Combustion – Separately supplied or controlled – physically related flame... – Coaxial
Patent
1995-05-12
1997-12-23
Price, Carl D.
Combustion
Separately supplied or controlled, physically related flame...
Coaxial
431285, 431 8, 431182, 431187, 431188, F23D 1700
Patent
active
057001430
ABSTRACT:
A combination burner which uses primary and secondary fuel injection and improves liquid propane combustion. The burner supplies primary air, while secondary air is swirled to shape and mix the flame when the burner is firing "on oil". When the burner is firing "on gas", primary air enters the burner through an annulus at the atomizing air pipe or conduit so as to have the primary gas enter that pipe; secondary gas is injected radially into the air stream at a downstream location relative to an atomizing nozzle. In using liquid propane (butane) to fire the burner, two stage fuel injection is used, with a stream of fuel being injected upstream and toward the burner centerline and another stream of fuel being injected downstream and outwardly away from the burner centerline.
REFERENCES:
patent: 2979899 (1961-04-01), Salmon et al.
patent: 4047877 (1977-09-01), Flanagan
patent: 4701124 (1987-10-01), Maghon et al.
patent: 5251447 (1993-10-01), Joshi et al.
patent: 5259755 (1993-11-01), Irwin et al.
patent: 5451160 (1995-09-01), Becker
patent: 5511970 (1996-04-01), Irwun et al.
Baum Raymond F.
Irwin Bruce C.
Moore Edward E.
Hauck Manufacturing Company
Price Carl D.
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