JP2008064087A - ダスト孔ドーム式ブレード - Google Patents
ダスト孔ドーム式ブレード Download PDFInfo
- Publication number
- JP2008064087A JP2008064087A JP2007195954A JP2007195954A JP2008064087A JP 2008064087 A JP2008064087 A JP 2008064087A JP 2007195954 A JP2007195954 A JP 2007195954A JP 2007195954 A JP2007195954 A JP 2007195954A JP 2008064087 A JP2008064087 A JP 2008064087A
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- Prior art keywords
- dust
- dome
- blade
- airfoil
- flow
- 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.)
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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
- F01D5/187—Convection cooling
- F01D5/188—Convection cooling with an insert in the blade cavity to guide the cooling fluid, e.g. forming a separation wall
-
- 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
-
- 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
- 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
- F05D2240/307—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 tip 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
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/18—Two-dimensional patterned
- F05D2250/185—Two-dimensional patterned serpentine-like
-
- 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
- F05D2260/202—Heat transfer, e.g. cooling by 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
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/221—Improvement of heat transfer
- F05D2260/2212—Improvement of heat transfer by creating turbulence
-
- 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
- F05D2260/60—Fluid transfer
- F05D2260/607—Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles
-
- 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)
Abstract
【解決手段】本中空タービン翼形部(12)は、対向する正圧及び負圧側壁(20、22)間における内部冷却回路(32)の境界となる先端キャップ(44)を含む。先端キャップ(44)は、ダスト孔(48)を囲む内部ドーム(50)を含み、ドーム(50)は、翼形部の対向する側壁(20、22)間で翼厚方向かつ対向する前縁及び後縁(28、30)間で翼弦方向の両方向に翼形部根元(24)に向かって内向きに傾斜する。
【選択図】 図1
Description
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 正圧側壁
22 負圧側壁
24 根元
26 先端
28 前縁
30 後縁
32 冷却回路
34 冷却空気
36 仕切り壁
38 フィルム冷却孔
40 インピンジメント孔
42 後縁スロット
44 先端キャップ
46 先端ウエル
48 ダスト孔
50 内部ドーム
52 流れ屈曲部
54 凸条部
56 外部ドーム
Claims (10)
- 根元(24)から先端(26)までスパンにわたって長手方向に延びかつ前縁及び後縁(28、30)間で翼弦にわたって翼弦方向に延びる対向する正圧及び負圧側壁(20、22)を備えた翼形部(12)を含み、
前記側壁(20、22)が、翼厚方向に間隔を置いて配置されて、対応する仕切り壁(36)によって翼弦方向に分離された複数の長手方向流路(1〜8)を有する内部冷却回路(32)を形成し、
前記翼形部(12)が、前記翼形部先端(26)から内向きに凹設されて露出先端ウエル(46)を形成し、かつ前記冷却回路(32)から前記ウエル(46)まで流れ連通して延びるダスト孔(48)を囲んだ内部ドーム(50)を有する先端キャップ(44)をさらに含み、
前記ドーム(50)が、前記側壁(20、22)間で翼厚方向かつ前記前縁及び後縁(28、30)間で翼弦方向の両方向に内向きに傾斜し、また前記流路の少なくとも1つと同一の広がりを有する、
タービンブレード(10)。 - 前記ドーム(50)が、前記側壁(20、22)におけるドーム(50)の周縁部から前記ダスト孔(48)を中に含む内側頂点まで該ドーム(50)の高さが増大する、請求項1記載のブレード。
- 前記ダスト孔(48)が、前記流路(2、7)の1つの上方で翼弦方向の中央に置かれる、請求項2記載のブレード。
- 前記ダスト孔(48)が、前記流路の1つ(3)の上方で翼厚方向の中央に置かれる、請求項2記載のブレード。
- 前記ダスト孔(48)が、前記流路(3〜6)の1つの上方で翼弦方向にオフセットされる、請求項2記載のブレード。
- 前記ダスト孔(48)が、前記流路(2、3、4、7)の1つの上方で翼厚方向にオフセットされる、請求項2記載のブレード。
- 前記冷却回路(32)が、アウトバウンド流路(4、5)を含み、
前記ダスト孔(48)が、前記負圧側壁(22)よりも前記正圧側壁(20)に近接するように翼厚方向にオフセットされる、
請求項2記載のブレード。 - 前記冷却回路(32)が、インバウンド流路(3、6)を含み、
前記ダスト孔(48)が、前記正圧側壁(20)よりも前記負圧側壁(22)に近接するように翼厚方向にオフセットされる、
請求項2記載のブレード。 - 前記冷却回路(32)が、それらの間の中断仕切り壁(36)により流れ屈曲部(52)が形成された蛇行形態で配置された複数のアウトバウンド及びインバウンド流路(2〜4)、(5〜7)を含み、
単一のドーム(50)が、前記流れ屈曲部(52)を橋絡し、
前記ダスト孔(48)が、前記流れ屈曲部(52)と流れ連通状態で配置される、
請求項2記載のブレード。 - 前記冷却回路(32)が、それらの間の中断仕切り壁(36)により流れ屈曲部(52)が形成された蛇行形態で配置された複数のアウトバウンド及びインバウンド流路(2〜4)、(5〜7)を含み、
前記先端キャップ(44)が、前記中断仕切り壁(36)の上方で垂下して前記アウトバウンド流路(4、5)の上方に配置された第1の内部ドーム(50)と前記インバウンド流路(3、6)の上方に配置された第2の内部ドーム(50)とを形成した凸条部(54)をさらに含み、
各ドームが、対応するダスト孔(48)を有する、
請求項2記載ブレード。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/494,378 | 2006-07-27 | ||
US11/494,378 US7695243B2 (en) | 2006-07-27 | 2006-07-27 | Dust hole dome blade |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008064087A true JP2008064087A (ja) | 2008-03-21 |
JP2008064087A5 JP2008064087A5 (ja) | 2010-09-02 |
JP4846668B2 JP4846668B2 (ja) | 2011-12-28 |
Family
ID=38515776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007195954A Expired - Fee Related JP4846668B2 (ja) | 2006-07-27 | 2007-07-27 | ダスト孔ドーム式ブレード |
Country Status (4)
Country | Link |
---|---|
US (1) | US7695243B2 (ja) |
EP (1) | EP1882817B1 (ja) |
JP (1) | JP4846668B2 (ja) |
CN (1) | CN101148994B (ja) |
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- 2007-07-27 CN CN2007101527252A patent/CN101148994B/zh active Active
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Cited By (6)
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JP2016511363A (ja) * | 2013-03-13 | 2016-04-14 | ゼネラル・エレクトリック・カンパニイ | 塵埃軽減を改善したタービンブレード |
JP2015081603A (ja) * | 2013-10-23 | 2015-04-27 | ゼネラル・エレクトリック・カンパニイ | 蛇状コアを有するタービンバケット |
JP2017203453A (ja) * | 2016-05-12 | 2017-11-16 | ゼネラル・エレクトリック・カンパニイ | 冷媒流路の折り返し開口部における応力低減球根状突起を有するブレード |
KR20170128128A (ko) * | 2016-05-12 | 2017-11-22 | 제네럴 일렉트릭 컴퍼니 | 냉매 통로의 턴 개구에 응력 저감용 구근식 돌출부를 갖춘 블레이드 |
KR102373727B1 (ko) | 2016-05-12 | 2022-03-15 | 제네럴 일렉트릭 컴퍼니 | 냉매 통로의 턴 개구에 응력 저감용 구근식 돌출부를 갖춘 블레이드 |
JP7118596B2 (ja) | 2016-05-12 | 2022-08-16 | ゼネラル・エレクトリック・カンパニイ | 冷媒流路の折り返し開口部における応力低減球根状突起を有するブレード |
Also Published As
Publication number | Publication date |
---|---|
CN101148994B (zh) | 2012-06-20 |
CN101148994A (zh) | 2008-03-26 |
EP1882817A2 (en) | 2008-01-30 |
JP4846668B2 (ja) | 2011-12-28 |
EP1882817A3 (en) | 2012-05-30 |
US20090155088A1 (en) | 2009-06-18 |
EP1882817B1 (en) | 2017-02-22 |
US7695243B2 (en) | 2010-04-13 |
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