EP 1915525 B1 20121010 - DIVIDED DOUBLE SEAT INJECTION VALVE MEMBER
Title (en)
DIVIDED DOUBLE SEAT INJECTION VALVE MEMBER
Title (de)
GETEILTES EINSPRITZVENTILGLIED MIT DOPPELSITZ
Title (fr)
OBTURATEUR EN PLUSIEURS PARTIES POURVU D'UN SIEGE DOUBLE
Publication
Application
Priority
- EP 2006064136 W 20060712
- DE 102005037956 A 20050811
Abstract (en)
[origin: WO2007017335A1] The invention relates to a fuel injector (10) having a complex injection valve member (14) for injecting fuel into a combustion chamber (54) of an internal combustion engine. The complex injection valve member (14) comprises an outer part (18), impinged upon with pressure by a first pressure compartment (20), and at least one inner part (16; 16.1, 16.2), impinged upon with pressure by a second pressure compartment (34). The at least one inner part (16; 16.1, 16.2) comprises at least one pressure stage (36, 38) and a seat (40) having an outer part (18). A seat (42) of the outer part (18) is configured inside the nozzle body (12). Once the seat (40) of the at least one inner part (16; 16.1 and 16.2) in the outer part is opened, the opening force of the outer part (18) is reduced depending on the product of a pressure difference ?p between the system pressure p<SUB>D</SUB> and a pressure p<SUB>S</SUB> in front of the injection openings (46) having a difference in area between the seat surface of the seat (42) of the outer part (18) minus a bore surface of a bore (52) for the seat (40) of the at least one inner part (16; 16.1, 16.2).
IPC 8 full level
F02M 45/08 (2006.01); F02M 47/02 (2006.01)
CPC (source: EP)
F02M 45/086 (2013.01); F02M 47/02 (2013.01); F02M 61/18 (2013.01); F02M 2200/46 (2013.01)
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005037956 A1 20070215; EP 1915525 A1 20080430; EP 1915525 B1 20121010; WO 2007017335 A1 20070215
DOCDB simple family (application)
DE 102005037956 A 20050811; EP 06764141 A 20060712; EP 2006064136 W 20060712