EP 0455763 B1 19931229 - HYDRAULIC CONTROL DEVICE FOR THE VALVES OF A MULTI-CYLINDER INTERNAL-COMBUSTION ENGINE.
Title (en)
HYDRAULIC CONTROL DEVICE FOR THE VALVES OF A MULTI-CYLINDER INTERNAL-COMBUSTION ENGINE.
Title (de)
HYDRAULISCHE VENTILSTEUERVORRICHTUNG FÜR EINE MEHRZYLINDER-BRENNKRAFTMASCHINE.
Title (fr)
DISPOSITIF DE COMMANDE HYDRAULIQUE DE SOUPAPES POUR UN MOTEUR A COMBUSTION INTERNE MULTICYLINDRE.
Publication
Application
Priority
DE 3939002 A 19891125
Abstract (en)
[origin: WO9108380A1] The invention concerns an engine cylinder valve control device with a reservoir (26) associated with a pressure chamber (19) in the valve tappet, the reservoir having a piston (23) which also acts as a valve to separate the reservoir (26) from the pressure chamber (19). The piston (23) can be displaced, by a hydraulic control device (37, 38, 39) operating in conjunction with a magnetic valve (36), from its position of rest into a reservoir mode. This enables several valve-control units in an engine to be controlled by a single magnetic valve (36), provided their control times do not overlap.
IPC 1-7
IPC 8 full level
F01L 1/24 (2006.01); F01L 9/02 (2006.01); F01L 9/14 (2021.01)
CPC (source: EP US)
F01L 9/14 (2021.01 - EP US); F01L 2001/34446 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
WO 9108380 A1 19910613; DE 3939002 A1 19910529; DE 59004046 D1 19940210; EP 0455763 A1 19911113; EP 0455763 B1 19931229; ES 2048509 T3 19940316; JP H04502950 A 19920528; US 5165369 A 19921124
DOCDB simple family (application)
DE 9000820 W 19901026; DE 3939002 A 19891125; DE 59004046 T 19901026; EP 90915300 A 19901026; ES 90915300 T 19901026; JP 51422790 A 19901026; US 68858991 A 19910628