EP 2440769 B1 20180228 - INJECTION VALVE WITH A TRANSMISSION ASSEMBLY
Title (en)
INJECTION VALVE WITH A TRANSMISSION ASSEMBLY
Title (de)
EINSPRITZVENTIL MIT ÜBERTRAGUNGSEINHEIT
Title (fr)
SOUPAPE D'INJECTION AVEC UN ENSEMBLE DE TRANSMISSION
Publication
Application
Priority
- EP 2010058158 W 20100610
- DE 102009024596 A 20090610
Abstract (en)
[origin: WO2010142767A1] The invention relates to an injection valve (1) for injecting fuel into an internal combustion engine, comprising an actuator (7) and an injection needle (5) that is associated with a sealing seat (10). A hydraulic transmission unit (40) is provided which establishes an effective connection between the actuator (7) and the injection needle (5). The transmission unit (40) includes two movable pistons (12, 17), between which a movable pot (42) is arranged. The movable pot (42) is guided within another stationary pot (14). The first piston (12) is guided through the bottom (13) of the other pot (14) while maintaining a third sealing gap (49), and the second piston (17) is guided within a sleeve section of the pot (42) while maintaining a fourth sealing gap (50). A first chamber (46) is formed between the other pot (42) and pot (14), and a second chamber is formed between pot (14) and the second piston (17). The two chambers (46, 47) are interconnected via at least one duct (44, 45). One piston (12, 17) is effectively connected to the injection needle (5), and the other piston (12, 17) is effectively connected to the actuator (7).
IPC 8 full level
F02M 47/02 (2006.01); F02M 51/06 (2006.01)
CPC (source: EP US)
F02M 47/027 (2013.01 - US); F02M 51/0603 (2013.01 - EP US); F02M 2200/70 (2013.01 - EP US); F02M 2200/704 (2013.01 - 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 SE SI SK SM TR
DOCDB simple family (publication)
WO 2010142767 A1 20101216; DE 102009024596 A1 20110407; EP 2440769 A1 20120418; EP 2440769 B1 20180228; US 2012160214 A1 20120628; US 9222451 B2 20151229
DOCDB simple family (application)
EP 2010058158 W 20100610; DE 102009024596 A 20090610; EP 10721180 A 20100610; US 201013377240 A 20100610