Patent ID: 6095794
Filing Date: 2000-08-01
Classification: F23D,F24B,F24C

Abstract:
A sheet metal pan burner comprising:a folded sheet metal body having an internal plenum defined therewithin;said body having an inlet for receiving gases from a source of combustion gases, said inlet being in fluid communication with said plenum;said body having a metal sheet surface portion, said metal sheet surface portion having a planar surface and a plurality of reinforcements formed in the midst of said sheet metal surface portion, said reinforcements each having an outlet defined therein whence the combustion gases can exit said plenum to be burned in a flame thereabove, said outlet having a characteristic length and a characteristic width, said length being greater than said width, the ratio of said length to said width lying in the range of 2 to 200;said outlet having a periphery, said periphery being at least partially stiffened by said reinforcement;said sheet metal surface portion having a sheet metal thickness;said reinforcements including protrusions extending outwardly of said planar sheet metal surface portion, relative to said plenum, a distance that is (a) in the range of 0.7 to 20 times said sheet metal wall thickness, and (b) in the range of 0.5 to 50 times said width of said outlet; andsaid burner being operable to support flames above said outlet at a port loading in the range of 7,000 to 60,000 BTU/hr per square inch.