Patent ID: 6357561
Filing Date: 2002-03-19
Classification: F16D

Abstract:
A rotor assembly, comprising:a rotor having a plurality of rotor holes disposed about an axis; a hub having a plurality of pin holes that align with the plurality of rotor holes, a central axle hole and a plurality of axle attachment holes, the plurality of pin holes for securing the hub to the rotor; a plurality of thermal expansion bushings disposed within the plurality of rotor holes, each thermal expansion bushing having an internal slot, the slot having length that extends radially away from the axis of the rotor and a width that is shorter than the slot length; a plurality of drive pins disposed within the plurality of pin holes and the plurality of thermal expansion bushings, one associated with each slot, each drive pin having a diameter that is not greater than an associated slot width; and a means for securing each drive pin to the hub and the rotor, wherein the plurality of thermal expansion bushings, the plurality of drive pins, and the means for securing each drive pin to the hub and the rotor are configured to permit the rotor to thermally expand in a high speed/temperature environment while protecting the rotor from deformation by compressive impact of the plurality of drive pins acting on the rotor.