Fan arrangement

Details Fan arrangement Fan arrangement

1975-11-11

1977-05-24

Raduazo, Henry F.

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

To opposite face of blade

415119, F04D 500, F04D 2966

Patent

active

040252230

ABSTRACT:
A fan arrangement has an inlet bounded by an edge portion. A rotor has impeller blades which respectively sweep past the inlet. The edge portion forms an angle with each of the impeller blades so that noise generated by the blades during their rotation is substantially reduced. The edge portion may have any arbitrary shaped outline, such as linear, annular or curvilinear.

REFERENCES:
patent: 353994 (1886-12-01), Walker
patent: 1291037 (1919-01-01), Lole
patent: 1350927 (1920-08-01), Gomborow
patent: 1350941 (1920-08-01), Rice
patent: 3232522 (1966-02-01), Laing
patent: 3469773 (1969-09-01), Pool et al.

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