EP 1226354 B1 20050921 - HYDRAULIC CONTROL DEVICE, IN PARTICULAR FOR AN INJECTOR
Title (en)
HYDRAULIC CONTROL DEVICE, IN PARTICULAR FOR AN INJECTOR
Title (de)
HYDRAULISCHE STEUERVORRICHTUNG, INSBESONDERE FÜR EINEN INJEKTOR
Title (fr)
DISPOSITIF DE COMMANDE HYDRAULIQUE, EN PARTICULIER POUR UN INJECTEUR
Publication
Application
Priority
- DE 0003590 W 20001012
- DE 19951004 A 19991022
Abstract (en)
[origin: US6820820B1] The invention is based on a hydraulic control device (60), in particular for an injector (16) of a fuel injection system (10) in motor vehicles. Known control devices have a piezoelectric actuator, which controls a multi-position valve (75), embodied as an outward-opening valve with a valve member (74) guided in a valve bore (76).According to the invention, it is proposed that a booster (62) that reverses the deflection motion of the actuator (52) be disposed between the actuator (52) and the valve member (74), and that the multi-position valve (75) be embodied as an inward-opening 3/2-way valve. The valve member (74) of this valve, in operative connection with a valve seat (98) and a control edge (96), alternatingly opens or closes pressure fluid connections between pressure fluid conduits (86, 88, 92).
IPC 1-7
IPC 8 full level
F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 51/06 (2006.01); F02M 61/16 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP US)
F02M 47/025 (2013.01 - EP US); F02M 47/027 (2013.01 - EP US); F02M 61/167 (2013.01 - EP US); F02M 63/0026 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6820820 B1 20041123; AT E305090 T1 20051015; CN 1196857 C 20050413; CN 1382249 A 20021127; CZ 20021334 A3 20031015; CZ 295509 B6 20050817; DE 19951004 A1 20010426; DE 50011226 D1 20051027; EP 1226354 A2 20020731; EP 1226354 B1 20050921; JP 2003512573 A 20030402; WO 0129395 A2 20010426; WO 0129395 A3 20011227
DOCDB simple family (application)
US 11128902 A 20020808; AT 00982991 T 20001012; CN 00814670 A 20001012; CZ 20021334 A 20001012; DE 0003590 W 20001012; DE 19951004 A 19991022; DE 50011226 T 20001012; EP 00982991 A 20001012; JP 2001532357 A 20001012