JP5554542B2 - バケット先端損失を低減するためのシステム及び方法 - Google Patents
バケット先端損失を低減するためのシステム及び方法 Download PDFInfo
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- JP5554542B2 JP5554542B2 JP2009252544A JP2009252544A JP5554542B2 JP 5554542 B2 JP5554542 B2 JP 5554542B2 JP 2009252544 A JP2009252544 A JP 2009252544A JP 2009252544 A JP2009252544 A JP 2009252544A JP 5554542 B2 JP5554542 B2 JP 5554542B2
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- airfoil
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- 238000000034 method Methods 0.000 title description 11
- 238000013459 approach Methods 0.000 claims description 17
- 239000002131 composite material Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000000930 thermomechanical effect Effects 0.000 description 5
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F01D5/141—Shape, i.e. outer, aerodynamic form
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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
- F01D5/20—Specially-shaped blade tips to seal space between tips and stator
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
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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
- 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
- F05D2240/301—Cross-sectional characteristics
-
- 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
- F05D2240/55—Seals
-
- 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
- F05D2250/20—Three-dimensional
-
- 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
- F05D2250/70—Shape
-
- 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
- F05D2250/70—Shape
- F05D2250/71—Shape curved
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
102 正圧面
104 負圧面
106 根元表面
108 先端表面
110 前縁
112 後縁
200 翼形部
210 負圧面
300 傾斜プロフィール
302 後縁傾斜分布
304 前縁傾斜分布
400 細部
Claims (7)
- シュラウドなしタービンバケットの翼形部(100,200)を含むバケット先端損失を低減するためのシステムであって、
翼形部(100,200)が、各々根元表面(106)から先端表面(108)まで延在し前縁(110)及び後縁(112)でつながる正圧面(102)及び負圧面(104,210)を含んでおり、正圧面(102)が略凹面形を有し、負圧面(104,210)が略凸面形を有し、
翼形部(100,200)が、根元表面(106)から先端表面(108)までスパン方向に漸増するスタッガ角と、負圧面(104,210)が先端表面(108)に近づきかつ先端表面(108)が前縁(110)に近づくにつれて負荷の増す負圧面(104,210)とを有し、
翼形部(100,200)は、前縁(110)が先端表面(108)に近づくにつれて負圧面(104,210)の方向に合成傾斜を有し、
正圧面(102)及び負圧面(104,210)が各々、それらの先端表面(108)との交差位置において該正圧面(102)に向かう方向に反転した湾曲を有しているか或いは局所的に減少した湾曲を有している、システム。 - 前縁(110)の前縁傾斜分布(304)が、根元表面(106)から先端表面(108)まで、翼形部(100,200)の半径方向平面の負圧面側に位置している、請求項1記載のシステム。
- 翼形部(100,200)が、翼弦方向負荷スタックセクション分布を含む、請求項1又は請求項2記載のシステム。
- 根元表面(106)で翼形部(100,200)とつながる根元部をさらに含む、請求項1乃至請求項3のいずれか1項記載のシステム。
- 根元部が、タービンのローターに連結される、請求項4記載のシステム。
- 翼形部(100,200)が、負圧面(104,210)が先端表面(108)に近づきかつ先端表面(108)が後縁(112)に近づくにつれて負荷の増す負圧面(104,210)をさらに有し、また翼形部(100,200)が、後縁(112)が先端表面(108)に近づくにつれて負圧面(104,210)の方向に合成傾斜をさらに有する、請求項1乃至請求項5のいずれか1項記載のシステム。
- 正圧面(102)及び負圧面(104,210)が、それらの先端表面(108)との交差位置において該正圧面(102)に向かう方向にフレアを有する、請求項6記載のシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/265,995 | 2008-11-06 | ||
US12/265,995 US8480372B2 (en) | 2008-11-06 | 2008-11-06 | System and method for reducing bucket tip losses |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010112379A JP2010112379A (ja) | 2010-05-20 |
JP5554542B2 true JP5554542B2 (ja) | 2014-07-23 |
Family
ID=42096619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009252544A Active JP5554542B2 (ja) | 2008-11-06 | 2009-11-04 | バケット先端損失を低減するためのシステム及び方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8480372B2 (ja) |
JP (1) | JP5554542B2 (ja) |
CN (1) | CN101769169B (ja) |
DE (1) | DE102009044408B4 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2969230B1 (fr) * | 2010-12-15 | 2014-11-21 | Snecma | Aube de compresseur a loi d'empilage amelioree |
US8894376B2 (en) | 2011-10-28 | 2014-11-25 | General Electric Company | Turbomachine blade with tip flare |
WO2013084260A1 (ja) | 2011-12-07 | 2013-06-13 | 株式会社 日立製作所 | タービン動翼 |
US20140064951A1 (en) * | 2012-09-05 | 2014-03-06 | Renee J. Jurek | Root bow geometry for airfoil shaped vane |
CN104968893B (zh) * | 2012-10-23 | 2020-12-04 | 通用电气公司 | 无涵道的推力产生系统体系结构 |
US11300003B2 (en) | 2012-10-23 | 2022-04-12 | General Electric Company | Unducted thrust producing system |
US9908170B2 (en) * | 2014-02-03 | 2018-03-06 | Indian Institute Of Technology, Bombay | Blade for axial compressor rotor |
US11391298B2 (en) | 2015-10-07 | 2022-07-19 | General Electric Company | Engine having variable pitch outlet guide vanes |
US9995144B2 (en) | 2016-02-18 | 2018-06-12 | General Electric Company | Turbine blade centroid shifting method and system |
WO2020095470A1 (ja) * | 2018-11-05 | 2020-05-14 | 株式会社Ihi | 軸流流体機械の動翼 |
JP7260845B2 (ja) * | 2019-01-16 | 2023-04-19 | 株式会社Ihi | タービン動翼 |
DE102019210880A1 (de) * | 2019-07-23 | 2021-01-28 | MTU Aero Engines AG | Laufschaufel für eine strömungsmaschine |
US11629599B2 (en) | 2019-11-26 | 2023-04-18 | General Electric Company | Turbomachine nozzle with an airfoil having a curvilinear trailing edge |
US11566530B2 (en) | 2019-11-26 | 2023-01-31 | General Electric Company | Turbomachine nozzle with an airfoil having a circular trailing edge |
US11492918B1 (en) | 2021-09-03 | 2022-11-08 | General Electric Company | Gas turbine engine with third stream |
US11834995B2 (en) | 2022-03-29 | 2023-12-05 | General Electric Company | Air-to-air heat exchanger potential in gas turbine engines |
US11834954B2 (en) | 2022-04-11 | 2023-12-05 | General Electric Company | Gas turbine engine with third stream |
US11834992B2 (en) | 2022-04-27 | 2023-12-05 | General Electric Company | Heat exchanger capacity for one or more heat exchangers associated with an accessory gearbox of a turbofan engine |
US11680530B1 (en) | 2022-04-27 | 2023-06-20 | General Electric Company | Heat exchanger capacity for one or more heat exchangers associated with a power gearbox of a turbofan engine |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5847102A (ja) | 1981-09-11 | 1983-03-18 | Agency Of Ind Science & Technol | ガスタ−ビン冷却翼 |
FR2556409B1 (fr) | 1983-12-12 | 1991-07-12 | Gen Electric | Aube perfectionnee pour moteur a turbine a gaz et procede de fabrication |
US4682935A (en) * | 1983-12-12 | 1987-07-28 | General Electric Company | Bowed turbine blade |
US4585395A (en) * | 1983-12-12 | 1986-04-29 | General Electric Company | Gas turbine engine blade |
US5525038A (en) * | 1994-11-04 | 1996-06-11 | United Technologies Corporation | Rotor airfoils to control tip leakage flows |
FR2797658B1 (fr) * | 1999-08-18 | 2002-08-23 | Snecma | Aube de turbine a profil ameliore |
WO2001033054A2 (en) * | 1999-11-02 | 2001-05-10 | Prism Enterprises, Inc. | A modular cooling system |
US6331100B1 (en) * | 1999-12-06 | 2001-12-18 | General Electric Company | Doubled bowed compressor airfoil |
US6672829B1 (en) * | 2002-07-16 | 2004-01-06 | General Electric Company | Turbine blade having angled squealer tip |
JP4178545B2 (ja) * | 2002-10-02 | 2008-11-12 | 株式会社Ihi | 回転機械の動翼 |
US6899526B2 (en) * | 2003-08-05 | 2005-05-31 | General Electric Company | Counterstagger compressor airfoil |
GB2407136B (en) * | 2003-10-15 | 2007-10-03 | Alstom | Turbine rotor blade for gas turbine engine |
-
2008
- 2008-11-06 US US12/265,995 patent/US8480372B2/en active Active
-
2009
- 2009-11-03 DE DE102009044408.4A patent/DE102009044408B4/de active Active
- 2009-11-04 JP JP2009252544A patent/JP5554542B2/ja active Active
- 2009-11-06 CN CN200910222141.7A patent/CN101769169B/zh active Active
Also Published As
Publication number | Publication date |
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JP2010112379A (ja) | 2010-05-20 |
DE102009044408A1 (de) | 2010-05-12 |
CN101769169B (zh) | 2014-09-03 |
US20100111674A1 (en) | 2010-05-06 |
DE102009044408B4 (de) | 2023-07-06 |
US8480372B2 (en) | 2013-07-09 |
CN101769169A (zh) | 2010-07-07 |
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