Combustion chamber for gas dynamic laser

Claim 2

A combustor for a gas dynamic laser having an elongated combustion chamber with its forward end closed and rearward end open; a first set of opening means located a first predetermined distance downstream of the front of said chamber for injecting a fuel and oxidant; a second set of opening means located a second predetermined distance downstream of said first set of opening means for injecting a diluent for cooling and modifying the exhaust to provide proper composition and temperature for a gas dynamic laser; a mixing chamber extends a third predetermined distance from the second set of opening means for obtaining even mixing of the exhaust; each of said opening means of said first set includes a first opening in the chamber and a second smaller opening located in said first opening; first conduit means extending outwardly from each of said first openings in the chamber; second conduit means extending outwardly from each of said smaller openings; an oxidant supply tank; means for supplying oxidant from said oxidant supply tank to said first conduit means; a fuel supply tank; means for supplying fuel from said fuel supply tank to said second conduit means; each of said opening means of said second set including a third opening in the chamber; third conduit means extending outwardly from said openings in the chamber; a diluent supply tank; means f0r supplying a diluent from said diluent supply tank to said third conduit means; said combustion chamber is formed circular in cross-section and said first predetermined distance is approximately equal to the diameter of said combustion chamber.

Claim 3

A combustor for a gas dynamic laser as set forth in claim 1 wherein the first set of opening means includes a plurality of first openings with a conduit having a smaller opening located concentrically in said first opening each conduit forming an annular opening with its cooperating first opening, each first opening and smaller opening of said conduits being directed to inject the fluids substantially radially inwardly along said first injection plane.

Claim 4

A combustor for a gas dynamic laser as set forth in claim 1 wherein said first conduit means includes a first cOntrol valve means for controlling the oxidant therethrough, said second conduit means includes a second control valve means for controlling the fuel therethrough; and said third conduit means includes a third control valve means for controlling the diluent therethrough.

Claim 5

A combustor for a gas dynamic laser as set forth in claim 1 wherein O2 and N2 are injected through said first set of opening means, control valve means for varying the ratio of O2 to N2 being injected through said first set of opening means.

Claim 6

A combustor for a gas dynamic laser as set forth in claim 1 wherein said diluent for cooling and modifying the exhaust is N2.

Claim 7

A combustor for a gas dynamic laser having an elongated combustion chamber with its forward end closed and rearward end open; a first set of opening means located a first predetermined distance downstream of the front of said chamber for injecting a fuel and oxidant; a second set of opening means located a second predetermined distance downstream of said first set of opening means for injecting a diluent for cooling and modifying the exhaust to provide proper composition and temperature for a gas dynamic laser; a mixing chamber extends a third predetermined distance from the second set of opening means for obtaining even mixing of the exhaust; each of said opening means of said first set includes a first opening in the chamber and a second smaller opening located in said first opening; first conduit means extending outwardly from each of said first openings in the chamber; second conduit means extending outwardly from each of said smaller openings; an oxidant supply tank; means for supplying oxidant from said oxidant supply tank to said first conduit means; a fuel supply tank; means for supplying fuel from said fuel supply tank to said second conduit means; each of said opening means of said second set including a third opening in the chamber; third conduit means extending outwardly from said openings in the chamber; a diluent supply tank; means for supplying a diluent from said diluent supply tank to said third conduit means; said combustion chamber is formed circular in cross-section and said second predetermined distance is approximately equal to the diameter of said combustion chamber.

Claim 8

A combustor for a gas dynamic laser having an elongated combustion chamber with its forward end closed and rearward end open; a first set of opening means located a first predetermined distance downstream of the front of said chamber for injecting a fuel and oxidant; a second set of opening means located a second predetermined distance downstream of said first set of opening means for injecting a diluent for cooling and modifying the exhaust to provide proper composition and temperature for a gas dynamic laser; a mixing chamber extends a third predetermined distance from the second set of opening means for obtaining even mixing of the exhaust; each of said opening means of said first set includes a first opening in the chamber and a second smaller opening located in said first opening; first conduit means extending outwardly from each of said first openings in the chamber; second conduit means extending outwardly from each of said smaller openings; an oxidant supply tank; means for supplying oxidant from said oxidant supply tank to said first conduit means; a fuel supply tank; means for supplying fuel from said fuel supply tank to said second conduit means; each of said opening means of said second set including a third opening in the chamber; third conduit means extending outwardly from said openings in the chamber; a diluent supply tank; means for supplying a diluent from said diluent supply tank to said third conduit means; said combustion chamber is formed circular in cross-section and said second predetermined distance is approximately equal to the diameter of said combustion chamber.

Claim 9

A combustor for a gas dynamic laser having an elongated combustion chamber with its forward end closed and rearward end open; a first set of opening means located a first predetermined distance downstream of the front of said chamber for injecting a fuel and oxidant; a second set of opening means located a second predetermined distance downstream of said first set of opening means for injecting a diluent for cooling and modifying the exhaust to provide proper composition and temperature for a gas dynamic laser; a mixing chamber extends a third predetermined distance from the second set of opening means for obtaining even mixing of the exhaust; each of said opening means of said first set includes a first opening in the chamber and a second smaller opening located in said first opening; first conduit means extending outwardly from each of said first openings in the chamber; second conduit means extending outwardly from each of said smaller openings; an oxidant supply tank; means for supplying oxidant from said oxidant supply tank to said first conduit means; a fuel supply tank; means for supplying fuel from said fuel supply tank to said second conduit means; each of said opening means of said second set including a third opening in the chamber; third conduit means extending outwardly from said openings in the chamber; a diluent supply tank; means for supplying a diluent from said diluent supply tank to said third conduit means; said combustion chamber is formed circular in cross-section and said third predetermined distance is approximately equal to two times the diameter of said combustion chamber.

Claim 10

A combustor for a gas dynamic laser having an elongated combustion chamber with its forward end closed and rearward end open; a first set of opening means located a first predetermined distance downstream of the front of said chamber for injecting a fuel and oxidant; a second set of opening means located a second predetermined distance downstream of said first set of opening means for injecting a diluent for cooling and modifying the exhaust to provide proper composition and temperature for a gas dynamic laser; a mixing chamber extends a third predetermined distance from the second set of opening means for obtaining even mixing of the exhaust; each of said opening means of said first set includes a first opening in the chamber and a second smaller opening located in said first opening; first conduit means extending outwardly from each of said first openings in the chamber; second conduit means extending outwardly from each of said smaller openings; an oxidant supply tank; means for supplying oxidant from said oxidant supply tank to said first conduit means; a fuel supply tank; means for supplying fuel from said fuel supply tank to said second conduit means; each of said opening means of said second set including a third opening in the chamber; third conduit means extending outwardly from said openings in the chamber; a diluent supply tank; means for supplying a diluent from said diluent supply tank to said third conduit means; said combustion chamber is formed circular in cross-section and said third predetermined distance is approximately equal to two times the diameter of said combustion chamber.

Claim 11

A combustor for a gas dynamic laser having an elongated combustion chamber with its forward enD closed and rearward end open; a first set of opening means located a first predetermined distance downstream of the front of said chamber for injecting a fuel and oxidant; a second set of opening means located a second predetermined distance downstream of said first set of opening means for injecting a diluent for cooling and modifying the exhaust to provide proper composition and temperature for a gas dynamic laser; a mixing chamber extends a third predetermined distance from the second set of opening means for obtaining even mixing of the exhaust; each of said opening means of said first set includes a first opening in the chamber and a second smaller opening located in said first opening; first conduit means extending outwardly from each of said first openings in the chamber; second conduit means extending outwardly from each of said smaller openings; an oxidant supply tank; means for supplying oxidant from said oxidant supply tank to said first conduit means; a fuel supply tank; means for supplying fuel from said fuel supply tank to said second conduit means; each of said opening means of said second set including a third opening in the chamber; third conduit means extending outwardly from said openings in the chamber; a diluent supply tank; means for supplying a diluent from said diluent supply tank to said third conduit means; the fuel is CO with H2 added, the oxidant includes O2, the gas for cooling and modifying the exhaust includes N2, and the combustion chamber is formed circular in cross-section with the first and second predetermined distances being approximately equal to the diameter of said combustion chamber.

Claim 12

A combustor for a gas dynamic laser having an elongated combustion chamber with its forward enD closed and rearward end open; a first set of opening means located a first predetermined distance downstream of the front of said chamber for injecting a fuel and oxidant; a second set of opening means located a second predetermined distance downstream of said first set of opening means for injecting a diluent for cooling and modifying the exhaust to provide proper composition and temperature for a gas dynamic laser; a mixing chamber extends a third predetermined distance from the second set of opening means for obtaining even mixing of the exhaust; each of said opening means of said first set includes a first opening in the chamber and a second smaller opening located in said first opening; first conduit means extending outwardly from each of said first openings in the chamber; second conduit means extending outwardly from each of said smaller openings; an oxidant supply tank; means for supplying oxidant from said oxidant supply tank to said first conduit means; a fuel supply tank; means for supplying fuel from said fuel supply tank to said second conduit means; each of said opening means of said second set including a third opening in the chamber; third conduit means extending outwardly from said openings in the chamber; a diluent supply tank; means for supplying a diluent from said diluent supply tank to said third conduit means; the fuel is CO with H2 added, the oxidant includes O2, the gas for cooling and modifying the exhaust includes N2, and the combustion chamber is formed circular in cross-section with the first and second predetermined distances being approximately equal to the diameter of said combustion chamber.