Recirculation device

Details Recirculation device Recirculation device

1981-08-19

1984-01-24

Wayner, William E.

Heating

Having condition responsive control

Of cooling, dilution, withdrawal, bypass or circulation of...

236 15C, 432222, F24H 100, F27D 1900

Patent

active

044273746

ABSTRACT:
A recirculation device for recirculating a selected volume of preheated gas exhausted from a heating chamber in a mixture with fresh air back to the heating chamber. The device comprises a first passageway having an entrance and a pair of exits; a second passageway having a pair of inlets and an outlet; and a third passageway connecting one exit and one inlet. The other exit communicates with a preheated gas exhaust, and the other intake communicates with a source of fresh air. A back pressure damper is secured adjacent the other exit. A manual control assembly is connected to the back pressure damper so that the volume of preheated gas flowing into the preheated gas exhaust may be selectively determined. A mixing damper is secured adjacent the other intake. An automatic temperature dependent control assembly is connected to the mixing damper so that the mixture of preheated gas and fresh air entering the heating chamber is dependent upon the temperature in the heating chamber.

REFERENCES:
patent: 1896910 (1933-02-01), Merkt
patent: 1926772 (1933-09-01), Hess
patent: 4011041 (1977-03-01), Taylor
patent: 4060380 (1977-11-01), Bolt

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