Efficient fuel burning stove or furnace with thermal energy slow

Details Efficient fuel burning stove or furnace with thermal energy slow Efficient fuel burning stove or furnace with thermal energy slow

1979-06-25

1981-09-29

Yuen, Henry C.

Stoves and furnaces

Stoves

Heating

126 99P, 126112, 126123, 110214, 110326, F24C 1528

Patent

active

042916690

ABSTRACT:
A stove or furnace for combusting and extracting heat from wood and wood-type fuels includes a firebox arrangement for primary combustion and a flue structure coupled to the firebox which includes a plurality of flue gas decelerating chambers for slowing propagation of flue gas, heat exchange to the environment, and further combustion of fuel constituents in the flue gas. The chambers are coupled in series through restricting and accelerating passageways for maintaining draft between chambers, finally leading to an outlet chimney. The chambers are formed with baffles for greater turbulant mixing, combustion, and heat exchange. Furthermore, a tubular conduit may be provided extending from the firebox through the flue structure chambers. The tubular conduit is formed with orifices for injecting burning flue gas from the firebox primary combustion directly into the series coupled chambers to enhance secondary burning. A new method for combustion of wood and carbonaceous fuels and extracting heat is also described.

REFERENCES:
patent: 32427 (1861-05-01), Kohler
patent: 665658 (1901-01-01), Jankus
patent: 1464210 (1923-08-01), Marx
patent: 2364698 (1944-12-01), Davin
patent: 2369995 (1945-02-01), Arnold
patent: 3043246 (1962-07-01), Hebert
patent: 4015932 (1977-04-01), Zurawski
patent: 4123979 (1978-11-01), Tesch

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