JP6820272B2 - 低流量枠状チャネルを備えるタービンブレード後縁 - Google Patents
低流量枠状チャネルを備えるタービンブレード後縁 Download PDFInfo
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- 238000001816 cooling Methods 0.000 claims description 84
- 239000012809 cooling fluid Substances 0.000 claims description 35
- 238000005266 casting Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 239000011162 core material Substances 0.000 description 54
- 239000007789 gas Substances 0.000 description 13
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000009432 framing Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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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
- F01D5/187—Convection cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
-
- 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
-
- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
-
- 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
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/21—Manufacture essentially without removing material by casting
-
- 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
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/21—Manufacture essentially without removing material by casting
- F05D2230/211—Manufacture essentially without removing material by casting by precision casting, e.g. microfusing or investment casting
-
- 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
- F05D2240/12—Fluid guiding means, e.g. vanes
- F05D2240/122—Fluid guiding means, e.g. vanes related to the trailing edge of a stator vane
-
- 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
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
-
- 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
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
-
- 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
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/204—Heat transfer, e.g. cooling by the use of microcircuits
-
- 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
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/221—Improvement of heat transfer
- F05D2260/2214—Improvement of heat transfer by increasing the heat transfer surface
- F05D2260/22141—Improvement of heat transfer by increasing the heat transfer surface using fins or ribs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
Claims (10)
- ガスタービンエンジン翼(11)を鋳造するためのコア構造であって、該コア構造は、前記ガスタービンエンジン翼(11)の後縁(13)を成形するための後縁セクション(13a)を有し、前記翼(11)の前縁(12)と後縁(13)との間に軸方向が規定されており、
前記後縁セクション(13a)の少なくとも一部は、
複数の半径方向に延びるチャネル要素(130)と、軸方向に延びる通路要素(128)とによって規定された複数のリブ形成開口(126)であって、該リブ形成開口(126)は、半径方向に整列した縦列(136)に配置されており、1つおきの半径方向に整列した縦列(136)の前記リブ形成開口(126)は、軸方向に整列した横列(138)を形成している、複数のリブ形成開口(126)と、
前記後縁セクション(13a)の半径方向外縁(124)に隣接して配置された半径方向外側の低流量枠状チャネル要素(134)であって、前記半径方向外縁(124)から半径方向内方へ延びる複数の切欠(140)を有している、半径方向外側の低流量枠状チャネル要素(134)と、を備え、
第1の軸方向に整列した半径方向外側の横列(138a)を有する前記リブ形成開口(126)は、前記切欠(140)の遠位部分(144a)が、前記第1の軸方向に整列した半径方向外側の横列(138a)を有するリブ形成開口(126)と軸方向で重なり合うように、半径方向に延在しており、
前記切欠(140)は、第2の軸方向に整列した半径方向外側の横列(138b)の前記リブ形成開口(126)と半径方向で整列しており、
前記第1の軸方向に整列した半径方向外側の横列(138a)は、前記半径方向外縁(124)の最も近くに配置されており、前記第2の軸方向に整列した半径方向外側の横列(138b)は、前記半径方向外縁(124)に2番目に近く配置されており、
前記軸方向に延びる通路要素(128)は、前記半径方向外縁(124)の最も近くに配置された第1の軸方向に延びる通路要素(148a,148b)と、前記半径方向外縁(124)に2番目に近く配置された第2の軸方向に延びる通路要素(150)と、前記半径方向外縁(124)に3番目に近く配置された第3の軸方向に延びる通路要素(152)とを含み、
前記第1の軸方向に延びる通路要素(148a,148b)および前記第2の軸方向に延びる通路要素(150)のうちの少なくとも一方の半径方向高さH1,H2は、前記コア構造内の前記第3の軸方向に延びる通路要素(152)の半径方向高さHよりも大きく、
半径方向高さH1,H2およびHは、約3:2:1の互いに対する比を有し、H1は、Hの約3倍であり、H2は、Hの約2倍である、
ガスタービンエンジン翼(11)を鋳造するためのコア構造。 - 第3の軸方向に整列した半径方向外側の横列(138c)を有する前記リブ形成開口(126)は、前記第2の軸方向に整列した半径方向外側の横列(138b)を有する前記リブ形成開口(126)が、前記第3の軸方向に整列した半径方向外側の横列(138c)を有する前記リブ形成開口(126)と軸方向で重なり合うように、半径方向に延在しており、
前記第3の軸方向に整列した半径方向外側の横列(138c)は、前記半径方向外縁(124)に3番目に近く配置されている、請求項1記載のコア構造。 - 前記第3の軸方向に延びる通路要素(152)の半径方向内側に配置されたその他の前記軸方向に延びる通路要素(128)は、前記半径方向高さHを有する、請求項1記載のコア構造。
- 前記切欠(140)の間の前記半径方向外縁(124)の部分は、実質的に平坦な領域(146)を有する、請求項1記載のコア構造。
- 前記後縁セクションは、該後縁セクションの半径方向内縁に隣接して配置された半径方向内側の低流量枠状チャネル要素をさらに有し、該半径方向内側の低流量枠状チャネル要素は、前記半径方向内縁から半径方向外方へ延びる複数の切欠を有し、
前記リブ形成開口の第1の軸方向に整列した半径方向内側の横列は、前記切欠の遠位部分が、前記第1の軸方向に整列した半径方向内側の横列を有する前記リブ形成開口と軸方向で重なり合うように、半径方向に延在しており、
前記切欠は、前記リブ形成開口の第2の軸方向に整列した半径方向内側の横列の前記リブ形成開口と半径方向で整列しており、
前記リブ形成開口の第1の軸方向に整列した半径方向内側の前記横列は、前記半径方向内縁の最も近くに配置されており、前記リブ形成開口の第2の軸方向に整列した半径方向内側の前記横列は、前記半径方向内縁に2番目に近く配置されている、請求項1記載のコア構造。 - 前記切欠の間の前記半径方向内縁の部分は、実質的に平坦な領域を有する、請求項5記載のコア構造。
- ガスタービンエンジン内の翼(11)であって、
前縁(12)と、後縁(13)と、正圧面と、負圧面(20)と、半径方向内側端部(15)と、先端部キャップ(24)を有する半径方向外側先端部(22)とを形成する外壁であって、前記前縁(12)と前記後縁(13)との間に軸方向が規定されている、外壁と、
前記後縁(13)に隣接して前記外壁の一部に形成され、前記外壁を冷却するための冷却流体を受け取る後縁冷却回路(14,16)と、を備え、該後縁冷却回路(14,16)は、
複数のリブ構造(26,26’)によって画成された、複数の軸方向に延びる通路(28,28’)および複数の半径方向に延びるチャネル(30,30’)であって、前記リブ構造(26,26’)は、半径方向に整列した縦列(36,36’)に配置されており、1つおきの半径方向に整列した縦列(36,36’)の前記リブ構造(26,26’)が、軸方向に整列した横列(38,38’)を形成している、複数の軸方向に延びる通路(28,28’)および複数の半径方向に延びるチャネル(30,30’)と、
前記先端部キャップ(24)に隣接して配置され、該先端部キャップ(24)から半径方向内方へ延びる複数の突出部(40)を有する、半径方向外側の低流量枠状チャネル(34)と、を有しており、
第1の軸方向に整列した半径方向外側の横列(38a)を有する前記リブ構造(26)は、前記突出部(40)の遠位部分(44a)が、前記第1の軸方向に整列した半径方向外側の横列(38a)を有する前記リブ構造(26)と軸方向で重なり合うように、半径方向に延在しており、
前記突出部(40)は、第2の軸方向に整列した横列(38b)の前記リブ構造(26)と半径方向で整列しており、
前記第1の軸方向に整列した半径方向外側の横列(38a)は、前記先端部キャップ(24)の最も近くに配置されており、前記第2の軸方向に整列した半径方向外側の横列(38b)は、前記先端部キャップ(24)の2番目に近く配置されており、
前記軸方向に延びる通路(28,28’)は、前記先端部キャップ(24)の最も近くに配置された第1の軸方向に延びる通路要素(48a,48b)と、前記先端部キャップ(24)に2番目に近く配置された第2の軸方向に延びる通路要素(50)と、前記先端部キャップ(24)に3番目に近く配置された第3の軸方向に延びる通路要素(52)とを含み、
前記第1の軸方向に延びる通路要素(48a,48b)および前記第2の軸方向に延びる通路要素(50)のうちの少なくとも一方の半径方向高さH1,H2は、前記後縁冷却回路(14,16)内の、前記第3の軸方向に延びる通路要素(52)の半径方向高さHよりも大きく、
半径方向高さH1,H2およびHは、約3:2:1の互いに対する比を有し、H1は、Hの約3倍であり、H2は、Hの約2倍である、
ガスタービンエンジン内の翼(11)。 - 第3の軸方向に整列した半径方向外側の横列(38c)を有する前記リブ構造(26)は、前記第2の軸方向に整列した半径方向外側の横列(38b)を有するリブ構造(26)が、前記第3の軸方向に整列した半径方向外側の横列(38c)を有する前記リブ構造(26)と軸方向で重なり合うように、半径方向に延在しており、
前記第3の軸方向に整列した前記横列(38c)は、前記先端部キャップ(24)の3番目に近く配置されている、請求項7記載の翼(11)。 - 前記複数のリブ構造(26)および前記複数の突出部(40)は、前記冷却流体が複数の90度の転回を行うことを必要とする前記半径方向外側の低流量枠状チャネル(34)を通って前記軸方向に流路(CF)を画成している、請求項7記載の翼(11)。
- 前記後縁冷却回路(14,16)は、前記半径方向内側の端部(15)に隣接して配置され、前記半径方向内縁から半径方向外方へ延びる複数の突出部(40’)を有する、半径方向内側の低流量枠状チャネル(35)をさらに有し、
第1の軸方向に整列した半径方向内側の横列を有する前記リブ構造(26’)は、前記突出部(40)の遠位部分(44a’)が、前記第1の軸方向に整列した半径方向内側の横列を有する前記リブ構造(26’)と軸方向で重なり合うように、半径方向に延在しており、
第3の軸方向に整列した半径方向内側の横列を有する前記リブ構造(26’)は、第2の軸方向に整列した半径方向内側の横列を有する前記リブ構造(26’)が、前記第3の軸方向に整列した半径方向内側の横列を有する前記リブ構造(26’)と軸方向で重なり合うように、半径方向に延在しており、
前記第1の軸方向に整列した半径方向内側の横列は、前記半径方向内縁の最も近くに配置されており、前記第2の軸方向に整列した半径方向内側の横列は、前記半径方向内縁の2番目に近く配置されており、前記第3の軸方向に整列した半径方向内側の横列は、前記半径方向内縁の3番目に近く配置されており、
前記突出部(40’)は、前記第2の軸方向に整列した半径方向内側の横列を有する前記リブ構造(26’)と半径方向で整列している、請求項7記載の翼(11)。
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GB2574368A (en) * | 2018-04-09 | 2019-12-11 | Rolls Royce Plc | Coolant channel with interlaced ribs |
US11333023B2 (en) * | 2018-11-09 | 2022-05-17 | Raytheon Technologies Corporation | Article having cooling passage network with inter-row sub-passages |
GB201902997D0 (en) | 2019-03-06 | 2019-04-17 | Rolls Royce Plc | Coolant channel |
US20230417489A1 (en) * | 2021-01-21 | 2023-12-28 | Parker-Hannifin Corporation | Heat exchanger with progressive divided flow circuit, structural load bearing design |
CN116950724B (zh) * | 2023-09-20 | 2024-01-09 | 中国航发四川燃气涡轮研究院 | 一种应用于涡轮叶片尾缘的内部冷却结构及其设计方法 |
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-
2015
- 2015-04-03 WO PCT/US2015/024221 patent/WO2016160029A1/en active Application Filing
- 2015-04-03 JP JP2017552071A patent/JP6820272B2/ja active Active
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CN107429569B (zh) | 2019-09-24 |
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EP3277931B1 (en) | 2020-08-19 |
US20180058225A1 (en) | 2018-03-01 |
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CN107429569A (zh) | 2017-12-01 |
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