JP2016205384A - シュラウド及びロータの耐久性に影響を与えるポロシティ変動型皮膜 - Google Patents
シュラウド及びロータの耐久性に影響を与えるポロシティ変動型皮膜 Download PDFInfo
- Publication number
- JP2016205384A JP2016205384A JP2016079941A JP2016079941A JP2016205384A JP 2016205384 A JP2016205384 A JP 2016205384A JP 2016079941 A JP2016079941 A JP 2016079941A JP 2016079941 A JP2016079941 A JP 2016079941A JP 2016205384 A JP2016205384 A JP 2016205384A
- Authority
- JP
- Japan
- Prior art keywords
- density
- coating
- region
- density region
- shroud
- 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.)
- Pending
Links
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
- F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
- F01D11/122—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with erodable or abradable material
-
- 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
- F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5024—Silicates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5093—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with elements other than metals or carbon
- C04B41/5096—Silicon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
-
- 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
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/288—Protective coatings for blades
-
- 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
- F05D2300/514—Porosity
-
- 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
- F05D2300/522—Density
-
- 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
- F05D2300/6033—Ceramic matrix composites [CMC]
-
- 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
- F05D2300/611—Coating
Abstract
Description
12 中心軸線
14 コアガスタービンエンジン
16 ファン部
18 外側ケーシング
20 環状入口
22 ブースタ圧縮機
24 高圧圧縮機、高圧多段軸流圧縮機
26 燃焼器
28 高圧タービン
30 高圧駆動軸
32 低圧タービン
34 低圧駆動軸
36 排気ノズル
38 ファンロータ
40 環状ファンケーシング
42 出口ガイドベーン
44 ファンロータブレード
46 下流部
48 気流導管
50 空気流
52 入口
54 第1の圧縮空気流
56 第2の圧縮空気流
58 気流
60 燃焼生成物
62 第1の段のタービンノズル
64 第1の段のタービンロータ
66 ノズルベーン
68 弓形外側バンド
70 弓形内側バンド
72 ノズルセグメント、ノズル
74 ロータブレード
76 ロータディスク
78 タービンシュラウド
80 シュラウドセグメント、シュラウド
81 密度変動型皮膜系
82 シュラウドハンガー
83 前縁
84 燃焼ゾーン
85 後縁
90 第1の密度領域
92 第2の密度領域
93 ブレードのトラック部分
94 第3の密度領域
100 構成要素
102 内部皮膜
104 外部皮膜
Claims (10)
- 構成要素上の密度変動型皮膜系であって、密度変動型皮膜系は、
構成要素上の外部皮膜を含み、外部皮膜が第1の密度領域と第2の密度領域とを有し、第1の密度領域が第2の密度領域よりも密度が高い、密度変動型皮膜系。 - 構成要素がCMC構成要素であり、外部皮膜が希土類ケイ酸塩を含む、請求項1に記載の密度変動型皮膜系。
- 構成要素と外部皮膜との間に配置された内部皮膜をさらに含む、請求項1に記載の密度変動型皮膜系。
- 外部皮膜がまた、第2の密度領域よりも密度が高い第3の密度領域を有し、第2の密度領域が、第1の皮膜領域と第3の皮膜領域との間に配置される、請求項1に記載の密度変動型皮膜系。
- 構成要素が、ガスタービンエンジンのシュラウドであり、第1の皮膜領域が、シュラウドの前縁を覆い、第2の皮膜領域が、シュラウドのブレードのトラック部分を覆い、第3の皮膜領域が、シュラウドの後縁を覆う、請求項4に記載の密度変動型皮膜系。
- 第1の密度領域と第2の密度領域との間の遷移が、徐々に減少する、請求項1に記載の密度変動型皮膜系。
- 第1の密度領域が、第2の密度領域だけではなく密度も実質的に同一の化学組成を有する、請求項1に記載の密度変動型皮膜系。
- 圧縮機と、
燃焼器と、
タービンと、
圧縮機又はタービンの一方に配置され、その上に外部皮膜を有するセラミックマトリックス複合材料を含むタービンシュラウドとを含み、外部皮膜は、第1の密度領域と、第2の密度領域とを有し、第1の密度領域は、第2の密度領域よりも密度が高い、ガスタービンエンジン。 - 圧縮機又はタービンの一方に配置され、タービンシュラウドが半径方向外側先端のすぐ隣に配置されるように、半径方向外側先端を画成するロータブレードをさらに含み、第2の密度領域は、半径方向外側先端の移動経路に対応するブレードのトラック領域を画成する、請求項8に記載のガスタービンエンジン。
- 外部皮膜が、密度を除いて、全体に実質的に同一の化学組成を有し、第1の密度領域と第2の密度領域との間の遷移が、徐々に減少する、請求項8に記載のガスタービンエンジン。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/689,354 US20160305319A1 (en) | 2015-04-17 | 2015-04-17 | Variable coating porosity to influence shroud and rotor durability |
US14/689,354 | 2015-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2016205384A true JP2016205384A (ja) | 2016-12-08 |
Family
ID=55754164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016079941A Pending JP2016205384A (ja) | 2015-04-17 | 2016-04-13 | シュラウド及びロータの耐久性に影響を与えるポロシティ変動型皮膜 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160305319A1 (ja) |
EP (1) | EP3081764A1 (ja) |
JP (1) | JP2016205384A (ja) |
CN (1) | CN106050324A (ja) |
CA (1) | CA2927194A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3044946B1 (fr) * | 2015-12-14 | 2018-01-12 | Safran Aircraft Engines | Revetement abradable a densite variable |
FR3044945B1 (fr) * | 2015-12-14 | 2018-01-12 | Centre National De La Recherche Scientifique | Revetement abradable a densite variable |
US10017844B2 (en) | 2015-12-18 | 2018-07-10 | General Electric Company | Coated articles and method for making |
US10934626B2 (en) | 2017-04-21 | 2021-03-02 | General Electric Company | Segmented environmental barrier coating systems and methods of forming the same |
US10900371B2 (en) | 2017-07-27 | 2021-01-26 | Rolls-Royce North American Technologies, Inc. | Abradable coatings for high-performance systems |
US10858950B2 (en) | 2017-07-27 | 2020-12-08 | Rolls-Royce North America Technologies, Inc. | Multilayer abradable coatings for high-performance systems |
US11739650B2 (en) * | 2018-02-27 | 2023-08-29 | Rolls-Royce Corporation | Hybrid airfoil coatings |
US10808565B2 (en) * | 2018-05-22 | 2020-10-20 | Rolls-Royce Plc | Tapered abradable coatings |
US11313243B2 (en) | 2018-07-12 | 2022-04-26 | Rolls-Royce North American Technologies, Inc. | Non-continuous abradable coatings |
US11608749B2 (en) * | 2019-08-23 | 2023-03-21 | Raytheon Technologies Corporation | Airfoil having environmental barrier topcoats that vary in composition by location |
US11732598B2 (en) | 2021-12-17 | 2023-08-22 | Rolls-Royce Corporation | Ceramic matrix composite turbine shroud shaped for minimizing abradable coating layer |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS595808A (ja) * | 1982-06-17 | 1984-01-12 | ユナイテツド・テクノロジ−ズ・コ−ポレイシヨン | ガスタ−ビンエンジンのセラミツクフエ−シングされた外側エアシ−ル |
JP2007008806A (ja) * | 2005-06-13 | 2007-01-18 | General Electric Co <Ge> | シリコン含有基材の外部ebl用の耐食密封剤および同物を製造するプロセス |
JP2007063670A (ja) * | 2005-09-01 | 2007-03-15 | United Technol Corp <Utc> | ハイブリッド式断熱被膜の適用方法及び被覆物品 |
JP2007327139A (ja) * | 2006-06-08 | 2007-12-20 | Sulzer Metco Us Inc | 摩耗性を有するジスプロシア安定化ジルコニア |
JP2008133827A (ja) * | 2006-11-08 | 2008-06-12 | General Electric Co <Ge> | 耐酸化性を得るためのセラミック耐食性コーティング |
JP2010144211A (ja) * | 2008-12-18 | 2010-07-01 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング層、タービン部材及び遮熱コーティング層の形成方法 |
US20110103940A1 (en) * | 2009-10-30 | 2011-05-05 | Sophie Duval | Abradable coating system |
US20130170047A1 (en) * | 2011-12-29 | 2013-07-04 | Fu-Tien Weng | Microlens structure and fabrication method thereof |
WO2014057194A1 (fr) * | 2012-10-11 | 2014-04-17 | Turbomeca | Ensemble rotor-stator pour moteur a turbine a gaz |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9513252D0 (en) * | 1995-06-29 | 1995-09-06 | Rolls Royce Plc | An abradable composition |
US6758653B2 (en) * | 2002-09-09 | 2004-07-06 | Siemens Westinghouse Power Corporation | Ceramic matrix composite component for a gas turbine engine |
US20080081109A1 (en) * | 2006-09-29 | 2008-04-03 | General Electric Company | Porous abradable coating and method for applying the same |
US8124252B2 (en) * | 2008-11-25 | 2012-02-28 | Rolls-Royce Corporation | Abradable layer including a rare earth silicate |
US20150354393A1 (en) * | 2014-06-10 | 2015-12-10 | General Electric Company | Methods of manufacturing a shroud abradable coating |
US10132185B2 (en) * | 2014-11-07 | 2018-11-20 | Rolls-Royce Corporation | Additive process for an abradable blade track used in a gas turbine engine |
-
2015
- 2015-04-17 US US14/689,354 patent/US20160305319A1/en not_active Abandoned
-
2016
- 2016-04-13 JP JP2016079941A patent/JP2016205384A/ja active Pending
- 2016-04-14 CA CA2927194A patent/CA2927194A1/en not_active Abandoned
- 2016-04-14 EP EP16165199.7A patent/EP3081764A1/en not_active Withdrawn
- 2016-04-18 CN CN201610238507.XA patent/CN106050324A/zh active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS595808A (ja) * | 1982-06-17 | 1984-01-12 | ユナイテツド・テクノロジ−ズ・コ−ポレイシヨン | ガスタ−ビンエンジンのセラミツクフエ−シングされた外側エアシ−ル |
JP2007008806A (ja) * | 2005-06-13 | 2007-01-18 | General Electric Co <Ge> | シリコン含有基材の外部ebl用の耐食密封剤および同物を製造するプロセス |
JP2007063670A (ja) * | 2005-09-01 | 2007-03-15 | United Technol Corp <Utc> | ハイブリッド式断熱被膜の適用方法及び被覆物品 |
JP2007327139A (ja) * | 2006-06-08 | 2007-12-20 | Sulzer Metco Us Inc | 摩耗性を有するジスプロシア安定化ジルコニア |
JP2008133827A (ja) * | 2006-11-08 | 2008-06-12 | General Electric Co <Ge> | 耐酸化性を得るためのセラミック耐食性コーティング |
JP2010144211A (ja) * | 2008-12-18 | 2010-07-01 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング層、タービン部材及び遮熱コーティング層の形成方法 |
US20110103940A1 (en) * | 2009-10-30 | 2011-05-05 | Sophie Duval | Abradable coating system |
US20130170047A1 (en) * | 2011-12-29 | 2013-07-04 | Fu-Tien Weng | Microlens structure and fabrication method thereof |
WO2014057194A1 (fr) * | 2012-10-11 | 2014-04-17 | Turbomeca | Ensemble rotor-stator pour moteur a turbine a gaz |
Also Published As
Publication number | Publication date |
---|---|
CN106050324A (zh) | 2016-10-26 |
EP3081764A1 (en) | 2016-10-19 |
CA2927194A1 (en) | 2016-10-17 |
US20160305319A1 (en) | 2016-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2016205384A (ja) | シュラウド及びロータの耐久性に影響を与えるポロシティ変動型皮膜 | |
EP2586990B1 (en) | Integrated case and stator | |
EP3181829B1 (en) | Gas turbine engine turbine cooling system | |
EP3102794B1 (en) | Blade outer air seal mount | |
JP2017096269A (ja) | ガスタービンエンジンファン | |
US20180230839A1 (en) | Turbine engine shroud assembly | |
US10436054B2 (en) | Blade outer air seal for a gas turbine engine | |
CA2928976C (en) | System for thermally isolating a turbine shroud | |
JP2017198184A (ja) | ロータとステータとの間にリムシールを有するガスタービンエンジン | |
US10422244B2 (en) | System for cooling a turbine shroud | |
JP2006200530A (ja) | ロータアセンブリ先端隙間を維持する方法および装置 | |
JP2019056370A (ja) | 二重反転タービン用のインターセージシールアセンブリ | |
JP2016160932A (ja) | エンジン部品用の内部耐熱皮膜 | |
US10408075B2 (en) | Turbine engine with a rim seal between the rotor and stator | |
US20200049072A1 (en) | Temperatures in gas turbine engines | |
CN106968798A (zh) | 用于燃气涡轮发动机的点火器 | |
US10378453B2 (en) | Method and assembly for reducing secondary heat in a gas turbine engine | |
JP2017198187A (ja) | 冷却流体通路を有するガスタービンエンジン | |
CN110017211A (zh) | 具有密封件的涡轮发动机 | |
EP3553279A1 (en) | Blade outer air seal cooling fin | |
US20170211404A1 (en) | Blade outer air seal having surface layer with pockets | |
JP2010084766A (ja) | ガスタービンエンジン用タービンノズル | |
US20140140841A1 (en) | Turbine bucket shroud arrangement and method of controlling turbine bucket interaction with an adjacent turbine bucket | |
US9869183B2 (en) | Thermal barrier coating inside cooling channels |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170509 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20170808 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20171006 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20171107 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20180424 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20180723 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20181211 |