Abstract: A vehicle includes an engine and an electric machine connected to the engine. The engine includes a drive shaft defining an axial centerline and an engine adapter connected to an end of the drive shaft. The engine adapter includes a mount with a plurality of mounting holes, a plurality of bolts extending through the plurality of mounting holes and into the drive shaft, and a central end knob positioned along the axial centerline. The electric machine includes a stator, a rotor and a rotor shaft extending along the axial centerline. The rotor shaft defines a cup structure at an end of the rotor shaft with the central end knob of the engine adapter positioned within the cup structure. A central bolt extends between the rotor shaft and the engine drive shaft.

Abstract: A stator assembly is provided having a generally annular stator core including a plurality of radially inwardly extending stator teeth. A stator wire is wound around each of the plurality of stator teeth to form a plurality of stator coils. Each of the plurality of stator coils are spaced apart to at least partially define a plurality of generally axially extending cooling channels through which a cooling medium, such as oil, flows. Additionally, the plurality of stator teeth each include a respective flanged end portion each adapted to retain an axially extending strip member. The strip member at least partially defines the cooling channel. The cooling medium operates to cool the plurality of stator coils. In the preferred embodiment, at least a portion of the flow of the cooling medium within the cooling channel is turbulent. Additionally, an electromechanical hybrid transmission is disclosed with the stator assembly provided.

Abstract: The apparatus of the present invention provides a stator assembly for an electric device such as a motor or a generator. The stator assembly preferably includes a generally annular stator core having a plurality of stator teeth. A stator wire is wound around each of the stator teeth to form a stator coil. An epoxy resin is applied to the stator coil and around each of the stator teeth such that the stator wire is coated and thereby electrically isolated by the epoxy resin. A coolant channel at least partially defined by the epoxy resin is positioned in close proximity to the stator coil such that the stator assembly remains cool. A corresponding method for manufacturing such a stator assembly is also provided.