JP5196974B2 - 上流プラズマ遮蔽式フィルム冷却 - Google Patents
上流プラズマ遮蔽式フィルム冷却 Download PDFInfo
- Publication number
- JP5196974B2 JP5196974B2 JP2007308449A JP2007308449A JP5196974B2 JP 5196974 B2 JP5196974 B2 JP 5196974B2 JP 2007308449 A JP2007308449 A JP 2007308449A JP 2007308449 A JP2007308449 A JP 2007308449A JP 5196974 B2 JP5196974 B2 JP 5196974B2
- Authority
- JP
- Japan
- Prior art keywords
- wall
- plasma
- film cooling
- hot surface
- upstream
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
- H05H1/2439—Surface discharges, e.g. air flow control
-
- 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
-
- 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
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/914—Device to control boundary layer
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Plasma Technology (AREA)
- Coating By Spraying Or Casting (AREA)
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 上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
68 境界部
70 スリップ境界層
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
U 上流
D 下流方向
LE 前縁
TE 後縁
Claims (10)
- 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)の上流(U)で前記壁(26)の前記外側高温表面(54)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、上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、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1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2に記載のシステム(11)。
- 前記誘電体材料(5)が、前記外側高温表面(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2又は3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4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4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)の上流で前記壁(26)の前記外側高温表面(54)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、上流プラズマ境界層遮蔽システム(11)。 - 上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、
外側高温表面(54)を有する壁(26)を貫通して配置されたフィルム冷却開口(49)の上流に且つ前記外側高温表面(54)に配置されたプラズマ発生器(2)に電力供給して、前記フィルム冷却開口(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8記載の方法。
- 前記壁(26)が、ガスタービンエンジンのタービンノズル(30)の翼形部(39)の正圧側面(46)及び負圧側面(48)を形成し、前記プラズマ発生器(2)が、該正圧側面(46)及び負圧側面(48)の前記フィルム冷却孔(49)と前記タービンノズルの前縁との間にのみ設けられていることを特徴とする、請求項1乃至4のいずれか1項に記載のシステム(11)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/606,971 US7588413B2 (en) | 2006-11-30 | 2006-11-30 | Upstream plasma shielded film cooling |
US11/606,971 | 2006-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008139011A JP2008139011A (ja) | 2008-06-19 |
JP5196974B2 true JP5196974B2 (ja) | 2013-05-15 |
Family
ID=38893307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007308449A Expired - Fee Related JP5196974B2 (ja) | 2006-11-30 | 2007-11-29 | 上流プラズマ遮蔽式フィルム冷却 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7588413B2 (ja) |
EP (1) | EP1930546B1 (ja) |
JP (1) | JP5196974B2 (ja) |
CA (1) | CA2612043C (ja) |
DE (1) | DE602007012647D1 (ja) |
RU (1) | RU2458227C2 (ja) |
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US20090169356A1 (en) * | 2007-12-28 | 2009-07-02 | Aspi Rustom Wadia | Plasma Enhanced Compression System |
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US20100205928A1 (en) * | 2007-12-28 | 2010-08-19 | Moeckel Curtis W | Rotor stall sensor system |
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US20100284785A1 (en) * | 2007-12-28 | 2010-11-11 | Aspi Rustom Wadia | Fan Stall Detection System |
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-
2006
- 2006-11-30 US US11/606,971 patent/US7588413B2/en not_active Expired - Fee Related
-
2007
- 2007-11-22 CA CA 2612043 patent/CA2612043C/en not_active Expired - Fee Related
- 2007-11-27 DE DE602007012647T patent/DE602007012647D1/de active Active
- 2007-11-27 EP EP07121659A patent/EP1930546B1/en not_active Expired - Fee Related
- 2007-11-29 JP JP2007308449A patent/JP5196974B2/ja not_active Expired - Fee Related
- 2007-11-29 RU RU2007144486/06A patent/RU2458227C2/ru not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
RU2007144486A (ru) | 2009-06-10 |
US7588413B2 (en) | 2009-09-15 |
CA2612043A1 (en) | 2008-05-30 |
CA2612043C (en) | 2015-03-31 |
EP1930546A3 (en) | 2009-05-06 |
RU2458227C2 (ru) | 2012-08-10 |
DE602007012647D1 (de) | 2011-04-07 |
EP1930546B1 (en) | 2011-02-23 |
JP2008139011A (ja) | 2008-06-19 |
US20080128266A1 (en) | 2008-06-05 |
EP1930546A2 (en) | 2008-06-11 |
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