Fan assemblies

Details Fan assemblies Fan assemblies

1974-11-26

1976-03-30

Raduazo, Henry F.

Rotary kinetic fluid motors or pumps

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

415174, 181 36R, F04D 2966

Patent

active

039471489

ABSTRACT:
The disclosure relates to a fan assembly including a duct in which an axial flow fan is mounted, there being a plurality of apertures formed in the duct wall around the fan and a layer of acoustic absorption material encircles the duct and projects through the apertures into the duct to have a minimum running clearance from the periphery of the fan.

REFERENCES:
patent: 2028985 (1936-01-01), Mahon
patent: 2225398 (1940-12-01), Hamblin
patent: 2252256 (1941-08-01), Harris
patent: 2749024 (1956-06-01), Wilfert
patent: 3068016 (1962-12-01), Dega
patent: 3321931 (1967-05-01), Lehmkuhl
patent: 3346174 (1967-10-01), Lievens et al.
patent: 3403843 (1968-10-01), Cox
patent: 3735593 (1973-05-01), Howell
patent: 3821999 (1974-07-01), Guess et al.
patent: 3890060 (1975-06-01), Lipstein

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