Low noise centrifugal blower

Details Low noise centrifugal blower Low noise centrifugal blower

1994-06-13

1996-01-16

Look, Edward K.

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

415204, F04D 2966

Patent

active

054842590

ABSTRACT:
The present invention provides a centrifugal blower wherein the noise at the cutoff has been substantially reduced by providing a vortex in the air flow near the cutoff to redirect the air flow. A fin projects downwardly into the space created by the exhaust outlet to redirect the air flow away from the cutoff and create a vortex to quiet the air flow.

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