US20130104553A1 - Injection apparatus - Google Patents
Injection apparatus Download PDFInfo
- Publication number
- US20130104553A1 US20130104553A1 US13/286,744 US201113286744A US2013104553A1 US 20130104553 A1 US20130104553 A1 US 20130104553A1 US 201113286744 A US201113286744 A US 201113286744A US 2013104553 A1 US2013104553 A1 US 2013104553A1
- Authority
- US
- United States
- Prior art keywords
- injection hole
- injection
- annular base
- injection apparatus
- tubular body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- 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
- F23R3/34—Feeding into different combustion zones
- F23R3/346—Feeding into different combustion zones for staged combustion
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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
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/06—Arrangement of apertures along the flame tube
-
- 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
- F23R2900/03282—High speed injection of air and/or fuel inducing internal recirculation
Definitions
- the subject matter disclosed herein relates to an injection apparatus and, more particularly, to an injection apparatus for attachment to an outer vessel disposed about an inner vessel formed to define a main flowpath.
- a typical turbomachine such as a gas turbine engine, includes a compressor, a combustor and a turbine.
- the compressor compresses inlet gas to produce compressed gas, which is transmitted to the combustor.
- the compressed gas is mixed with fuel and combusted to produce high temperature fluids. These high temperature fluids are then directed to the turbine for power and/or electricity generation.
- a transition piece may be disposed between the combustor and the turbine such that the high temperature fluids flow through the transition piece prior to entering the turbine.
- LLI late lean injection
- an injection apparatus includes an annular base defining an injection hole location and having a protrusion about the injection hole location and a tubular body formed to define an injection hole, the tubular body to be sealably fastened to the annular base and the protrusion at the injection hole location such that the tubular body and the protrusion cooperatively define a plenum, which is communicative with the injection hole.
- an injection apparatus for attachment to an outer vessel disposed about an inner vessel formed to define a main flowpath.
- the injection apparatus includes an annular base to be fastened to the outer vessel, the annular base defining an injection hole location and having a protrusion about the injection hole location and a tubular body formed to define an injection hole, the tubular body to be sealably fastened to the annular base and the protrusion at the injection hole location such that the injection hole permits communication between an exterior of the outer vessel and the main flowpath and the tubular body and the protrusion cooperatively define a plenum, which is communicative with the injection hole.
- an injection apparatus for attachment to an outer vessel disposed about an inner vessel formed to define a main flowpath.
- the injection apparatus includes an annular base to be fastened to the outer vessel, the annular base defining injection hole locations and having protrusions about the injection hole locations and tubular bodies each formed to define an injection hole and each to be sealably fastened to the annular bases and the protrusions at each injection hole location such that at each injection hole location the corresponding one of the injection holes permits communication between an exterior of the outer vessel and the main flowpath and the corresponding one of the tubular bodies and the corresponding one of the protrusions cooperatively define a plenum.
- the corresponding one of the tubular bodies is further formed to define additional injection holes for communication between the plenum and the injection hole.
- FIG. 1 A schematic side view of an injection apparatus in accordance with embodiments.
- an injection apparatus 10 is provided.
- the injection apparatus 10 is attachable to an outer vessel 11 , such as an impingement sleeve or a flow sleeve of an exemplary turbomachine transition piece.
- the outer vessel 11 may be disposed about an inner vessel 12 , which may be the turbomachine transition piece and may be formed to define a main flowpath 120 .
- high temperature fluids are produced in a combustor and directed toward a turbine by way of the turbomachine transition piece.
- the flow of the high temperature fluids thus proceeds along the main flowpath 120 of the inner vessel 12 .
- the injection apparatus 10 may be attachable to other vessels in the turbomachine and/or other systems.
- the injection apparatus 10 may be attachable to a forward end of the impingement sleeve (i.e., proximate to the axial injection flow sleeve), the aft end of the impingement sleeve or to a flow sleeve of the combustor.
- the injection apparatus 10 includes a ring-shaped or annular base 20 and a tubular body 40 .
- the annular base 20 is configured to be fastened to the outer vessel 11 by one or more of bolting, welding, sealing and butt welding.
- the annular base 20 has a first surface 21 that is formed to define an injection hole location 200 and a protrusion 25 .
- the protrusion 25 protrudes from an interior facing surface 26 of the annular base 20 and extends perimetrically about the injection hole location 200 such that the protrusion 25 is axisymmetric about a centerline of the inner vessel 12 .
- the protrusion 25 includes a first part 27 and a connector 30 .
- the first part 27 protrudes from the interior facing surface 26 such that the first part 27 is axisymmetric about the centerline of the inner vessel 12 .
- the connector 30 has a first end 31 , which is configured to be fastened by, for example, welding to a distal end of the protrusion 25 perimetrically about the injection hole location 200 , and a second end 32 .
- the first end 31 and the second end 32 supportively meet at bend 33 , which may be angular or curved, such that the second end 32 defines a secondary injection hole location 201 , which may correspond to the injection hole location 200 .
- the injection hole location 200 and the secondary injection hole location 201 may be round or, in some cases, substantially circular.
- the protrusion 25 , the connector 30 and the tubular body 40 may also have round or, in some cases, substantially circular cross-sections (i.e., they may be ring-shaped) in correspondence with the shape of the injection hole location 200 and the secondary injection hole location 201 .
- the tubular body 40 has sufficient length to extend across an annulus defined between the outer vessel 11 and the inner vessel 12 and has an interior facing surface 41 that is formed to define a tubular injection hole 400 .
- the tubular body 40 is sealably fastened to the first surface 21 of the annular base 20 at the injection hole location 200 by way of, for example, bolt 42 that engages with the annular base 20 .
- the tubular body 40 also has a protrusion 45 that may be sealably fastened to the second end 32 of the connector 30 at the secondary injection hole location 201 .
- Seals 46 such as o-rings or c-seals, may be sealably disposed between the tubular body 40 and the first surface 21 and between the protrusion 45 and the second end 32 of the connector 30 .
- the tubular injection hole 400 permits fluid communication between an exterior of the outer vessel 11 and the main flowpath 120 .
- the tubular body 40 may include a flange 47 .
- the annular base 20 may include an exterior facing surface 28 that faces radially outwardly and away from the main flowpath 120 .
- This exterior facing surface 28 may have a fastening surface 280 formed thereon at the injection hole location 200 where the exterior facing surface 28 is machined to be flat and/or smooth and therefore configured for mating with the flange 47 .
- bolt 42 is employed to fasten the tubular body 40 to the annular base 20 , the bolt 42 extends through both the flange 47 and the fastening surface 280 of the exterior facing surface 28 .
- the tubular body 40 , the connector 30 , the protrusion 25 and the annular base 20 may cooperatively define a plenum 50 .
- the tubular body 40 is further formed to define an additional injection hole 401 for permitting fluid communication between an interior of the plenum 50 and the tubular injection hole 400 .
- the additional injection hole 401 may be defined as a plurality of additional injection holes 401 , which are arrayed about the tubular injection hole 400 of the tubular body 40 at the plenum 50 . Separation between adjacent additional injection holes 401 may be uniform or non-uniform.
- the plenum 50 may be supplied with fuel and the exterior of the outer vessel 11 may include compressed air, such as compressor discharge air that is produced by a compressor of the turbomachine.
- the compressed air flows through the tubular injection hole 400 and entrains a flow of the fuel from the plenum 50 into the tubular injection hole 400 .
- the fuel is thereby mixed with the compressed air and injected into the main flowpath 120 as a fuel/air mixture.
- the injection apparatus 10 may be employed as part of an axially staged injection system of a turbomachine or, more particularly, as part of a late lean injection (LLI) system of the turbomachine.
- the fuel/air mixture may be lean such that combustion of the fuel/air mixture within the main flowpath 120 serves to reduce the production and subsequent emission of pollutants, such as oxides of nitrogen (NOx).
- NOx oxides of nitrogen
- the annulus defined between the outer vessel 11 and the inner vessel 12 is generally supported by support structures 60 , such as a-spacers arrayed about the inner vessel 12 .
- these support structures 60 may be disposed between an exterior facing surface of the inner vessel 12 and the interior facing surface 26 of the annular base 20 .
- the injection hole location 200 (and the accompanying structures as described above) may be provided as a plurality of injection hole locations 200 .
- the plural injection hole locations 200 may be arrayed about the outer vessel 11 and the inner vessel 12 as non-axisymmetric features. Separation between adjacent injection hole locations 200 may be uniform or non-uniform.
- four injection hole locations 200 may be clustered about respective lower portions of the outer vessel 11 and the inner vessel 12 .
Abstract
An injection apparatus is provided and includes an annular base defining an injection hole location and having a protrusion about the injection hole location and a tubular body formed to define an injection hole, the tubular body to be sealably fastened to the annular base and the protrusion at the injection hole location such that the tubular body and the protrusion cooperatively define a plenum such that the plenum is communicative with the injection hole.
Description
- The subject matter disclosed herein relates to an injection apparatus and, more particularly, to an injection apparatus for attachment to an outer vessel disposed about an inner vessel formed to define a main flowpath.
- A typical turbomachine, such as a gas turbine engine, includes a compressor, a combustor and a turbine. The compressor compresses inlet gas to produce compressed gas, which is transmitted to the combustor. Within the combustor, the compressed gas is mixed with fuel and combusted to produce high temperature fluids. These high temperature fluids are then directed to the turbine for power and/or electricity generation. In some cases, a transition piece may be disposed between the combustor and the turbine such that the high temperature fluids flow through the transition piece prior to entering the turbine.
- As a result of the process described above, pollutants, such as oxides of nitrogen (NOx) may be produced and emitted to the atmosphere. Recently, efforts have been undertaken to reduce pollutant production and emission. Such efforts include the development of axially staged fuel injection systems, such as late lean injection (LLI) systems. In LLI systems, a quantity of fuel and air are injected into the main flowpath through the combustor or the transition piece downstream of the main combustion zone.
- A problem with such systems, however, is that axially staged or LLI injectors must be integrally mounted to the transition piece, which is a complicated process that may lead to further assembly issues with the transition piece impingement sleeve.
- According to one aspect of the invention, an injection apparatus is provided and includes an annular base defining an injection hole location and having a protrusion about the injection hole location and a tubular body formed to define an injection hole, the tubular body to be sealably fastened to the annular base and the protrusion at the injection hole location such that the tubular body and the protrusion cooperatively define a plenum, which is communicative with the injection hole.
- According to another aspect of the invention, an injection apparatus for attachment to an outer vessel disposed about an inner vessel formed to define a main flowpath is provided. The injection apparatus includes an annular base to be fastened to the outer vessel, the annular base defining an injection hole location and having a protrusion about the injection hole location and a tubular body formed to define an injection hole, the tubular body to be sealably fastened to the annular base and the protrusion at the injection hole location such that the injection hole permits communication between an exterior of the outer vessel and the main flowpath and the tubular body and the protrusion cooperatively define a plenum, which is communicative with the injection hole.
- According to yet another aspect of the invention, an injection apparatus for attachment to an outer vessel disposed about an inner vessel formed to define a main flowpath is provided. The injection apparatus includes an annular base to be fastened to the outer vessel, the annular base defining injection hole locations and having protrusions about the injection hole locations and tubular bodies each formed to define an injection hole and each to be sealably fastened to the annular bases and the protrusions at each injection hole location such that at each injection hole location the corresponding one of the injection holes permits communication between an exterior of the outer vessel and the main flowpath and the corresponding one of the tubular bodies and the corresponding one of the protrusions cooperatively define a plenum. The corresponding one of the tubular bodies is further formed to define additional injection holes for communication between the plenum and the injection hole.
- These and other advantages and features will become more apparent from the following description taken in conjunction with the drawings.
- The subject matter, which is regarded as the invention, is particularly pointed out and distinctly claimed in the claims at the conclusion of the specification. The foregoing and other features, and advantages of the invention are apparent from the following detailed description taken in conjunction with the accompanying drawings in which the sole figure is:
- A schematic side view of an injection apparatus in accordance with embodiments.
- The detailed description explains embodiments of the invention, together with advantages and features, by way of example with reference to the drawings.
- With reference to the sole FIGURE, an
injection apparatus 10 is provided. Theinjection apparatus 10 is attachable to anouter vessel 11, such as an impingement sleeve or a flow sleeve of an exemplary turbomachine transition piece. Theouter vessel 11 may be disposed about aninner vessel 12, which may be the turbomachine transition piece and may be formed to define amain flowpath 120. During turbomachine operations, high temperature fluids are produced in a combustor and directed toward a turbine by way of the turbomachine transition piece. The flow of the high temperature fluids thus proceeds along themain flowpath 120 of theinner vessel 12. It is, however, to be understood that theinjection apparatus 10 may be attachable to other vessels in the turbomachine and/or other systems. As an alternate example, theinjection apparatus 10 may be attachable to a forward end of the impingement sleeve (i.e., proximate to the axial injection flow sleeve), the aft end of the impingement sleeve or to a flow sleeve of the combustor. - The
injection apparatus 10 includes a ring-shaped orannular base 20 and atubular body 40. Theannular base 20 is configured to be fastened to theouter vessel 11 by one or more of bolting, welding, sealing and butt welding. Theannular base 20 has afirst surface 21 that is formed to define aninjection hole location 200 and aprotrusion 25. Theprotrusion 25 protrudes from an interior facingsurface 26 of theannular base 20 and extends perimetrically about theinjection hole location 200 such that theprotrusion 25 is axisymmetric about a centerline of theinner vessel 12. Theprotrusion 25 includes afirst part 27 and aconnector 30. Thefirst part 27 protrudes from theinterior facing surface 26 such that thefirst part 27 is axisymmetric about the centerline of theinner vessel 12. Theconnector 30 has afirst end 31, which is configured to be fastened by, for example, welding to a distal end of theprotrusion 25 perimetrically about theinjection hole location 200, and asecond end 32. Thefirst end 31 and thesecond end 32 supportively meet atbend 33, which may be angular or curved, such that thesecond end 32 defines a secondaryinjection hole location 201, which may correspond to theinjection hole location 200. - In accordance with embodiments, the
injection hole location 200 and the secondaryinjection hole location 201 may be round or, in some cases, substantially circular. Similarly, theprotrusion 25, theconnector 30 and thetubular body 40 may also have round or, in some cases, substantially circular cross-sections (i.e., they may be ring-shaped) in correspondence with the shape of theinjection hole location 200 and the secondaryinjection hole location 201. - The
tubular body 40 has sufficient length to extend across an annulus defined between theouter vessel 11 and theinner vessel 12 and has an interior facingsurface 41 that is formed to define atubular injection hole 400. Thetubular body 40 is sealably fastened to thefirst surface 21 of theannular base 20 at theinjection hole location 200 by way of, for example,bolt 42 that engages with theannular base 20. Thetubular body 40 also has aprotrusion 45 that may be sealably fastened to thesecond end 32 of theconnector 30 at the secondaryinjection hole location 201.Seals 46, such as o-rings or c-seals, may be sealably disposed between thetubular body 40 and thefirst surface 21 and between theprotrusion 45 and thesecond end 32 of theconnector 30. Thetubular injection hole 400 permits fluid communication between an exterior of theouter vessel 11 and themain flowpath 120. - In accordance with embodiments, at an inlet end of the
tubular body 40, thetubular body 40 may include aflange 47. Theannular base 20 may include an exterior facingsurface 28 that faces radially outwardly and away from themain flowpath 120. This exterior facingsurface 28 may have afastening surface 280 formed thereon at theinjection hole location 200 where theexterior facing surface 28 is machined to be flat and/or smooth and therefore configured for mating with theflange 47. Wherebolt 42 is employed to fasten thetubular body 40 to theannular base 20, thebolt 42 extends through both theflange 47 and thefastening surface 280 of theexterior facing surface 28. - The
tubular body 40, theconnector 30, theprotrusion 25 and theannular base 20 may cooperatively define aplenum 50. Thetubular body 40 is further formed to define anadditional injection hole 401 for permitting fluid communication between an interior of theplenum 50 and thetubular injection hole 400. Theadditional injection hole 401 may be defined as a plurality ofadditional injection holes 401, which are arrayed about thetubular injection hole 400 of thetubular body 40 at theplenum 50. Separation between adjacentadditional injection holes 401 may be uniform or non-uniform. - Where the
injection apparatus 10 is attachable to an impingement sleeve or another similar feature of a turbomachine, theplenum 50 may be supplied with fuel and the exterior of theouter vessel 11 may include compressed air, such as compressor discharge air that is produced by a compressor of the turbomachine. In these cases, the compressed air flows through thetubular injection hole 400 and entrains a flow of the fuel from theplenum 50 into thetubular injection hole 400. The fuel is thereby mixed with the compressed air and injected into themain flowpath 120 as a fuel/air mixture. As such, theinjection apparatus 10 may be employed as part of an axially staged injection system of a turbomachine or, more particularly, as part of a late lean injection (LLI) system of the turbomachine. In the latter case, the fuel/air mixture may be lean such that combustion of the fuel/air mixture within themain flowpath 120 serves to reduce the production and subsequent emission of pollutants, such as oxides of nitrogen (NOx). - The annulus defined between the
outer vessel 11 and theinner vessel 12 is generally supported bysupport structures 60, such as a-spacers arrayed about theinner vessel 12. In accordance with embodiments, thesesupport structures 60 may be disposed between an exterior facing surface of theinner vessel 12 and the interior facingsurface 26 of theannular base 20. - In accordance with aspects of the invention, the injection hole location 200 (and the accompanying structures as described above) may be provided as a plurality of
injection hole locations 200. In these cases, the pluralinjection hole locations 200 may be arrayed about theouter vessel 11 and theinner vessel 12 as non-axisymmetric features. Separation between adjacentinjection hole locations 200 may be uniform or non-uniform. In accordance with an exemplary embodiment, fourinjection hole locations 200 may be clustered about respective lower portions of theouter vessel 11 and theinner vessel 12. - While the invention has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the invention is not limited to such disclosed embodiments. Rather, the invention can be modified to incorporate any number of variations, alterations, substitutions or equivalent arrangements not heretofore described, but which are commensurate with the spirit and scope of the invention. Additionally, while various embodiments of the invention have been described, it is to be understood that aspects of the invention may include only some of the described embodiments. Accordingly, the invention is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.
Claims (20)
1. An injection apparatus, comprising:
an annular base defining an injection hole location and having a protrusion about the injection hole location; and
a tubular body formed to define an injection hole, the tubular body to be sealably fastened to the annular base and the protrusion at the injection hole location such that:
the tubular body and the protrusion cooperatively define a plenum, which is communicative with the injection hole.
2. The injection apparatus according to claim 1 , wherein the annular base includes an exterior facing surface having a fastening surface formed thereon at the injection hole location.
3. The injection apparatus according to claim 1 , further comprising seals disposed between the tubular body and the annular base and between the tubular body and the protrusion.
4. An injection apparatus for attachment to an outer vessel disposed about an inner vessel formed to define a main flowpath, the injection apparatus comprising:
an annular base to be fastened to the outer vessel, the annular base defining an injection hole location and having a protrusion about the injection hole location; and
a tubular body formed to define an injection hole, the tubular body to be sealably fastened to the annular base and the protrusion at the injection hole location such that:
the injection hole permits communication between an exterior of the outer vessel and the main flowpath and the tubular body and the protrusion cooperatively define a plenum, which is communicative with the injection hole.
5. The injection apparatus according to claim 4 , wherein the outer vessel comprises an impingement sleeve of a turbomachine transition piece.
6. The injection apparatus according to claim 4 , wherein the plenum is supplied with fuel and the exterior of the outer vessel comprises compressed air.
7. The injection apparatus according to claim 4 , wherein the annular base is fastened to the outer vessel by one or more of bolting, welding, sealing and butt welding.
8. The injection apparatus according to claim 4 , wherein the annular base includes an exterior facing surface having a fastening surface formed thereon at the injection hole location.
9. The injection apparatus according to claim 4 , further comprising support structures to support the annular base on the inner vessel.
10. The injection apparatus according to claim 4 , further comprising seals disposed between the tubular body and the annular base and between the tubular body and the protrusion.
11. An injection apparatus for attachment to an outer vessel disposed about an inner vessel formed to define a main flowpath, the injection apparatus comprising:
an annular base to be fastened to the outer vessel, the annular base defining injection hole locations and having protrusions about the injection hole locations; and
tubular bodies each formed to define an injection hole and each to be sealably fastened to the annular base and the protrusions at each injection hole location such that at each injection hole location:
the corresponding one of the injection holes permits communication between an exterior of the outer vessel and the main flowpath and the corresponding one of the tubular bodies and the corresponding one of the protrusions cooperatively define a plenum,
the corresponding one of the tubular bodies being further formed to define additional injection holes for communication between the plenum and the injection hole.
12. The injection apparatus according to claim 11 , wherein the outer vessel comprises an impingement sleeve of a turbomachine transition piece.
13. The injection apparatus according to claim 11 , wherein the plenum is supplied with fuel and the exterior of the outer vessel comprises compressed air.
14. The injection apparatus according to claim 11 , wherein the annular base is fastened to the outer vessel by one or more of bolting, welding, sealing and butt welding.
15. The injection apparatus according to claim 11 , wherein the annular base includes an exterior facing surface having a fastening surface formed thereon at the injection hole location.
16. The injection apparatus according to claim 11 , further comprising support structures to support the annular base on the inner vessel.
17. The injection apparatus according to claim 11 , further comprising seals disposed between the tubular bodies and the annular base and between the tubular bodies and the protrusions.
18. The injection apparatus according to claim 11 , wherein the injection hole locations are non-uniformly separated from one another.
19. The injection apparatus according to claim 11 , wherein the injection hole locations are clustered.
20. The injection apparatus according to claim 11 , wherein the additional injection holes for each corresponding tubular body are arrayed about a circumference of the injection hole defined by the corresponding tubular body.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US13/286,744 US20130104553A1 (en) | 2011-11-01 | 2011-11-01 | Injection apparatus |
EP12190273.8A EP2589875B1 (en) | 2011-11-01 | 2012-10-26 | injection Apparatus |
CN201210431695XA CN103090412A (en) | 2011-11-01 | 2012-11-01 | Injection apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/286,744 US20130104553A1 (en) | 2011-11-01 | 2011-11-01 | Injection apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130104553A1 true US20130104553A1 (en) | 2013-05-02 |
Family
ID=47172421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/286,744 Abandoned US20130104553A1 (en) | 2011-11-01 | 2011-11-01 | Injection apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130104553A1 (en) |
EP (1) | EP2589875B1 (en) |
CN (1) | CN103090412A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140069103A1 (en) * | 2012-09-13 | 2014-03-13 | General Electric Company | Seal for use between injector and combustion chamber in gas turbine |
CN104515147A (en) * | 2013-08-20 | 2015-04-15 | 通用电气公司 | Pulse width modulation for control of late lean liquid injection velocity |
US20160047317A1 (en) * | 2014-08-14 | 2016-02-18 | General Electric Company | Fuel injector assemblies in combustion turbine engines |
US20170268783A1 (en) * | 2016-03-15 | 2017-09-21 | General Electric Company | Axially staged fuel injector assembly mounting |
US20190178496A1 (en) * | 2017-12-11 | 2019-06-13 | General Electric Company | Thimble assemblies for introducing a cross-flow into a secondary combustion zone |
US11112115B2 (en) | 2013-08-30 | 2021-09-07 | Raytheon Technologies Corporation | Contoured dilution passages for gas turbine engine combustor |
US11137144B2 (en) | 2017-12-11 | 2021-10-05 | General Electric Company | Axial fuel staging system for gas turbine combustors |
EP4063734A1 (en) * | 2021-03-26 | 2022-09-28 | Raytheon Technologies Corporation | Modular injector bolt for an engine |
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FR2919672B1 (en) * | 2007-07-30 | 2014-02-14 | Snecma | FUEL INJECTOR IN A TURBOMACHINE COMBUSTION CHAMBER |
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US8701383B2 (en) * | 2009-01-07 | 2014-04-22 | General Electric Company | Late lean injection system configuration |
-
2011
- 2011-11-01 US US13/286,744 patent/US20130104553A1/en not_active Abandoned
-
2012
- 2012-10-26 EP EP12190273.8A patent/EP2589875B1/en not_active Not-in-force
- 2012-11-01 CN CN201210431695XA patent/CN103090412A/en active Pending
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US20010049932A1 (en) * | 1996-05-02 | 2001-12-13 | Beebe Kenneth W. | Premixing dry low NOx emissions combustor with lean direct injection of gas fuel |
US7000396B1 (en) * | 2004-09-02 | 2006-02-21 | General Electric Company | Concentric fixed dilution and variable bypass air injection for a combustor |
US7665309B2 (en) * | 2007-09-14 | 2010-02-23 | Siemens Energy, Inc. | Secondary fuel delivery system |
US8261554B2 (en) * | 2008-09-17 | 2012-09-11 | General Electric Company | Fuel nozzle tip assembly |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140069103A1 (en) * | 2012-09-13 | 2014-03-13 | General Electric Company | Seal for use between injector and combustion chamber in gas turbine |
US9097130B2 (en) * | 2012-09-13 | 2015-08-04 | General Electric Company | Seal for use between injector and combustion chamber in gas turbine |
CN104515147A (en) * | 2013-08-20 | 2015-04-15 | 通用电气公司 | Pulse width modulation for control of late lean liquid injection velocity |
US11112115B2 (en) | 2013-08-30 | 2021-09-07 | Raytheon Technologies Corporation | Contoured dilution passages for gas turbine engine combustor |
US20160047317A1 (en) * | 2014-08-14 | 2016-02-18 | General Electric Company | Fuel injector assemblies in combustion turbine engines |
US20170268783A1 (en) * | 2016-03-15 | 2017-09-21 | General Electric Company | Axially staged fuel injector assembly mounting |
US20190178496A1 (en) * | 2017-12-11 | 2019-06-13 | General Electric Company | Thimble assemblies for introducing a cross-flow into a secondary combustion zone |
JP2019105438A (en) * | 2017-12-11 | 2019-06-27 | ゼネラル・エレクトリック・カンパニイ | Thimble assembly for introducing cross-flow into secondary combustion zone |
US10816203B2 (en) * | 2017-12-11 | 2020-10-27 | General Electric Company | Thimble assemblies for introducing a cross-flow into a secondary combustion zone |
US11137144B2 (en) | 2017-12-11 | 2021-10-05 | General Electric Company | Axial fuel staging system for gas turbine combustors |
JP7242277B2 (en) | 2017-12-11 | 2023-03-20 | ゼネラル・エレクトリック・カンパニイ | Thimble assembly for introducing cross-flow into the secondary combustion zone |
EP4063734A1 (en) * | 2021-03-26 | 2022-09-28 | Raytheon Technologies Corporation | Modular injector bolt for an engine |
Also Published As
Publication number | Publication date |
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CN103090412A (en) | 2013-05-08 |
EP2589875B1 (en) | 2014-12-10 |
EP2589875A1 (en) | 2013-05-08 |
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