A crank drive device for an internal combustion engine which comprises a crankshaft configured to be eccentrically connected to a connecting rod of a piston and to drive the drive shaft. The crankshaft is eccentrically connected to the camshaft and is rotatably supported with respect to the camshaft. An auxiliary motor which is configured to rotate the rotatable eccentric system.

A crank drive device for an internal combustion engine which comprises a crankshaft configured to be eccentrically connected to a connecting rod of a piston and to drive the drive shaft. The crankshaft is eccentrically connected to the camshaft and is rotatably supported with respect to the camshaft. An auxiliary motor which is configured to rotate the rotatable eccentric system.

A crank drive device for an internal combustion engine which comprises a crankshaft configured to be eccentrically connected to a connecting rod of a piston and to drive the drive shaft. The crankshaft is eccentrically connected to the camshaft and is rotatably supported with respect to the camshaft. An auxiliary motor which is configured to rotate the rotatable eccentric system.

A crank drive device for an internal combustion engine which comprises a crankshaft configured to be eccentrically connected to a connecting rod of a piston and to drive the drive shaft. The crankshaft is eccentrically connected to the camshaft and is rotatably supported with respect to the camshaft. An auxiliary motor which is configured to rotate the rotatable eccentric system.