| 摘要 |
PURPOSE: A variable air injection air shutter is provided to automatically open a flap by generated wind of a vehicle and continuously flow external air into an engine room, thereby efficiently preventing overheating of the engine. CONSTITUTION: A variable air injection air shutter comprises an actuator(310), a guide plate(320) and a plurality of flaps(330). The actuator provides power of normal rotation and backlashing to a link(312) which is installed at a shaft(311) according to a predetermined temperature of cooling water by a temperature sensor. The guide plate includes a plurality of flap connection parts(322) at regular intervals at the lower part of a link connection part(321) to which one end of the link is connected and ascends and descends according to the rotational position of the link. The flaps include a flap supporting part(331) which is connected to each flap connection part; and a wing piece(333) of the upper side of a rotary shaft(332).
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