TWO PIECE MULTIPLE INSHOT-TYPE FUEL BURNER STRUCTURE

A multiple inshot-type gas burner structure is formed from a pair of facing, intersecured stamper sheet metal plates. A spaced plurality of parallel, rectangularly cross-sectioned burner bodies are defined by facing triangular indentation pairs in the plates and have, at front outlet end portions thereof, side indentations which serve to mix air and gaseous fuel received at rear end portions of the burner bodies, and to divert a portion of the fuel/air mixture into crossover channels intercommunicating front interior portions of the burner bodies. The crossover channels have central arcuate closed portions that cooperate with progressively sized standoff dimples extending between opposite wall portions of the channels to provide an even crossover flame pattern along the outlet slot section of each channel. At the outlet end of each burner are four flame retention tabs which are transverse to the flow axis of the burner body and serve to prevent induced secondary combustion air from causing undesirable main flame liftoff. Originally rectangular inlet end portions of the burner bodies are laterally inwardly deformed to define generally circular sections that receive and firmly hold hexagonal gas supply orifice fittings mounted on a gas supply manifold pipe. Immediately forward of these deformed circular sections a plurality of primary air inlet openings are formed through the burner body walls. Se presenta una estructura de quemador de gas del tipo de multiple chorro de entrada que está formada de un par de placas de hoja metálica interfijas por estampado y una enfrente de la otra. Una pluralidad de cuerpos de quemador de seccion transversal rectangular paralelos y distanciados entre sí, queda formada por pares de indentacion triangular en las placas, y tienen en la porcion extrema de la salida frontal, indentaciones laterales que sirven para mezclar el aire y el combustible gaseoso recibido en las porciones extremas traseras de los cuerpos quemadores, y para desviar una porcion de la mezcla/aire combustible a los canales de cámara de paso que intercomunican las porciones interiores de los cuerpos quemadores. Los canales de paso tienen porciones cerradas con arco central que cooperan con hoyuelos que progresivamente disminuyen de tamaño y se extienden entre paredes de pares opuestas de los canales para proveer un patron de llama de paso uniforme a lo largo de la seccion de escotadura de salida de cada canal. En el extremo de salida de cada quemador existen c