To provide an air intake duct for vehicle that suppresses flowing-out of high temperature air in an engine room to an engine side during stopping or low-speed travelling, and suppresses flowing-out of water to the engine side when water flows in the interior.SOLUTION: An air intake duct 1 for vehicle comprises a first suction port for taking in ambient air, a second suction port for taking air in an engine room into a hollow part, and a drain which discharges water. A shutter part comprises a lower side flap which opens/closes the drain and an upper side flap which opens/closes the second suction port, and a boundary part between the lower side flap and the upper side flap is rotatably supported around a shaft horizontally extending. In the state that water does not enter the hollow part from the first suction port, the drain and the second suction port are closed by the lower side flap and the upper side flap, and in the state that water enters the hollow part, the lower side flap is pressed outward, whereby the lower side flap and the upper side flap are rotated around the shaft, the drain is opened and the second suction port is opened.SELECTED DRAWING: Figure 3A

    【課題】停車時又は低速走行時にエンジンルーム内の高温空気がエンジン側へ流出することを抑制し、内部に水が流入した場合に、水がエンジン側へ流出することを抑制する車両用吸気ダクトを提供する。【解決手段】車両用吸気ダクト1は、外気を取り込む第一吸気口と、エンジンルーム内の空気を中空部内へ取り込む第二吸気口と、水を排出する排水口を備える。シャッター部は、排水口を開閉する下側フラップと、第二吸気口を開閉する上側フラップとを備え、下側フラップと上側フラップとの境界部が、水平に延びる軸まわりに回転可能に支持され、第一吸気口から中空部内へ水が入り込んでいない状態では、下側フラップ及び上側フラップによって排水口及び第二吸気口が閉鎖され、中空部内に水が入り込んだ状態では、下側フラップが外側へ押圧されることにより、下側フラップ及び上側フラップが軸まわりに回動し、排水口が開放されるとともに第二吸気口が開放される。【選択図】図3A


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    Title :

    AIR INTAKE DUCT FOR VEHICLE


    Additional title:

    車両用吸気ダクト


    Contributors:

    Publication date :

    2025-04-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF



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