Patent ID: 8362661

Claim:
A laminated stator for a dynamoelectric machine, comprising: at least one end lamination comprising a plurality of slots for stator windings; at least one first lamination comprising a first plurality of slots in communication with a first plurality of cooling apertures, the stator windings contained within the first plurality of slots; at least one second lamination comprising a second plurality of slots and a second plurality of cooling apertures in communication with the first plurality of cooling apertures, the stator windings contained within the second plurality of slots; wherein the at least one end lamination, the at least one first lamination and the at least one second lamination are configured together into a stator lamination stack, and the plurality of slots form a generally radial cooling passage therethrough and the first and second plurality of cooling apertures form a generally axial cooling passage therethrough for a flow of a cooling medium; and wherein the dynamoelectric machine further comprises a rotor, and wherein the cooling medium flows into the rotor at a first end of the dynamoelectric machine and out of the stator at a second and opposing end of the dynamoelectric machine.