EP 1440225 B1 20050803 - HYDRAULIC ACTUATOR FOR AN ENGINE VALVE
Title (en)
HYDRAULIC ACTUATOR FOR AN ENGINE VALVE
Title (de)
HYDRAULISCHER AKTOR FÜR EIN GASWECHSELVENTIL
Title (fr)
ACTIONNEUR HYDRAULIQUE POUR SOUPAPE DE MOTEUR
Publication
Application
Priority
- DE 0202791 W 20020730
- DE 10151773 A 20011019
- DE 10228702 A 20020627
Abstract (en)
[origin: WO03038246A2] The invention relates to a hydraulic actuator for gas exchange valves of internal combustion engines, said actuator exerting a large force to lift the gas exchange valve off the valve seat. The opening movement of the gas exchange valve is then carried out with reduced force. On closing the gas exchange valve, said gas exchange valve is braked before meeting the valve seat, in such a way that the gas exchange valve can be operated in a quiet and non-abrasive manner.
IPC 1-7
IPC 8 full level
F01L 9/10 (2021.01); F16K 31/122 (2006.01)
CPC (source: EP US)
F01L 9/10 (2021.01 - EP US); F01L 2001/34446 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03038246 A2 20030508; WO 03038246 A3 20030828; AT E301239 T1 20050815; EP 1440225 A2 20040728; EP 1440225 B1 20050803; JP 2005507046 A 20050310; JP 4314115 B2 20090812; US 2004050350 A1 20040318; US 6776129 B2 20040817
DOCDB simple family (application)
DE 0202791 W 20020730; AT 02762231 T 20020730; EP 02762231 A 20020730; JP 2003540495 A 20020730; US 45082403 A 20030618