Patent ID: 6455975
Filing Date: 2002-09-24
Classification: H02K

Abstract:
A permanent magnet generator, having a stator and a rotor, where the rotor is attached to a rotatable shaft and where the shaft is capable of axial displacement for adjusting the output of the permanent magnet generator, the improvement comprising:the stator having a tapered inner surface, having a brake lining material disposed thereon; the rotor having a tapered outer surface having a plurality of permanent magnets positioned thereon, the outside surface of said rotor facing the inner surface of said stator; wherein, as the shaft is axially displaced, the distance between the stator inner surface and rotor outer surface changes; a spring positioned adjacent to one end of said rotor; a solenoid positioned adjacent to the opposite end of said rotor; and, where said positioning of said spring and said solenoid is necessary to counteract vibration modes in the axial direction.