Patent ID: 7476994
Filing Date: 2009-01-13
Classification: H02K

Abstract:
1. A high power generator, comprising: a generator housing; a stator mounted within the generator housing; a shaft rotationally mounted within the generator housing, and including an inner surface that defines an internal fluid flow passage, an outer surface, and a plurality of interlamination cooling supply orifices extending between the shaft inner and outer surfaces and circumferentially disposed on and evenly spaced about the shaft, the internal fluid flow passage configured to receive a flow of a cooling medium, and each interlamination cooling supply orifice in fluid communication with the internal fluid flow passage; and a rotor mounted on the shaft and disposed at least partially within and spaced apart from the stator to form an air gap there-between, the rotor including: a plurality of poles, each pole extending radially outwardly from the shaft and formed of at least a plurality of laminations, and one or more interlamination disks, each interlamination disk disposed between at least two of the laminations and including a plurality of fluid inlets, a plurality of fluid outlets, and a plurality of interlamination flow passages, each fluid inlet in fluid communication with one of the shaft interlamination cooling supply orifices, each fluid outlet in fluid communication with the air gap, and each interlamination flow passage extending between one of the fluid inlets and one of the fluid outlets.