Kerosene combustion burner

Claim 2

A combustion burner comprising: a. a first inner cylinder, defining a combustion chamber within same and having an open input end and an opeN output end; b. a second outer cylinder, positioned concentrically around said first inner cylinder, said first and second cylinders being of equal length and defining therebetween an annular space, said annular space being closed at both ends, thereby forming a fuel supply chamber; c. fuel supply means for supplying fuel into said fuel supply chamber; d. heating means adapted to be turned off in response to external control and having heating elements positioned within said fuel supply chamber, for supplying heat energy within said chamber for the initial vaporization of some of said fuel in said fuel supply chamber; e. injection means communicating said combustion chamber input end with said fuel supply chamber for controllably feeding said vaporized fuel into said combustion chamber; f. temperature sensing means positioned adjacent to said injection means for sensing the temperature of said vaporized fuel in said injection means, and controllably connected to said heating means so as to turn off said heating means upon achievement of a predetermined temperature of said vaporized fuel; g. air intake means for supplying air into said input end; h. sparking means for igniting said vaporized fuel fed into said combustion chamber in combination with said air to achieve combustion of said vaporized fuel; and i. some of the heat of said combustion being communicated through said first cylinder to said fuel supply chamber, whereby the temperature of the vaporized fuel in said fuel chamber is raised to said predetermined temperature and steady state combustion is maintained with said heating means turned off.

Claim 3

The combustion burner described in claim 1 wherein said heating means comprises electrical heating elements connected to a source of electrical energy, said elements being located at the top of said fuel supply chamber.

Claim 4

A combustion burner comprising: a. a first inner cylinder, defining a combustion chamber within same and having an open input end and an open output end; b. a second outer cylinder, positioned concentrically around said first inner cylinder, said first and second cylinders being of equal length and defining therebetween an annular space, said annular space being closed at both ends, thereby forming a fuel supply chamber; c. fuel supply means for supplying fuel into said fuel supply chamber; d. heating means having heating elements positioned withing said fuel supply chamber, for supplying heat energy within said chamber for the vaporization of some of said fuel in said fuel supply chamber, said heating means comprising electrical heating elements connected to a source of electrical energy, said elements being located at the top of said fuel supply chamber; e. injection means communicating said combustion chamber input end with said fuel supply chamber for controllably feeding said vaporized fuel into said combustion chamber, comprising a supply line communicating with the top of said fuel supply chamber near the end thereof adjacent to said output end, said supply line running longitudinally along the outer top of said second cylinder toward the input end of said combustion chamber, and terminating in a nozzle positioned to discharge said vaporized fuel into said combustion chamber, said supply line being controlled by a solenoid actuated valve; f. temperature sensing means positioned adjacent to said injection means for sensing the temperature of said vaporized fuel in said injection means, and controllably connected to said heating means; g. air intake means for supplying air into said input end; and, h. sparking means for igniting said vaporized fuel fed into said combustion chamber in combination with said air.

Claim 5

A combustion burner comprising: a. a first inner cylinder, defining a combustion chamber within same and having an open input end and an open output end; b. a second outer cylinder, positioned concentrically around said first inner cylinder, said first and second cylinders being of equal length and defining therebetween an annular space, said annular space being closed at both ends, thereby forming a fuel supply chamber; c. fuel supply means for supplying fuel into said fuel supply chamber; d. heating means having heating elements positioned withing said fuel supply chamber, for supplying heat energy within said chamber for the vaporization of some of said fuel in said fuel supply chamber, said heating means comprising electrical heating elements connected to a source of electrical energy, said elements being located at the top of said fuel supply chamber; e. injection means communicating said combustion chamber input end with said fuel supply chamber for controllably feeding said vaporized fuel into said combustion chamber, comprising a supply line communicating with the top of said fuel supply chamber near the end thereof adjacent to said output end, said supply line running longitudinally along the outer top of said second cylinder toward the input end of said combustion chamber, and terminating in a nozzle positioned to discharge said vaporized fuel into said combustion chamber, said supply line being controlled by a solenoid actuated valve; f. temperature sensing means positioned adjacent to said injection means for sensing the temperature of said vaporized fuel in said injection means, and controllably connected to said heating means; g. air intake means for supplying air into said input end; and, h. sparking means for igniting said vaporized fuel fed into said combustion chamber in combination with said air.

Claim 6

The combustion burner described in claim 3 wherein said temperature sensing means comprises temperature sensitive electrical circuit elements positioned on the outside surface of said supply line near the point of communication of said supply liNe with said fuel supply chamber, and in heat transfer communication with the inside of said supply line.

Claim 7

A combustion burner as described in claim 4 wherein said temperature sensing means is electrically connected to said solenoid actuated valve and to said heating elements to open said solenoid actuated valve when said vapor temperature exceeds a first predetermined limit and to turn off said heating elements when said vapor temperature reaches a second predetermined limit.