JP4815223B2 - タービン翼形部の高効率ファン冷却孔 - Google Patents
タービン翼形部の高効率ファン冷却孔 Download PDFInfo
- Publication number
- JP4815223B2 JP4815223B2 JP2006015198A JP2006015198A JP4815223B2 JP 4815223 B2 JP4815223 B2 JP 4815223B2 JP 2006015198 A JP2006015198 A JP 2006015198A JP 2006015198 A JP2006015198 A JP 2006015198A JP 4815223 B2 JP4815223 B2 JP 4815223B2
- Authority
- JP
- Japan
- Prior art keywords
- airfoil
- cooling
- leading edge
- turbine airfoil
- cooling holes
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/10—Working turbine blades or nozzles
-
- 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
-
- 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
- F05D2250/12—Two-dimensional rectangular
-
- 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
- F05D2260/202—Heat transfer, e.g. cooling by film cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
32 翼形部
34 ダブテール
36 前縁
38 後縁
40 根元
42 先端
44 正圧側壁
46 負圧側壁
50 冷却回路
60 冷却孔
61 ディフューザセクション
62 出口開口部
64 調量セクション
70 EDMツール
Claims (7)
- 湾曲面を形成した外面を有するタービン翼形部(32)であって、
(a)軸方向に延び、凸状の空気力学的外面湾曲面を有する前縁(36)及び軸方向に間隔を置いて配置された後縁(38)と、
(b)半径方向に延びるスパン軸線に沿って間隔を置いて配置された根元(40)及び先端(42)と、
(c)正圧側壁(44)及び横方向に間隔を置いて配置された負圧側壁(46)と、
(d)前記正圧側壁(44)及び負圧側壁(46)間に配置されて前記翼形部(32)を冷却するための流体流を流すようになった冷却回路(50)と、
(e)前記翼形部(32)の前縁(36)の前記凸状に湾曲した外面に形成されかつ前記冷却回路(50)と流体連通した状態で配置され、その各々が、前記外面と連通したディフューザセクション(61)を有し、前記ディフューザセクション(61)が、前記外面上にほぼ直線矩形の出口開口部(62)を形成する対向する壁(65)を有する、複数の冷却孔(60)と、を含み、
前記ディフューザセクション(61)が、前記翼形部(36)の半径方向軸線に対して上向きに約15度傾斜して冷却空気流を前記翼形部(36)の先端(42)に向かって半径方向上向きに吐出するようになっており、
(f)前記ディフューザ壁(65)の上部が、前記冷却孔(60)に対して局所的な前記翼形部(32)の外面湾曲にほぼ一致する凸面形湾曲を有し、該凸面形湾曲が、該凸面形湾曲と相補形の上部凸状湾曲面(74)を有する放電加工ツール(12)により形成され、それによって前記冷却孔出口開口部(62)からの流体流が、前記冷却孔(60)に隣接する前記翼形部(62)の外面のランド部に沿って一様に分散されかつ散布されることを特徴とするタービン翼形部(32)。 - 前記冷却孔(60)が各々、前記翼形部(32)の冷却回路(50)及び前記ディフューザセクション(61)と流体連通した状態で配置されたそれぞれの円筒形調量セクション(64)を含むことを特徴とする請求項1記載のタービン翼形部(32)。
- 前記ディフューザセクションの直線矩形開口部(62)が、半径方向に延びる垂直高さ寸法と横方向に延びる幅寸法とを定め、また前記出口開口部が、約1.14mmで半径方向に間隔を置いて配置されていることを特徴とする請求項1記載のタービン翼形部(32)。
- 前記ディフューザセクション(61)の直線矩形出口開口部(62)が、半径方向に延びる垂直高さ寸法と横方向に延びる幅寸法とを定め、また前記出口開口部(62)が、約1.14mmで半径方向に間隔を置いて配置されかつ約1.14mmで横方向に間隔を置いて配置されていることを特徴とする請求項1記載のタービン翼形部。
- 前記翼形部(32)の前縁(36)が、ほぼ半径方向に延びる3列の冷却孔(60)を含むことを特徴とする請求項1記載のタービン翼形部(32)。
- 中央列の冷却孔(60)が、該中央列の冷却孔(60)の両側に配置された第1及び第2の列の冷却孔(60)に対して垂直方向に千鳥配置されていることを特徴とする請求項4記載のタービン翼形部(32)。
- 前記冷却孔(60)による前記前縁(36)の表面積被度が、約35%であることを特徴とする請求項1記載のタービン翼形部(32)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/046,112 US7246992B2 (en) | 2005-01-28 | 2005-01-28 | High efficiency fan cooling holes for turbine airfoil |
US11/046,112 | 2005-01-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006207586A JP2006207586A (ja) | 2006-08-10 |
JP4815223B2 true JP4815223B2 (ja) | 2011-11-16 |
Family
ID=36216906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006015198A Expired - Fee Related JP4815223B2 (ja) | 2005-01-28 | 2006-01-24 | タービン翼形部の高効率ファン冷却孔 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7246992B2 (ja) |
EP (1) | EP1691033B1 (ja) |
JP (1) | JP4815223B2 (ja) |
CN (1) | CN1818349B (ja) |
CA (1) | CA2534061C (ja) |
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US8061979B1 (en) * | 2007-10-19 | 2011-11-22 | Florida Turbine Technologies, Inc. | Turbine BOAS with edge cooling |
US8066484B1 (en) | 2007-11-19 | 2011-11-29 | Florida Turbine Technologies, Inc. | Film cooling hole for a turbine airfoil |
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-
2005
- 2005-01-28 US US11/046,112 patent/US7246992B2/en active Active
-
2006
- 2006-01-24 JP JP2006015198A patent/JP4815223B2/ja not_active Expired - Fee Related
- 2006-01-25 EP EP06250410.5A patent/EP1691033B1/en not_active Expired - Fee Related
- 2006-01-26 CA CA2534061A patent/CA2534061C/en not_active Expired - Fee Related
- 2006-01-28 CN CN200610008976.9A patent/CN1818349B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1691033B1 (en) | 2013-11-20 |
CA2534061C (en) | 2014-04-29 |
JP2006207586A (ja) | 2006-08-10 |
CN1818349B (zh) | 2012-06-13 |
CA2534061A1 (en) | 2006-07-28 |
EP1691033A1 (en) | 2006-08-16 |
US7246992B2 (en) | 2007-07-24 |
CN1818349A (zh) | 2006-08-16 |
US20060171807A1 (en) | 2006-08-03 |
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