Recirculating vortex burner

Details Recirculating vortex burner Recirculating vortex burner

1975-04-10

1977-03-29

Dority, Jr., Carroll B.

Combustion

Flame holder having protective flame enclosing or flame...

Tubular member delineates flame

431182, 431115, 239406, F23D 1502

Patent

active

040146391

ABSTRACT:
A recirculating vortex burner wherein liquid fuel is vaporized in suspension by recirculating hot products of combustion and is thoroughly mixed with air in order that substantially carbon-free combustion occurs. The burner employs a combustion chamber into which air is supplied at one end by a plurality of fixed orifices that provide air jets for producing a spiraled swirling flow pattern in the chamber. Such flow pattern establishes a stable vortex with a relatively low pressure region in the chamber central portion and results in substantial recirculation of the products of combustion. The air jets intersect fuel sprayed into the chamber and entrain such fuel together with the recirculating products of combustion so that air, fuel and products of combustion are thoroughly mixed and the fuel is substantially gasified prior to combustion.

REFERENCES:
patent: 1101723 (1914-06-01), Bailey et al.
patent: 1230725 (1917-06-01), Kraus
patent: 2765842 (1956-10-01), Lake
patent: 2879836 (1959-03-01), Dumas
patent: 3365136 (1968-01-01), Hoffman
patent: 3748087 (1973-07-01), Shular
Conference Paper CP65-1, 1965 API Research Conference on Distillate Fuel Combustion, June 1-3, 1965, Chicago, Illinois, Recirculation in a Vortex-Stabilized Oil Flame by R. E. Schindler and W. E. Ranz, Univ. of Minnesota, Minneapolis, Minnesota.

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