Stoves and furnaces – Hot-air furnaces – Compressed air
Patent
1989-08-21
1990-05-15
Dority, Carroll B.
Stoves and furnaces
Hot-air furnaces
Compressed air
126116R, F24H 302
Patent
active
049248480
ABSTRACT:
A furnace utilizing, in the upper portion of its cabinet, a blower acting downward through a separator opening to circulate room air past a combustion chamber whose gases flow upward through a sideward-positioned board radiator member which reaches up to the flue. A substantial increase in efficiency results from drawing the combustion gases out of the combustion chamber at the side opposite to the lower end of the broad radiator member, and interposing therebetween, directly beneath the separator opening, a plurality of tubes which serve as an intermediate heat exchanger. A still greater increase in efficiency is achieved by utilizing, instead, a finned tube heat exchanger across and beneath said separator opening; its heat transfer may be so great as to result in condensation of water vapor in the combustion gas. To purge this, a motorized inducer-blower is used in the inlet air system, driving the condensate through the finned tube heat exchanger to an appropriate drain.
REFERENCES:
patent: 2923287 (1960-02-01), Murphy
patent: 3171400 (1965-03-01), Heiman
patent: 3223078 (1965-12-01), Miller et al.
patent: 3601116 (1972-08-01), Davis
patent: 4164210 (1979-08-01), Hollowell
patent: 4256082 (1981-03-01), Scholten
patent: 4409955 (1983-10-01), Christian
patent: 4478206 (1984-10-01), Ahn
patent: 4515145 (1985-05-01), Tallman
patent: 4621686 (1986-11-01), Ahn
Dority Carroll B.
Gross Jerome A.
Nordyne, Inc.
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