JP2004204839A - 隣接する部材間を跨ぐ表面埋込形シールを有するシュラウドセグメント及び組立体 - Google Patents
隣接する部材間を跨ぐ表面埋込形シールを有するシュラウドセグメント及び組立体 Download PDFInfo
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- JP2004204839A JP2004204839A JP2003357151A JP2003357151A JP2004204839A JP 2004204839 A JP2004204839 A JP 2004204839A JP 2003357151 A JP2003357151 A JP 2003357151A JP 2003357151 A JP2003357151 A JP 2003357151A JP 2004204839 A JP2004204839 A JP 2004204839A
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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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/005—Sealing means between non relatively rotating elements
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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
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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
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0804—Non-oxide ceramics
- F05C2203/083—Nitrides
- F05C2203/0839—Nitrides of boron
-
- 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
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/11—Shroud seal segments
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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
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/13—Two-dimensional trapezoidal
- F05D2250/131—Two-dimensional trapezoidal polygonal
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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
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/21—Oxide ceramics
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/22—Non-oxide ceramics
- F05D2300/226—Carbides
- F05D2300/2261—Carbides of silicon
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/22—Non-oxide ceramics
- F05D2300/228—Nitrides
- F05D2300/2283—Nitrides of silicon
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Gasket Seals (AREA)
Abstract
【解決手段】 シュラウドセグメント(12)の半径方向外側表面(24)は、円周方向に間隔を置いて配置された対向する第1及び第2の端縁部表面陥凹部(32、34)を含む。表面陥凹部は、セグメント(12、14)間、又はセグメントとエンジン部材との間に形成された表面陥凹部(36)内に半径方向外側の流体シール部材(44)を受ける形状のシール面(40)を有する。凹部シール面(40)は、円弧状の移行面(42)によりシュラウドセグメントの半径方向外側表面(24)と結合されている。表面陥凹部(32、34)は第1の形状を備え、該陥凹部(32、34)内に配置された流体シール部材(44)は、第1の形状と形状が一致する第2の形状の表面(46)を備える。
【選択図】 図2
Description
12 第1のシュラウドセグメント
14 第2のシュラウドセグメント
24 半径方向外側表面
26 半径方向内側表面
38 分離部分
40 陥凹部シール面
42 移行面
44 流体シール部材
46 流体シール部材表面
48 シール保持装置
Claims (16)
- 少なくとも一対の第1(28)及び第2(30)の間隔を置いて配置された対向する外側表面端部間で延びる半径方向外側表面(24)を有するシュラウドセグメント本体(22)を含むタービンエンジンのシュラウドセグメント(12)であって、
前記対における前記半径方向外側表面(24)の前記第1及び第2の外側端縁部(28、30)の少なくとも1つが、表面陥凹部(32/34)を含み、前記表面陥凹部(32/34)が、該陥凹部(32/34)に沿って第1の形状の陥凹部シール面(40)を含み、
前記陥凹部シール面(40)が、円弧状の移行面(42)により前記シュラウド本体の半径方向外側表面(24)と結合されている、
ことを特徴とするシュラウドセグメント(12)。 - 前記第1及び第2の外側端縁部(28、30)の各々が、表面陥凹部(32、34)を含むことを特徴とする、請求項1に記載のシュラウドセグメント(12)。
- 前記一対の第1及び第2の外側表面端部(28、30)が、円周方向(16)に間隔を置いて配置され、
前記陥凹部(32、34)の前記陥凹部シール面(40)が、該陥凹部(32、34)に沿って軸方向(18)に延びている、
ことを特徴とする、請求項1に記載のシュラウドセグメント(12)。 - 前記一対の第1及び第2の外側表面端部(31)が、軸方向(18)に間隔を置いて配置され、
前記陥凹部(32、34)の前記陥凹部シール面(40)が、該陥凹部(32、34)に沿って円周方向(16)に延びている、
ことを特徴とする、請求項1に記載のシュラウドセグメント(12)。 - 前記シュラウドセグメント(10)が、円周方向(16)に間隔を置いて配置された第2の対の第1及び第2の外側表面端部(28、30)を含み、該第2の対の前記陥凹部シール面(40)が、軸方向(18)に延びていることを特徴とする、請求項4に記載のシュラウドセグメント(12)。
- 前記陥凹部シール面(40)の前記第1の形状が、平坦であることを特徴とする、請求項1に記載のシュラウドセグメント(12)。
- 前記シュラウドセグメント(12)が、室温で測定して約1%より大きくない引張り延性を有する低延性材料で作られていることを特徴とする、請求項1に記載のシュラウドセグメント(12)。
- 前記低延性材料が、セラミックマトリックス複合材料であることを特徴とする、請求項7に記載のシュラウドセグメント(12)。
- 複数の円周方向(16)に配置されたシュラウドセグメント(12、14)を含むタービンエンジンのシュラウド組立体(10)であって、
前記シュラウドセグメント(12、14)は、該シュラウドセグメント(12)の前記第1及び第2の外側端縁部(28、30)が並置された隣接する第2の部材(14)の表面(40)から該表面との間の分離部分(38)により分離された状態で、請求項1に記載の該シュラウドセグメント(12)を含み、
前記表面陥凹部(32、34)内に保持されかつ前記分離部分(38)を跨いでいる流体シール部材(44)が設けられ、
前記流体シール部材(44)が、前記陥凹部シール面(40)の前記第1の形状と形状が一致しかつ前記分離部分(38)に沿って前記陥凹部シール面(40)と接触するように並置された第2の形状の流体シール部材表面(46)を含む、
ことを特徴とする、シュラウド組立体(10)。 - 前記流体シール部材(44)が、前記陥凹部シール面(40)との接触を可能にするのに十分な撓み性を有することを特徴とする、請求項9に記載のシュラウド組立体(10)。
- 前記一対の第1及び第2の外側表面端縁部(28、30)が、円周方向(16)に間隔を置いて配置され、
前記シュラウドセグメント(12、14)は、円周方向(16)に隣接する前記第1及び第2の外側端縁部(28、30)の前記陥凹部(32、34)が該陥凹部の間に前記第1の形状の陥凹部シール面(40)と軸方向(18)に延びる分離部分(38)とを含む軸方向(18)に延びる表面陥凹部(36)を形成する状態で、円周方向(16)に配置され、
前記流体シール部材(44)が、前記分離部分(38)に沿って軸方向(18)に配置されている、
ことを特徴とする、請求項9に記載のシュラウド組立体(10)。 - 前記シュラウドセグメント(12、14)の各々が、室温で測定して約1%より大きくない引張り延性を有する低延性材料で作られていることを特徴とする、請求項9に記載のシュラウド組立体(10)。
- 前記低延性材料が、セラミックマトリックス複合材料であることを特徴とする、請求項12に記載のシュラウド組立体(10)。
- 前記流体シール部材(44)が、室温で測定して約1%より大きくない引張り延性を有する低延性材料で作られていることを特徴とする、請求項12に記載のシュラウド組立体(10)。
- 前記低延性材料が、セラミックマトリックス複合材料であることを特徴とする、請求項14に記載のシュラウド組立体(10)。
- 前記陥凹部シール面(40)の前記第1の形状と前記流体部材シール面(46)の前記第2の形状との両方が、平坦であることを特徴とする、請求項9に記載のシュラウド組立体(10)。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/325,779 US6893214B2 (en) | 2002-12-20 | 2002-12-20 | Shroud segment and assembly with surface recessed seal bridging adjacent members |
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JP2004204839A true JP2004204839A (ja) | 2004-07-22 |
JP2004204839A5 JP2004204839A5 (ja) | 2006-11-30 |
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JP2003357151A Pending JP2004204839A (ja) | 2002-12-20 | 2003-10-17 | 隣接する部材間を跨ぐ表面埋込形シールを有するシュラウドセグメント及び組立体 |
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US (1) | US6893214B2 (ja) |
EP (1) | EP1431518A3 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
US6893214B2 (en) | 2005-05-17 |
EP1431518A2 (en) | 2004-06-23 |
US20040120808A1 (en) | 2004-06-24 |
EP1431518A3 (en) | 2006-08-23 |
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