A combustor having wake air injection is provided. The combustor includes a fuel nozzle, first and second vessels formed and disposed to define a flow path along which a first fluid flows in first and second opposite directions toward the fuel nozzle, a vane disposed in the flow path and an injector
A combustor having wake air injection is provided. The combustor includes a fuel nozzle, first and second vessels formed and disposed to define a flow path along which a first fluid flows in first and second opposite directions toward the fuel nozzle, a vane disposed in the flow path and an injector to inject a second fluid into wake formed by an obstruction disposed in the flow path upstream from the vane.
대표청구항▼
1. A combustor having wake air injection, comprising: a fuel nozzle;first and second vessels formed and disposed to define a flow path along which a first, low pressure fluid flows in first and second opposite directions toward the fuel nozzle;a vane disposed in the flow path; andan injector to inje
1. A combustor having wake air injection, comprising: a fuel nozzle;first and second vessels formed and disposed to define a flow path along which a first, low pressure fluid flows in first and second opposite directions toward the fuel nozzle;a vane disposed in the flow path; andan injector to inject a second, high pressure fluid into wake formed by an obstruction disposed in the flow path upstream from the vane. 2. The combustor according to claim 1, wherein the injector extends along at least one of radial and axial dimensions. 3. The combustor according to claim 1, wherein the injector has a slot-shaped cross-section. 4. The combustor according to claim 1, wherein the injector has an elliptical cross-section. 5. The combustor according to claim 1, wherein the injector has a race track-shaped cross-section. 6. The combustor according to claim 1, wherein the injector has a teardrop-shaped cross-section. 7. The combustor according to claim 1, wherein the injector comprises plural injectors. 8. The combustor according to claim 7, wherein one or more of the plural injectors has a unique shape and/or a unique penetration depth into the flow path. 9. The combustor according to claim 1, wherein an angle of injection of the second fluid into the wake is between about 20-80°. 10. A combustor having wake air injection, comprising: a fuel nozzle configured to form a mixture of combustible materials to be supplied for combustion operations;first and second vessels formed and disposed about the fuel nozzle to define a flow path along which a first, low pressure fluid flows in a first axial direction, then a radial direction and then a second axial direction, which is opposite the first axial direction, toward the fuel nozzle;a vane disposed in the flow path; andan injector to inject a second fluid, high pressure into wake formed by an obstruction disposed in the flow path at an axial location upstream from the vane. 11. A wake air injection apparatus, comprising: a first vessel having an end in which a mixture of combustible materials is formed and defining a combustion zone in which the mixture is combusted;a second vessel disposed about the first vessel to define a first space through which a flow of a first, low pressure fluid is directed toward the end of the first vessel and in which an obstruction is disposed to form a wake in the flow of the first fluid; anda third vessel disposed about the second vessel to define a second space to receive a second, high pressure fluid,the second vessel defining an injector, by which the second fluid is injected from the second space to the first space, and which is positioned downstream from the obstruction relative to the flow of the first fluid and in substantial, circumferential alignment with the wake. 12. The wake air injection apparatus according to claim 11, wherein the obstruction is substantially, axially aligned with a section of the combustion zone proximate to the end of the first vessel and disposed upstream from a fuel injector relative to the flow of the first fluid. 13. The wake air injection apparatus according to claim 11, wherein the injector extends along a radial dimension relative to the combustion zone. 14. The wake air injection apparatus according to claim 11, wherein the injector extends along radial and axial dimensions relative to the combustion zone. 15. The wake air injection apparatus according to claim 11, wherein the injector has at least one or more of a slot-shaped cross-section, an elliptical cross-section and a race track shaped cross-section. 16. The wake air injection apparatus according to claim 11, wherein the injector has a teardrop-shaped cross-section. 17. The wake air injection apparatus according to claim 11, wherein the injector comprises plural injectors. 18. The wake air injection apparatus according to claim 17, wherein one or more of the plural injectors has a unique shape. 19. The wake air injection apparatus according to claim 17, wherein one or more of the plural injectors has a unique penetration depth into the first space. 20. The wake air injection apparatus according to claim 11, wherein an angle of injection of the second fluid is between about 20-80°. 21. A combustor having wake air injection, comprising: a fuel nozzle;first and second vessels formed and disposed to define a flow path along which a first, low pressure fluid flows in first and second opposite directions toward the fuel nozzle;a vane disposed in and transversely spanning the flow path; andan injector to inject a second, high pressure fluid into wake formed by an obstruction disposed in the flow path upstream from the vane. 22. The combustor according to claim 21, wherein the injector extends along at least one of radial and axial dimensions. 23. The combustor according to claim 21, wherein the injector has a slot-shaped cross-section. 24. The combustor according to claim 21, wherein the injector has an elliptical cross-section. 25. The combustor according to claim 21, wherein the injector has a race track-shaped cross-section. 26. The combustor according to claim 21, wherein the injector has a teardrop-shaped cross-section. 27. The combustor according to claim 21, wherein the injector comprises plural injectors. 28. The combustor according to claim 27, wherein one or more of the plural injectors has a unique shape and/or a unique penetration depth into the flow path. 29. The combustor according to claim 21, wherein an angle of injection of the second fluid into the wake is between about 20-80°. 30. A combustor having wake air injection, comprising: a fuel nozzle configured to form a mixture of combustible materials to be supplied for combustion operations;first and second vessels formed and disposed about the fuel nozzle to define a flow path along which a first, low pressure fluid flows in a first axial direction, then a radial direction and then a second axial direction, which is opposite the first axial direction, toward the fuel nozzle;a vane disposed in and transversely spanning the flow path; andan injector to inject a second, high pressure fluid into wake formed by an obstruction disposed in the flow path at an axial location upstream from the vane.
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