Patent ID: 8662038

Claim:
A chain drive for an internal combustion engine, comprising: a compensating device for vibration reduction, said compensating device including: a driven shaft rotatable about an axis of rotation, a drive wheel, which is coupled to the driven shaft, a drive chain, at least one compensating mass, the compensating mass being movable relative to the drive wheel, wherein the at least one compensating mass is movable in a circular arc about the axis of rotation of the driven shaft, and at least one actuating mechanism for moving the at least one compensating mass relative to the drive wheel, said at least one actuating mechanism configured for applying a force on the compensating mass in a tangential direction relative to the drive wheel, wherein the at least one actuating mechanism is arranged between the drive wheel and the at least one compensating mass and is formed as a tangentially moving, actively acting actuator in order to move the compensating mass and the drive wheel relative to one another by applying the force in the tangential direction in or counter to the rotational direction of the shaft to create a compensating torque on the driven shaft for vibration reduction in the chain drive.