JP4974857B2 - 複合間隙制御エンジン - Google Patents
複合間隙制御エンジン Download PDFInfo
- Publication number
- JP4974857B2 JP4974857B2 JP2007293846A JP2007293846A JP4974857B2 JP 4974857 B2 JP4974857 B2 JP 4974857B2 JP 2007293846 A JP2007293846 A JP 2007293846A JP 2007293846 A JP2007293846 A JP 2007293846A JP 4974857 B2 JP4974857 B2 JP 4974857B2
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- air
- compressor
- flow communication
- flow
- 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
- F01D11/24—Actively adjusting tip-clearance by selectively cooling-heating stator or rotor components
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
10 エンジン
12 中心軸
14 ファン
16 ブースタ圧縮機
18 高圧(HP)圧縮機
20 燃焼器
22 高圧タービン(HPT)
24 低圧タービン(LPT)
26 ナセル
28 バイパスダクト
30 第1の駆動シャフト
32 第2の駆動シャフト
34 空気
36 燃焼ガス
38 ステータベーン
40 タービンブレード
42 ロータディスク
44 タービンシュラウド
46 ハンガー
48 ケース
50 能動間隙制御(ACC)システム
52 プレナム
54 衝突バッフル
56 熱交換器(HX)
58 入口回路
60 第1の回路
62 第2の回路
64 第1のバイパス
66 第2のバイパス
68 コントローラ
70 冷却通路
72 内側ケーシング
74 外側ケーシング
76 ディフューザ
78 混合室
80 移送管体
82 孔
84 流れインデューサ
Claims (9)
- ガスタービンエンジン(10)において、
圧縮機(18)と燃焼器(20)と前記圧縮機(18)を駆動する高圧(HP)タービン(22)と前記ファン(14)を駆動する低圧タービン(24)とに直列流れ連通してナセル(26)内部に取り付けられたファン(14)を備え、
前記高圧(HP)タービン(22)が、周囲のタービンシュラウド(44)の内部にこれと半径方向のギャップを有して取り付けられたタービンロータブレード(40)の列を含み、
前記ガスタービンエンジンが更に、
ファン空気(34)を使用して前記圧縮機(18)からの加圧排出空気(34a)を冷却するために、前記圧縮機(18)と流れ連通して前記ナセル(26)内部のファンバイパスダクト(28)に配置された熱交換器(56)と、
前記熱交換器(56)と流れ連通して配置され、前記シュラウド(44)の外側と前記ブレード(40)の内側の両方で前記HPタービン(22)に前記圧縮機空気(34a)を選択的に分配するための複数の弁(1−3)を含む分配ネットワークと、
前記ブレード(40)の周りで前記シュラウド(44)を支持する能動間隙制御(ACC)マウント(48)と
を備え、
前記ネットワークが、前記熱交換器(56)を前記マウント(48)に連結する第1の回路(60)と、前記マウント(48)を前記ブレード(40)に連結する第2の回路(62)とを有し、
前記ガスタービンエンジンが更に、
前記第1及び第2の回路(60、62)を通る前記圧縮機空気の流れを調節するために、前記ネットワーク内の前記弁(1−3)に作動的に連結されるコントローラ(68)を備える
ことを特徴とする、ガスタービンエンジン(10)。 - 前記ネットワークが更に、
前記熱交換器(56)をバイパスするために前記圧縮機18から前記マウント(48)まで流れ連通して連結された第1のバイパス(64)と、
前記マウント(48)をバイパスするために、前記熱交換器(56)から前記熱交換器(56)まで流れ連通して連結された第2のバイパス(66)と、
を含む、
ことを特徴とする請求項1に記載のエンジン。 - 前記第1のバイパス(64)が、貫通するバイパス流を選択的に制御するために直列に流れ連通した第1の弁(1)を含み、
前記第2のバイパス(66)が、貫通するバイパス流を選択的に制御するために直列に流れ連通した第2の弁(2)を含み、
前記第1の回路(60)が、貫通する流れを選択的に制御するために直列に流れ連通した第3の弁(3)を含む、
ことを特徴とする請求項2に記載のエンジン。 - 前記コントローラ(68)が、前記第1、第2、及び第3の弁(1−3)に作動的に連結され、前記3つの弁(1−3)の内の異なる弁を通る流れをそれぞれ優先させる3つの異なる運転モードで貫通する流れを調整するように構成されている、
ことを特徴とする請求項3に記載のエンジン。 - 前記マウント(48)が、
前記ブレード(40)の周りで前記タービンシュラウド(44)の列を支持する環状ケース(48)と、
前記ケース(48)を囲み、前記空気を前記ケース(48)に衝突させてその半径方向の膨張を制御するために前記第1の回路(60)と流れ連通させて配置された衝突バッフル(54)を有するプレナム(52)と、
を含む、
ことを特徴とする請求項4に記載のエンジン。 - 前記ブレード(40)が、前記第2の回路(62)と流れ連通して配置された内部冷却回路(70)を含み、
前記第2の回路(62)が、前記ケース(48)からの使用済み衝突空気を集めて前記ブレード(40)へ流すために前記プレナム(52)と流れ連通して連結されている、
ことを特徴とする請求項5に記載のエンジン。 - 前記燃焼器(20)を囲む内側及び外側燃焼器ケーシング(72、74)を更に備え、
前記第2の回路(62)が、前記内側ケーシング(72)の下方に取り付けられた混合室(78)と、前記内側及び外側燃焼器ケーシング(72、74)を貫通して半径方向に延びて前記混合室(78)と流れ連通している複数の移送管体(80)とを含む、
ことを特徴とする請求項6に記載のエンジン。 - 圧縮機排出空気(34a)を前記燃焼器(20)内に拡散するために前記圧縮機(18)の出口に配置され、且つ前記熱交換器(56)に連結されたディフューザ(76)と、
空気を配向するために前記混合室(78)及びブレード(40)間に流れ連通して前記第2の回路(62)内に配置された流れインデューサ(84)と、
を更に備える、
ことを特徴とする請求項6記載のエンジン。 - 第1の運転モードにおいて前記第1の弁(1)を開放して前記ケース(48)を加熱する段階と、
第2の運転モードにおいて前記第2の弁(2)を開放して前記ケース(48)をバイパスする段階と、
第3の運転モードにおいて前記第3の弁(3)を開放して、空気を前記ケース(48)に衝突させることにより前記ギャップの能動間隙制御を行う段階と、
を含む、請求項6に記載の前記エンジン(10)を使用する方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/599,834 US7823389B2 (en) | 2006-11-15 | 2006-11-15 | Compound clearance control engine |
US11/599,834 | 2006-11-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008121684A JP2008121684A (ja) | 2008-05-29 |
JP4974857B2 true JP4974857B2 (ja) | 2012-07-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007293846A Expired - Fee Related JP4974857B2 (ja) | 2006-11-15 | 2007-11-13 | 複合間隙制御エンジン |
Country Status (4)
Country | Link |
---|---|
US (1) | US7823389B2 (ja) |
EP (1) | EP1923539B1 (ja) |
JP (1) | JP4974857B2 (ja) |
CA (1) | CA2609279C (ja) |
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EP1923539A2 (en) | 2008-05-21 |
EP1923539A3 (en) | 2014-07-23 |
US20080112798A1 (en) | 2008-05-15 |
JP2008121684A (ja) | 2008-05-29 |
CA2609279C (en) | 2015-05-19 |
US7823389B2 (en) | 2010-11-02 |
CA2609279A1 (en) | 2008-05-15 |
EP1923539B1 (en) | 2016-11-02 |
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