Patent ID: 6461147
Filing Date: 2002-10-08
Classification: F23D

Abstract:
A gas burner comprising:a tubular shaped housing having a proximal end and a distal end, and outer and inner walls defining an outer and inner diameter, the housing tapering inwardly to an outlet at the distal end to form a truncated cone; a gas supply tube of defined diameter disposed longitudinally centrally within the housing and extending from the proximal end to a point adjacent the distal end in a combustion zone and terminating in a closed end wall, the supply tube and the housing defining therebetween an annular space for supply of air to the combustion zone at a pressure slightly above atmospheric; a vortex generator disposed upstream of the distal end of the housing comprising a plurality of baffle flights extending longitudinally within the housing a radially from the gas supply tube to the inner wall of the housing, thereby supporting the gas supply tube; the gas supply tube defining a plurality of radially arranged openings therein disposed between the vortex generator and the closed end wall, said openings being disposed at a distance from the end wall which is one to four times the diameter of the tube, wherein the baffle flights have an aerodynamically curved shape to produce a helical movement to air which passes therethrough and which mixes with gas exiting the openings in the gas supply tube.