Patent ID: 8961369
Filing Date: 2015-02-24
Classification: B60K,F16D,Y02T,Y10T

Abstract:
1. A torque transfer device comprising: a first housing; a second housing mounted to the first housing, the first and second housings cooperating to define a cavity; a first shaft received in the first housing and extending into the cavity; a plurality of first clutch plates received in the cavity and non-rotatably coupled to the first shaft; a second shaft received in the second housing; an outer clutch drum mounted on the second shaft, the outer clutch drum being received in the cavity and disposed about the first shaft; a plurality of second clutch plates received in the cavity and non-rotatably coupled to the outer clutch drum, the second clutch plates being interleaved with the first clutch plates to form a clutch pack; a first bearing mounted to the first shaft and the first housing, the first bearing supporting the first shaft for rotation relative to the first housing, the first bearing being disposed on a first side of the clutch pack; a second bearing mounted to the outer clutch drum and the second housing, the second bearing supporting the outer clutch drum for rotation relative to the second housing, the second bearing being disposed on a second side of the clutch pack such that the clutch pack is disposed axially along a rotational axis of the first and second shafts between the first and second bearings; an actuator configured to compress the clutch pack against the outer clutch drum to permit rotary power to be transmitted between the first and second shafts; and an electric motor having a stator and an armature, the stator being fixedly coupled to the first and second housings and received in the cavity, the armature being coupled to the outer clutch drum for common rotation.