F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
F23D 14/52 (2006.01) F23D 14/48 (2006.01) F23D 14/58 (2006.01)
Patent
CA 2117833
A hot air Burner in which a nozzle assembly is com- prised of an inlet port housing (8) incorporating an internal plenum chamber (18) into which is introduced a flow of compressed air via an inlet port (4) in the inlet housing (8). The flow of compressed air is controlled by the width of an adjustable gap created be- tween a frusto-conical exterior surface (20) of the internal plenum chamber (18) and the internally chamfered wall (22) of a mixing tube (12). Turbulence in the compressed air flow is created as the air enters the mixing tube (12) and this swirling effect promotes efficient mixing of subsequently introduced combustible gases to the mixing tube (12) via an inlet port (6) in the inlet housing (8). The combustible mixture is ignited and the result- ant combustion contained within the confines of an outer burner tube (10). The flame front is contained within the burner tube (10) and extends approximately six inches into the length of the tube (10). The high temperature exhaust gases are carried to the exit opening of the burner tube (10) by the continuous flow of compressed air and thus avail- able, flame free, for application.
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