Patent ID: 7896147

Claim:
A disengageable generator drive system comprising: a first engagement member coupled to a generator; a second engagement member coupled to a prime mover; the first engagement member being axially displaced responsively to a braking force; a brake rotor disc; and at least two electromagnets arranged as a first pair of electromagnets positioned on a first side of the rotor disc for applying eddy current braking force to the rotor disc to produce axial displacement of the first engagement member; at least two electromagnets arranged as a second pair of electromagnets positioned on a second side of the rotor disc opposite the first side of the rotor disc for applying eddy current braking force to the rotor disc to produce axial displacement of the first engagement member; each one of the electromagnets of the first pair being aligned with one of the electromagnets of the second pair; wherein the aligned electromagnets have opposite polarities.