Combustion – Fuel disperser installed in furnace – Plural feed means extending to common wall opening of furnace
Patent
1983-10-03
1984-09-18
Green, Randall L.
Combustion
Fuel disperser installed in furnace
Plural feed means extending to common wall opening of furnace
431189, 431265, 431329, 431354, 431183, 239403, F23C 506, F23Q 300
Patent
active
044721366
ABSTRACT:
Four-stage flame retention head assembly for use in the air pipe of a fuel burner having a fuel nozzle mounted coaxially within the air pipe. This assembly comprises an outwardly diverging flame retention head mounted in the air pipe in front of the fuel nozzle. This head successively defines, starting from its smaller end, an air-and-fuel mixture chamber; a first inwardly open expansion chamber; a throttle section and an outwardly convex section defining a second expansion chamber. A primary air inlet annular plate is mounted transversely at the inlet end of the head and has a central opening circumscribed by a continuous annulus. The latter has a series of air inlet apertures and loovers over the apertures, the latter and the loovers causing swirling of the air as it enters into the mixing chamber. The first and second expansion chambers are provided with circumferentially spaced air apertures to pass air into the retention head to sustain combustion therein as well as to cool the head.
REFERENCES:
patent: 1698258 (1929-01-01), Cook
patent: 3477824 (1969-11-01), Reed
patent: 3664804 (1972-05-01), Flournoy et al.
patent: 3733169 (1973-05-01), Lefebvre
patent: 4082484 (1978-04-01), Lefebvre
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