Patent ID: 7001297

Claim:
A hybrid transmission comprising: a housing having a common axis defined thereby, the housing being adapted to be positioned beside an engine when the hybrid transmission is mounted on a motor vehicle; a differential speed change unit installed in the housing at a position near the engine and arranged coaxial with the common axis; a two-rotor type motor/generator unit installed in the housing at a position away from the engine and arranged coaxial with the common axis, the motor/generator unit having inner and outer rotors; an inner rotor shaft connected with the inner rotor to rotate therewith, the inner rotor shaft being hollow and coaxial with the common axis and extending to the differential speed change unit to be operatively connected to the same; and an outer rotor shaft rotatably received in the hollow inner rotor shaft and extending to the differential speed change unit to be operatively connected to the same, the outer rotor shaft being connected to the outer rotor through a circular drive plate which is positioned at one axial end of the motor/generator unit that is opposite to the other axial end that faces the differential speed change unit, wherein an outer rotor assembly comprising the outer rotor, the circular drive plate and the outer rotor shaft is rotatably supported in the housing by means of at least three supporting members, wherein the circular drive plate is formed at its diametrically center portion with a cylindrical hub portion in which an axial end portion of outer rotor shaft is concentrically received through a spline connection, and wherein the circular drive plate is formed near the cylindrical hub portion with a swing permission structure through which the outer rotor shaft is permitted to make a swing about the axially end portion thereof.