Ventilator system with adjustable damper fan

Details Ventilator system with adjustable damper fan Ventilator system with adjustable damper fan

1976-09-07

1979-01-23

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

415157, 415210, 415217, 137637, 74105, F03D 700, F04D 2946, F01B 2510, F01D 1700

Patent

active

041358503

ABSTRACT:
A fan assembly for a ventilator system. The assembly comprises a fan housing a inlet end and an outlet end. One or more blower wheels are secured for rotation in the fan housing to direct air from the inlet end to the outlet end. Each of the blower wheels has a plurality of inclined peripheral fan blades. Means is provided to support and impart a rotational drive to the blower wheels. An adjustable cylindrical damper is movably supported in closely spaced relationship to the periphery of the blower wheels to vary the quantity of fluid directed to the outlet end of the fan housing.

REFERENCES:
patent: 1604328 (1926-10-01), Walker
patent: 1725344 (1929-08-01), Dennis
patent: 2075334 (1937-03-01), Braden
patent: 2452274 (1948-10-01), Walters
patent: 3625629 (1971-12-01), Morrison
patent: 3784318 (1974-01-01), Davis

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