Patent ID: 6864617

Claim:
A rotor of a dynamoelectric machine, the rotor comprising an outer peripheral surface, oppositely-disposed radial end surfaces, axially-extending slots in the outer peripheral surface of the rotor, and field windings in the slots, the field windings axially projecting from the end surfaces of the rotor and being connected together outside of the slots by field winding end turns, the slots having cross-sections of sufficient size so that the field windings are present within a first portion of each slot and not present within a second portion of each slot, the rotor comprising a retaining system surrounding at least one of the field winding end turns at at least a first end of the rotor, the retaining system comprising: a shield member surrounding the field winding end turns, the shield member having flanges that are received in the second portions of the slots adjacent the end surface at the first end of the rotor; a retainer member surrounding the shield member and inhibiting radially-outward movement of the shield member, the retainer member being formed of a material that is more rigid than the material of the shield member; and means for inhibiting axial movement of the retaining system relative to the rotor.