Gas convection oven and heat exchanger therefor

Details Gas convection oven and heat exchanger therefor Gas convection oven and heat exchanger therefor

1986-05-01

1987-03-10

Yeung, James C.

Stoves and furnaces

Stoves

Cooking

126 91A, 165125, 432176, 432199, F24C 1532

Patent

active

046483772

ABSTRACT:
A gas convection oven includes a heating chamber having a gas combustion chamber formed therein and a blower positioned within the combustion chamber for circulating air through the heating and combustion chambers. The blower defines a low pressure inlet centrally of the combustion chamber for receiving air from the heating chamber and forcing it through the combustion chamber back into the heating chamber around the outer edges of the combustion chamber. A gas burner extends into the combustion chamber and includes a distally-mounted diverter for dividing and directing flame and combustion products into two different directions. A bifurcated heat exchanger defines first and second tubular passages which are aligned with and encompass the blower and define inlets aligned with the two different directions for receiving the combustion products from the burner. The first and second passages terminate in a junction box which passes the products of combustion into the low pressure inlet of the blower such that air drawn from the heating chamber is mixed with the combustion products and then passed over the bifurcated heat exchanger before being recirculated to the heating chamber.

REFERENCES:
patent: 1874328 (1932-08-01), McCutcheon
patent: 2235559 (1941-03-01), Mayer
patent: 3384068 (1968-05-01), Perry et al.
patent: 3590803 (1971-07-01), Sauer
patent: 3605717 (1971-09-01), Sauer
patent: 3669090 (1972-06-01), Jung et al.
patent: 4395233 (1983-07-01), Smith
patent: 4484561 (1984-11-01), Baggott et al.

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