F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
158/139, 158/40
F23D 14/46 (2006.01) F23D 11/40 (2006.01) F23D 14/36 (2006.01) F23M 9/10 (2006.01)
Patent
CA 1201649
FLAME RETENTION HEAD ASSEMBLY FOR FUEL BURNERS ABSTRACT OF THE DISCLOSURE: A flame retention head assembly for use in a fuel burner having a fuel nozzle mounted coaxially within an air pipe. This assembly comprises a continuously contoured, outwardly diverging flame retention head mounted concentri- cally within the air pipe in front of the fuel nozzle. This head successively defines, starting from its inlet end: an air-and-fuel mixture chamber; a first expansion chamber; a throttle and a second expansion chamber. A spinner plate is mounted transversely across the inlet end of the head. This plate comprises a central ring provided with a central hole having a diameter substantially identical to the one of the fuel nozzle, and a plurality of blades regularly distributed around the ring to cause air to enter and swirl into the mixture chamber. A round-shaped deflector is also mounted concentri- cally transversally within the retention head, to cause the air and fuel entering the head through its inlet end to stay longer within the first or second expansion chamber .The second expansion chamber is provided with circumferentially spaced air apertures to allow air to pass into the retention head to sustain combustion therein.
477754
Loudenco Ltd.
Robic Robic & Associes/associates
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