Patent ID: 8614538

Claim:
An electric machine module comprising: an electric machine including a rotor and a stator with stator end turns; the stator circumscribing at least a portion of the rotor; a rotor hub coupled to the rotor, the surface of the rotor hub integrally including a plurality of axial fins on both axial sides of the rotor hub; a housing including at least two removably-coupled frame members, each of the at least two removably-coupled frame members including an inner wall at least partially defining a machine cavity and capable of partially enclosing the electric machine, and an outer wall; coolant cavities defined between the inner wall and the outer wall of each of the at least two removably-coupled frame members, each coolant cavity positioned substantially around a stator end turn radially and substantially beside a stator end turn axially and substantially beside at least a portion of the rotor radially; and wherein each coolant cavity defines a single and separate flow path in each of the at least two removably-coupled frame members.