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This invention relates to a barbecue grill, and in particular to a high pressure gas fired barbecue grill having perforated ceramic heating elements which emit infrared radiation. A pair of steel rods are suspended in a cast aluminum housing, and a pair of plenum chambers are suspended therebetween.

This invention relates to a barbecue grill, and in particular to a high pressure gas fired barbecue grill having perforated ceramic heating elements which emit infrared radiation. A pair of steel rods are suspended in a cast aluminum housing, and a pair of plenum chambers are suspended therebetween. The upper surfaces of each plenum chamber comprises a pair of perforated rectangular ceramic blocks separated by an imperforate metal plate. The bottom of the housing is open, and has a tray carried proximate the opening for food particles.

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In a gas barbecue grill comprising: (a) a container having upstanding sidewalls forming a cavity having an upper opening, (b) a cover affixed to said container, movable to a closed position to substantially cover said upper opening and movable to an open position, (c) a grid suspended from said upst

In a gas barbecue grill comprising: (a) a container having upstanding sidewalls forming a cavity having an upper opening, (b) a cover affixed to said container, movable to a closed position to substantially cover said upper opening and movable to an open position, (c) a grid suspended from said upstanding sidewalls proximate said upper opening, having a generally horizontal portion adapted to support food, (d) a heat generating system comprising: (i) a plenum chamber supported within said cavity below said grid, comprising walls forming a chamber having a top opening and a gas inlet port, the improvement comprising: (ii) a burner plate supported by said plenum chamber, substantially covering said top opening and comprising at least two spaced tiles of low heat conductivity each having a burner surface and a plurality of holes therethrough adapted to allow the exit of gas from said plenum chamber to said burner surface, said tiles being separated by a spacer which is impervious to the passage of gas therethrough and of high heat conductivity to present a surface which in use of the grill reaches a temperature sufficient to vaporize foods dropping thereon and insufficient to cause spontaneous ignition within the plenum, (iii) means on said burner plate to propagate gas flame between said tiles across said spacer, (iv) a gas inlet duct having a longitudinal axis, having a proximate portion affixed to said plenum chamber and adapted to introduce gas into said plenum chamber through said gas inlet port, having a distal end exterior to said plenum chamber, and having an air inlet opening exterior to said plenum chamber between said proximate end and said distal end, (v) a gas jet affixed to said distal end of said gas inlet duct, having a gas discharge orifice generally on said axis, and (e) means for connecting said gas jets to a source of combustible gas, whereby gas can be introduced to said gas jets and discharged through said orifices into said gas inlet ducts, mixed with air drawn into said ducts through said air inlet openings to create a gas-air mixture, said mixture being introduced into said plenum chambers and further mixed to create an intimate gas-air mixture, said intimate mixture being forced through said holes in the spaced tiles of said burner plates and burned proximate said burner surfaces to create heat and infra-red radiation suitable for cooking food disposed on said grid.