To provide a blower capable of reducing a mix rate of the inside air with respect to the outside air during an inside/outside air two layer mode.SOLUTION: An introduction duct 20 provided in an air introduction box 10 is provided so that, during the setting of an inside/outside air two layer mode, first air flows inside the introduction duct 20 and second air flows outside the introduction duct 20. A filter 50 is provided on the downstream side of the introduction duct 20 and on the upstream side of an impeller 40. A separation cylinder 60 is formed in a cylindrical shape, and provided inside the impeller 40. In the case where the first air is the inside air and the second air is the outside air, an inner wall of an air inlet part 61 of the separation cylinder 60 is provided outside of an inner wall of an air outlet part 21 of the introduction duct 20 across the whole periphery, when viewed from a rotary shaft Ax direction of the impeller 40. On the other hand, in the case where the first air is the outside air and the second air is the inside air, the inner wall of the air inlet part 61 of the separation cylinder 60 is provided inside of an inner wall of the air outlet part 21 of the introduction duct 20 across the whole periphery, when viewed from the rotary shaft Ax direction of the impeller 40.SELECTED DRAWING: Figure 1

    【課題】内外気二層モード時に外気に対する内気の混入率を低減することの可能な送風機を提供する。【解決手段】空気導入箱10内に設けられる導入ダクト20は、内外気二層モードの設定時に、第1空気が導入ダクト20の内側を流れ、第2空気が導入ダクト20の外側を流れるように設けられる。フィルタ50は、導入ダクト20の下流側で羽根車40の上流側に設けられる。分離筒60は、筒状に形成されて羽根車40の内側に設けられる。第1空気が内気、第2空気が外気である場合、分離筒60の空気入口部61の内壁は、羽根車40の回転軸Ax方向から視て、全周に亘り導入ダクト20の空気出口部21の内壁よりも外側に設けられる。一方、第1空気が外気、第2空気が内気である場合、分離筒60の空気入口部61の内壁は、羽根車40の回転軸Ax方向から視て、全周に亘り導入ダクト20の空気出口部21の内壁よりも内側に設けられる。【選択図】図1


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    Titel :

    BLOWER


    Weitere Titelangaben:

    送風機


    Beteiligte:
    KOSAKA SHO (Autor:in)

    Erscheinungsdatum :

    2021-06-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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