EP 1427918 B1 20080305 - VALVE MECHANISM FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
VALVE MECHANISM FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
VENTILTRIEB FÜR EINE BRENNKRAFTMASCHINE
Title (fr)
DISTRIBUTION DANS MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 10144712 A 20010911
- DE 10212327 A 20020320
- EP 0209379 W 20020822
Abstract (en)
[origin: WO03023197A1] The invention relates to a valve mechanism for an internal combustion engine, comprising at least two inlet and/or outlet valves (EV1, EV2, AV1, AV2) per cylinder which can be activated by the inlet and/or outlet camshaft (8); in addition to lift transmission elements (4) which are arranged between the camshafts (6,7) of the inlet and/or outlet camshaft, and means for altering the valve lift of the inlet and/or outlet valves. At least two inlet valves and/or two outlet valves per cylinder cooperate with at least two partial cams (24, 25, 26) having two different lift curves, and the lift transmission elements (4) of the gas exchange valves are provided with at least two lift elements (22, 23) which respectively cooperate with the partial cams (24, 25, 26) and with the hydraulic supply lines for switching purposes. According to the invention, the supply lines (34, 44) for switching a first inlet or outlet valve (EV1, AV2) are separate from the supply lines (40, 48) for switching a second inlet or outlet valve (EV2, AV2), whereby a first inlet or outlet valve (EV1, AV1) can be switched independently from the second inlet or outlet valve (EV2, AV2). As a result two-step valve switching can be achieved in a simple manner.
IPC 8 full level
F01L 13/00 (2006.01); F01L 1/053 (2006.01); F01L 1/14 (2006.01); F01L 1/26 (2006.01); F01L 1/34 (2006.01); F01L 1/344 (2006.01)
CPC (source: EP)
F01L 1/0532 (2013.01); F01L 1/143 (2013.01); F01L 1/267 (2013.01); F01L 1/34 (2013.01); F01L 1/3442 (2013.01); F01L 13/00 (2013.01); F01L 13/0005 (2013.01); F01L 13/0036 (2013.01); F01L 2307/00 (2020.05)
Designated contracting state (EPC)
AT DE FR GB IT
DOCDB simple family (publication)
WO 03023197 A1 20030320; AT E388306 T1 20080315; DE 50211849 D1 20080417; EP 1427918 A1 20040616; EP 1427918 B1 20080305; JP 2005502808 A 20050127
DOCDB simple family (application)
EP 0209379 W 20020822; AT 02769980 T 20020822; DE 50211849 T 20020822; EP 02769980 A 20020822; JP 2003527244 A 20020822