Centrifugal blower having a plurality of sub blades

Details Centrifugal blower having a plurality of sub blades Centrifugal blower having a plurality of sub blades

1998-01-15

2000-02-29

Look, Edward K.

Ventilation

Vehicle

Condensation preventer

415119, 415185, 415195, 4152082, B60S 154

Patent

active

060302860

ABSTRACT:
In a centrifugal blower in which the outer periphery of an intake opening is arranged outside of the inner edge of a main blade, a large number of sub blades are provided in the intake opening at a location corresponding to the main blade. The sub blades lead the secondary air flowing from an outside area of the intake opening to a rotating direction of a centrifugal multi blade fan. Thus, the secondary air flows from the sub blade to the main blade smoothly, thereby increasing a secondary air flow amount and reducing air flow noise.

REFERENCES:
patent: 5814908 (1998-09-01), Muszynsi

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