Abstract: An electric drive module has an electric motor with a hollow rotor and a gearbox output shaft extending coaxially within the hollow rotor. Cooling medium cycles through an annular volume defined between the rotor and the shaft. A distribution housing is fixed relative to the motor housing and extends around the output shaft to define an annular chamber that receives cooling medium from an inlet of the distribution housing. The shaft and rotor rotate relative to the annular chamber, and cooling medium from the annular chamber is directed by the distribution housing into the annular volume to cool the rotor. The distribution housing may include an annular seal that engages an end face of the hollow rotor. The distribution sleeve may extend into the annular volume, or may be a two-piece structure with an outer housing and an inner sleeve.

Abstract: An articulating multi-body system includes first, second and third bodies, and a displacement clutch. The clutch is mounted to the second body, and includes first and second spools, and first and second cables. The first and second spools include respective first and second mating threads centered about the centerline. The first and second spools are each adapted to rotate about the centerline between fully spooled states, mid-states, and unspooled states. The first and second cables extend between, and are connected to, the respective first and third bodies and the respective first and second spools for cable spooling. A maximum axial distance exists between the first and second spools when in the fully spooled states, and the first and second spools make axial contact with one-another when one is in the fully spooled state and the other is in the unspooled state.

Abstract: An articulating multi-body system includes first, second and third bodies, and a displacement clutch. The clutch is mounted to the second body, and includes first and second spools, and first and second cables. The first and second spools include respective first and second mating threads centered about the centerline. The first and second spools are each adapted to rotate about the centerline between fully spooled states, mid-states, and unspooled states. The first and second cables extend between, and are connected to, the respective first and third bodies and the respective first and second spools for cable spooling. A maximum axial distance exists between the first and second spools when in the fully spooled states, and the first and second spools make axial contact with one-another when one is in the fully spooled state and the other is in the unspooled state.