Combustion – Porous – capillary – particulate or sievelike flame holder,... – Means supplying fuel for passage through the flame holding...
Patent
1984-03-23
1987-03-31
Scott, Samuel
Combustion
Porous, capillary, particulate or sievelike flame holder,...
Means supplying fuel for passage through the flame holding...
428375, F23D 1312
Patent
active
046540008
ABSTRACT:
Improved burner constructions for gas-fired infra-red generators having ceramic fiber matrix through the thickness of which gaseous combustion mixture is passed and as it emerges it is burned to heat emerging surface to incandescence. Burner body can be casting, with sheet metal addition to form a baffle and air-seal and to grip matrix edges. Combustion mixture pelnum can have movable partition assembly separating it from air-seals, to adjust portion of matrix at which incandescence is generated. Metal screen can be stretched in front of incandescent surface to assist with low-temperature operation. Thermal insulation on external portions of burner body can also be held in place with screening. Large size matrix can have central support fitted in joint between matrix segments, and secured to back of burner body. Air-seal can be provided by narrow curtain of air extending around internal faces of burner body. Annealing lehr is desirably provided with gas-fired infra-red irradiation, and can have heat losses reduced by diminishing amount of metal used as in a conveyor to move workpieces through. Burner matrix can be made water-repellant and its uniformity can be improved.
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patent: 3968297 (1976-07-01), Sauer
patent: 4035132 (1977-07-01), Smith
patent: 4301035 (1981-11-01), Risse
Price Carl D.
Scott Samuel
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