Patent ID: 8446056

Claim:
An electric machine module comprising: an electric machine including a stator; a housing at least partially circumscribing the electric machine, the housing including at least two housing members including a first housing member and a second housing member coupled together and substantially securing the electric machine within the housing, the housing at least partially defining a machine cavity; a coolant jacket at least partially defined by an outer surface of the outer diameter of the stator and an inner surface of an inner diameter portion of the first housing member and an inner surface of an inner diameter portion of the second housing member, the coolant jacket covering at least a majority of the outer surface area of the stator and extending substantially continuously across an axial length of the stator to a region substantially adjacent to each axial end of the stator; and a plurality of cooling apertures defined between a portion of the stator and the housing, the plurality of coolant apertures being in fluid communication with the coolant jacket and the machine cavity.