Noise attenuating and air streamlining spiral

Details Noise attenuating and air streamlining spiral Noise attenuating and air streamlining spiral

1986-12-01

1988-11-22

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

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

415197, 181204, F04D 2966

Patent

active

047862319

ABSTRACT:
A fan assembly which has an air inlet that combines the function of absorbing fan noise and the function of streamlining air intake. A continuous strip of sound absorbing material is mounted on a perforated support and is wrapped in an overlapping manner which, when placed with the fan, dampens fan noises, as well as allows acceleration and uniformity of distribution of incoming airflow.

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