Fuel injection method and apparatus for a combustor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-001/00
B05B-001/26
출원번호
US-0729679
(2003-12-05)
발명자
/ 주소
Sprouse,Kenneth M
Farhangi,Shahram
von Arx,Alan V
Matthews,David R
출원인 / 주소
United Technologies Corporation
대리인 / 주소
Harness Dickey &
인용정보
피인용 횟수 :
4인용 특허 :
25
초록▼
A combustor and injector system to inject a selected fuel into a combustor of a gas powered turbine. Generally, the injector is able to inject a selected fuel into a stream of an oxidizer to substantially mix the fuel with the oxidizer stream before any of the fuel in the fuel fan reaches an auto ig
A combustor and injector system to inject a selected fuel into a combustor of a gas powered turbine. Generally, the injector is able to inject a selected fuel into a stream of an oxidizer to substantially mix the fuel with the oxidizer stream before any of the fuel in the fuel fan reaches an auto ignition temperature. Therefore the fuel may be substantially combusted at once and without any substantial hot spots.
대표청구항▼
What is claimed is: 1. An injector, comprising: a combustion chamber in which a volume of the fuel is combusted; an oxidizer supply to supply a selected oxidizer to said combustion chamber; a preheat section to heat the oxidizer to a first temperature; an oxidizer pathway to provide the oxidizer a
What is claimed is: 1. An injector, comprising: a combustion chamber in which a volume of the fuel is combusted; an oxidizer supply to supply a selected oxidizer to said combustion chamber; a preheat section to heat the oxidizer to a first temperature; an oxidizer pathway to provide the oxidizer at the first temperature to said combustion chamber; an injector slot near said oxidizer pathway; a splash surface to spread the volume of the fuel in said injector slot; and an aperture through which the volume of the fuel is transferred from the fuel supply to the splash surface; wherein the volume of the fuel substantially mixes with the oxidizer from said oxidizer pathway prior to combusting; wherein said injector slot has a slot width; wherein said aperture provides a hydraulic diameter of the selected fuel less than about 80% of said slot width. 2. An injector for injecting a fuel into a gas powered turbine, comprising: a combustion chamber in which a volume of the fuel is combusted; an oxidizer supply to supply a selected oxidizer to said combustion chamber; a preheat section to heat the oxidizer to a first temperature; an oxidizer pathway to provide the oxidizer at the first temperature to said combustion chamber; an injector slot near said oxidizer pathway; and a splash surface to spread the volume of the fuel in said injector slot; wherein the volume of the fuel substantially mixes with the oxidizer from said oxidizer pathway prior to combusting; and an injector plate defining at least a portion of said oxidizer pathway. 3. The injector of claim 2, further comprising: an injector face defined by said injector plate; an injector nose extending downstream of said injector face, such that the oxidizer flows past said injector nose. 4. The injector of claim 3, wherein said injector nose includes an internal angle of about 4째 to about 40째. 5. The injector of claim 3, wherein said injector nose defines a plane that allows a flow of the oxidizer past said injector nose substantially turbulence free. 6. An injector for injecting a fuel into a gas powered turbine, comprising: a combustion chamber in which a volume of the fuel is combusted; an oxidizer supply to supply a selected oxidizer to said combustion chamber; a preheat section to heat the oxidizer to a first temperature; a plurality of oxidizer pathways to provide the oxidizer at the first temperature to said combustion chamber; an injector nose extending near said splash surface; wherein an internal angle of the injector nose is about 4째 to about 40째 a plurality of injector slots near said plurality of oxidizer pathways; and a splash surface associated with each injector slot to spread the volume of the fuel; wherein the volume of the fuel substantially mixes with the oxidizer from said plurality of oxidizer pathways prior to combusting; wherein said plurality of oxidizer pathways and said plurality of injector slots are positioned in a row. 7. The injector of claim 6, further comprising: an aperture through which the volume of the fuel is transferred from the fuel supply to the splash surface. 8. The injector of claim 7, further comprising: an injector element defining at least each of said injector slot, said splash surface, and said aperture; wherein said aperture is provided in a portion of said injector element to provide a fuel to the injector slot and said splash surface. 9. The injector of claim 8, wherein each of said injector slots defines at least a portion of said splash surface; wherein said aperture supplies fuel to each of said injector slots and at least a portion of said fuel engages said splash surface. 10. The injector of claim 6, wherein said splash surface is operable to develop a sheet flow of fuel; wherein each of said injector slots provides the sheet flow of fuel into a stream of the oxidizer from each of said oxidizer pathways. 11. The injector of claim 6, wherein said splash surface produces a sheet flow of the fuel and each of said injection slots directs said sheet flow of fuel into a stream of oxidizer emanating from each of said oxidizer pathways; wherein said sheet of fuel substantially mixes with said stream of oxidizer before any portion of the fuel combusts. 12. The injector of claim 11, wherein the fuel includes a first fuel and a second fuel, wherein said second fuel is different from said fuel. 13. The injector of claim 12, wherein said first fuel is at least one of hydrogen, methane, natural gas, Synthesis gas, and combinations thereof; and said second fuel is at least one of a hydrogen, a methane, a Synthesis gas, a natural gas, in combinations thereof. 14. The injector of claim 6, wherein the fuel includes at least a first fuel and a second fuel, wherein said first fuel and said second fuel are different. 15. An injector for injecting a selected fuel into a fluid stream, comprising: a fuel supply to supply the selected fuel; a splash surface to spread a selected volume of the selected fuel; an injector slot, having a slot width; an aperture to allow the volume of the selected fuel from the fuel supply to leave said injector slot; a combustion chamber in which fuel from the fuel supply is operable to be combusted; wherein said aperture provides a hydraulic diameter of the selected fuel in said injector slot less than about 80% of said slot width. 16. The injector of claim 15, wherein said slot width is greater than about 0.02 inches. 17. The injector of claim 15, further comprising an injector element defining a void to which the selected volume of the selected fuel is provided before being spread on said splash surface. 18. The injector of claim 17, wherein said injector element further defines said aperture near said injector slot; wherein said fuel is supplied from said void through said aperture to said injector slot in a substantially unitary structure. 19. The injector of claim 17, further comprising: a removable member operably sealing said void in a first selected position and removable to unseal said void; wherein said plug may be removed to obtain access to at least said aperture. 20. The injector of claim 15, further comprising: a nose portion extending downstream of said injector slot; wherein said nose portion of system directs a flow of a fluid. 21. The injector of claim 20, wherein said nose portion includes an internal half-angle of about 2째 to about 40째. 22. The injector of claim 20, wherein said nose includes a planar portion defining a plane substantially perpendicular to a flow of a fluid past said nose; wherein said planar portion is operable to achieve a selected holding flame. 23. The injector of claim 15, further comprising: a coolant pathway; wherein said coolant pathway is operable to maintain a temperature of the injector during use. 24. The injector of claim 15, further comprising: an elongated member defining a plurality of said splash plates, a plurality of said injector slots, and a plurality of said apertures; wherein at least one of said plurality of said splash plates, said apertures, and said injectors define a single injector portion for injecting the fuel into a selected area. 25. The injector of claim 15, wherein said fuel supply is operable to supply at least one of hydrogen, methane, natural gas, Synthesis gas, and combinations thereof.
Betta Ralph A. D. (Mountain View CA) Shoji Toru (Sunnyvale CA) Yee David K. (San Bruno CA) Magno Scott A. (Dublin CA), Catalyst structure employing integral heat exchange.
Dalla Betta Ralph A. (Mountain View CA) Shoji Toru (Sunnyvale CA) Tsurumi Kazunori (Fujisawa JPX) Ezawa Nobuyasu (Koto JPX), Catalyst structure for use in a partial combustion process.
Ansart Denis R. H. (Bois Le Roi FRX) Desaulty Michel A. A. (Vert Saint Denis FRX) Sandelis Denis J. M. (Nangis FRX), Fuel/oxidizer premixing combustion chamber.
Dalla Betta Ralph A. (Mountain View CA) Yee David K. (Hayward CA) Magno Scott A. (Dublin CA) Shoji Toru (Hiratsuka JPX), Process and catalyst structure employing intergal heat exchange with optional downstream flameholder.
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