BorgWarner Inc.
Compact electric machine with combined rotor carrier and clutch housing

Abstract:

An electric machine includes a stator assembly, a rotor positioned within the stator assembly, and a rotor carrier coupled to the rotor. The rotor carrier includes a hub portion, a first cylindrical portion coupled to the hub portion and defining a first diameter that is less than an inner diameter of the rotor, and a second cylindrical portion extending from the first cylindrical portion and defining a second diameter that is greater than the inner diameter of the rotor. A first clutch is positioned within the rotor carrier and engages an inner surface of the first cylindrical portion of the rotor carrier. A second clutch is positioned within the rotor carrier and engages an inner surface of the second cylindrical portion of the rotor carrier.