Patent ID: 6371080
Filing Date: 2002-04-16
Classification: F02D

Abstract:
A throttle device for an internal-combustion engine which is driven by an electric actuator to open and close a throttle valve for controlling the amount of intake air aspirated by the internal-combustion engine; in said throttle device, a motor used as said electric actuator has two opposite flat surfaces in a yoke forming a motor housing; a motor casing for housing said motor has opposite flat inner surfaces conforming to the contour of said motor housing, and is disposed on the side wall of said throttle body in such a manner as to meet the line orthogonal to the axis of said throttle valve shaft; and, of said opposite flat inner surfaces of said motor casing, all or most part of one inner surface forms the outside wall surface of said intake air passage located downstream of said idle opening position for throttle valve control.