Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Patent
1979-04-18
1982-01-05
Dority, Jr., Carroll B.
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
431181, 2394245, 239426, 239431, F23C 508
Patent
active
043091652
ABSTRACT:
In accordance with the teachings of the invention, the combustion system includes a combustion chamber, hearth, burners, and an air/fuel control system. The control system controls a pressurized air supply, a regulated gas supply, and means for regulating the gas supply as a function of the air pressure. The burner includes an air manifold within which is housed an air control orifice telescoped in a gas manifold and a diffuser inserted within the air control orifice for mixing the air and gas and causing turbulence of the air/gas mixture. The diffuser protrudes through an aperture in the air manifold for communication with a juxtaposed combustion chamber and hearth having a flue gas outlet. Regulated air and gas are supplied to the air manifold and gas manifold respectively and are preheated. The pessurized preheated air passes through a throat and nozzle created by the diffuser and air control orifice creating a low pressure area at ports communicating with the gas manifold. The preheated gas passes from the high pressure area to a lower pressure area through the ports and into the throat. There the gas mixes with the air and passes through the nozzle by turbulent flow where it is ignited. The combustion air is sufficiently pressurized to create a flue gas velocity sufficient to cause a back pressure within the combustion chamber. The combustion chamber may have a very small volume and several nozzles may be housed in a common air manifold. The invention is simple, fuel efficient and reduces heat treat time.
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Bulletins (44.22 11/74), (44.42 11/73), (46.82 10/75), (10.01 7/61), (72.18 3/72), (10.01, 10.02, 10.69, 10.12 6/74), (18.07 8/73), (70.52 10/75), (30.65, 5/75) by North American Mfg. Co., 4455 E. 71 St. Cleveland, OH 44105.
Bulletins (H-44-1 5/75) and (M-400 3/74) by Eclipse Combustion Div. of Eclipse Inc. Rockford, Il 61101.
Conley Ned L.
Dority Jr. Carroll B.
Robinson Murray
Rose David Alan
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