PROBLEM TO BE SOLVED: To provide centrifugal blowers (1, 1A, 1B) capable of feeding a sufficient amount of air even in a case where ventilation resistance of a ventilation passage continuing to a foot blowout port becomes high.SOLUTION: Centrifugal blowers (1, 1A, 1B) have a first scroll (18) configured to feed air out to a vent blowout port, and a second scroll (19) configured to feed air out to a foot blowout port. A spread angle of the second scroll (19) between an angular position that advances from a position of a second reference line segment (L02) connecting between a rotational axis line (Ax) and a tongue part (19T) of the second scroll (19) by 200 degrees and an angular position advancing by 300 degrees, is made smaller than a spread angle of the first scroll (18) between an angular position that advances from a position of a first reference line segment (L01) connecting between the rotational axis line (Ax) and a tongue part (18T) of the first scroll (18) by 200 degrees and an angular position advancing by 300 degrees.SELECTED DRAWING: Figure 1

    【課題】フット吹出口へ続く送風経路の通気抵抗が高くなっても、十分な風量で送風可能な遠心送風機(1,1A,1B)を提供することを可能とする。【解決手段】遠心送風機(1,1A,1B)は、空気をベント吹出口に送り出す第1スクロール(18)と、空気をフット吹出口に送り出す第2スクロール(19)と、を有する。回転軸線(Ax)と第2スクロール(19)の舌部(19T)とを結ぶ第2基準線分(L02)の位置から200度進んだ角度位置から300度進んだ角度位置までの間における第2スクロール(19)の拡がり角が、回転軸線(Ax)と第1スクロール(18)の舌部(18T)とを結ぶ第1基準線分(L01)の位置から200度進んだ角度位置から300度進んだ角度位置までの間における第1スクロール(18)の拡がり角よりも小さい。【選択図】図1


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    Title :

    CENTRIFUGAL BLOWER FOR VEHICULAR AIR CONDITIONER


    Additional title:

    車両用空調装置のための遠心送風機


    Contributors:

    Publication date :

    2018-10-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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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