WO2012005324A1 - タービン翼、及び、エンジン部品 - Google Patents
タービン翼、及び、エンジン部品 Download PDFInfo
- Publication number
- WO2012005324A1 WO2012005324A1 PCT/JP2011/065580 JP2011065580W WO2012005324A1 WO 2012005324 A1 WO2012005324 A1 WO 2012005324A1 JP 2011065580 W JP2011065580 W JP 2011065580W WO 2012005324 A1 WO2012005324 A1 WO 2012005324A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wall
- turbine blade
- turbine
- cooling
- bottomed
- Prior art date
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Classifications
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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
- 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
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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
- 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
- F01D5/182—Transpiration cooling
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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
- 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
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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
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- 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
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/16—Cooling of plants characterised by cooling medium
- F02C7/18—Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
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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
- F05D2250/18—Two-dimensional patterned
- F05D2250/185—Two-dimensional patterned serpentine-like
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- 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
Definitions
- the present invention relates to an engine component used in a gas turbine engine such as an aircraft engine or an industrial gas turbine engine, and more particularly to a turbine blade.
- Patent Document 1 discloses a technique for improving cooling of turbine blades.
- a cooling passage through which cooling air (a part of compressed air) flows is formed.
- a bottomed groove [bottomed ⁇ slot] extending in the span direction (blade height direction) is formed on the blade surface of the turbine blade.
- a plurality of ejection holes [ejection holes] for ejecting cooling air are formed at intervals in the span direction at the bottom portion [bottom] of the bottomed groove. Each ejection hole communicates with the cooling passage.
- the cooling air extracted from the compressor or fan flows into the cooling passage and the turbine blades are cooled from inside by convective cooling (internal cooling).
- Cooling air that is convectively cooled on the turbine blades is ejected from a plurality of jet holes to form a cooling layer that covers the blade surface of the turbine blade.
- the turbine blades are cooled by film cooling (external cooling ]).
- the cooling air ejected from the ejection hole diffuses in the span direction in the bottomed groove, stays in the bottomed groove and takes heat away, then exits the bottomed groove and extends the cooling layer over a wide area. To form. As a result, turbine blade cooling is improved.
- An object of the present invention is to provide a turbine blade and an engine component that can improve cooling without causing a decrease in efficiency.
- a first feature of the present invention is a turbine blade used in a turbine of a gas turbine engine, which is cooled by cooling air, the cooling passage formed inside the turbine blade and through which the cooling air flows, and the turbine A plurality of bottomed holes formed on the blade surface of the blade and having an inclined downstream inner wall and a cooling passage formed at the bottom of each of the plurality of bottomed holes and ejecting the cooling air
- a turbine blade wherein the ejection hole is formed so that a center line of the ejection hole is along the downstream inner wall.
- the turbine blade includes a turbine rotor blade [turbine rotor ⁇ blade] and a turbine stator blade [turbine stator vane].
- the blade surface [blade surface] includes a leading edge [leading edge], a trailing edge [trailing edge], an abdominal surface [pressure surface], and a back surface [suction surface].
- the bottomed hole [bottomed recess] includes a bottomed groove [bottomed slot].
- the turbine blades when cooling air flows into the cooling passage during operation of the gas turbine engine, the turbine blades are cooled by convection cooling (internal cooling) from the inside.
- the cooling air after convection cooling is ejected from the plurality of ejection holes to form a cooling layer that covers the blade surface of the turbine blade.
- the turbine blade is cooled by film cooling (external cooling) by the cooling layer.
- the downstream inner wall of the bottomed hole is inclined and the ejection hole is formed so that the center line of the ejection hole is along the downstream inner wall, so that the blade shape [airfoil] of the turbine blade is not impaired.
- the jet angle of the cooling air from the jet hole can be reduced.
- the Coanda effect of the cooling air can be sufficiently obtained.
- the downstream inner wall is inclined, the collision between the combustion gas and the downstream inner wall is mitigated, and separation of the combustion gas from the blade surface is reduced. Therefore, it is possible to reduce the aerodynamic loss of the turbine blade while improving the cooling of the turbine blade, and to sufficiently suppress the decrease in efficiency.
- an engine component that is used in a gas turbine engine and that is cooled by cooling air, the cooling passage formed inside the engine component through which the cooling air flows, and the engine component A plurality of bottomed holes formed on the surface and having an inclined downstream inner wall; and a blowout hole that is formed at the bottom of each of the plurality of bottomed holes and that communicates with the cooling passage and ejects the cooling air.
- the engine part is provided with the injection hole formed so that the center line of the injection hole is along the downstream inner wall.
- the engine component includes a turbine blade (including a turbine blade and a turbine stationary blade), a shroud, a combustor liner, and the like.
- the engine components when cooling air flows into the cooling passage during operation of the gas turbine engine, the engine components are cooled from the inside by convection cooling (internal cooling). Further, the cooling air after convection cooling is ejected from the plurality of ejection holes to form a cooling layer that covers the surface of the engine component. The engine parts are cooled by film cooling (external cooling) by the cooling layer.
- the injection hole is formed so that the downstream inner wall of the bottomed hole is inclined and the center line of the injection hole is along the downstream inner wall, the engine component against the combustion gas flowing around the engine component
- the jet angle of the cooling air from the jet hole can be reduced without impairing the aerodynamic shape / hydrodynamic shape.
- the Coanda effect of the cooling air can be sufficiently obtained.
- the downstream inner wall is inclined, the collision between the combustion gas and the downstream inner wall is mitigated, and separation of the combustion gas from the blade surface is reduced. Therefore, it is possible to reduce the loss of the combustion gas flow caused by the engine component while improving the cooling of the engine component, and sufficiently suppress the decrease in efficiency.
- FIG. 1 is a perspective view of the turbine rotor blade of the first embodiment.
- FIG. 2 is a longitudinal sectional view along the span direction of the turbine rotor blade.
- 3A is a cross-sectional view taken along the line III-III in FIG. 1
- FIGS. 3B and 3C are cross-sectional views showing modifications of the shape of the bottomed hole in FIG. 3A.
- FIG. 4A is a cross-sectional view showing a modification of the shape of the ejection hole
- FIG. 4B is a plan view showing a modification of the shape of the ejection hole.
- FIG. 5 is a perspective view of the turbine rotor blade of the second embodiment.
- FIG. 6A is a cross-sectional view taken along the chord direction of the turbine rotor blade of the third embodiment
- FIG. 6B is a diagram of the portion indicated by the arrow VIB in FIG. It is an expanded sectional view.
- the turbine rotor blade 1 of the present embodiment is used for a turbine (not shown) of a gas turbine engine such as an aircraft engine or an industrial gas turbine engine. As shown in FIGS. 1 and 2, the turbine rotor blade 1 receives cooling air (part of compressed air) CA extracted from a compressor (not shown) or a fan (not shown) of a gas turbine engine. It is cooled using.
- cooling air part of compressed air
- the turbine rotor blade 1 is manufactured by lost wax precision casting [lost wax precision casting], and a rotor blade body that obtains rotational force by a combustion gas HG (see FIG. 3) from a combustor (not shown) of a gas turbine engine [ rotor blade body] 3.
- a platform 5 is integrally formed at the base end of the rotor blade body 3.
- a dovetail 7 is integrally formed on the platform 5. The dovetail 7 is fitted into fitting grooves [not shown] formed around a turbine disk (not shown).
- an introduction passage 9 for introducing the extracted cooling air CA is formed from the dovetail 7 to the inside of the platform 5. Further, a plurality of partition walls [partitions] 11 extending in the span direction (direction from the platform 5 to the end face [end face] 3t of the blade main body 3) are formed inside the blade main body 3.
- the partition wall 11 defines a serpentine cooling passage 13 through which the cooling air CA flows. That is, the meandering cooling passage 13 is formed inside the rotor blade body 3 and communicates with the introduction passage 9.
- a plurality of bottomed holes 15 are formed in the abdominal surface 3 v of the rotor blade body 3.
- the bottomed holes 15 are arranged in a plurality of rows in the cord direction (direction from the front edge 3 e to the rear edge 3 p of the rotor blade body 3), and each row includes a plurality of bottomed holes 15. .
- the downstream inner wall 15a of each bottomed hole 15 is inclined (inclination with respect to the thickness direction T of the rotor blade body 3: combustion gas flow).
- the upstream inner wall 15b may be formed vertically without being inclined (parallel to the thickness direction T: perpendicular to the flow direction of the combustion gas: (An angle formed by the upstream inner wall 15b and the abdominal surface 3v is a right angle.)
- the separation occurring in the bottomed hole 15 can be delayed (the separation position is shifted downstream), so that the aerodynamic loss can be further reduced.
- a circular ejection hole (film-cooling) that ejects the cooling air CA (film-cooling hole]) 17 is formed at the bottom [bottom] 15c of each bottomed hole 15 (including the bottom side of the upstream inner wall 15b) and communicates with the cooling passage 13.
- Each ejection hole 17 is formed so that the center line 17L of the ejection hole 17 is substantially along the downstream inner wall 15a of the bottomed hole 15.
- the inclination angle ⁇ of the center line 17L with respect to a plane (virtual plane) VP parallel to the downstream inner wall 15a of the bottomed hole 15 is set to ⁇ 20 degrees or less ( ⁇ 20 to +20 degrees). . If the inclination angle ⁇ is outside the range of ⁇ 20 degrees, the Coanda effect of the cooling air CA ejected from the ejection hole 17 cannot be sufficiently obtained.
- the shape of the ejection hole 17 may be other shapes such as an ellipse or a rectangle.
- the shape of the ejection hole 17 is such that the hole cross-sectional area (area of the cross section perpendicular to the central axis of the hole) is expanded toward the outlet.
- the diffuser hole has a diffuser hole. That is, the ejection hole 17 is preferably a tapered hole that is gradually expanded toward the outlet.
- a plurality of supplemental injection holes 19 for injecting the cooling air CA are formed in the leading edge 3 e and the end surface 3 t of the moving blade body 3 and communicated with the cooling passage 13.
- a plurality of exhaust holes [eduction holes] 21 for discharging the cooling air CA are formed in the rear edge 3p of the rotor blade body 3 and communicate with the cooling passage 13.
- auxiliary injection holes 19 formed on the front edge 3e and the abdominal surface 3v may also be formed on the back surface 3b of the rotor blade body 3.
- the turbine rotor blade 1 When the cooling air CA flows into the cooling passage 13 via the introduction passage 9 during operation of the gas turbine engine, the turbine rotor blade 1 is cooled from the inside by convection cooling (internal cooling). Further, the cooling air CA after the convection cooling is ejected from the ejection holes 17 and the sub-ejection holes 19 to form a cooling layer CF (see FIG. 3A) that covers the turbine rotor blade 1. The turbine rotor blade 1 is cooled from the outside by film cooling (external cooling) by the cooling layer CF. A part of the cooling air CA after the convection cooling of the turbine rotor blade 1 is also discharged from the discharge hole 21.
- convection cooling internal cooling
- the cooling air CA after the convection cooling is ejected from the ejection holes 17 and the sub-ejection holes 19 to form a cooling layer CF (see FIG. 3A) that covers the turbine rotor blade 1.
- the turbine rotor blade 1 is cooled from the outside by film cooling (
- the ejection hole can be obtained without impairing the blade shape of the turbine rotor blade 1.
- the ejection angle of the cooling air CA from 17 can be reduced. As a result, the Coanda effect of the cooling air CA can be sufficiently obtained.
- downstream inner wall 15a of the bottomed hole 15 is inclined, the collision between a part of the combustion gas HG and the downstream inner wall 15a is alleviated, and the combustion gas HG downstream of the bottomed hole 15 is reduced. Separation from the blade surface can be reduced. In particular, as shown in FIG. 3 (b), if the upper edge of the downstream inner wall 15a is a smooth curved surface, the separation of the combustion gas HG from the blade surface can be further reduced.
- the cooling of the turbine blade 1 can be improved, the aerodynamic loss of the turbine blade 1 can be reduced, and the engine efficiency of the gas turbine engine can be sufficiently suppressed.
- the shape of the ejection hole 17 is an internally expanded shape, the adhesion of the cooling air CA to the abdominal surface 3v is increased, and the turbine rotor blade 1 Cooling can be further improved.
- the turbine blade 23 of the present embodiment has substantially the same configuration as the turbine blade 1 of the first embodiment described above.
- the same or equivalent components as those of the turbine rotor blade 1 will be denoted by the same reference numerals and description thereof will be omitted here.
- a plurality of bottomed grooves (a kind of bottomed holes) 25 extending in the span direction are formed on the abdominal surface 3 v of the rotor blade body 3.
- the downstream inner wall 25 a of each bottomed groove 25 is inclined (inclined with respect to the thickness direction T of the rotor blade body 3: inclined with respect to the flow direction of the combustion gas: downstream).
- the angle formed between the side inner wall 25a and the ventral surface 3v is an obtuse angle
- the upstream inner wall 25b of each bottomed groove 25 is also symmetrically inclined (inclined with respect to the thickness direction T: inclined with respect to the combustion gas flow direction).
- the angle formed by the upstream inner wall 25b and the abdominal surface 3v is an obtuse angle).
- the plurality of ejection holes 17 described above are formed at intervals in the span direction at the bottom 25c of each bottomed groove 25 (including the bottom of the upstream inner wall 25b).
- the cross-sectional shape of the bottomed groove 25 can be modified as described in the first embodiment (see FIGS. 3A to 3C), and the shape of the ejection hole 17 is also the same as in the first embodiment. It can be modified as described.
- the cooling air CA ejected from the plurality of ejection holes 17 in each bottomed groove 25 is easily diffused in the span direction, and the cooling layer CF is more Widely formed.
- cooling of the turbine rotor blade 1 is improved.
- the number of bottomed grooves (a kind of bottomed holes) 25 can be reduced and the manufacturing cost is lower than that of the turbine rotor blade 1 of the first embodiment. is there.
- FIGS. 6 (a) and 6 (b) A third embodiment will be described with reference to FIGS. 6 (a) and 6 (b).
- “D” indicates the downstream direction of the combustion gas
- “U” indicates the upstream direction.
- the turbine blade 27 of the present embodiment has substantially the same configuration as the turbine blade 1 of the first embodiment (or the turbine blade 23 of the second embodiment) described above.
- the same or equivalent components as those of the turbine rotor blade 1 will be denoted by the same reference numerals and description thereof will be omitted here.
- the bottomed hole 15 of the first embodiment (or the bottomed groove 25 of the second embodiment) described above is a partition of the abdominal surface 3v of the wing body 3. It is formed at a location corresponding to the wall 11. Further, the ejection hole 17 in the bottomed hole 15 (bottomed groove 25) is disposed immediately upstream of the partition wall 11.
- the influence on the shape of the cooling passage 13 can be reduced. More specifically, since the bottomed hole 15 projecting into the cooling passage 13 is not provided in the center of the passage, the flow of the cooling air CA in the cooling passage 13 is not easily obstructed, and the risk at the time of manufacturing turbine blades by precision casting Is low. Moreover, since the bottomed hole 15 (or bottomed groove 25) is formed at the position of the partition wall 11, the risk of reducing the rigidity and strength of the blade body 3 is also low. Further, the cooling air CA after the convection cooling is smoothly ejected from the ejection hole 17 while being guided by the partition wall 11.
- the technical thought applied to the turbine blade 1 is engines other than turbine blades, such as a turbine stationary blade, a shroud, and a combustor liner. Can be applied to parts.
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Abstract
Description
第1実施形態について図1~図4を参照しつつ説明する。なお、図中、「D」は燃焼ガスの下流方向、「U」は上流方向をそれぞれ示している。
第2実施形態について図5を参照しつつ説明する。なお、図中、「D」は燃焼ガスの下流方向、「U」は上流方向をそれぞれ示している。
第3実施形態について図6(a)及び図6(b)を参照しつつ説明する。なお、図中、「D」は燃焼ガスの下流方向、「U」は上流方向をそれぞれ示している。
Claims (9)
- ガスタービンエンジンのタービンに用いられる、冷却空気によって冷却されるタービン翼であって、
前記タービン翼の内部に形成された、冷却空気が流れる冷却通路と、
前記タービン翼の翼面に形成された、下流側内壁が傾斜された複数の有底穴と、
複数の前記有底穴のそれぞれの底部に形成された、前記冷却通路と連通して前記冷却空気を噴き出す噴出孔と、を備え、
前記噴出孔の中心線が前記下流側内壁に沿うように、前記噴出孔が形成されている、タービン翼。 - 前記有底穴の前記下流側内壁に平行な面に対する前記噴出孔の前記中心線の傾斜角が±20度の範囲内に設定されている、請求項1に記載のタービン翼。
- 前記噴出孔が出口に向けて孔断面積が大きくされた形状を有している、請求項1又は請求項2に記載のタービン翼。
- 複数の前記有底穴の少なくとも一つがスパン方向へ延びる有底溝として形成され、前記有底溝の底部に複数の前記噴出孔がスパン方向に間隔を置いて形成されている、請求項1~3のいずれかに記載のタービン翼。
- 前記噴出孔の上流側内壁が傾斜されている、請求項1~4のうちのいずれかに記載のタービン翼。
- 前記噴出孔の前記下流側内壁の端縁及び前記上流側内壁の端縁のうちの少なくとも一方が滑らかな曲面として形成されている、請求項5に記載のタービン翼。
- 前記噴出孔の上流側内壁が前記翼面対して直角に形成されている、請求項1~4のいずれかに記載のタービン翼。
- 前記タービン翼の内部にスパン方向へ延びる仕切壁が形成され、前記仕切壁によって前記冷却通路が区画されており、
前記有底穴の少なくとも一つが、前記翼面の前記仕切壁に対応する位置に形成されている、請求項1~7のいずれかに記載のタービン翼。 - ガスタービンエンジンに用いられる、冷却空気によって冷却されるエンジン部品であって、
前記エンジン部品の内部に形成された、冷却空気が流れる冷却通路と、
前記エンジン部品の表面に形成された、下流側内壁が傾斜された複数の有底穴と、
複数の前記有底穴のそれぞれの底部に形成された、前記冷却通路と連通して前記冷却空気を噴き出す噴出孔と、を備え、
前記噴出孔の中心線が前記下流側内壁に沿うように、前記噴出孔が形成されている、エンジン部品。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2804632A CA2804632C (en) | 2010-07-09 | 2011-07-07 | Turbine components having cooling holes in bottomed recesses |
US13/808,641 US9376919B2 (en) | 2010-07-09 | 2011-07-07 | Turbine blade and engine component |
EP11803658.1A EP2592228B1 (en) | 2010-07-09 | 2011-07-07 | Turbine blade and engine component |
KR1020137001551A KR101434926B1 (ko) | 2010-07-09 | 2011-07-07 | 터빈 블레이드, 및 엔진 부품 |
CN201180033360.6A CN102971493B (zh) | 2010-07-09 | 2011-07-07 | 涡轮叶片及发动机部件 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010156949A JP5636774B2 (ja) | 2010-07-09 | 2010-07-09 | タービン翼及びエンジン部品 |
JP2010-156949 | 2010-07-09 |
Publications (1)
Publication Number | Publication Date |
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WO2012005324A1 true WO2012005324A1 (ja) | 2012-01-12 |
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ID=45441301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2011/065580 WO2012005324A1 (ja) | 2010-07-09 | 2011-07-07 | タービン翼、及び、エンジン部品 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9376919B2 (ja) |
EP (1) | EP2592228B1 (ja) |
JP (1) | JP5636774B2 (ja) |
KR (1) | KR101434926B1 (ja) |
CN (1) | CN102971493B (ja) |
CA (1) | CA2804632C (ja) |
WO (1) | WO2012005324A1 (ja) |
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CN103206261A (zh) * | 2012-01-13 | 2013-07-17 | 通用电气公司 | 翼型件 |
JP2014148938A (ja) * | 2013-02-01 | 2014-08-21 | Siemens Ag | ターボ機械のためのフィルム冷却されるタービンブレード |
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KR101839656B1 (ko) | 2015-08-13 | 2018-04-26 | 두산중공업 주식회사 | 가스터빈 블레이드 |
US10378444B2 (en) * | 2015-08-19 | 2019-08-13 | General Electric Company | Engine component for a gas turbine engine |
US20170306764A1 (en) * | 2016-04-26 | 2017-10-26 | General Electric Company | Airfoil for a turbine engine |
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Also Published As
Publication number | Publication date |
---|---|
EP2592228A4 (en) | 2016-04-20 |
US9376919B2 (en) | 2016-06-28 |
KR101434926B1 (ko) | 2014-08-27 |
CA2804632A1 (en) | 2012-01-12 |
US20130108471A1 (en) | 2013-05-02 |
EP2592228B1 (en) | 2019-08-21 |
JP2012017721A (ja) | 2012-01-26 |
CN102971493B (zh) | 2015-08-05 |
CN102971493A (zh) | 2013-03-13 |
KR20130023353A (ko) | 2013-03-07 |
EP2592228A1 (en) | 2013-05-15 |
CA2804632C (en) | 2016-02-16 |
JP5636774B2 (ja) | 2014-12-10 |
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