Patent ID: 6868825

Claim:
A throttle valve apparatus for an engine, the throttle valve apparatus comprising: a throttle valve, which controls an amount of air taken into the engine; a throttle shaft, which rotates with the throttle valve; a rotative member, which is fixed with respect to one end portion of the throttle shaft and rotates the throttle shaft; and a throttle housing comprising: a bore portion, which stores the throttle valve openably and closably; a projecting wall, which is disposed outside the bore portion and partially covers the one end portion of the throttle shaft; and a projecting portion, which projects outward from a peripheral surface of the projecting wall in a radial direction of the projecting wall, wherein: the bore portion, the projecting wall and the projecting portion are integrally molded in one piece to comprise the throttle housing; and the projecting portion integrally has: a full open stopper, which restricts rotation of the rotative member in its first rotational direction when the throttle valve is fully opened; and a full close stopper, which restricts rotation of the rotative member in its second rotational direction, which is opposite to the first rotational direction, when the throttle valve is fully closed.