An intake control type speed limiting mechanism is provided between a manifold connected to a carburetor and a reed valve connected to a crankcase, and includes an inverted conic body having an upper opening sized slightly smaller than an outlet of the man...

An improved in-wheel motor structure (30) comprising a stator (32), integrating to a car frame fixing arm (40) as one unit, a rotor (31) assembling with a wheel frame of the wheel as one unit; a shaft (34), integrating with the rotor as one unit, wherein t...

An automobile dual-power automatic transmission box (10) supplies two different power sources to a wheel (16) to drive an automobile and includes a first power source (11) for rotating a first drive shaft (111), a second drive shaft (112) rotated by the fi...