Patent ID: 8225756

Claim:
An adjusting device for variable valve controllers of internal combustion engines, comprising a rotatably mounted adjusting shaft for adjusting the valve movement, and actuating means which act upon the rotatably mounted adjusting shaft and effect an adjusting rotation thereof, wherein the actuating means at least comprise: a) a mechanical reversing gear which derives the adjusting power required for the adjusting rotation from the crankshaft of the engine or another rotating shaft, whose rotation is derived from the crankshaft, b) switchable coupling means for transmitting the adjusting power from the reversing gear to the rotatably mounted adjusting shaft wherein the reversing gear comprises a crank-rocker mechanism, whose crank is mounted on a camshaft, which rotates in the engine and from which the adjusting power is taken, and whose rocker is mounted coaxially with respect to the rotatably mounted adjusting shaft and is connectable thereto directly or indirectly by means of a switch coupling, or a slider crank, whose crank is mounted on the camshaft, which rotates in the engine and from which the adjusting power is taken, and whose slider is mounted coaxially with respect to the rotatably mounted adjusting shaft and can be connected thereto directly or indirectly by means of a switch coupling.