Patent ID: 8020683
Filing Date: 2011-09-20
Classification: E05Y,F16D

Abstract:
1. A magnetic friction clutch, comprising: a driving gear to receive torque from a prime mover; an output shaft to output torque from the prime mover to a driven device when the clutch is engaged; three friction discs: a magnetic circuit including an electromagnetic coil operable, when energized, to clamp the three friction discs together to allow torque to be transferred from a prime mover to a driven device through the friction discs; and a rotor which turns with the output shaft and an armature which turns with the driving gear, the rotor making frictional contact with the frictional coating of the first driving disc and the armature making frictional contact with the second driving disc when the magnetic circuit is energized; wherein the frictional coating is Ferrous Aluminide.