JP2012132671A - 燃料の霧化を改善したデュアルオリフィス燃料ノズル - Google Patents
燃料の霧化を改善したデュアルオリフィス燃料ノズル Download PDFInfo
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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
- F23R3/283—Attaching or cooling of fuel injecting means including supports for fuel injectors, stems, or lances
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/38—Nozzles; Cleaning devices therefor
- F23D11/383—Nozzles; Cleaning devices therefor with swirl means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/38—Nozzles; Cleaning devices therefor
- F23D11/386—Nozzle cleaning
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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
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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
- F23R3/36—Supply of different fuels
-
- 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
- F23R2900/00004—Preventing formation of deposits on surfaces of gas turbine components, e.g. coke deposits
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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
- F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
- F23R2900/03042—Film cooled combustion chamber walls or domes
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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
- F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
- F23R2900/03044—Impingement cooled combustion chamber walls or subassemblies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
【解決手段】パイロット燃料噴射装置先端部57は、同心の一次および二次パイロット燃料ノズル58、59を含み、一次および二次パイロット燃料ノズルは、円形の一次出口98および環状の二次出口100をそれぞれ有し、円形の一次出口は、環状の二次出口よりも軸方向後方に下流に配置される。燃料ノズルアセンブリ12は、一次および二次出口を囲繞する内側に先細りする環状の円錐形流路部を有するパイロットスワラ流路部222を含む。流路部224の径方向内側の境界を定める内側に先細りする円錐形壁部は、円錐面を画定する。
【選択図】図5
Description
57 パイロット燃料噴射装置先端部
58 一次パイロット燃料ノズル
59 二次パイロット燃料ノズル
98 一次出口
100 二次出口
114 外側パイロットスワラ
116 スワラスプリッタ
136 一次燃料スワラ
137 二次燃料スワラ
142 第1の下流端
143 第2の下流端
158 一次燃料供給通路
159 二次燃料供給通路
164 燃料噴射孔
180 環状の配列
182 螺旋回転スロット
190 噴射装置冷却流路
192 後部環状プレナム
206 環状の冷却流路入口
208 上流前端
210 環状の面取りした前縁
212 円錐形の面取り面
226 径方向外側の壁
230 内側に先細りする円錐形の壁部
232 円錐面
Claims (10)
- パイロット燃料噴射装置先端部(57)の中心軸(120)を中心に心合わせされた事実上同心の一次および二次パイロット燃料ノズル(58、59)を備える、パイロット燃料噴射装置先端部(57)であって、
前記一次および二次パイロット燃料ノズル(58、59)が、円形の一次出口(98)および環状の二次出口(100)をそれぞれ有し、
前記円形の一次出口(98)が、前記環状の二次出口(100)よりも軸方向後方に下流に配置される、パイロット燃料噴射装置先端部(57)。 - 前記二次パイロット燃料ノズル(59)の前記環状の二次出口(100)に燃料を流すように動作する、環状の二次燃料供給通路(159)と、
前記二次燃料供給通路(159)中の環状の二次燃料スワラ(137)とをさらに備え、
前記二次燃料スワラ(137)が、螺旋回転スロット(182)の環状の配列(180)を含む、請求項1記載のパイロット燃料噴射装置先端部(57)。 - 前記螺旋回転スロット(182)が矩形の断面(183)を有する、請求項2記載のパイロット燃料噴射装置先端部(57)。
- パイロットミキサ(102)への環状のパイロット入口(54)の中心軸(120)を中心に事実上心合わせされたパイロット燃料噴射装置先端部(57)と、
前記パイロット燃料噴射装置先端部(57)の事実上同心の一次および二次パイロット燃料ノズル(58、59)とを備える、ガスタービンエンジンの燃料ノズルアセンブリ(12)であって、
前記一次および二次パイロット燃料ノズル(58、59)が、円形の一次出口(98)および環状の二次出口(100)をそれぞれ有し、
前記円形の一次出口(98)が、前記環状の二次出口(100)の軸方向後方に下流に配置される、ガスタービンエンジンの燃料ノズルアセンブリ(12)。 - 前記二次パイロット燃料ノズル(59)の前記環状の二次出口(100)に燃料を流すように動作する、環状の二次燃料供給通路(159)と、
前記二次燃料供給通路(159)の環状の二次燃料スワラ(137)とをさらに備え、
前記二次燃料スワラ(137)が、螺旋回転スロット(182)の環状の配列(180)を含む、請求項4記載の燃料ノズルアセンブリ(12)。 - 前記螺旋回転スロット(182)が矩形の断面(183)を有する、請求項5記載の燃料ノズルアセンブリ(12)。
- パイロットスワラ流路部(222)の、内側に先細りする環状の円錐形流路部(224)と、
前記円形の一次出口(98)を含む前記一次パイロット燃料ノズル(58)の第1の下流端(142)と、
前記環状の二次出口(100)を含む前記二次パイロット燃料ノズル(59)の第2の下流端(143)とをさらに備え、
前記内側に先細りする環状の円錐形流路部(224)が、前記第1および第2の下流端(142、143)を囲繞し、
燃料ノズルアセンブリ(12)がさらに
前記内側に先細りする環状の円錐形流路部(224)の径方向内側の境界を定められ、円錐面(232)を画定する、内側に先細りする円錐形壁部(230)を備え、
前記円形の一次出口(98)および環状の二次出口(100)が、前記円錐面(232)に、または前記円錐面(232)の軸方向前方もしくは上流に配置される、請求項4記載の燃料ノズルアセンブリ(12)。 - 前記二次パイロット燃料ノズル(59)の前記環状の二次出口(100)に燃料を送るように動作する、環状の二次燃料供給通路(159)と、
前記二次燃料供給通路(159)の環状の二次燃料スワラ(137)とをさらに備え、
前記二次燃料スワラ(137)が、螺旋回転スロット(182)の環状の配列(180)を含む、請求項7記載の燃料ノズルアセンブリ(12)。 - 前記螺旋回転スロット(182)が矩形の断面(183)を有する、請求項8記載の燃料ノズルアセンブリ(12)。
- 前記デュアルオリフィスパイロット燃料噴射装置先端部(57)の径方向外側にそれに隣接して配置された、内側パイロットスワラ(112)と、
前記内側スワラ(112)の径方向外側に配置された、外側パイロットスワラ(114)と、
径方向において、前記第1のパイロットスワラ(112)と第2のパイロットスワラ(114)との間に配置された、スプリッタ(116)とをさらに備え、
前記内側パイロットスワラ(112)が、内側に先細りする環状の円錐形流路部(224)の上流に軸方向前方に、前記スプリッタ(116)と前記パイロット燃料噴射装置先端部(57)の径方向外側の壁(226)との間に、概して円筒形の内側パイロットスワラ流路部(222)を含み、
燃料噴射装置(10)がさらに、
前記内側に先細りする円錐形流路部(224)の径方向内側の境界を定める前記径方向外側の壁(226)の内側に先細りする円錐形壁部(230)と、
前記内側に先細りする円錐形壁部(230)によって画定される円錐面(232)とを備え、
前記円形の一次出口(98)および環状の二次出口(100)が、前記円錐面(232)に、または前記円錐面(232)の軸方向前方もしくは上流に配置される、請求項4記載の燃料噴射装置(10)。
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US12/971,597 | 2010-12-17 | ||
US12/971,597 US8726668B2 (en) | 2010-12-17 | 2010-12-17 | Fuel atomization dual orifice fuel nozzle |
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JP2012132671A true JP2012132671A (ja) | 2012-07-12 |
JP2012132671A5 JP2012132671A5 (ja) | 2015-01-29 |
JP6035021B2 JP6035021B2 (ja) | 2016-11-30 |
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Also Published As
Publication number | Publication date |
---|---|
EP2466207A3 (en) | 2017-11-15 |
CA2760046A1 (en) | 2012-06-17 |
US20120151930A1 (en) | 2012-06-21 |
US8726668B2 (en) | 2014-05-20 |
JP6035021B2 (ja) | 2016-11-30 |
EP2466207A2 (en) | 2012-06-20 |
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