Patent ID: 6821094
Filing Date: 2004-11-23
Classification: B60H,F04B,F04C

Abstract:
A vehicular rotational apparatus that is driven by an external drive source, the rotational apparatus comprising:a housing; a rotary shaft rotatably supported by the housing; a first rotary body operably connected to the rotary shaft, wherein the first rotary body includes a power transmission portion, and wherein, when power is transmitted from the external drive source to the power transmission portion, the first rotary body is rotated; an electric motor for rotating the rotary shaft, wherein the electric motor includes a second rotary body, which is operably connected to the rotary shaft, and wherein at least part of the electric motor overlaps the power transmission portion in the axial direction of the rotary shaft; a first clutch mechanism located between the first rotary body and the rotary shaft, wherein the first clutch mechanism selectively permits and prevents power transmission between the first rotary body and the rotary shaft; and a second clutch mechanism located between the second rotary body and the rotary shaft, wherein the second clutch mechanism selectively permits and prevents power transmission between the second rotary body and the rotary shaft.