Heating – Work chamber having heating means – Work chamber having gaseous material supply or removal...
Patent
1980-11-20
1982-03-09
Camby, John J.
Heating
Work chamber having heating means
Work chamber having gaseous material supply or removal...
415182, 415206, 415207, 432203, F27B 516
Patent
active
043186939
ABSTRACT:
The axial fluid flow fan comprises a shaft, an impeller mounted on said shaft comprising a tankhead and a plurality of blades, a drive means attached to the shaft for rotating the impeller and a deflector having a bugle bell shape defined by a small diameter, a large diameter and a radius of curvature joining the diameters. The deflector is positioned downstream of the fan and slightly spaced from the impeller to separate the fluid coming off the impeller into at least two annular flow areas. The fan is part of a plug unit for a heat treating furnace in which the deflector is positioned about a frustoconical shaped shield which protects the shaft. The flow area downstream of the impeller is divided into equal areas. An extension plate in the furnace cooperates with the deflector to maintain the split areas of flow.
REFERENCES:
patent: 1940948 (1933-12-01), Harsch
patent: 2039429 (1936-05-01), Lydon
patent: 2169232 (1939-08-01), Flanders
patent: 2538739 (1951-01-01), Troller
patent: 3446428 (1969-05-01), White
patent: 4219325 (1980-08-01), Gutzwiller
Camby John J.
Robinson Industries, Inc.
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