Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent
1992-05-11
1993-05-04
Favors, Edward G.
Stoves and furnaces
Liquid heater
Fluid fuel burner for other than top-accessible vessel
122 17, 122 33, F24H 120
Patent
active
052072118
ABSTRACT:
The top storage tank end wall of a down-fired water heater has a first circumferentially spaced series of circular openings formed therethrough and centered about the tank axis, and a second circumferentially spaced series of circular openings centered about the tank axis and spaced radially outwardly of the first series of openings. Vertically disposed within the tank is a circumferentially spaced series of hollow U-tube immersion heating members each having a first open upper end secured to one of the first series of openings, and a second open upper end secured to one of the second series of openings. Shot-type fuel burners extend downwardly into the second open upper tube ends and are supplied with gaseous fuel via a manifold ring positioned atop the water heater. Hot combustion gases from the burners are drawn through the U-tubes by a draft inducer fan having an inlet connected to the first open upper ends of the tubes. In an alternate embodiment of the water heater, air-driven power fuel burners are connected to the first open upper tube ends and are supplied with driving air through a manifold structure connected to the outlet of a supply air blower. Combustion gases forced out the second tube ends are collected in an exhaust manifold structure for venting to atmosphere.
REFERENCES:
patent: 2495673 (1950-01-01), Erwin
patent: 2543835 (1951-03-01), Dewey
patent: 4329943 (1982-05-01), Schworer
patent: 4380215 (1983-04-01), Mendelson
patent: 4445464 (1984-05-01), Gerstmann et al.
patent: 4492185 (1985-01-01), Kandall et al.
patent: 4651714 (1987-03-01), Granberg
patent: 4685425 (1987-08-01), Eising
patent: 4699122 (1987-10-01), Jannemann et al.
patent: 4938204 (1990-07-01), Adams
patent: 5069169 (1991-12-01), Maruko
Hanning David M.
Stretch Gordon W.
Favors Edward G.
Rheem Manufacturing Company
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