[Problem] To improve a strength and productivity of a filter having a filtration member in a pleated shape.[Solution] A filter (40) includes a filtration member (41) having partitioned surfaces (43) that are partitioned by mountain-fold pleats (42) and valley-fold pleats (42), and end plates (48, 49) fixed to two end portions of the filtration member (41) and configured to maintain the filtration member (41) in a pleated shape. The filtration member (41) includes a plurality of filtration portions (45a, 45b, and 45c) and intermediate portions (46a, 46b) each provided between the adjacent filtration portions. In the filtration portions (45), an angle formed by the adjacent partitioned surfaces (43, 43) is greater than 0°, and in the intermediate portions (46a, 46b), an angle formed by the adjacent partitioned surfaces (43, 43) is 0°.
FILTER AND CENTRIFUGAL BLOWER
2023-12-14
Patent
Electronic Resource
English
IPC: | B01D SEPARATION , Trennen / 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 |