JP4688758B2 - パターン冷却式タービン翼形部 - Google Patents
パターン冷却式タービン翼形部 Download PDFInfo
- Publication number
- JP4688758B2 JP4688758B2 JP2006235092A JP2006235092A JP4688758B2 JP 4688758 B2 JP4688758 B2 JP 4688758B2 JP 2006235092 A JP2006235092 A JP 2006235092A JP 2006235092 A JP2006235092 A JP 2006235092A JP 4688758 B2 JP4688758 B2 JP 4688758B2
- Authority
- JP
- Japan
- Prior art keywords
- holes
- airfoil
- hole
- blade
- pattern
- 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
-
- 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
- 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
- F01D5/20—Specially-shaped blade tips to seal space between tips and stator
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
2 第2のチャネル
3 第3のチャネル
4 第4のチャネル
5 第5のチャネル
6 第6のチャネル
7 第7のチャネル
8 第8のチャネル
10 ロータブレード
12 翼形部
14 プラットフォーム
16 ダブテール
18 燃焼ガス
20 空気冷却媒体
22 正圧側壁
24 負圧側壁
26 内側根元
28 外側先端
30 前縁
32 後縁
34 冷却回路
36 隔壁
38 第1の冷却孔
40 第2の冷却孔
Claims (10)
- 単体構造の翼形部(12)、プラットフォーム(14)及び支持ダブテール(16)を含み、
前記翼形部(12)が、対向する正圧及び負圧側壁(22、24)間で中空であり、前記正圧側壁(22)が、前記翼形部のプラットフォーム(14)と翼長中間部との間で翼長方向に分布しかつ対向する前縁及び後縁(30、32)間で翼弦方向に分布したフィルム冷却型の第1の孔(38)の第1のパターンと、前記翼形部(12)の翼長中間部と遠位先端(28)との間で翼長及び翼弦方向に分布した異なる拡散型の第2の孔(40)の異なる第2のパターンとを含む、
タービンロータブレード(10)。 - 前記第1の孔(38)が、翼長方向に沿った複数の縦列を含み、
前記第2の孔(40)が、前記縦列とほぼ同一直線状になった複数の縦列を含む、
請求項1記載のブレード。 - 前記ブレードの内部冷却回路(34)が、根元(26)と前記先端(28)との間で翼長方向に延びかつ翼弦方向に間隔を置いて配置された複数のチャネル(1〜8)を含み、
前記翼形部(12)が、その厚さが初めに前記前縁(30)から後方に最大厚さまで増大し、次いで後方に薄い後縁(32)まで収束し、
前記第2の孔(40)の第2のパターンが、前記チャネルのうちの1つ(3)における前記最大厚さ付近で始まり、前記後縁(32)の前方において前記チャネルのうちの他の1つ(7)で終わる、
請求項2記載のブレード。 - 前記第1の孔(38)が、その大多数が前記正圧側壁(22)を傾斜して貫通し、かつ前記正圧側壁(22)の外表面上に長円形出口を有し、
前記第2の孔(40)が、前記正圧側壁(22)を傾斜して貫通し、かつ前記正圧側壁(22)の外表面上に発散出口を有する、
請求項3記載のブレード。 - 前記縦列内の第2の孔(40)が、その隣接する縦列間で翼長方向にその位置が互い違いである、請求項4記載のブレード。
- 前記第1の孔(38)が、前記第2のパターンの前方において前記前縁(30)に沿った複数の縦列と、前記第2のパターンの後方において前記後縁(32)に沿った複数の縦列と、前記第2のパターンの外側で前記先端(28)に沿って延びる横列とをさらに含む、請求項5記載のブレード。
- 前記第1の孔(38)が、主として翼長方向に沿って傾斜し、前記第2の孔(40)が、主として翼弦方向に沿って傾斜している、請求項5記載のブレード。
- 前記第1の孔(38)の第1のパターンが多方向性であり、前記第2の孔(40)の第2のパターンが一方向性である、請求項5記載のブレード。
- 前記内部冷却回路(34)が、
前記前縁(30)をインピンジメント冷却するように該前縁(30)の後側に配置された1対の前方チャネル(1、2)と、
複数通路蛇行構成として前記前方チャネル(1、2)の後側に配置され、前記第2の孔(40)がその中で始まる複数の中間チャネル(3〜7)と、
前記後縁(32)の前方において前記中間チャネル(3〜7)の後側に配置された後方チャネル(8)と、を含む、
請求項5記載のブレード。 - 前記第2の孔(40)の縦列の各々が、前記後縁(32)の前側においてその両方共が前記チャネルのうちの共通の1つ(7)と流れ連通状態で結合された最後の2つの縦列を除いて、前記チャネルのうちのそれぞれの1つ(3〜6)と流れ連通状態で配置され、
前記第2の孔(40)の最後から2番目の縦列が、前記第1の孔(38)の対応する縦列の上方で同一直線状であり、また前記第2の孔(40)の最後の縦列が、前記第1の孔(38)の次の2つの隣接する縦列間で翼弦方向にオフセットしている、
請求項9記載のブレード。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/216,647 US7249934B2 (en) | 2005-08-31 | 2005-08-31 | Pattern cooled turbine airfoil |
US11/216,647 | 2005-08-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007064226A JP2007064226A (ja) | 2007-03-15 |
JP4688758B2 true JP4688758B2 (ja) | 2011-05-25 |
Family
ID=37067633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006235092A Expired - Fee Related JP4688758B2 (ja) | 2005-08-31 | 2006-08-31 | パターン冷却式タービン翼形部 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7249934B2 (ja) |
EP (1) | EP1760267B1 (ja) |
JP (1) | JP4688758B2 (ja) |
CN (1) | CN1970997B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11346231B2 (en) | 2018-03-27 | 2022-05-31 | Mitsubishi Power, Ltd. | Turbine rotor blade and gas turbine |
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GB0709838D0 (en) * | 2007-05-23 | 2007-07-04 | Rolls Royce Plc | A hollow blade and a method of manufacturing a hollow blade |
US8281604B2 (en) * | 2007-12-17 | 2012-10-09 | General Electric Company | Divergent turbine nozzle |
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US8167560B2 (en) * | 2009-03-03 | 2012-05-01 | Siemens Energy, Inc. | Turbine airfoil with an internal cooling system having enhanced vortex forming turbulators |
US8192146B2 (en) * | 2009-03-04 | 2012-06-05 | Siemens Energy, Inc. | Turbine blade dual channel cooling system |
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US8231330B1 (en) * | 2009-05-15 | 2012-07-31 | Florida Turbine Technologies, Inc. | Turbine blade with film cooling slots |
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- 2006-08-31 JP JP2006235092A patent/JP4688758B2/ja not_active Expired - Fee Related
- 2006-08-31 CN CN2006101495420A patent/CN1970997B/zh active Active
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11346231B2 (en) | 2018-03-27 | 2022-05-31 | Mitsubishi Power, Ltd. | Turbine rotor blade and gas turbine |
Also Published As
Publication number | Publication date |
---|---|
US20070048133A1 (en) | 2007-03-01 |
EP1760267B1 (en) | 2013-10-23 |
EP1760267A2 (en) | 2007-03-07 |
US7249934B2 (en) | 2007-07-31 |
EP1760267A3 (en) | 2009-06-10 |
CN1970997A (zh) | 2007-05-30 |
CN1970997B (zh) | 2012-04-25 |
JP2007064226A (ja) | 2007-03-15 |
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