Internal recirculation device

Details Internal recirculation device Internal recirculation device

1980-09-26

1982-04-20

O'Connor, Daniel J.

Stoves and furnaces

Hot-air furnaces

Compressed air

126110C, 126116R, 165 16, F24H 302, F25B 2900

Patent

active

043253520

ABSTRACT:
A method for converting a direct fired gas heating apparatus from one having a constant volume discharge air flow characteristics to one having variable volume characteristics by the use of an internally recirculating volume discharge air flow increment.

REFERENCES:
patent: 1440867 (1923-01-01), Ellison
patent: 2109512 (1938-03-01), Stacey
patent: 2146071 (1939-02-01), Horvath
patent: 2551956 (1951-05-01), Lund
patent: 3405758 (1968-10-01), Walker
patent: 3618659 (1971-11-01), Rawal
patent: 3782448 (1974-01-01), Clark
patent: 4178770 (1979-12-01), Fox
patent: 4210278 (1980-07-01), Obler
patent: 4272966 (1981-06-01), Niemann et al.
patent: 4293027 (1981-10-01), Tepe

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