| 摘要 |
PURPOSE:To reduce flow passage resistance and to improve suction efficiency, by a method wherein, in a title device for a vehicle, an outlet is communicated to the suction port of a fan, and a cylindrical damper, being rocked around an outlet to be selectively communicated to an inner air introduction port or an open air introduction port, is situated in a casing. CONSTITUTION:During a state to introduce the open air, an inlet 14 of a damper 10 is positioned in an open air introduction port 3, and an inner air introduction port 2 is closed with the side wall of the damper 10. Simultaneously, gaps between both sides of the damper inlet 14 and a damper chamber 4 are sealed by means of seal members 17a and 17b. During introduction of inner air, a wire 23 of a control mechanism 22 is controlled in the direction of an arrow mark to rock the damper 10 around a pivot 16, and the damper inlet 14 is positioned in the inner air inlet 2 as shown by a solid line. This constitution closes the open air introduction port 3 and seals gaps between both sides of the damper inlet 14 and the damper chamber 4 are sealed by means of the seal members 17a and 17b. This constitution facilitates formation of a flow passage. |
