Patent ID: 6488010
Filing Date: 2002-12-03
Classification: F02D

Abstract:
A throttle device driven by a motor to open and close a throttle valve to control the amount of intake air of an internal-combustion engine, comprising:a throttle body equipped with said throttle valve and said motor; a reduction gear mechanism which transmits the power of said motor to a throttle valve shaft; and a stopper defining a mechanically full-closed position of said throttle valve; wherein said reduction gear mechanism is arranged on a side wall of said throttle body and covered by a synthetic resin cover attached on said side wall, a gear of said reduction gear mechanism is fixed on one end of said throttle valve shaft, a side of said gear comes in contact with said stopper in said mechanically full-closed position of said throttle valve, and said stopper is located inside a cover attachment surface of said throttle body which attached said synthetic resin cover.