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US08291877B2 Valve drive device 有权
阀门驱动装置

Valve drive device
摘要:
In a valve drive arrangement for an internal combustion engine including a camshaft carrying axially movable cam elements provided with cams for operating gas exchange valves of the internal combustion engine and an actuation device having at least one shift element which is provided to shift cam element by means of a shifting gate between opposite axial positions, the valve drive arrangement has a change-over device for changing the axial shift direction of the shift element from one to the opposite axial position.
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