Patent Application
20080149091
The present invention is related broadly to cooktops having infrared gas burners including barbeque grills and, more particularly to an infrared gas burner having an exhaust gas flue.
Infrared burners work by focusing the flame of a standard gas burner onto a ceramic tile having thousands of microscopic holes in it. This converts the heat of the flame into infrared, radiant energy. The heat energy is much greater and more persistent than a standard grill can produce. Infrared burners can reach cooking temperatures greater than 1800 degrees Fahrenheit.
Some infrared burners include burner bodies formed as a perimetorial structure or a loop, be it round, square or other closed loop shape. Such closed loop burners define an open central area in the middle of the burner. Often, unburned gas and combustion residue can collect in the atmosphere in the center of the burner. It would be advantageous to evacuate the central area as quickly and efficiently as possible in order to diminish the uncertain influence on the cooking process of collected combustion gasses and other combustion residue in the central area.
It is accordingly an object of the present invention to provide an infrared burner having an efficient apparatus for evacuating the waste gasses from the central area.
To that end, an infrared range burner having a plurality of gas passageways formed therein for delivering combustion gas from a central gas supply to individual burner jets includes a burner body formed as a closed loop defining an open central area, the burner body having a plurality of gas passageways formed therein; a burner top disposed on the burner body and including burner jets in communication with the gas passageways; a burner bottom having an exhaust opening formed in a central area thereof, the burner bottom being disposed on the burner body oppositely from the burner top, with the open central area in registry with the exhaust opening and extending between the burner top and the burner bottom; and a flue mounted to the burner bottom and projecting outwardly therefrom, the flue being in fluid communication with the exhaust opening for drawing exhaust gases from the open central area. The present invention also includes an infrared range burner wherein the flue has a generally circular cross section and an infrared range burner wherein the flue has a generally flat sided cross section.
Turning now to the drawings and, more particularly to
A central area 18 is defined by the central openings within the burner top 16 and burner bottom 17. The opening of the burner bottom 17 is an exhaust opening 20. Walls 22 are formed on the inside of the central area and are tapered from the larger central area opening to the smaller exhaust opening 20. The walls 22 of the central area 18 act like a nozzle and if a draft is drawn through the central area, aid in the evacuation of the unwanted gasses in the central area.
Turning again to
Turning now to
Accordingly, the walls 22 of the central area 18 are angled with respect to one another yet the evacuation of the central area remains substantially the same process as in the first embodiment.
Turning now to
By the above, the present invention provides an economical, mechanical structure for evacuating unwanted gasses and unburned matter from an open central area of an infrared burner.
It will therefore be readily understood by those persons skilled in the art that the present invention is susceptible of a broad utility and application. While the present invention is described in all currently foreseeable embodiments, there may be other, unforeseeable embodiments and adaptations of the present invention, as well as variations, modifications and equivalent arrangements, that do not depart from the substance or scope of the present invention. The foregoing disclosure is not intended or to be construed to limit the present invention or otherwise to exclude such other embodiments, adaptations, variations, modifications and equivalent arrangements, the present invention being limited only by the claims appended hereto and the equivalents thereof.
