CN103090415A - Combustor and method for supplying fuel to a combustor - Google Patents

Combustor and method for supplying fuel to a combustor Download PDF

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Publication number
CN103090415A
CN103090415A CN201210443755XA CN201210443755A CN103090415A CN 103090415 A CN103090415 A CN 103090415A CN 201210443755X A CN201210443755X A CN 201210443755XA CN 201210443755 A CN201210443755 A CN 201210443755A CN 103090415 A CN103090415 A CN 103090415A
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China
Prior art keywords
pumping chamber
end cap
burner
upstream face
downstream
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CN201210443755XA
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Chinese (zh)
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CN103090415B (en
Inventor
P.B.梅尔顿
J.H.韦斯特摩尔兰三世
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General Electric Co
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General Electric Co
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Publication of CN103090415A publication Critical patent/CN103090415A/en
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Publication of CN103090415B publication Critical patent/CN103090415B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00002—Gas turbine combustors adapted for fuels having low heating value [LHV]

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

A combustor includes an end cover, an end cap downstream from the end cover, and tubes that extend through the end cap. An outer support tube extends downstream from the end cover and connects to an upstream surface of the end cap. An inner support tube extends downstream from the end cover and connects to a downstream surface of the end cap. A first plenum surrounds the inner support tube between the end cover and the upstream surface and extends radially between the upstream and downstream surfaces. A second plenum surrounds the first plenum between the end cover and the upstream surface and extends radially between the upstream and downstream surfaces.

Description

Burner and be used for method to the burner feed fuels
Technical field
The present invention is broadly directed to burner and is used for method to the burner feed fuels.
Background technology
Burner is generally used in industry and generating operation with fire fuel, thereby generation has the burning gases of high temperature and high pressure.For example, gas turbine generally comprises one or more burner to produce power or thrust.For generation of the typical gas turbine of electric power comprise be positioned at anterior axial compressor, around one or more burner at middle part and the turbine that is positioned at the rear portion.Outside air can be fed into compressor, and the rotating vane in compressor and static blade little by little transmit kinetic energy to working fluid (air), to be created in the working fluid of the compression under upper state.The working fluid of compression is discharged compressor and is flowed into by one or more nozzle in the combustion chamber of each burner, the working fluid of compression in the combustion chamber with fuel mix and light to produce the burning gases with high temperature and high pressure.Burning gases expand in turbine with acting.For example, the expansion of burning gases in turbine can make the axle that is connected to generator rotate to produce electric power.
Various designs and operating parameter affect Burner design and operation.For example, higher burning gas temperature generally improves the thermodynamic efficiency of burner.But higher burning gas temperature also promotes backfire (flashback) or flame hold mode, and in this state, combustion flame moves towards the fuel of being supplied with by nozzle, may cause the heavy damage to nozzle within the relatively short time.In addition, the hot-spot striped in the combustion chamber may improve the resolution ratio of diatomic nitrogen, increases the generation of nitrogen oxide (NOx) under high combustion gas temperature more.On the contrary, the low burning gas temperature relevant with the fuel flow that reduces and/or partial load run (turning down) usually reduces the reaction rate of burning gases, increases the generation of carbon monoxide and unburned hydrocarbons.
In specific burner design, a plurality of pipes can radially be arranged in end cap to be communicated with the fluid that is used for working fluid, thereby flows through in end cap and flowing in combustion chamber.Fuel and/or diluent can be supplied to end cap and spurt in pipe, to strengthen mixing between working fluid and fuel before burning.Mixing between the working fluid that strengthened before burning and fuel reduced the overheated striped in the combustion chamber, and this may be in-problem for high combustion gas temperature more.Therefore, preventing that backfire or flame from keeping and/or reducing the NOx production method, particularly when higher running level, this pipe is effective.But, improved burner and to be used for to the method for burner feed fuels will be useful, this burner allow will be stage by stage the interpolation of (staged) fuel, pluralities of fuel and/or diluent be supplied to pipe in the situation that do not stop up pipe.
Summary of the invention
Each aspect of the present invention and advantage are following to be set forth in following explanation, perhaps can easily understand from specification, perhaps can be by learning enforcement of the present invention.
One embodiment of the present of invention are a kind of burners, and it comprises the end cap in end cap and end cap downstream, and end cap radially extends across at least a portion of (across) burner.End cap comprises and downstream surface separated upstream face axially.A plurality of pipes extend by downstream surface from upstream face, are communicated with so that the fluid by end cap to be provided.The external support pipe extends and is connected to the upstream face of end cap downstream from end cap.Internal support tube extends and is connected to the downstream surface of end cap downstream from end cap.The first pumping chamber (plenum) surrounds internal support tube between end cap and upstream face, radially extend between upstream face and downstream surface the first pumping chamber.The second pumping chamber surrounds the first pumping chamber between end cap and upstream face, and radially extend between upstream face and downstream surface the second pumping chamber.
An alternative embodiment of the invention is a kind of burner, and this burner comprises end cap and the fuel conduit that extends downstream from end cap.The downstream surface that is connected to fuel conduit radially extends across at least a portion of burner.With downstream surface axially separated upstream face radially extend across at least a portion of burner.A plurality of pipes extend by downstream surface from upstream face, are communicated with so that the fluid by upstream face and downstream surface to be provided.The first pumping chamber surrounds fuel conduit between end cap and upstream face, and radially extend between upstream face and downstream surface the first pumping chamber.The second pumping chamber surrounds the first pumping chamber between end cap and upstream face, and radially extend between upstream face and downstream surface the second pumping chamber.
The present invention can also comprise for the method to the burner feed fuels.The method comprises a plurality of pipes that working fluid flow through radially be arranged in end cap, and wherein, end cap radially extends across at least a portion of burner.The method also comprises at least a first pumping chamber of flowing through that makes in the first fuel or the first diluent, and wherein, the first pumping chamber is limited by the internal support tube of the downstream surface that is connected to end cap at least in part; And make at least a second pumping chamber of flowing through in the second fuel or the second diluent, and the second pumping chamber circumferentially surrounds at least a portion of the first pumping chamber, and wherein, the second pumping chamber is limited by the external support pipe of the upstream face that is connected to end cap at least in part.
Those of ordinary skills will be better understood when consulting this specification these embodiment feature and aspect.
Description of drawings
More specifically set forth in comprising with reference to the remainder of the description of the drawings book of the present invention comprise be to those skilled in the art best mode completely and the disclosure that can realize, in the accompanying drawings:
Fig. 1 is the viewgraph of cross-section of the simplification of exemplary burner according to an embodiment of the invention; And
Fig. 2 is the cross-section downstream view of the A-A intercepting along the line of the burner shown in Fig. 1.
The specific embodiment
Now will be in detail with reference to embodiments of the invention, one or more example of embodiment shown in the drawings.Specific embodiment utilization numeral and letter character represent the feature in accompanying drawing.Same or analogous symbol in accompanying drawing and explanation has been used to indicate same or analogous part of the present invention.Such as in this manual use, term " first ", " second " and " the 3rd " can be used to distinguish parts and another parts interchangeably, are not position or the importance that is intended to represent individual components.In addition, " upstream " and " downstream " refers to the relative position of parts in fluid path.For example, if fluid flows to part B from components A, components A is in the upstream of part B.On the contrary, if part B receives the Fluid Flow in A from components A, part B is in the downstream of components A.
Each example all provides by the mode that the present invention is made an explanation, and unrestricted the present invention.In fact, those skilled in the art are easy to expect, in the situation that do not depart from the scope of the present invention or its spirit can be made modification and variation to the present invention.For example, the parts that illustrate or illustrate as the part of an embodiment can be used to another embodiment to produce another embodiment.Therefore, the present invention is intended to cover these modification and the variation in the scope that falls into claims and equivalents thereof.
Each embodiment of the present invention provides a kind of burner and is used for method to the burner feed fuels.This burner roughly comprises a plurality of pipes, and a plurality of pipes radially are arranged in end cap, to strengthen mixing between working fluid and fuel before burning.In specific embodiment, inside and outside support can be connected to end cap, and a plurality of pumping chambers can supply with one or more of fuel and/or diluent to end cap, thereby flow through pipe.In other specific embodiments, fuel conduit can be connected to end cap with the supporting end cap, and the pumping chamber that surrounds the fuel pressure boost chamber can supply with one or more of fuel and/or diluent to end cap, thereby flows through pipe.Like this, each embodiment in scope of the present invention can reduce by pipe flow disturbance, strengthen the structure stand that is arranged on end cap, reduce the manufacturing cost of burner and/or make fuel interpolation stage by stage and/or pluralities of fuel and/or diluent can be in the situation that be no more than with backfire, flame keeps and/or the emission restriction is relevant design margin be supplied to pipe in the operating condition of wide region.Although in the context that is attached to the burner in gas turbine for the illustration purpose, exemplary embodiment of the present invention will be described generally, but those of ordinary skills will easily understand, unless record especially in the claims, embodiments of the invention can be applied to any burner and be not limited to gas turbine combustor.
Fig. 1 provides the viewgraph of cross-section of the simplification of exemplary burner 10 according to an embodiment of the invention, and Fig. 2 provides the cross-section downstream view of the A-A intercepting along the line of the burner shown in Fig. 1.As shown in the figure, housing 12 roughly surrounds burner 10 to comprise the working fluid 14 that flows to burner 10, and end cap 16 provides interface, to be used for to burner 10 feed fuels, diluent and/or other additives.Possible diluent can comprise, for example, and water, steam, working fluid, air, fuel additive, such as for the various inert gases of nitrogen and/or such as for the various incombustible gas of carbon dioxide or supply to the burning and gas-exhausting of burner 10.End cap 18 can radially extend across at least a portion of burner 10, housing 12 can be circumferentially around at least a portion of end cap 18 to limit annular channels 20 between end cap 18 and housing 12.End cap 18 and liner 22 can limit at least a portion of combustion chamber 24 in the downstream of end cap 18.Like this, working fluid 14 can be crossed annular channels 20 to provide convection current cooling to liner 22 along the outer flow of liner 22.When working fluid 14 reached end cap 16, working fluid 14 can be oppositely to flow through in end cap 18 and flowing in combustion chamber 24.
End cap 18 can comprise and the axial separated upstream face 26 of downstream surface 28, and guard shield 29 can surround upstream face 26 and downstream surface 28.A plurality of pipes 30 can axially extend to downstream surface 28 from upstream face 26, are communicated with so that fluid to be provided by end cap 18.Concrete shape, size, quantity and the layout of pipe 30 can change according to specific embodiment.For example, pipe 30 roughly is depicted as and has cylindrical shape; But the alternative embodiment in scope of the present invention can comprise the pipe with actual any geometric cross-section.In addition, pipe 30 can radially arrange in one or more groups of various shape and size or group and cross end cap 18, and every group of pipe 30 has one or more independently fuel supply.For example, a plurality of pipes 30 can radially arrange around fuel nozzle, and perhaps multi units tube 30 can be crossed end cap 18 and radially arranges.One or more fluid circuit can provide one or more of fuel, diluent and/or other additives to every group of pipe 30, and the type of fuel and/or diluent, fuel content and reactivity can change for each fluid circuit or every group of pipe.Like this, different types, flow velocity and/or additive can be supplied to one or more groups pipe, with the interpolation of fuel stage by stage of reinforced pipe 30 under the operating condition of wide region.
Burner 10 can comprise one or more structure of extending downstream from end cap 16, with the supporting end cap 18 and/or end cap 16 is provided and end cap 18 between various fluid passages.For example, as shown in Figure 1, burner 10 can comprise internal support tube 40 and the external support pipe 42 that extends downstream from end cap 16.Internal support tube 40 can be connected to the downstream surface 28 of end cap 18, with the local support end cap 18 axially in burner 10 inside.In certain embodiments, internal support tube 40 can also act as or comprise fuel conduit 40, and fuel conduit 40 extends downstream from end cap 16, with in the inner fuel pressure boost chambers 44 that limit of internal support tube 40.Like this, internal support tube/fuel conduit 40 can provide from end cap 16 to end cap 18 fluid to be communicated with, with to end cap 18 and/or combustion chamber 24 feed fuels.
External support pipe 42 can circumferentially surround internal support tube 40 and be connected to the upstream face 26 of end cap 18, with the local support end cap 18 axially in burner 10 inside.In addition, external support pipe 42 can limit one or more fluid passage between end cap 16 and end cap 18.For example, as shown in Figure 1, barrier 46 can upstream axially extend from upstream face 26 between internal support tube 40 and external support pipe 42, to limit partly the first pumping chamber 50 and the second pumping chamber 52 between internal support tube 40 and external support pipe 42.From upstream face 26 downstream, barrier 46 can be between the first pumping chamber 50 and the second pumping chamber 52 radially extends, with in inner the first pumping chamber 50 and the second pumping chambers 52 of further separating of end cap 18.Therefore, between upstream face 26 and downstream surface 28 before end cap 18 inner radial ground extend, the first pumping chamber 50 can circumferentially surround internal support tube/fuel conduit 40 between end cap 16 and upstream face 26.Similarly, between upstream face 26 and downstream surface 28 before end cap 18 inner radial ground extend, the second pumping chamber 52 can circumferentially surround the first pumping chamber 50 between end cap 16 and upstream face 26.In specific embodiment shown in Figure 1, therefore radially extend from the second pumping chamber 52 by the direction of end cap 18 with respect to working fluid 14 downstream in end cap 18 inside the first pumping chamber 50.
The first pumping chamber 50 and the second pumping chamber 52 provide end cap 16 to be communicated with fluid between end cap 18, so that various fuel, diluent or other fluid additives can be supplied to pipe 30.Then, each pipe 30 can comprise one or more port 54, and port 54 provides from the first fuel pressure boost chamber 50 and/or the fluid of the second fuel pressure boost chamber 52 by pipe 30 is communicated with.Port 54 can be radially, axially and/or angle ground (azimuthally) tilt, with to flowing through the fluid ejaculation in port 54 and inflow pipe 30 and/or applying eddy flow.In addition, concrete quantity, size and the position of the port 54 of pipe in 30 can be changed to allow stage by stage flow to managing 30.For example, as shown in Figure 1, first group of pipe 60 can comprise that providing 54, the second groups of pipes 62 of port that only are communicated with first pumping chamber's 50 fluids to comprise provides the port 54 that only is communicated with second pumping chamber's 52 fluids.Like this, working fluid 14 can flow to by annular channels 20 outside of end cap 18, until it arrives end cap 16 and reverse directions and flows through pipe 30.In addition, the first fuel or diluent can be in the first pumping chamber 50 flow around pipe 30, thus with flow through port 54 and flow into first group of pipe 60 and working fluid 14 mix before provide convection current cooling to managing 30.Similarly, the second fuel or diluent can flow around pipe 30 in the second pumping chamber 52, thereby to provide convection current cooling to pipe 30 in flowing through port 54 and flowing into second group of pipe 60 with before working fluid 14 mixes.From every group of pipe 60,62 mixture then can flowing in combustion chamber 24 in.
Burner 10 can also comprise the other structure for the thermal expansion between supporting end cap 18 and/or permission all parts.For example, as shown in the specific embodiment shown in Fig. 1 and 2, burner 10 can comprise flexible coupler 64 between end cap 16 and internal support tube/fuel conduit 40 and/or barrier 46.Flexible coupler 64 can comprise and allows by external support pipe 42 and/or manage 30 thermal expansion and expansion pipe, bellows or other devices of the axial displacement of internal support tube/fuel conduit 40 that thermal contraction causes and/or barrier 46.Those of ordinary skills will easily understand, the alternative position of flexible coupler 64 and/or assembly drop are in the scope of each embodiment of the present invention, the ad-hoc location of flexible coupler 64 or quantity are not limitations of the present invention, unless record especially in claim.
As further illustrating in Fig. 1 and Fig. 2, the support 66 that burner 10 can also be included in annular channels 20, radially extend between end cap 18 and housing 12.Support 66 can have air foil shape, with the flow resistance of the working fluid 14 that reduces to flow through the support 66 in annular channels 20.In certain embodiments, support 66 can tilt to apply eddy flow to the working fluid 14 that flows through annular channels 20.Alternately or in addition, burner 10 can comprise the cap screen 68 that circumferentially surrounds end cap 18 and/or be slidably engaged part 70 between end cap 18 and cap screen 68.Cap screen 68 can be connected to support 66 and/or surround the guard shield 29 of end cap 18.Being slidably engaged part 70 can comprise spring washer, exhale and draw seal (hulaseal) or similar device, and can extend continuously or around 18 one-tenth sections of end cap around end cap 18, as shown in Figure 2, to allow end cap 18 with respect to the axially-movable of cap screen 68 and/or support 66.In certain embodiments, be slidably engaged part 70 and can also provide variable radial rigidity to end cap 18, carry out slightly change to allow intrinsic or resonant frequency to end cap 18.
Be provided for to the multiple combination of the method for burner 10 feed fuels at each embodiment shown in Fig. 1 and Fig. 2.For example, working fluid 14 can be supplied with by annular channels 20 and the pipe 30 that radially is arranged in end cap 18.The first fuel or the first diluent can be supplied to first group of pipe 60 by the first pumping chamber 50, and the second fuel or the second diluent can be supplied to second group of pipe 62 by the second pumping chamber 52.Alternately or in addition, the 3rd fuel or the 3rd diluent can be supplied to combustion chamber 24 by fuel pressure boost chamber 44.First, second, and third fuel and diluent can be identical or different, the method very flexibly that is provided for thus providing to each position of burner 10 fuel stage by stage to add is so that burner 10 can be in the situation that be no more than with backfire, flame keeps and/or the emission restriction is relevant design capacity and operate under the operating condition of wide region.
This specification utilizes example to disclose the present invention, comprises best mode, and makes any person skilled in the art can implement the present invention, comprises the method for making and using any device or system and carry out any employing.Of the present invention can patented scope being defined by the claims, and can comprise conceivable other examples of those skilled in the art.If these other examples comprise be not be different from claim word language structural detail or comprise and the word language of the claim equivalent structure element without essential distinction, these other examples are intended to fall in the scope of claim.

Claims (20)

1. burner comprises:
A. end cap;
B. be positioned at the end cap in described end cap downstream, described end cap radially extends across at least a portion of described burner, and wherein, described end cap comprises and downstream surface isolated upstream face axially;
C. manage for many, described a plurality of pipes extend by described downstream surface from described upstream face, are communicated with so that the fluid by described end cap to be provided;
D. external support pipe, described external support pipe extends and is connected to the described upstream face of described end cap downstream from described end cap;
E. internal support tube, described internal support tube extends and is connected to the described downstream surface of described end cap downstream from described end cap;
F. the first pumping chamber, described the first pumping chamber surrounds described internal support tube between described end cap and described upstream face, and wherein, radially extend between described upstream face and described downstream surface described the first pumping chamber; And
G. the second pumping chamber, described the second pumping chamber surrounds described the first pumping chamber between described end cap and described upstream face, and wherein, radially extend between described upstream face and described downstream surface described the second pumping chamber.
2. burner as claimed in claim 1, is characterized in that, described the first pumping chamber is in the radially extension downstream from described the second pumping chamber of described end cap inside.
3. burner as claimed in claim 1, is characterized in that, described the first pumping chamber is communicated with first group of fluid in described a plurality of pipes, and described the second pumping chamber is communicated with second group of fluid in described a plurality of pipes.
4. burner as claimed in claim 1, it is characterized in that, described burner also is included in the barrier that extends between described the first pumping chamber and described the second pumping chamber, and described barrier upstream axially extends from described upstream face between described the first pumping chamber and described the second pumping chamber.
5. burner as claimed in claim 4, is characterized in that, described barrier radially extends downstream from described upstream face between described the first pumping chamber and described the second pumping chamber.
6. burner as claimed in claim 1, is characterized in that, described burner also comprises the fuel pressure boost chamber that is positioned at described internal support tube inside.
7. burner as claimed in claim 1, it is characterized in that, described burner also comprises housing and support, described housing circumferentially surrounds at least a portion of described end cap to limit annular channels between described end cap and described housing, and described support radially extends between described end cap and described housing in described annular channels.
8. burner as claimed in claim 1, is characterized in that, described burner also comprises the cap screen, and described cap screen circumferentially surrounds described end cap.
9. burner as claimed in claim 8, is characterized in that, described burner also comprises the part that is slidably engaged between described end cap and described cap screen.
10. burner comprises:
A. end cap;
B. fuel conduit, described fuel conduit extends downstream from described end cap;
C. be connected to the downstream surface of described fuel conduit, wherein, described downstream surface is crossed at least a portion of described burner and is radially extended;
D. with described downstream surface separated upstream face axially, wherein, described upstream face is crossed at least a portion of described burner and is radially extended;
E. manage for many, described a plurality of pipes extend by described downstream surface from described upstream face, are communicated with so that the fluid by described upstream face and described downstream surface to be provided;
F. the first pumping chamber, described the first pumping chamber surrounds described fuel conduit between described end cap and described upstream face, and wherein, radially extend between described upstream face and described downstream surface described the first pumping chamber; And
G. the second pumping chamber, described the second pumping chamber surrounds described the first pumping chamber between described end cap and described upstream face, and wherein, radially extend between described upstream face and described downstream surface described the second pumping chamber.
11. burner as claimed in claim 10 is characterized in that, radially extend downstream from described the second pumping chamber between described upstream face and described downstream surface described the first pumping chamber.
12. burner as claimed in claim 10 is characterized in that, described the first pumping chamber is communicated with first group of fluid in described a plurality of pipes, and described the second pumping chamber is communicated with second group of fluid in described a plurality of pipes.
13. burner as claimed in claim 10 is characterized in that, described burner also is included in the barrier that extends between described the first pumping chamber and described the second pumping chamber.
14. burner as claimed in claim 10 is characterized in that, described burner also comprises the external support pipe, and described external support pipe extends downstream and is connected to described upstream face from described end cap.
15. burner as claimed in claim 10 is characterized in that, described burner also comprises the flexible coupler between described end cap and described fuel conduit.
16. burner as claimed in claim 10, it is characterized in that, described burner also is included in the barrier that extends between described the first pumping chamber and described the second pumping chamber, and described barrier upstream axially extends from described upstream face between described the first pumping chamber and described the second pumping chamber.
17. burner as claimed in claim 16 is characterized in that, described barrier radially extends downstream from described upstream face between described the first pumping chamber and described the second pumping chamber.
18. a method that is used for to the burner feed fuels comprises:
Working fluid is flow through radially be arranged in a plurality of pipes in end cap, wherein, described end cap radially extends across at least a portion of described burner;
B. make at least a first pumping chamber of flowing through in the first fuel or the first diluent, wherein, described the first pumping chamber is limited by the internal support tube of the downstream surface that is connected to described end cap at least in part; And
C. make at least a second pumping chamber of flowing through in the second fuel or the second diluent, described the second pumping chamber circumferentially surrounds at least a portion of described the first pumping chamber, wherein, described the second pumping chamber is limited by the external support pipe of the upstream face that is connected to described end cap at least in part.
19. method as claimed in claim 18 is characterized in that, described method also comprises makes the 3rd fuel in described internal support tube internal flow.
20. method as claimed in claim 18 is characterized in that, described method also comprises makes at least a in described the first fuel or the first diluent radially flow downstream from described the second pumping chamber in described end cap inside.
CN201210443755.XA 2011-11-08 2012-11-08 Burner and the method being used for supplying fuel to burner Expired - Fee Related CN103090415B (en)

Applications Claiming Priority (2)

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US13/291441 2011-11-08
US13/291,441 US20130115561A1 (en) 2011-11-08 2011-11-08 Combustor and method for supplying fuel to a combustor

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CN103090415B CN103090415B (en) 2016-09-21

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US20130115561A1 (en) 2013-05-09
CN103090415B (en) 2016-09-21
EP2592345A1 (en) 2013-05-15
EP2592345B1 (en) 2017-03-08

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