US Patent 7171945 Throttle device for multipurpose engine

In a multipurpose engine throttle device having a throttle body disposed at an intake pipe of the engine and housing a throttle valve, a case is integrally attached to the throttle body and housing an electric motor moving the throttle valve, a speed reducer connecting an output shaft of the motor with the throttle valve, an electronic circuit board having an electronic control unit that controls operation of the motor and a connector mounted thereon, and a harness connecting the motor with the connector, thereby reducing in overall size by efficient layout of these components.