US20110244410A1 - Pilot system for combustors - Google Patents
Pilot system for combustors Download PDFInfo
- Publication number
- US20110244410A1 US20110244410A1 US12/749,766 US74976610A US2011244410A1 US 20110244410 A1 US20110244410 A1 US 20110244410A1 US 74976610 A US74976610 A US 74976610A US 2011244410 A1 US2011244410 A1 US 2011244410A1
- Authority
- US
- United States
- Prior art keywords
- channel
- fuel
- pilot
- inlet
- nozzle
- 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
- F23R3/343—Pilot flames, i.e. fuel nozzles or injectors using only a very small proportion of the total fuel to insure continuous combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/00008—Burner assemblies with diffusion and premix modes, i.e. dual mode burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/00015—Pilot burners specially adapted for low load or transient conditions, e.g. for increasing stability
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14004—Special features of gas burners with radially extending gas distribution spokes
Definitions
- the subject matter disclosed herein relates to combustor and, in particular, to providing pilot fuel to a secondary fuel nozzle.
- Gas turbine engines for generating electricity may include dual-stage dual-mode combustors. These combustors may include a first stage combustion chamber and a second stage combustion chamber interconnected by a throat region. Each chamber may include one or more fuel nozzles. Depending on the mode of operation, combustion may occur in the first stage combustion chamber, the second stage combustion chamber, or in both chambers. When combustion occurs in the second chamber, the fuel injected from nozzles disposed at or near the throat region mixes with air in the first chamber prior to ignition in second chamber. A fuel nozzle disposed in the region near the secondary combustion chamber shall be referred to herein as a “secondary fuel nozzle.”
- pilot flame at a distal end of a secondary fuel nozzle may provide advantages in combustor operation.
- the pilot flame is produced by a pilot system integrated with the secondary fuel nozzle.
- the pilot system usually receives fuel from the secondary fuel supply through a jumper conduit that is outside the combustion system. Such a connection causes additional pieces to be added to the system and, consequently, reduces durability while raising costs.
- a secondary nozzle for a combustor includes a feed nozzle having center channel surrounded by a fuel channel and a pilot channel.
- the secondary nozzle of this aspect also includes a housing that surrounds at least a portion of the feed nozzle and includes a fuel inlet channel in a first plane and pilot inlet feed channel in a second plane different than the first plane.
- the fuel inlet channel and the pilot inlet feed channel are interconnected to one another within the housing.
- a method of providing fuel to a pilot location of a nozzle that includes a housing having a fuel inlet coupled and a feed nozzle partially surrounded by the housing and having a fuel channel coupled to the fuel inlet and a pilot channel separate from the fuel channel is provided.
- the method of this embodiment includes providing fuel to the fuel inlet and diverting, through the housing, a portion of the fuel from the fuel inlet to the pilot channel.
- combustor that includes a combustion chamber and a secondary nozzle coupled to and at least partially within the combustion chamber.
- the secondary nozzle includes a feed nozzle having center channel surrounded by a fuel channel and a pilot channel and a housing that surrounds at least a portion of the feed nozzle and includes a fuel inlet channel in a first plane and pilot inlet feed channel in a second plane different than the first plane.
- the fuel inlet channel and the pilot inlet feed channel are interconnected to one another within the housing.
- FIG. 1 shows an example of secondary nozzle according to one embodiment of the present invention
- FIG. 2 shows a cut-away side-view of the secondary nozzle shown in FIG. 1 ;
- FIG. 3 shows another cut-away side-view of the secondary nozzle of FIG. 1 ;
- FIG. 1 shows an example of secondary nozzle 100 according to one embodiment of the present invention.
- the secondary nozzle 100 may be inserted into a combustion chamber such that the distal end 102 of the feed nozzle 104 is at or near a throat region of a dual stage combustion chamber. It shall be understood that while the description herein applies generally to a secondary nozzle, they may be applied to any combustor nozzle. Accordingly, hereinafter the term nozzle shall be used and includes either a primary or secondary nozzle.
- the secondary nozzle 100 includes a housing 106 .
- the housing may be external to the combustor.
- the housing 106 includes a fuel inlet 108 . Fuel received at the fuel inlet 108 is delivered through internal connections in the feed nozzle 104 to fuel pegs 110 . Of course, some embodiments may not include fuel pegs 110 . In such an embodiment, the fuel may be delivered to the distal end 102 via the feed nozzle 104 .
- pilot feed hole 112 was included in prior art secondary nozzles.
- the present invention may also include such a feed hole but, in one embodiment, the pilot feed hole is omitted or plugged.
- the pilot feed hole 112 was coupled to the secondary fuel supply and metered as required. As discussed above, such coupling was external to the housing and added additional expense and complexity.
- pilot fuel is provided to a pilot channel (not shown) within the feed nozzle 104 by a connection between the fuel inlet 108 and the pilot fuel transmission channel that is within the housing 106 .
- the teachings herein may be applied, in one embodiment, to a housing of the prior art or may, in one embodiment, be created as an initial work piece.
- the fuel inlet 108 is on a first face 114 of the housing 106 and the pilot feed hole 112 is on a second face 116 of the housing 106 . Both holes travel toward the center of the housing 106 and provide fuel to portions of the feed nozzle 104 for delivery to downstream portions thereof. It shall be understood that, in one embodiment, the pilot feed hole 112 and the fuel inlet 108 are in different planes.
- FIG. 2 shows a cut-away side-view of the secondary nozzle 100 of FIG. 1 taken in a plane perpendicular to the second face 116 .
- the nozzle 100 includes a housing 106 and a feed nozzle 104 .
- the housing 106 surrounds a portion of the feed nozzle 104 .
- FIG. 2 an example of a surrounded portion is shown by reference numeral 200 .
- the housing 106 may include the pilot feed hole 112 .
- the pilot feed hole 112 allowed pilot fuel to be introduced to the pilot inlet feed channel 202 .
- Fuel introduced to the pilot inlet feed channel 202 is received in a pilot receiving ring 204 .
- Fuel introduced to the pilot receiving ring 204 travels down a pilot channel 206 portion of the feed nozzle 104 to a pilot location (not shown).
- the housing 106 may also include the fuel inlet 108 that, via fuel inlet channel 208 , provides fuel to the fuel ring 210 .
- the fuel inlet channel 208 is shown in dotted lines indicating that it is in different plane than the pilot inlet feed channel 202 (as well as other housing-based channels shown in FIG. 2 ).
- Fuel introduced to the fuel ring 204 travels down a fuel channel 212 portion of the feed nozzle 104 to a fuel introduction location (not shown) where it is introduced to a combustion chamber when in operation.
- the fuel channel 212 and the pilot channel 206 are, in one embodiment, concentric and both surround a center channel 214 .
- the ordering and location of the fuel channel 212 and the pilot channel 206 is variable and not constrained to those shown in FIG. 2 .
- the fuel channel 212 and the pilot channel 206 may be separated from one another by a lip seal 220 .
- the pilot inlet feed channel 202 may be coupled within the housing 106 to the fuel ring 210 .
- fuel introduced to the fuel ring 210 may be used to supply the pilot channel 206 .
- This internal coupling may allow for external conduit for supplying the pilot inlet feed channel 202 to be omitted.
- the housing 106 may include internal passages that connect the fuel ring 210 to the pilot inlet feed channel 202 .
- the internal passages that connect the fuel ring 210 to the pilot inlet feed channel 202 in FIG. 2 are shown as first passage 230 and second passage 232 .
- the first passage 230 travels from the second face 116 to the fuel ring 210 .
- the first passage 230 is in a different plane than the fuel channel 212 .
- the first passage 230 may be formed by drilling into the second face 216 until the fuel ring 210 is reached.
- the second passage 232 travels from the proximal end 234 of the housing 106 , through the pilot inlet feed channel 202 , to the first passage 230 .
- the second passage 232 is in the same plane and the first passage 230 .
- first passage 230 is plugged with a first plug 240 and the second passage 232 is plugged with a second plug.
- the plugs may be threaded plugs in one embodiment.
- other means of plugging the first passage 230 and the second passage 232 may be utilized within the scope of the present invention.
- fuel is provided through the fuel inlet channel 208 to the fuel ring 210 .
- From the fuel ring 210 at least a portion of the fuel travels, as indicated by arrow A, along fuel channel 212 .
- Another portion of the fuel travels along the path shown by arrows B, C, and D, from the fuel ring 210 , thought the first passage 230 , the second passage 232 and the pilot inlet feed channel 202 to the pilot receiving ring 204 .
- the fuel travels down the pilot channel 206 .
- the pilot inlet feed channel 202 may be plugged at one end.
- the pilot inlet feed channel 202 is plugged with a blank flange 240 .
- FIG. 3 shows a cut-away side-view of the secondary nozzle 100 of FIG. 1 taken in a plane perpendicular to the second face 116 .
- the pilot inlet feed channel 202 includes a flow control device 302 disposed therein.
- the flow control device 302 may be a pre-orifice with a c-seal. Such a pre-orifice may be used to reduce flow variation and may include a hat screen to protect the pilot receiving ring 204 from debris.
- the flow control device 302 may be removed and replaced with a pre-orifice having a smaller or larger internal passageway in order to vary the flow split between the main fuel inlet channel 212 and the pilot channel 206 204 .
- the nozzle 100 disclosed herein may utilized in a combustor. Accordingly, one embodiment of the present includes a combustor combined that includes a nozzle 100 as disclosed herein. In one embodiment, the feed nozzle 104 may have a portion that extends into the combustor while in operation.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
- Gas Burners (AREA)
Abstract
Description
- The subject matter disclosed herein relates to combustor and, in particular, to providing pilot fuel to a secondary fuel nozzle.
- Gas turbine engines for generating electricity may include dual-stage dual-mode combustors. These combustors may include a first stage combustion chamber and a second stage combustion chamber interconnected by a throat region. Each chamber may include one or more fuel nozzles. Depending on the mode of operation, combustion may occur in the first stage combustion chamber, the second stage combustion chamber, or in both chambers. When combustion occurs in the second chamber, the fuel injected from nozzles disposed at or near the throat region mixes with air in the first chamber prior to ignition in second chamber. A fuel nozzle disposed in the region near the secondary combustion chamber shall be referred to herein as a “secondary fuel nozzle.”
- It has been discovered that provision of a pilot flame at a distal end of a secondary fuel nozzle may provide advantages in combustor operation. The pilot flame is produced by a pilot system integrated with the secondary fuel nozzle. The pilot system usually receives fuel from the secondary fuel supply through a jumper conduit that is outside the combustion system. Such a connection causes additional pieces to be added to the system and, consequently, reduces durability while raising costs.
- According to one aspect of the invention, a secondary nozzle for a combustor is provided. The secondary nozzle of this aspect includes a feed nozzle having center channel surrounded by a fuel channel and a pilot channel. The secondary nozzle of this aspect also includes a housing that surrounds at least a portion of the feed nozzle and includes a fuel inlet channel in a first plane and pilot inlet feed channel in a second plane different than the first plane. In this aspect, the fuel inlet channel and the pilot inlet feed channel are interconnected to one another within the housing.
- According to another aspect of the invention, a method of providing fuel to a pilot location of a nozzle that includes a housing having a fuel inlet coupled and a feed nozzle partially surrounded by the housing and having a fuel channel coupled to the fuel inlet and a pilot channel separate from the fuel channel is provided. The method of this embodiment includes providing fuel to the fuel inlet and diverting, through the housing, a portion of the fuel from the fuel inlet to the pilot channel.
- According to yet another aspect of the invention, combustor that includes a combustion chamber and a secondary nozzle coupled to and at least partially within the combustion chamber is provided. In this aspect, the secondary nozzle includes a feed nozzle having center channel surrounded by a fuel channel and a pilot channel and a housing that surrounds at least a portion of the feed nozzle and includes a fuel inlet channel in a first plane and pilot inlet feed channel in a second plane different than the first plane. The fuel inlet channel and the pilot inlet feed channel are interconnected to one another within the housing.
- 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:
-
FIG. 1 shows an example of secondary nozzle according to one embodiment of the present invention; -
FIG. 2 shows a cut-away side-view of the secondary nozzle shown inFIG. 1 ; and -
FIG. 3 shows another cut-away side-view of the secondary nozzle ofFIG. 1 ; - The detailed description explains embodiments of the invention, together with advantages and features, by way of example with reference to the drawings.
-
FIG. 1 shows an example ofsecondary nozzle 100 according to one embodiment of the present invention. Thesecondary nozzle 100 may be inserted into a combustion chamber such that thedistal end 102 of thefeed nozzle 104 is at or near a throat region of a dual stage combustion chamber. It shall be understood that while the description herein applies generally to a secondary nozzle, they may be applied to any combustor nozzle. Accordingly, hereinafter the term nozzle shall be used and includes either a primary or secondary nozzle. - The
secondary nozzle 100 includes ahousing 106. When thesecondary nozzle 100 is coupled to a combustor, the housing may be external to the combustor. In one embodiment, thehousing 106 includes afuel inlet 108. Fuel received at thefuel inlet 108 is delivered through internal connections in thefeed nozzle 104 tofuel pegs 110. Of course, some embodiments may not includefuel pegs 110. In such an embodiment, the fuel may be delivered to thedistal end 102 via thefeed nozzle 104. - It has been discovered that, during operation, it may be beneficial to provide a pilot flame at the
distal end 102 of thefeed nozzle 104. To that end, prior art secondary nozzles may have included apilot feed hole 112. The present invention may also include such a feed hole but, in one embodiment, the pilot feed hole is omitted or plugged. In the prior art, thepilot feed hole 112 was coupled to the secondary fuel supply and metered as required. As discussed above, such coupling was external to the housing and added additional expense and complexity. - According to one embodiment of the present invention, pilot fuel is provided to a pilot channel (not shown) within the
feed nozzle 104 by a connection between thefuel inlet 108 and the pilot fuel transmission channel that is within thehousing 106. The teachings herein may be applied, in one embodiment, to a housing of the prior art or may, in one embodiment, be created as an initial work piece. - In
FIG. 1 , thefuel inlet 108 is on afirst face 114 of thehousing 106 and thepilot feed hole 112 is on asecond face 116 of thehousing 106. Both holes travel toward the center of thehousing 106 and provide fuel to portions of thefeed nozzle 104 for delivery to downstream portions thereof. It shall be understood that, in one embodiment, thepilot feed hole 112 and thefuel inlet 108 are in different planes. -
FIG. 2 shows a cut-away side-view of thesecondary nozzle 100 ofFIG. 1 taken in a plane perpendicular to thesecond face 116. Thenozzle 100 includes ahousing 106 and afeed nozzle 104. In one embodiment, thehousing 106 surrounds a portion of thefeed nozzle 104. InFIG. 2 , an example of a surrounded portion is shown byreference numeral 200. - The
housing 106 may include thepilot feed hole 112. Thepilot feed hole 112, as implemented in the prior art, allowed pilot fuel to be introduced to the pilotinlet feed channel 202. Fuel introduced to the pilotinlet feed channel 202 is received in apilot receiving ring 204. Fuel introduced to thepilot receiving ring 204 travels down apilot channel 206 portion of thefeed nozzle 104 to a pilot location (not shown). - The
housing 106 may also include thefuel inlet 108 that, viafuel inlet channel 208, provides fuel to thefuel ring 210. Thefuel inlet channel 208 is shown in dotted lines indicating that it is in different plane than the pilot inlet feed channel 202 (as well as other housing-based channels shown inFIG. 2 ). Fuel introduced to thefuel ring 204 travels down afuel channel 212 portion of thefeed nozzle 104 to a fuel introduction location (not shown) where it is introduced to a combustion chamber when in operation. - The
fuel channel 212 and thepilot channel 206 are, in one embodiment, concentric and both surround acenter channel 214. The ordering and location of thefuel channel 212 and thepilot channel 206 is variable and not constrained to those shown inFIG. 2 . As shown inFIG. 2 , thefuel channel 212 and thepilot channel 206 may be separated from one another by alip seal 220. - According to one embodiment, the pilot
inlet feed channel 202 may be coupled within thehousing 106 to thefuel ring 210. In this manner, fuel introduced to thefuel ring 210 may be used to supply thepilot channel 206. This internal coupling may allow for external conduit for supplying the pilotinlet feed channel 202 to be omitted. To this end, thehousing 106 may include internal passages that connect thefuel ring 210 to the pilotinlet feed channel 202. - The internal passages that connect the
fuel ring 210 to the pilotinlet feed channel 202 inFIG. 2 are shown asfirst passage 230 andsecond passage 232. Thefirst passage 230 travels from thesecond face 116 to thefuel ring 210. In one embodiment, thefirst passage 230 is in a different plane than thefuel channel 212. In one embodiment, thefirst passage 230 may be formed by drilling into the second face 216 until thefuel ring 210 is reached. Thesecond passage 232 travels from theproximal end 234 of thehousing 106, through the pilotinlet feed channel 202, to thefirst passage 230. In one embodiment, thesecond passage 232 is in the same plane and thefirst passage 230. In one embodiment, thefirst passage 230 is plugged with afirst plug 240 and thesecond passage 232 is plugged with a second plug. The plugs may be threaded plugs in one embodiment. Of course, other means of plugging thefirst passage 230 and thesecond passage 232 may be utilized within the scope of the present invention. - In operation, fuel is provided through the
fuel inlet channel 208 to thefuel ring 210. From thefuel ring 210 at least a portion of the fuel travels, as indicated by arrow A, alongfuel channel 212. Another portion of the fuel travels along the path shown by arrows B, C, and D, from thefuel ring 210, thought thefirst passage 230, thesecond passage 232 and the pilotinlet feed channel 202 to thepilot receiving ring 204. From thepilot receiving ring 204 the fuel travels down thepilot channel 206. In one embodiment, the pilotinlet feed channel 202 may be plugged at one end. In one embodiment, the pilotinlet feed channel 202 is plugged with ablank flange 240. -
FIG. 3 shows a cut-away side-view of thesecondary nozzle 100 ofFIG. 1 taken in a plane perpendicular to thesecond face 116. In this view, the pilotinlet feed channel 202 includes aflow control device 302 disposed therein. Theflow control device 302 may be a pre-orifice with a c-seal. Such a pre-orifice may be used to reduce flow variation and may include a hat screen to protect thepilot receiving ring 204 from debris. In operation, theflow control device 302 may be removed and replaced with a pre-orifice having a smaller or larger internal passageway in order to vary the flow split between the mainfuel inlet channel 212 and thepilot channel 206 204. - It shall be understood that the
nozzle 100 disclosed herein may utilized in a combustor. Accordingly, one embodiment of the present includes a combustor combined that includes anozzle 100 as disclosed herein. In one embodiment, thefeed nozzle 104 may have a portion that extends into the combustor while in operation. - 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 (17)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/749,766 US20110244410A1 (en) | 2010-03-30 | 2010-03-30 | Pilot system for combustors |
EP11159915A EP2375165A1 (en) | 2010-03-30 | 2011-03-25 | Pilot system for combustors |
JP2011066914A JP2011208933A (en) | 2010-03-30 | 2011-03-25 | Pilot system for combustor |
CN2011100863568A CN102207287A (en) | 2010-03-30 | 2011-03-29 | Pilot system for combustors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/749,766 US20110244410A1 (en) | 2010-03-30 | 2010-03-30 | Pilot system for combustors |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110244410A1 true US20110244410A1 (en) | 2011-10-06 |
Family
ID=44223335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/749,766 Abandoned US20110244410A1 (en) | 2010-03-30 | 2010-03-30 | Pilot system for combustors |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110244410A1 (en) |
EP (1) | EP2375165A1 (en) |
JP (1) | JP2011208933A (en) |
CN (1) | CN102207287A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170268786A1 (en) * | 2016-03-18 | 2017-09-21 | General Electric Company | Axially staged fuel injector assembly |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6282904B1 (en) * | 1999-11-19 | 2001-09-04 | Power Systems Mfg., Llc | Full ring fuel distribution system for a gas turbine combustor |
US6857271B2 (en) * | 2002-12-16 | 2005-02-22 | Power Systems Mfg., Llc | Secondary fuel nozzle with readily customizable pilot fuel flow rate |
US7059541B2 (en) * | 2004-01-15 | 2006-06-13 | Harris Research, Inc. | Fluid mixing block |
US20070151255A1 (en) * | 2006-01-04 | 2007-07-05 | General Electric Company | Combustion turbine engine and methods of assembly |
DE102008002934A1 (en) * | 2007-07-26 | 2009-01-29 | General Electric Co. | Secondary fuel nozzle arrangement for use in gas-turbine engine, has nozzle section with central passage and passages, and head section with set of inlets in flow-connection with nozzle passages |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7854121B2 (en) * | 2005-12-12 | 2010-12-21 | General Electric Company | Independent pilot fuel control in secondary fuel nozzle |
JP4220558B2 (en) * | 2007-04-05 | 2009-02-04 | 川崎重工業株式会社 | Combustion device for gas turbine engine |
US7908863B2 (en) * | 2008-02-12 | 2011-03-22 | General Electric Company | Fuel nozzle for a gas turbine engine and method for fabricating the same |
-
2010
- 2010-03-30 US US12/749,766 patent/US20110244410A1/en not_active Abandoned
-
2011
- 2011-03-25 JP JP2011066914A patent/JP2011208933A/en not_active Withdrawn
- 2011-03-25 EP EP11159915A patent/EP2375165A1/en not_active Withdrawn
- 2011-03-29 CN CN2011100863568A patent/CN102207287A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6282904B1 (en) * | 1999-11-19 | 2001-09-04 | Power Systems Mfg., Llc | Full ring fuel distribution system for a gas turbine combustor |
US6857271B2 (en) * | 2002-12-16 | 2005-02-22 | Power Systems Mfg., Llc | Secondary fuel nozzle with readily customizable pilot fuel flow rate |
US7059541B2 (en) * | 2004-01-15 | 2006-06-13 | Harris Research, Inc. | Fluid mixing block |
US20070151255A1 (en) * | 2006-01-04 | 2007-07-05 | General Electric Company | Combustion turbine engine and methods of assembly |
DE102008002934A1 (en) * | 2007-07-26 | 2009-01-29 | General Electric Co. | Secondary fuel nozzle arrangement for use in gas-turbine engine, has nozzle section with central passage and passages, and head section with set of inlets in flow-connection with nozzle passages |
US20090223054A1 (en) * | 2007-07-26 | 2009-09-10 | Nyberg Ii Charles Richard | Fuel nozzle for a gas turbine engine and method of fabricating the same |
Also Published As
Publication number | Publication date |
---|---|
EP2375165A1 (en) | 2011-10-12 |
JP2011208933A (en) | 2011-10-20 |
CN102207287A (en) | 2011-10-05 |
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Owner name: GENERAL ELECTRIC COMPANY, NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SUBRAMANIAN, KARTHIK;STOIA, LUCAS JOHN;SIGNING DATES FROM 20100324 TO 20100329;REEL/FRAME:024159/0153 |
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Owner name: GENERAL ELECTRIC COMPANY, NEW YORK Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE DOCKET NUMBER PREVIOUSLY RECORDED ON REEL 024159 FRAME 0153. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNORS:SUBRAMANIAN, KARTHIK;STOIA, LUCAS JOHN;SIGNING DATES FROM 20100324 TO 20100329;REEL/FRAME:024288/0222 |
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STCB | Information on status: application discontinuation |
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