JP6742753B2 - 侵入損失を制御するためのタービンバケットプラットフォーム - Google Patents
侵入損失を制御するためのタービンバケットプラットフォーム Download PDFInfo
- Publication number
- JP6742753B2 JP6742753B2 JP2016032576A JP2016032576A JP6742753B2 JP 6742753 B2 JP6742753 B2 JP 6742753B2 JP 2016032576 A JP2016032576 A JP 2016032576A JP 2016032576 A JP2016032576 A JP 2016032576A JP 6742753 B2 JP6742753 B2 JP 6742753B2
- Authority
- JP
- Japan
- Prior art keywords
- platform
- platform portion
- leading edge
- turbine
- edge
- 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.)
- Active
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 23
- 239000007789 gas Substances 0.000 description 26
- 241000879887 Cyrtopleura costata Species 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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
- F01D5/141—Shape, i.e. outer, aerodynamic form
-
- 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
- F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
- F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
-
- 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
- F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
-
- 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
- F01D5/145—Means for influencing boundary layers or secondary circulations
-
- 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
- F05D2220/31—Application in turbines in steam 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
- 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
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/24—Rotors for 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
- F05D2240/00—Components
- F05D2240/80—Platforms for stationary or moving blades
-
- 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
- F05D2260/97—Reducing windage losses
Description
20 第1段ノズル
22 第2段ノズル
26 ホイールスペース
28 高温ガス流路
30 ノズル面
32 阻止部材
40 バケット
42 プラットフォーム
44 プラットフォームリップ
50 翼形部
52 前縁
54 後縁
60 シャンク部
62 面
70,72,74 エンジェルウィングシール
140 バケット
142 プラットフォーム
145 上流側縁部
146 前縁
150 翼形部
152 前縁
192 凹部
194 下流側凹部
240 バケット
242 プラットフォーム
245 上流側縁部
246 前縁
247 下流側縁部
250 翼形部
252 前縁
253 前面
280 高温ガス
292 上流側凹部
294 下流側凹部
340 バケット
342 プラットフォーム
345 上流側縁部
346 前縁
347 下流側縁部
350 翼形部
353 前面
380 高温ガス
392 上流側凹部
394 下流側凹部
442 プラットフォーム
445 上流側縁部
446 前縁
447 下流側縁部
492 上流側凹部
494 下流側凹部
Claims (3)
- タービンバケット(140,240,340,440)であって、当該タービンバケットが、
プラットフォーム部分(142,242,342,442)と、
プラットフォーム部分から半径方向外向きに延在する翼形部(150,250,350)と
を備えており、
翼形部が、前縁(152,252)、負圧側面及び正圧側面を含んでおり、
プラットフォーム部分が、翼形部の前縁の側に位置するプラットフォーム部分の前縁(146,246,346,446)、翼形部の正圧側面の側に位置するプラットフォーム部分の上流側縁部(145,245,345,445)、及び翼形部の負圧側面の側に位置するプラットフォーム部分の下流側縁部(147,247,347,447)を含んでおり、
プラットフォーム部分の前縁において、1以上の凹部(192,194,292,294,392,394,492,494)がプラットフォーム部分内に半径方向内向きに延在しており、
1以上の凹部が、
プラットフォーム部分の前縁からプラットフォーム部分の上流側縁部まで延在し、プラットフォームの接平面においてプラットフォーム部分の前縁に対して45度〜80度の角度(α)が付けられている上流側凹部(192,292,392,492)と、
プラットフォーム部分の前縁からプラットフォーム部分の下流側縁部まで延在し、プラットフォームの接平面においてプラットフォーム部分の前縁に対して90度〜120度の角度(β)が付けられている下流側凹部(194,294,394,494)と
を含んでおり、
1以上の凹部が、プラットフォーム部分内に最大で100ミル(2.54mm)の深さまで半径方向内向きに延在している、タービンバケット。 - 作動状態において、1以上の凹部が、プラットフォーム部分を越えて通過する高温ガスのスワールを変化させるように適合される、請求項1に記載のタービンバケット。
- タービン(10)であって、
複数のタービンバケットであって、各々が請求項1又は請求項2に記載のタービンバケットである、複数のタービンバケット
を備える、タービン。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/635,352 | 2015-03-02 | ||
US14/635,352 US20160258295A1 (en) | 2015-03-02 | 2015-03-02 | Turbine bucket platform for controlling incursion losses |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016160935A JP2016160935A (ja) | 2016-09-05 |
JP6742753B2 true JP6742753B2 (ja) | 2020-08-19 |
Family
ID=55443181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016032576A Active JP6742753B2 (ja) | 2015-03-02 | 2016-02-24 | 侵入損失を制御するためのタービンバケットプラットフォーム |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160258295A1 (ja) |
EP (1) | EP3064709B1 (ja) |
JP (1) | JP6742753B2 (ja) |
KR (1) | KR102482623B1 (ja) |
CN (1) | CN105937409B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018128609A1 (en) * | 2017-01-05 | 2018-07-12 | Siemens Aktiengesellschaft | Seal assembly between a hot gas path and a rotor disc cavity |
CN109209510A (zh) * | 2018-10-12 | 2019-01-15 | 潘景贤 | 滑片连续容积式气轮动力机械 |
GB202004924D0 (en) * | 2020-02-13 | 2020-05-20 | Rolls Royce Plc | Aerofoil assembly and method |
GB202004925D0 (en) * | 2020-02-13 | 2020-05-20 | Rolls Royce Plc | Aerofoil assembly and method |
IT202000018631A1 (it) * | 2020-07-30 | 2022-01-30 | Ge Avio Srl | Pale di turbina comprendenti elementi di aero-freno e metodi per il loro uso. |
US20220082023A1 (en) * | 2020-09-15 | 2022-03-17 | General Electric Company | Turbine blade with non-axisymmetric forward feature |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4135857A (en) * | 1977-06-09 | 1979-01-23 | United Technologies Corporation | Reduced drag airfoil platforms |
DE59710924D1 (de) * | 1997-09-15 | 2003-12-04 | Alstom Switzerland Ltd | Kühlvorrichtung für Gasturbinenkomponenten |
JP4508482B2 (ja) * | 2001-07-11 | 2010-07-21 | 三菱重工業株式会社 | ガスタービン静翼 |
JP2004036510A (ja) | 2002-07-04 | 2004-02-05 | Mitsubishi Heavy Ind Ltd | ガスタービン動翼シュラウド |
JP2004100578A (ja) * | 2002-09-10 | 2004-04-02 | Mitsubishi Heavy Ind Ltd | 軸流タービンの翼部構造 |
US6786698B2 (en) * | 2002-12-19 | 2004-09-07 | General Electric Company | Steam turbine bucket flowpath |
US7195454B2 (en) * | 2004-12-02 | 2007-03-27 | General Electric Company | Bullnose step turbine nozzle |
US7244104B2 (en) * | 2005-05-31 | 2007-07-17 | Pratt & Whitney Canada Corp. | Deflectors for controlling entry of fluid leakage into the working fluid flowpath of a gas turbine engine |
GB0808206D0 (en) * | 2008-05-07 | 2008-06-11 | Rolls Royce Plc | A blade arrangement |
US8721291B2 (en) * | 2011-07-12 | 2014-05-13 | Siemens Energy, Inc. | Flow directing member for gas turbine engine |
US20130089430A1 (en) * | 2011-10-11 | 2013-04-11 | General Electric Company | Turbomachine component having a flow contour feature |
US9181816B2 (en) * | 2013-01-23 | 2015-11-10 | Siemens Aktiengesellschaft | Seal assembly including grooves in an aft facing side of a platform in a gas turbine engine |
EP2818641A1 (de) * | 2013-06-26 | 2014-12-31 | Siemens Aktiengesellschaft | Turbinenschaufel mit gestufter und abgeschrägter Plattformkante |
-
2015
- 2015-03-02 US US14/635,352 patent/US20160258295A1/en not_active Abandoned
-
2016
- 2016-02-17 KR KR1020160018374A patent/KR102482623B1/ko active IP Right Grant
- 2016-02-24 JP JP2016032576A patent/JP6742753B2/ja active Active
- 2016-02-29 EP EP16157828.1A patent/EP3064709B1/en active Active
- 2016-03-02 CN CN201610116856.4A patent/CN105937409B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
KR102482623B1 (ko) | 2022-12-28 |
KR20160106491A (ko) | 2016-09-12 |
CN105937409A (zh) | 2016-09-14 |
JP2016160935A (ja) | 2016-09-05 |
CN105937409B (zh) | 2020-11-06 |
EP3064709B1 (en) | 2020-06-17 |
US20160258295A1 (en) | 2016-09-08 |
EP3064709A1 (en) | 2016-09-07 |
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