Patent ID: 8776976

Claim:
An electromagnetic friction clutch, comprising a rotor including an axial extension thereof, an electromagnet enclosed within the rotor, a further clutch element, which orbits a common axis of rotation with the rotor and is supported so that it can rotate relative to the rotor, eddy current elements for transmitting a rotational movement on the principle of an eddy current clutch, one of the eddy current elements being rotationally fixed to the further clutch element, and one or more magnetic elements rotationally fixed to the rotor so as to orbit said one of the eddy current elements, wherein the eddy current elements, the one or more magnetic elements and the axial extension of the rotor are arranged in this order and spaced radially from one another in a direction extending radially outward from the axis of rotation of the clutch, wherein the axial extension of the rotor extends away from the electromagnet and encloses the eddy current elements and the one or more magnetic elements, and wherein the rotor concentrates and conducts magnetic flux to attract the further clutch element.