JP5048444B2 - プラズマ式ブレード先端間隙制御装置 - Google Patents
プラズマ式ブレード先端間隙制御装置 Download PDFInfo
- Publication number
- JP5048444B2 JP5048444B2 JP2007265053A JP2007265053A JP5048444B2 JP 5048444 B2 JP5048444 B2 JP 5048444B2 JP 2007265053 A JP2007265053 A JP 2007265053A JP 2007265053 A JP2007265053 A JP 2007265053A JP 5048444 B2 JP5048444 B2 JP 5048444B2
- Authority
- JP
- Japan
- Prior art keywords
- annular
- blade tip
- shroud
- plasma
- clearance
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
- F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
- F01D11/20—Actively adjusting tip-clearance
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
例えば離陸、減速などのような過渡条件の間に発生するおそれがあるシールとブレード先端との間の干渉又は摩耗を減少させるか又は排除しながら、エンジンがその運転サイクルの大部分において最小のシール間隙で作動するのを可能にするように設計される。また、ブレード先端とシュラウドとの間の摩擦を回避するか又は減少させることによってブレード先端間隙を維持する受動間隙制御システムも存在する。
3 内側電極
4 外側電極
5 誘電体材料
6 環状グルーブ
7 内向き表面
8 エンジン中心線
9 ブレード先端間隙システム
10 ガスタービンエンジン
11 プラズマ式ブレード先端間隙制御システム
12 能動間隙制御システム
13 ファンセクション
14 ファン
15 ファンバイパスダクト
16 ブースタ又は低圧圧縮機(LPC)
17 出口案内ベーン
18 高圧圧縮機(HPC)
19 空気供給入口
20 燃焼セクション
22 高圧タービン(HPT)
24 低圧タービン(LPT)
26 高圧シャフト
28 低圧シャフト
30 HPTロータ
32 加圧ファン空気供給部
34 タービンブレード
36 熱制御空気
40 タービンブレード先端能動間隙制御装置
42 空気供給管
44 空気弁
48 電子式コントローラ
50 分配マニホルド
54 ヘッダ管
56 プレナム
60 スプレー管
64 ステータ組立体
66 外側ケーシング
68 前方ケースフック
70 後方ケースフック
72 シュラウド
73 シュラウドセグメント
74 前方シュラウドフック
76 後方シュラウドフック
80 シュラウド支持体
82 ブレード先端
84 前方熱制御リング
86 後方熱制御リング
90 プラズマ
100 AC電源
102 端縁部
104 領域
106 グルーブセグメント
110 境界層
CL 運転間隙
CCL 冷間間隙
ECL 有効間隙
Claims (7)
- ガスタービンエンジンのプラズマ式ブレード先端間隙制御システム(11)であって、
回転ブレード先端(82)を囲む環状シュラウド(72)と、
前記ブレード先端(82)から半径方向外側にかつ離れて間隔を置いて配置された環状プラズマ発生器(2)と、
を含み、
前記環状プラズマ発生器(2)が、前記環状シュラウド(72)に取付けられ、
前記環状プラズマ発生器(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)をさらに含む
ことを特徴とする、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1記載のシステム(11)。
- 前記誘電体材料(5)が、前記環状シュラウド(72)の半径方向内向き表面(7)の環状グルーブ(6)内に配置される、請求項2記載のシステム(11)。
- 前記プラズマ発生器(2)が、前記環状シュラウド(72)とブレード先端(82)との間に環状プラズマ(90)を形成し、また前記環状プラズマ(90)によって前記環状シュラウド(72)とブレード先端(82)との間に生成されかつ該環状シュラウド(72)とブレード先端(82)との間の冷間間隙(CCL)よりも小さい有効間隙(ECL)を形成する、ように作動可能である、
請求項1記載のシステム(11)。 - 前記環状シュラウド(72)が、セグメント化されかつシュラウドセグメント(73)を有し、
環状グルーブセグメント(106)が、前記環状シュラウドセグメント(73)の半径方向内向き表面(7)内に設けられ、
前記環状プラズマ発生器(2)が、前記環状グルーブセグメント(107)内の誘電体材料(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1記載のシステム(11)。 - 航空機ガスタービンエンジン(10)のブレード先端間隙システム(9)であって、
回転ブレード先端(82)を囲む環状シュラウド(72)と、
熱制御空気(36)を使用して前記回転ブレード先端(82)と環状シュラウド(72)との間の先端運転間隙(CL)を維持するようになった能動間隙制御システム(12)と、
前記ブレード先端(82)から半径方向外側にかつ離れて間隔を置いて配置された環状プラズマ発生器(2)と、
含み、
前記環状シュラウド(72)が、セグメント化されかつシュラウドセグメント(73)を有し、
環状グルーブセグメント(106)が、前記環状シュラウドセグメント(73)の半径方向内向き表面(7)内に設けられ、
前記環状プラズマ発生器(2)が、前記環状グルーブセグメント(107)内の誘電体材料(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
ことを特徴とする、システム(9)。 - 回転ブレード先端(82)と前記回転ブレード先端(82)を囲む環状シュラウド(72)との間の間隙を維持するように航空機ガスタービンエンジンのプラズマ式ブレード先端間隙制御システム(11)を作動させる方法であって、
前記ブレード先端(82)から半径方向外側にかつ離れて間隔を置いて配置された環状プラズマ発生器(2)の誘電体材料(5)によって分離された半径方向内側及び外側電極(3、4)に対してAC電位を供給する段階、
を含む方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/580,789 | 2006-10-13 | ||
US11/580,789 US7819626B2 (en) | 2006-10-13 | 2006-10-13 | Plasma blade tip clearance control |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012160065A Division JP5312647B2 (ja) | 2006-10-13 | 2012-07-19 | プラズマ式ブレード先端間隙制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008095692A JP2008095692A (ja) | 2008-04-24 |
JP5048444B2 true JP5048444B2 (ja) | 2012-10-17 |
Family
ID=38893313
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007265053A Expired - Fee Related JP5048444B2 (ja) | 2006-10-13 | 2007-10-11 | プラズマ式ブレード先端間隙制御装置 |
JP2012160065A Expired - Fee Related JP5312647B2 (ja) | 2006-10-13 | 2012-07-19 | プラズマ式ブレード先端間隙制御装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012160065A Expired - Fee Related JP5312647B2 (ja) | 2006-10-13 | 2012-07-19 | プラズマ式ブレード先端間隙制御装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7819626B2 (ja) |
EP (1) | EP1914391A3 (ja) |
JP (2) | JP5048444B2 (ja) |
CA (1) | CA2605521C (ja) |
Families Citing this family (45)
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WO2008154592A2 (en) * | 2007-06-11 | 2008-12-18 | University Of Florida Research Foundation, Inc. | Electrodynamic control of blade clearance leakage loss in turbomachinery applications |
US20090065064A1 (en) * | 2007-08-02 | 2009-03-12 | The University Of Notre Dame Du Lac | Compressor tip gap flow control using plasma actuators |
US20090169363A1 (en) * | 2007-12-28 | 2009-07-02 | Aspi Rustom Wadia | Plasma Enhanced Stator |
US8282336B2 (en) * | 2007-12-28 | 2012-10-09 | General Electric Company | Instability mitigation system |
US20100047055A1 (en) * | 2007-12-28 | 2010-02-25 | Aspi Rustom Wadia | Plasma Enhanced Rotor |
US20100290906A1 (en) * | 2007-12-28 | 2010-11-18 | Moeckel Curtis W | Plasma sensor stall control system and turbomachinery diagnostics |
US8317457B2 (en) * | 2007-12-28 | 2012-11-27 | General Electric Company | Method of operating a compressor |
US20100284795A1 (en) * | 2007-12-28 | 2010-11-11 | General Electric Company | Plasma Clearance Controlled Compressor |
US20100047060A1 (en) * | 2007-12-28 | 2010-02-25 | Aspi Rustom Wadia | Plasma Enhanced Compressor |
US8348592B2 (en) * | 2007-12-28 | 2013-01-08 | General Electric Company | Instability mitigation system using rotor plasma actuators |
US8282337B2 (en) * | 2007-12-28 | 2012-10-09 | General Electric Company | Instability mitigation system using stator plasma actuators |
US20090169356A1 (en) * | 2007-12-28 | 2009-07-02 | Aspi Rustom Wadia | Plasma Enhanced Compression System |
US20100284785A1 (en) * | 2007-12-28 | 2010-11-11 | Aspi Rustom Wadia | Fan Stall Detection System |
US20100205928A1 (en) * | 2007-12-28 | 2010-08-19 | Moeckel Curtis W | Rotor stall sensor system |
US8006497B2 (en) * | 2008-05-30 | 2011-08-30 | Honeywell International Inc. | Diffusers, diffusion systems, and methods for controlling airflow through diffusion systems |
US8451459B2 (en) | 2008-10-31 | 2013-05-28 | General Electric Company | Method and system for inspecting blade tip clearance |
US7916311B2 (en) * | 2008-10-31 | 2011-03-29 | General Electric Company | Method and system for inspecting blade tip clearance |
US7984614B2 (en) * | 2008-11-17 | 2011-07-26 | Honeywell International Inc. | Plasma flow controlled diffuser system |
US20100172747A1 (en) * | 2009-01-08 | 2010-07-08 | General Electric Company | Plasma enhanced compressor duct |
US20100170224A1 (en) * | 2009-01-08 | 2010-07-08 | General Electric Company | Plasma enhanced booster and method of operation |
US8435001B2 (en) * | 2009-12-17 | 2013-05-07 | Siemens Energy, Inc. | Plasma induced flow control of boundary layer at airfoil endwall |
US8585356B2 (en) * | 2010-03-23 | 2013-11-19 | Siemens Energy, Inc. | Control of blade tip-to-shroud leakage in a turbine engine by directed plasma flow |
US8500404B2 (en) | 2010-04-30 | 2013-08-06 | Siemens Energy, Inc. | Plasma actuator controlled film cooling |
US9458855B2 (en) * | 2010-12-30 | 2016-10-04 | Rolls-Royce North American Technologies Inc. | Compressor tip clearance control and gas turbine engine |
US9284886B2 (en) * | 2011-12-30 | 2016-03-15 | Clearsign Combustion Corporation | Gas turbine with Coulombic thermal protection |
US20130251500A1 (en) * | 2012-03-23 | 2013-09-26 | Kin-Leung Cheung | Gas turbine engine case with heating layer and method |
EP2884823B3 (en) * | 2012-08-08 | 2019-03-06 | National Institute of Advanced Industrial Science and Technology | Surface plasma actuator |
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US20140119879A1 (en) * | 2012-10-29 | 2014-05-01 | General Electric Company | Turbomachine plasma seal system |
US8920124B2 (en) | 2013-02-14 | 2014-12-30 | Siemens Energy, Inc. | Turbine blade with contoured chamfered squealer tip |
US20160333890A1 (en) * | 2014-01-24 | 2016-11-17 | United Technologies Corporation | Gas turbine engine inner case with non-integral vanes |
US10371050B2 (en) | 2014-12-23 | 2019-08-06 | Rolls-Royce Corporation | Gas turbine engine with rotor blade tip clearance flow control |
US10087772B2 (en) | 2015-12-21 | 2018-10-02 | General Electric Company | Method and apparatus for active clearance control for high pressure compressors using fan/booster exhaust air |
WO2017141712A1 (ja) | 2016-02-16 | 2017-08-24 | 株式会社Ihi | 翼構造体の製造方法 |
US10329941B2 (en) * | 2016-05-06 | 2019-06-25 | United Technologies Corporation | Impingement manifold |
US10612409B2 (en) | 2016-08-18 | 2020-04-07 | United Technologies Corporation | Active clearance control collector to manifold insert |
WO2018085152A1 (en) | 2016-11-04 | 2018-05-11 | Clearsign Combustion Corporation | Plasma pilot |
US10487679B2 (en) | 2017-07-17 | 2019-11-26 | United Technologies Corporation | Method and apparatus for sealing components of a gas turbine engine with a dielectric barrier discharge plasma actuator |
FR3073007B1 (fr) * | 2017-10-27 | 2019-09-27 | Safran Aircraft Engines | Dispositif de maintien d'un tube de refroidissement pour carter de turbomachine |
WO2019123787A1 (ja) | 2017-12-21 | 2019-06-27 | 株式会社Ihi | 軸流圧縮機 |
JP6674437B2 (ja) | 2017-12-26 | 2020-04-01 | 株式会社Subaru | ロータの補助装置、ロータ、ガスタービンエンジン及び航空機 |
CN109779948B (zh) * | 2019-01-17 | 2021-01-05 | 沈阳航空航天大学 | 一种用于提高轴流风机性能的等离子式叶顶间隙密封方法 |
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CN112129213B (zh) * | 2020-10-26 | 2021-07-27 | 南京航空航天大学 | 基于脉冲介质阻挡放电的叶尖间隙测量系统及测量方法 |
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-
2006
- 2006-10-13 US US11/580,789 patent/US7819626B2/en not_active Expired - Fee Related
-
2007
- 2007-10-04 CA CA 2605521 patent/CA2605521C/en not_active Expired - Fee Related
- 2007-10-11 JP JP2007265053A patent/JP5048444B2/ja not_active Expired - Fee Related
- 2007-10-12 EP EP07254056A patent/EP1914391A3/en not_active Withdrawn
-
2012
- 2012-07-19 JP JP2012160065A patent/JP5312647B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP5312647B2 (ja) | 2013-10-09 |
EP1914391A3 (en) | 2009-04-15 |
US20080089775A1 (en) | 2008-04-17 |
EP1914391A2 (en) | 2008-04-23 |
JP2012207667A (ja) | 2012-10-25 |
US7819626B2 (en) | 2010-10-26 |
CA2605521A1 (en) | 2008-04-13 |
CA2605521C (en) | 2015-04-21 |
JP2008095692A (ja) | 2008-04-24 |
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