JP2008139012A - 下流プラズマ遮蔽式フィルム冷却 - Google Patents
下流プラズマ遮蔽式フィルム冷却 Download PDFInfo
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- JP2008139012A JP2008139012A JP2007308450A JP2007308450A JP2008139012A JP 2008139012 A JP2008139012 A JP 2008139012A JP 2007308450 A JP2007308450 A JP 2007308450A JP 2007308450 A JP2007308450 A JP 2007308450A JP 2008139012 A JP2008139012 A JP 2008139012A
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- wall
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- film cooling
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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
- 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
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/186—Film cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/10—Influencing flow of fluids around bodies of solid material
- F15D1/12—Influencing flow of fluids around bodies of solid material by influencing the boundary layer
-
- 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
- F23R3/002—Wall structures
-
- 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
- F05D2260/202—Heat transfer, e.g. cooling by film cooling
-
- 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
-
- 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
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/903—Convection
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/914—Device to control boundary layer
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Plasma Technology (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
【解決手段】下流プラズマ境界層遮蔽システムは、低温及び高温表面を有する壁を貫通して配置されかつ壁の低温表面から該壁の外側高温表面まで下流方向に傾斜したフィルム冷却開口を含む。フィルム冷却開口の下流に設置したプラズマ発生器は、該フィルム冷却開口を覆って下流方向に延びるプラズマを生成するために使用される。各プラズマ発生器は、外側高温表面の溝内に配置された誘電体材料によって分離された内側及び外側電極を含む。壁は、中空翼形部或いは環状燃焼器ライナ又は排気ライナの一部とすることができる。下流プラズマ境界層遮蔽システムを作動させる方法は、壁の外側高温表面に沿ってフィルム冷却開口を覆って下流方向に延びるプラズマを形成する段階を含む。本方法はさらに、プラズマ発生器を定常状態又は非定常モードで作動させる段階を含む。
【選択図】 図5
Description
3 内側電極
4 外側電極
5 誘電体材料
6 溝
8 エンジン中心軸線
10 ガスタービンエンジン
11 下流プラズマ境界層遮蔽システム
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)
19 ガス流
20 燃焼器
22 高圧タービン(HPT)
24 低圧タービン(LPT)
26 壁
28 低圧シャフト
29 高圧ロータ
30 タービンノズル
31 ベーン組立体
32 ベーン
33 列
35 冷却空気
37 冷却フィルム
38 内側バンド
39 翼形部
40 外側バンド
41 中空内部
42 セグメント
43 高圧圧縮機段
44 ライナ開口
45 圧縮機吐出空気
46 正圧側面
47 下流フランジ
48 負圧側面
49 フィルム冷却開口
50 流路
51 電子制御装置
52 内側高温表面
54 外側高温表面
56 冷却空気プレナム
59 低温表面
60 境界層
64 一部分
66 ライナ
70 誘導流
72 環状シュラウド
74 内側燃焼器ライナ
76 外側燃焼器ライナ
82 ブレード先端
90 プラズマ
100 AC電源
102 端縁部
104 区域
C 翼弦方向
S 翼長方向
T ガス温度勾配
V 速度勾配
D 下流方向
LE 前縁
TE 後縁
Claims (11)
- 壁(26)を貫通して配置されかつ前記壁(26)の低温表面(59)から該壁(26)の外側高温表面(54)まで下流方向(D)に傾斜したフィルム冷却開口(49)と、
前記フィルム冷却開口(49)の下流に設置されて該フィルム冷却開口(49)を覆って延びるプラズマ(90)を生成するようになったプラズマ発生器(2)と、
を含む、下流プラズマ境界層遮蔽システム(11)。 - 前記プラズマ発生器(2)が、前記壁(26)上に取付けられることをさらに特徴とする、請求項1記載のシステム(11)。
- 前記プラズマ発生器(2)が、誘電体材料(5)によって分離された内側及び外側電極(3、4)を含むことをさらに特徴とする、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)を含むことをさらに特徴とする、請求項3に記載のシステム(11)。
- 前記誘電体材料(5)が、前記壁(26)の外側高温表面(54)の溝(6)内に配置されることをさらに特徴とする、請求項4記載のシステム(11)。
- 前記壁(26)及び溝(6)が環状であることをさらに特徴とする、請求項5記載のシステム(11)。
- 前記壁(26)が環状であり、
前記壁(26)が、少なくとも部分的にガスタービンエンジン環状燃焼器ライナ(66)を形成し、
前記溝(6)が環状である、
ことをさらに特徴とする、請求項5記載のシステム(11)。 - 円周方向に間隔を置いて配置されかつ半径方向に延びるガスタービンエンジンベーン(32)の列を含み、前記ベーン(32)の各々が、翼長方向に延びる中空翼形部(39)を有し、前記翼形部(39)が、対向する前縁及び後縁(LE、TE)間で下流方向(D)にかつ翼弦方向(C)に延びる外壁(26)を有すると共にそれぞれ半径方向内側及び外側バンド(38、40)間で半径方向翼長方向(S)に延びる、ベーン組立体(31)と、
前記壁(26)を貫通して配置されかつ前記壁(26)の低温表面(59)から該壁(26)の外側高温表面(54)まで下流方向(D)に傾斜したフィルム冷却開口(49)と、
前記フィルム冷却開口(49)の下流で前記翼形部(39)上に取付けられて該フィルム冷却開口(49)を覆って延びるプラズマ(90)を生成するようになったプラズマ発生器(2)と、
を含む、下流プラズマ境界層遮蔽システム(11)。 - 下流プラズマ境界層遮蔽システム(11)を作動させる方法であって、
プラズマ発生器(2)に電力供給して、壁(26)を貫通して配置されたフィルム冷却開口(49)を覆ってかつ該壁(26)の外側高温表面(54)に沿って下流方向(D)に延びるプラズマ(90)を形成する段階、
を含む、方法。 - 前記電力供給する段階が、前記プラズマ発生器(2)の誘電体材料(5)によって分離された内側及び外側電極(3、4)にAC電位を供給する段階を含むことをさらに特徴とする、請求項9記載の方法。
- 前記プラズマ発生器(2)を定常状態又は非定常モードで作動させる段階を含むことをさらに特徴とする、請求項10記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/606,853 | 2006-11-30 | ||
US11/606,853 US7695241B2 (en) | 2006-11-30 | 2006-11-30 | Downstream plasma shielded film cooling |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008139012A true JP2008139012A (ja) | 2008-06-19 |
JP5185601B2 JP5185601B2 (ja) | 2013-04-17 |
Family
ID=38893272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007308450A Expired - Fee Related JP5185601B2 (ja) | 2006-11-30 | 2007-11-29 | 下流プラズマ遮蔽式フィルム冷却 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7695241B2 (ja) |
EP (1) | EP1930545B1 (ja) |
JP (1) | JP5185601B2 (ja) |
CA (1) | CA2612042C (ja) |
DE (1) | DE602007011878D1 (ja) |
RU (1) | RU2455495C2 (ja) |
Cited By (2)
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JP2015229924A (ja) * | 2014-06-03 | 2015-12-21 | 株式会社Ihi | ジェットエンジン用燃焼器 |
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- 2007-11-27 DE DE602007011878T patent/DE602007011878D1/de active Active
- 2007-11-27 EP EP07121658A patent/EP1930545B1/en not_active Expired - Fee Related
- 2007-11-29 RU RU2007144487/06A patent/RU2455495C2/ru not_active IP Right Cessation
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JP2014501867A (ja) * | 2010-10-29 | 2014-01-23 | ゼネラル・エレクトリック・カンパニイ | 成形した冷却用穴を有する基板および製造方法 |
JP2015229924A (ja) * | 2014-06-03 | 2015-12-21 | 株式会社Ihi | ジェットエンジン用燃焼器 |
Also Published As
Publication number | Publication date |
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EP1930545A2 (en) | 2008-06-11 |
CA2612042A1 (en) | 2008-05-30 |
EP1930545A3 (en) | 2009-04-29 |
JP5185601B2 (ja) | 2013-04-17 |
US7695241B2 (en) | 2010-04-13 |
DE602007011878D1 (de) | 2011-02-24 |
EP1930545B1 (en) | 2011-01-12 |
RU2007144487A (ru) | 2009-06-10 |
RU2455495C2 (ru) | 2012-07-10 |
CA2612042C (en) | 2015-04-14 |
US20080131265A1 (en) | 2008-06-05 |
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