Patent ID: 6240899
Filing Date: 2001-06-05
Classification: F02B,F02D,Y02T

Abstract:
A throttle valve control device for a throttle valve which controls an amount of intake air of an internal combustion engine, comprising:a main body of the throttle valve device in which an intake air path is formed;a throttle shaft which is rotatably supported by the main body of the throttle valve device, the throttle valve being disposed in the intake air path as well as being operatively secured to the throttle shaft;an electric motor which drives the throttle valve;a gear mechanism which transmits a rotating torque produced by the electric motor to the throttle shaft;a rotating angle sensor for detecting an opening angle of the throttle valve;a default spring arranged to energize the throttle valve at a closing side from a predetermined opened opening angle position of the throttle valve toward the predetermined opened opening angle position;a return spring arranged to energize the throttle valve at an opening side from the predetermined opened opening angle position of the throttle valve toward the predetermined opened opening angle position; anda cover for the main body of the throttle valve device at one end portion side of the throttle shaft, wherein the gear mechanism, the rotating angle sensor, the default spring and the return spring are accommodated between the cover and the main body of the throttle valve device.