Blower case provided in centrifugal blower of the present invention has side wall, suction port, a discharge port, and flow channel. In flow channel, when impeller is rotated by rotation action transmitted from motor, air sucked from suction port and passed through an inner peripheral side end and outer peripheral side end is guided to the discharge port along side wall. A shape of a cross section of flow channel including rotational axis is wider, toward an opposite side where the suction port is located relative to a side where suction port is located in a direction along axial center direction, in a second cross section located near the discharge port than in a first cross section located far from the discharge port in a direction in which impeller rotates.
Centrifugal blower and automobile provided with same
2020-04-28
Patent
Electronic Resource
English
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 |