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A burner includes a cylindrical tube that terminates in a burner discharge end. An annular disk, affixed to the discharge end, defines a hole. An oxidizer intake delivers oxidizer into the tube. A fuel nozzle delivers fuel into the tube. A cylindrical slotted member has an interrupted outer surface

A burner includes a cylindrical tube that terminates in a burner discharge end. An annular disk, affixed to the discharge end, defines a hole. An oxidizer intake delivers oxidizer into the tube. A fuel nozzle delivers fuel into the tube. A cylindrical slotted member has an interrupted outer surface and is disposed within a portion of the tube. The slotted member is affixed to the annular disk and defines an interior void that opens to the hole. The tube and the slotted member define an annular passage therebetween. Elongated slots pass through the outer surface of the slotted member, each directed along a different non-diametrical chord of the slotted member. The elongated slots direct a gaseous stream into the interior void so as to impart both an inwardly-directed radial velocity component and a tangential velocity component to the gaseous stream.

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1. A burner for burning a fuel and an oxidizer in a gaseous stream, comprising: (a) a tube, having an inner dimension, configured to allow passage therethrough of the gaseous stream, a selected end of the tube terminating in a burner discharge end;(b) a disk affixed to the burner discharge end of th

1. A burner for burning a fuel and an oxidizer in a gaseous stream, comprising: (a) a tube, having an inner dimension, configured to allow passage therethrough of the gaseous stream, a selected end of the tube terminating in a burner discharge end;(b) a disk affixed to the burner discharge end of the tube, the disk defining a hole therethrough;(c) an oxidizer intake configured to deliver the oxidizer into the tube;(d) a fuel nozzle configured to deliver the fuel into the tube; and(e) a slotted member, having an interrupted outer surface having an outer dimension and a length, the interrupted outer surface spaced apart from the fuel nozzle, the slotted member disposed within a portion of the tube and affixed to the disk, the slotted member terminating in a back wall, the interrupted outer surface and the back wall defining an interior void therein that opens to the hole defined by the disk, the outer dimension being less than the inner dimension of the tube thereby defining a passage therebetween, a plurality of elongated slots defined through the outer surface of the slotted member along at least a portion of the length of the slotted member, each slot directed along a different non-diametrical chord of the slotted member and fluidly coupling the interior void to the passage so that the plurality of elongated slots direct the gaseous stream from the tube into the interior void of the slotted member so as to impart both an inwardly-directed radial velocity component and a tangential velocity component to the gaseous stream, the back wall being impervious to the gaseous stream so that all of the gaseous stream must enter the void only through the plurality of slots and exit the void through the hole in the disk, wherein the fuel nozzle comprises a fuel pipe in fluid communication with a fuel supply, the fuel pipe including an end portion defining at least one orifice configured to distribute the fuel into the oxidizer,wherein the end portion is disposed outside of the slotted member and inside the tube so that fuel and the oxidizer premix in the gaseous stream prior to the gaseous stream entering the slotted member. 2. The burner of claim 1, wherein the fuel nozzle is configured to be adjustably moved axially with respect to the cylindrical slotted member. 3. The burner of claim 1, wherein the fuel nozzle further comprises a mechanism that injects fuel into the tube outside of the slotted member so that a portion of the fuel enters the gaseous stream outside of the slotted member and so that another portion of the fuel enters the gaseous stream inside of the slotted member. 4. The burner of claim 1, wherein the oxidizer comprises air. 5. The burner of claim 1, wherein the fuel comprises a burnable gas. 6. The burner of claim 1, wherein the tube is substantially cylindrical and wherein the slotted member is substantially cylindrical and is coaxial with the tube. 7. A burner for burning a mixture of a flammable gas and an air stream, comprising: (a) a cylindrical tube, having an inner diameter, configured to allow passage therethrough of an air stream, the tube terminating in a burner end;(b) an annular disk defining a hole therethrough affixed to the burner end of the tube;(c) an air intake configured to deliver the air stream into the cylindrical tube;(d) a fuel pipe in fluid communication with a fuel supply, the fuel pipe including an end portion defining at least one orifice configured to distribute the flammable gas into the air stream, thereby generating a gaseous stream; and(e) a slotted member, having an interrupted outer surface and a length, the interrupted outer surface spaced apart from the fuel nozzle, the slotted member disposed within a portion of the cylindrical tube and affixed to the annular disk, the slotted member terminating in a back wall, the interrupted outer surface and the back wall defining an interior void therein that opens to the hole defined by the annular disk, the slotted member including an outer surface having an outer diameter that is less than the inner diameter of the cylindrical tube thereby defining an annular passage therebetween, a plurality of elongated slots defined through the outer surface of the slotted member along at least a portion of the length of the slotted member, each slot directed along a different non-diametrical chord of the slotted member and fluidly coupling the interior void to the annular passage so that the plurality of elongated slots direct the gaseous stream from the cylindrical tube into the interior void of the slotted member so as to impart both an inwardly-directed radial velocity component and a tangential velocity component on the gaseous stream, the back wall being impervious to the gaseous stream so that all of the gaseous stream enters the void through the plurality of slots and exit the void through the hole in the disk, wherein the end portion of the fuel pipe is disposed inside of the interior void defined by slotted member and inside the cylindrical tube so that flammable gas and the air mix inside the slotted member,wherein the fuel nozzle further comprises a mechanism that injects a portion of the flammable gas into the into the cylindrical tube outside of the slotted member so that the portion of the flammable gas enters the air stream outside of the slotted member and so that another portion of the flammable gas enters the air stream inside of the slotted member. 8. A method of burning a mixture of a fuel and an oxidizer mixed in a gaseous stream, comprising the steps of: (a) directing at least the oxidizer along a first axis;(b) entraining the fuel in the oxidizer thereby generating the mixture of the fuel and the oxidizer;(c) diverting the mixture of the fuel and the oxidizer so as to cause substantially all of the mixture of the fuel and the oxidizer to have an inwardly-directed velocity component and a tangentially-directed velocity component corresponding to a plurality of tangents of a circle that is transverse to the first axis, wherein the adding step comprises the step of causing the fuel and the oxidizer to premix by dispersing the fuel into a stream of the oxidizer prior to the diverting step; and(d) igniting the mixture of the fuel and the oxidizer. 9. The method of claim 8, further comprising the steps of: (a) premixing a portion of the fuel with the oxidizer by dispersing a first portion of the fuel into a stream of the oxidizer prior to the diverting step; and(b) dispersing a second portion of the fuel into a stream of the oxidizer after the diverting step. 10. The method of claim 8, wherein the diverting step comprises the step of forcing the gaseous stream through a plurality of elongated slots into a void defined by a slotted member, wherein the slotted member has an outer surface and a length disposed within a portion of a tube and the outer surface terminating in a back wall so as to define an interior void therein that opens to the hole defined by an annular disk affixed to an end of the tube, the slotted member including an outer surface having an outer dimension that is less than inner dimension of the tube thereby defining an annular passage therebetween, wherein the plurality of elongated slots are defined through the outer surface of the slotted member along the length of the slotted member, each slot directed along a different non-diametrical chord of the cylindrical slotted member and fluidly coupling the interior void to the annular passage so that the plurality of elongated slots direct the gaseous stream from the tube into the interior void of the slotted member so as to impart both an inwardly-directed radial velocity component and a tangential velocity component on the gaseous stream, the back wall being impervious to the gaseous stream so that all of the gaseous stream must enter the void through the plurality of slots and exit the void through the hole in the disk. 11. The method of claim 8, wherein the oxidizer comprises air and wherein the fuel comprises a flammable gas. 12. A burner for burning a fuel and an oxidizer in a gaseous stream, comprising: (a) a tube, having an inner dimension, configured to allow passage therethrough of the gaseous stream, a selected end of the tube terminating in a burner discharge end;(b) a disk affixed to the burner discharge end of the tube, the disk defining a hole therethrough;(c) an oxidizer intake configured to deliver the oxidizer into the tube;(d) a slotted member, having an interrupted outer surface having an outer dimension and a length, the interrupted outer surface spaced apart from the fuel nozzle, the slotted member disposed within a portion of the tube and affixed to the disk, the slotted member terminating in a back wall, the interrupted outer surface and the back wall defining an interior void therein that opens to the hole defined by the disk, the outer dimension being less than the inner dimension of the tube thereby defining a passage therebetween, a plurality of elongated slots defined through the outer surface of the slotted member along at least a portion of the length of the slotted member, each slot directed along a different non-diametrical chord of the slotted member and fluidly coupling the interior void to the passage so that the plurality of elongated slots direct the oxidizer from the tube into the interior void of the slotted member so as to impart both an inwardly-directed radial velocity component and a tangential velocity component to the gaseous stream, the back wall being impervious to the oxidizer so that all of the oxidizer must enter the void only through the plurality of slots and exit the void through the hole in the disk(e) a fuel nozzle configured to deliver the fuel into the tube, the fuel nozzle including a fuel pipe in fluid communication with a fuel supply, the fuel pipe including an end portion defining at least one orifice configured to distribute the fuel radially through the orifice into the oxidizer, the end portion disposed inside of the interior void defined by the slotted member and inside the tube so that fuel and the oxidizer mix in the gaseous stream inside the slotted member. 13. The burner of claim 12, further comprising a cylindrical sleeve, concentric with and disposed about the tube. 14. The burner of claim 12, wherein the oxidizer comprises air. 15. The burner of claim 12, wherein the fuel comprises a burnable gas. 16. The burner of claim 12, wherein the tube is substantially cylindrical and wherein the slotted member is substantially cylindrical and is coaxial with the tube. 17. The burner of claim 1, further comprising a cylindrical sleeve, concentric with and disposed about the tube.