Centrifugal air blower and air conditioner

Details Centrifugal air blower and air conditioner Centrifugal air blower and air conditioner

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 29/28 (2006.01)

Patent

CA 2750090

There is provided a centrifugal air blower that can reduce driving force (consumed driving force) when an air blower is rotated, and also increase an airflow amount of air to be blown out from the air blower. A centrifugal air blower having an impeller 1 comprising a main plate 3 and plural vanes 2, and a side plate having a suction port and a blow-out port is characterized in that when the height of the suction port is represented by H, the height of the blow-out port is represented by h, the diameter of the impeller is represented by D and the diameter of the suction port is represented by d, 0.5 < h/H < 0.8 and 0.78 < d/D < 0.84 are satisfied.

L'invention porte sur un dispositif de ventilateur centrifuge qui peut être actionné par une puissance d'entraînement (consommation d'énergie) réduite et qui peut évacuer un grand volume d'air. Un dispositif de ventilateur centrifuge est pourvu d'une roue à aubes (1) constituée d'une plaque principale (3) et de plaques d'aube (2), ainsi que d'une plaque latérale (4) ayant une ouverture d'aspiration et une ouverture d'évacuation. Si la hauteur de l'ouverture d'aspiration est H, si la hauteur de l'ouverture d'évacuation est h, si le diamètre de la roue à aubes est D et si le diamètre de l'ouverture d'aspiration est d, le dispositif de ventilateur centrifuge satisfait aux relations 0,5 < h/H < 0,8, et 0,78 < d/D < 0,84.

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