 (2013.01 - EP US); F02M 63/0045 (2013.01 - EP US); F02M 2547/001 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2011168812 A1 20110714; US 8210454 B2 20120703; AT E511602 T1 20110615; CN 101506513 A 20090812; CN 101506513 B 20120808; DE 102006038840 A1 20080221; EP 2054614 A1 20090506; EP 2054614 B1 20110601; JP 2009545701 A 20091224; JP 5049346 B2 20121017; WO 2008019910 A1 20080221
DOCDB simple family (application)
US 37790607 A 20070706; AT 07787148 T 20070706; CN 200780030674 A 20070706; DE 102006038840 A 20060818; EP 07787148 A 20070706; EP 2007056865 W 20070706; JP 2009523222 A 20070706