Combustion – Flame holder having protective flame enclosing or flame... – Tubular member delineates flame
Patent
1977-02-18
1978-10-17
Yuen, Henry C.
Combustion
Flame holder having protective flame enclosing or flame...
Tubular member delineates flame
431173, F23D 1502
Patent
active
041206401
ABSTRACT:
Disclosed is a burner for liquid fuels which includes a combustion tube having an inner surface defining a combustion chamber, an end bell which mounts a nozzle for introducing the liquid fuel into the combustion chamber in the form of a fine spray, and an auxiliary air introduction means, also mounted to the end bell, which produces an auxiliary vortex flow of air around and concentric with the nozzle so as to entrain the fine spray of liquid fuel and form a fuel-air mixture. Means are provided for igniting the fuel-air mixture, and a main air introduction means is provided for producing a main vortex flow of air which serves to separate the fuel-air mixture from the inner surface of the combustion tube and to provide additional air for combustion of the fuel-air mixture. A collar means, preferably of a refractory material, is provided concentric with the nozzle. The collar means controls combustion of the fuel-air mixture by controlling the manner in which the fuel-air mixture is transported into the combustion chamber and the rate at which the fuel-air mixture mixes with the main vortex flow of air.
A baffle may be provided within the combustion chamber to further assist in effecting complete and clean combustion of the fuel-air mixture. In certain embodiments of the invention, the baffle takes the form of a right circular cylinder of a refractory material, the cylinder having an interior aperture in the shape of a cloverleaf.
REFERENCES:
patent: 1880011 (1932-09-01), Boynton
patent: 3327762 (1967-06-01), Saha
patent: 3339613 (1967-09-01), Saha
patent: 3684424 (1972-08-01), Zink
patent: 3857672 (1974-12-01), Reed et al.
patent: 3859786 (1975-01-01), Azelborn et al.
patent: 3951584 (1976-04-01), Thekdi
patent: 3975141 (1976-08-01), Sweet
patent: 4021188 (1977-05-01), Yamagishi et al.
patent: 4054028 (1977-10-01), Kawaguchi
Infern-O-Therm Corporation
Yuen Henry C.
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