EP 4399404 A1 20240717 - FUEL INJECTOR
Title (en)
FUEL INJECTOR
Title (de)
KRAFTSTOFFINJEKTOR
Title (fr)
INJECTEUR DE CARBURANT
Publication
Application
Priority
- DE 102021129011 A 20211108
- EP 2022081078 W 20221108
Abstract (en)
[origin: WO2023079163A1] The present invention relates to a fuel injector for injecting a fuel into a combustion chamber of an internal combustion engine, in particular a diesel engine, which comprises a feed opening for feeding in fuel, at least one outlet opening for outputting the fuel, a nozzle needle which is movable between a closed position, in which the at least one outlet opening is closed, and an open position, in which the at least one outlet opening is opened, and a primary valve which is arranged downstream of the feed opening and upstream of the nozzle needle and is designed to establish a fluid connection between the feed opening and the nozzle needle only when a positive pressure is exceeded by a region upstream of the primary valve with respect to a region downstream of the primary valve. The fuel injector is characterized by a safety valve which is arranged downstream of the feed opening and upstream of the nozzle needle and is designed to establish a fluid connection between the feed opening and the nozzle needle only when a positive pressure is exceeded by a region downstream of the safety valve with respect to a region upstream of the safety valve.
IPC 8 full level
F02M 63/02 (2006.01); F02M 47/02 (2006.01); F02M 61/04 (2006.01)
CPC (source: EP)
F02M 47/027 (2013.01); F02M 61/04 (2013.01); F02M 63/0205 (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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021129011 A1 20230511; CN 118202143 A 20240614; EP 4399404 A1 20240717; WO 2023079163 A1 20230511
DOCDB simple family (application)
DE 102021129011 A 20211108; CN 202280073824 A 20221108; EP 2022081078 W 20221108; EP 22802657 A 20221108