Centrifugal fan

Details Centrifugal fan Centrifugal fan

1979-05-09

1981-05-05

Wilhite, Billy J.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

406 97, F04D 2700

Patent

active

042655927

ABSTRACT:
The centrifugal fan comprises a casing having a cylindrical jacket with a tangentially directed outlet duct and lateral walls, one of the walls being formed with an axially directed inlet duct partially projecting into the casing, an impeller wheel supported for rotation in the casing opposite the opening of the inlet duct, and axially displaceable tubular partition coaxially surrounding the inlet duct and projecting into the casing toward the face of the impeller wheel to define therewith a variable gap which connects an adjustable diffusing antechamber resulting in the casing between the displaceable tubular partition and the inlet duct to a main diffusing chamber resulting between the displaceable tubular partition and the cylindrical jacket.

REFERENCES:
patent: 1053154 (1913-02-01), Campbell
patent: 1834959 (1931-12-01), May
patent: 1893710 (1933-01-01), Lykken

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