Valve drive with alternating cams for gas exchange valves - has second U=shaped transfer lever and tappet, for large active lift

摘要

The device has two transfer levers, and a slidable pressure tappet (8) is tangentially guided in the second lever (6). The tappet is supported on a valve via a tolerance compensation device (10). The second lever (5) is in positive engagement with the end face of the tappet, away from the valves, when the driver device (12) is inactive. The second lever may be positively connected to the tappet, via the switchable driver device, which is located on it. One or both levers are held in positive engagement with the associated cam, via springs, which are supported on the cylinder head. USE/ADVANTAGE - IC engine valve gear. During large active valve lift transfer elements, for low strokes only, are disconnected.