To provide a centrifugal blower that has high handleability and reliability, is compact and flat, can secure air volume and static pressure, and can reduce noise.SOLUTION: Out of annular air passages 8 formed by combining a first case 4a and a second case 4b and circulating them around the outside of a case body 4 in a radial direction, at the bottom of a second air passage 4e, a plurality of exhaust holes 4f for exhausting compressed air to the outside of the case body are formed at predetermined intervals in a circumferential direction, and at a position facing each exhaust hole 4f, a diffuser 4r that inclines diagonally downward with respect to a rotation direction of a centrifugal fan 2 is provided.SELECTED DRAWING: Figure 2
【課題】取扱性や信頼性が高くしかも小型扁平で、風量及び静圧を確保しかつ静音化を図ることができる遠心送風機を提供する。【解決手段】第一ケース4aと第二ケース4bを組み合わせてケース体4の径方向外側に周回して形成される環状送風路8のうち第二送風路4eの底部には、圧縮空気をケース体外へ排気する複数の排気孔4fが周方向に所定間隔で穿設され、各排気孔4fに臨む位置に遠心ファン2の回転方向に対して斜め下方に傾斜するディフューザー4rが設けられている。【選択図】図2
CENTRIFUGAL BLOWER
遠心送風機
2021-08-30
Patent
Electronic Resource
Japanese
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 |