Patent ID: 7040267

Claim:
A variably adjustable mechanical valve gear for at least one gas-reversing valve of a piston engine, comprising: a driving mechanism for generating a lifting movement for the gas-reversing valve along a movement axis of the gas-reversing valve, the driving mechanism acting against a closing force of a closing spring on the gas-reversing valve; and a stroke transfer means arranged between the driving mechanism and the gas-reversing valve, said stroke transfer means acting upon the gas-reversing valve to move the gas-reversing valve along the movement axis, the stroke transfer means comprising: an adjustable guide element having a control curve for adjusting a stroke distance of the gas-reversing valve along the movement axis; a pivoting element having a first end connected to the driving mechanism and guided to pivot on the adjustable guide element, and a second end acting upon the gas-reversing valve; and a guide member separate from the adjustable guide element, wherein the guide member is locally fixed to the engine, and is connected to the second end of the pivoting element to support movement of the pivoting element.