Patent ID: 8659190

Claim:
An electric machine module comprising: a housing at least partially defining a machine cavity; and an electric machine positioned substantially within the machine cavity and at least partially enclosed by the housing, the electric machine including a rotor assembly including a rotor hub coupled to a plurality of rotor laminations, the rotor hub including a first axial end and a second axial end, the first axial end substantially opposing the second axial end, at least a portion of the rotor laminations comprising at least one aperture so that when the plurality of rotor laminations are coupled to the rotor hub, the apertures of the rotor laminations are configured and arranged to support at least one magnet, the rotor assembly comprising a plurality of coolant channels fluidly coupled with the machine cavity, at least a first rotor hub inlet disposed in a portion of the rotor hub substantially adjacent to the first axial end, and at least a second rotor hub inlet disposed in a portion of the rotor hub substantially adjacent to the second axial end, the first rotor hub inlet fluidly coupled with at least one of the plurality of coolant channels and the second rotor hub inlet fluidly coupled with at least one of the plurality of coolant channels, and wherein the at least one coolant channel that is fluidly coupled with the first rotor hub inlet and the at least one coolant channel that is fluidly coupled with the second rotor hub inlet are not the same coolant channels.