EP 1651859 A1 20060503 - HYDRAULIC COUPLER AND FUEL INJECTION VALVE
Title (en)
HYDRAULIC COUPLER AND FUEL INJECTION VALVE
Title (de)
HYDRAULISCHER KOPPLER UND KRAFTSTOFFEINSPRITZVENTIL
Title (fr)
COUPLEUR HYDRAULIQUE ET SOUPAPE D'INJECTION DE CARBURANT
Publication
Application
Priority
- DE 2004001198 W 20040609
- DE 10332874 A 20030719
Abstract (en)
[origin: WO2005010343A1] The invention concerns a hydraulic coupler for a fuel injection valve, comprising a multiplying piston (6) capable of being connected to an actuator (4), in particular to a piezoelectric actuator, and a multiplying piston (7) capable of being connected to an injector needle. A chamber located between the two multiplying pistons (6, 7) is filled with a hydraulic fluid, for the entire life span of the coupler, so as to provide hydraulic coupling between the two multiplying pistons. The invention aims at creating a coupler of simple design and capable of being produced economically. Therefor, one end of the multiplying piston (7) is guided into one end of the other multiplying piston (6). Moreover, a multiplying chamber (14), formed between the surface on one multiplying piston (7) and the other multiplying piston (6), communicates with another housing chamber (15) for the hydraulic fluid and sealed by a sealing element (17) with spring action.
IPC 1-7
IPC 8 full level
F02M 51/06 (2006.01); F02M 61/16 (2006.01); F02M 61/08 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP KR US)
F02M 51/0603 (2013.01 - EP KR US); F02M 61/08 (2013.01 - KR); F02M 61/167 (2013.01 - EP KR US); F02M 61/08 (2013.01 - EP US); F02M 2200/21 (2013.01 - KR); F02M 2200/703 (2013.01 - EP KR US); F02M 2200/706 (2013.01 - EP US)
Citation (search report)
See references of WO 2005010343A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005010343 A1 20050203; AT E487051 T1 20101115; DE 10332874 A1 20050210; DE 502004011854 D1 20101216; EP 1651859 A1 20060503; EP 1651859 B1 20101103; JP 2006528295 A 20061214; JP 4478681 B2 20100609; KR 20060060659 A 20060605; TW 200504282 A 20050201; US 2006214021 A1 20060928
DOCDB simple family (application)
DE 2004001198 W 20040609; AT 04738650 T 20040609; DE 10332874 A 20030719; DE 502004011854 T 20040609; EP 04738650 A 20040609; JP 2006520654 A 20040609; KR 20067001167 A 20060118; TW 93117151 A 20040615; US 56507206 A 20060118