JP2008095685A - プラズマ強化急拡大型ガスタービンエンジン移行ダクト - Google Patents
プラズマ強化急拡大型ガスタービンエンジン移行ダクト Download PDFInfo
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- JP2008095685A JP2008095685A JP2007262347A JP2007262347A JP2008095685A JP 2008095685 A JP2008095685 A JP 2008095685A JP 2007262347 A JP2007262347 A JP 2007262347A JP 2007262347 A JP2007262347 A JP 2007262347A JP 2008095685 A JP2008095685 A JP 2008095685A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
- F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/221—Improvement of heat transfer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/17—Purpose of the control system to control boundary layer
- F05D2270/172—Purpose of the control system to control boundary layer by a plasma generator, e.g. control of ignition
-
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Plasma Technology (AREA)
- Spark Plugs (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
【解決手段】本プラズマ強化急拡大型ダクトシステム(11)は、ダクト入口(64)及びダクト出口(66)間で軸方向に延びる半径方向に間隔を置いて配置された円錐形内側及び外側ダクト壁(60及び62)を有するガスタービンエンジンタービン間移行ダクト(114)を含む。円錐形プラズマ発生装置(2)は、外側ダクト壁(62)に沿って円錐形プラズマ(90)を生成する。円錐形プラズマ発生装置(2)の例示的な実施形態は、外側ダクト壁(62)に取付けられ、誘電体材料(5)によって分離された半径方向内側及び外側電極(3、4)を含む。誘電体材料(5)は、外側ダクト壁(62)の半径方向内向き表面(7)内の円錐形溝(6)内部に配置される。AC電源(100)は、電極に接続されて該電極に高電圧AC電位を供給する。
【選択図】 図2
Description
3 内側電極
4 外側電極
5 誘電体材料
6 円錐形溝
7 内向き表面
8 エンジン中心軸線
10 ガスタービンエンジン
11 プラズマ強化急拡大型ダクトシステム
12 ファン
14 周囲空気
16 ブースタ又は低圧圧縮機(LPC)
18 高圧圧縮機(HPC)
20 燃焼器
22 高圧タービン(HPT)
24 低圧タービン(LPT)
28 低圧シャフト
29 高圧ロータ
36 空気流
60 内側ダクト壁
62 外側ダクト壁
64 ダクト入口
66 ダクト出口
90 プラズマ
100 AC電源
102 端縁部
104 面積
114 移行ダクト
AE 出口面積
AI 入口面積
HI 入口半径方向高さ
HO 出口半径方向高さ
L 長さ
RI 入口外径
RO 出口外径
R 半径
Claims (11)
- ダクト入口(64)及び前記ダクト入口の後方かつ下流のダクト出口(66)を有するガスタービンエンジンタービン間移行ダクト(114)と、
前記ダクト入口(64)及びダクト出口(66)間で軸方向に延びる半径方向に間隔を置いて配置された円錐形半径方向内側及び外側ダクト壁(60及び62)と、
前記外側ダクト壁(62)に沿って円錐形プラズマ(90)を生成するための円錐形プラズマ発生装置(2)と、
を含むプラズマ強化急拡大型ダクトシステム(11)。 - 前記円錐形プラズマ発生装置(2)が、前記外側ダクト壁(62)に取付けられる、請求項1記載のシステム(11)。
- 前記円錐形プラズマ発生装置(2)が、誘電体材料(5)によって分離された半径方向内側及び外側電極(3、4)を含む、請求項2記載のシステム(11)。
- 前記電極に接続されて該電極に高電圧AC電位を供給するAC電源(100)をさらに含む、請求項3記載のシステム(11)。
- 前記誘電体材料(5)が、前記外側ダクト壁(62)の半径方向内向き表面(7)内の円錐形溝(6)内部に配置される、請求項4記載のシステム(11)。
- 前記誘電体材料(5)が、前記外側ダクト壁(62)の半径方向内向き表面(7)内の円錐形溝(6)内部に配置される、請求項1記載のシステム(11)。
- 前記タービン間移行ダクト(114)が、エンジン中心軸線(8)の周りを囲み、
前記ダクト入口(64)において前記中心軸線(8)から前記外側ダクト壁(62)まで延びる入口外側半径(RI)と、
前記ダクト出口(66)において前記中心軸線(8)から前記外側ダクト壁(62)まで延びる出口外側半径(RO)と、
前記ダクト入口(64)において前記内側及び外側ダクト壁(60及び62)間で延びる入口半径方向高さ(HI)と、
前記ダクト入口(64)及びダクト出口(66)間で延びるダクト長さ(L)と、
前記入口外側半径(RI)と前記出口外側半径(RO)との間の差(DR)と、をさらに含み、
前記差(DR)/前記入口半径方向高さ(HI)が、0.375×前記長さ(L)/前記入口半径方向高さ(HI)よりも大きい、
請求項1記載のシステム(11)。 - 前記タービン間移行ダクト(114)が、エンジン中心軸線(8)の周りを囲み、
前記ダクト入口(64)において前記内側及び外側ダクト壁(60及び62)間で延びる入口面積(AI)と、
前記ダクト出口(66)において前記内側及び外側ダクト壁(60及び62)間で延びる出口面積(AE)と、
前記ダクト入口(64)において前記内側及び外側ダクト壁(60及び62)間で延びる入口半径方向高さ(HI)と、
前記ダクト入口(64)及びダクト出口(66)間で延びるダクト長さ(L)と、
前記出口面積(AE)/前記入口面積(AI)と等しい面積比(AR)と、を含み、
前記面積比(AR)が、0.2067×前記長さ(L)/前記入口半径方向高さ(HI)よりも大きい、
請求項1記載のシステム(11)。 - プラズマ強化急拡大型ダクトシステム(11)を有するガスタービンエンジンを運転する方法であって、
前記プラズマ強化急拡大型ダクトシステム(11)のガスタービンエンジンタービン間移行ダクト(114)の円錐形外側ダクト壁(62)に沿って円錐形プラズマ(90)を形成する段階、
を含む方法。 - 前記タービン間移行ダクト(114)が、エンジン中心軸線(8)の周りを囲み、
前記ダクト入口(64)において前記中心軸線(8)から前記外側ダクト壁(62)まで延びる入口外側半径(RI)と、
前記ダクト出口(66)において前記中心軸線(8)から前記外側ダクト壁(62)まで延びる出口外側半径(RO)と、
前記ダクト入口(64)において前記内側及び外側ダクト壁(60及び62)間で延びる入口半径方向高さ(HI)と、
前記ダクト入口(64)及びダクト出口(66)間で延びるダクト長さ(L)と、
前記入口外側半径(RI)と前記出口外側半径(RO)との間の差(DR)と、をさらに含み、
前記差(DR)/前記入口半径方向高さ(HI)が、0.375×前記長さ(L)/前記入口半径方向高さ(HI)よりも大きい、
請求項9記載の方法。 - 前記タービン間移行ダクト(114)が、エンジン中心軸線(8)の周りを囲み、
前記ダクト入口(64)において前記内側及び外側ダクト壁(60及び62)間で延びる入口面積(AI)と、
前記ダクト出口(66)において前記内側及び外側ダクト壁(60及び62)間で延びる出口面積(AE)と、
前記ダクト入口(64)において前記内側及び外側ダクト壁(60及び62)間で延びる入口半径方向高さ(HI)と、
前記ダクト入口(64)及びダクト出口(66)間で延びるダクト長さ(L)と、
前記出口面積(AE)/前記入口面積(AI)と等しい面積比(AR)と、を含み、
前記面積比(AR)が、0.2067×前記長さ(L)/前記入口半径方向高さ(HI)よりも大きい、
請求項9記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/580,788 US7870719B2 (en) | 2006-10-13 | 2006-10-13 | Plasma enhanced rapidly expanded gas turbine engine transition duct |
US11/580,788 | 2006-10-13 |
Publications (2)
Publication Number | Publication Date |
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JP2008095685A true JP2008095685A (ja) | 2008-04-24 |
JP5100293B2 JP5100293B2 (ja) | 2012-12-19 |
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JP2007262347A Expired - Fee Related JP5100293B2 (ja) | 2006-10-13 | 2007-10-05 | プラズマ強化急拡大型ガスタービンエンジン移行ダクト |
Country Status (5)
Country | Link |
---|---|
US (1) | US7870719B2 (ja) |
EP (1) | EP1914385A3 (ja) |
JP (1) | JP5100293B2 (ja) |
CA (1) | CA2605525C (ja) |
RU (1) | RU2463459C2 (ja) |
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Also Published As
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US7870719B2 (en) | 2011-01-18 |
EP1914385A3 (en) | 2009-05-06 |
JP5100293B2 (ja) | 2012-12-19 |
EP1914385A2 (en) | 2008-04-23 |
RU2463459C2 (ru) | 2012-10-10 |
CA2605525A1 (en) | 2008-04-13 |
RU2007129570A (ru) | 2009-02-10 |
CA2605525C (en) | 2015-03-17 |
US20100251696A1 (en) | 2010-10-07 |
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