Patent ID: 6609992
Filing Date: 2003-08-26
Classification: F16H,H02K

Abstract:
An automotive alternator comprising:a stator core having a stator winding; front and rear brackets which hold said stator core from both sides; a rotor core which is attached to a rotation shaft that is rotatably mounted on said brackets, and has a field winding; a one-way clutch which has a driving member and a driven member, said driven member being fixed to said rotation shaft; an overdrive planetary gear mechanism which has a sun gear, a planet gear, and an outer ring gear, said sun gear being fixed to said rotation shaft, one end of a support shaft of said planet gear being fixed to said driving member of said one-way clutch, said outer ring gear being rotatably supported; an input shaft to which another end of said support shaft of said planet gear of said overdrive planetary gear mechanism is fixed, and which receives a driving force from an internal combustion engine; and an electromagnetic brake which operates in response to energization to block rotation of said outer ring gear of said overdrive planetary gear mechanism, wherein said driving member and said input shaft are different components of said automotive alternator.