JP4785507B2 - ブルノーズ段部付きタービンノズル - Google Patents
ブルノーズ段部付きタービンノズル Download PDFInfo
- Publication number
- JP4785507B2 JP4785507B2 JP2005337988A JP2005337988A JP4785507B2 JP 4785507 B2 JP4785507 B2 JP 4785507B2 JP 2005337988 A JP2005337988 A JP 2005337988A JP 2005337988 A JP2005337988 A JP 2005337988A JP 4785507 B2 JP4785507 B2 JP 4785507B2
- Authority
- JP
- Japan
- Prior art keywords
- bull nose
- nozzle
- flow path
- bull
- 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.)
- 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
- F01D5/141—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
- F01D11/005—Sealing means between non relatively rotating elements
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
-
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using 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
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/19—Two-dimensional machined; miscellaneous
-
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
12 ステータベーン
14 半径方向内側バンド
16 半径方向外側バンド
18 正圧側面
20 負圧側面
22 前縁
24 後縁
26 燃焼ガス
28 流路面
30 前方端縁
32 後方端縁
34 第1の端面
36 第2の端面
38 ろう付け接合部
42 前方ブルノーズ
44 後方ブルノーズ
Claims (9)
- 内側及び外側バンド(14、16)に接合された複数のベーン(12)を含み、前記バンドの対応する第1及び第2の端面(34、36)が、スプラインシール(40)によって互いに接合されており、
前記バンド(14、16)が、前記ベーン(12)の両端部を囲んで該ベーン間に燃焼ガス(26)の流れを閉じ込める流路面(28)を含み、前記流路面が、軸方向に前方及び後方端縁(30、32)でかつ円周方向に第1及び第2の端面(34、36)で終端し、
前記内側及び外側バンド(14、16)における流路面(28)の各々が、前記前方端縁(30)において前方ブルノーズ(42)の形態で前記第1の端面(34)を接合しかつ前記後方端縁(32)において後方ブルノーズ(44)の形態で前記第2の端面(36)を接合し、前記ブルノーズが、その大きさが前記両端縁から連続的に変化し、
前記外側バンドの流路面(28)が、前記後方端縁(32)において尖ったエンゼルウイングの形態で終端し、前記後方ブルノーズ(44)が、前記エンゼルウイングの手前で開始しかつその大きさが増大した後にその大きさが該後方ブルノーズの終端部に向かって減少していることを特徴とするタービンノズル(10)。 - 前記ブルノーズ(42、44)が、その深さが前記流路面(28)の下方に延びていることを特徴とする請求項1記載のノズル。
- 前記前方ブルノーズ(42)が、その大きさが前記前方端縁(30)から後方端縁(32)に向かって次第に小さくなるように減少し、また前記後方ブルノーズ(44)が、その大きさが前記後方端縁(32)から前方端縁(30)に向かって次第に小さくなるように減少していることを特徴とする請求項2記載のノズル。
- 前記前方ブルノーズ(42)が、前記前方端縁(30)で開始しかつ前記第1の端面(34)の中央よりも前で終端し、また前記後方ブルノーズ(44)が、前記後方端縁(32)で開始しかつ前記第2の端面(36)の中央よりも前で終端していることを特徴とする請求項3記載のノズル。
- 前記内側及び外側バンド(14、16)における第1及び第2の端面(34、36)が各々、前記ブルノーズ(42、44)がない主セクション(46)を含み、前記主セクションが、その長さが前記ブルノーズの各々よりも大きいことを特徴とする請求項4記載のノズル。
- 前記流路面(28)が、前記前方端縁(30)で終端し、前方ブルノーズ(42)が、前記前方端縁(30)で開始し、最大半径を有しかつその半径が該前方ブルノーズの終端部に向かって連続的に減少していることを特徴とする請求項5記載のノズル。
- 前記内側バンドの流路面(28)が、前記前方端縁(30)で終端し、前記前方ブルノーズ(42)が、最大半径を有する状態で前記前方端縁(30)で開始しかつその半径が該前方ブルノーズの終端部に向かって連続的に減少していることを特徴とする請求項1記載のノズル。
- 前記前方及び後方ブルノーズ(42、44)が、前記流路面(28)と前記端面(34、36)とを橋絡する円弧を含み、前記円弧が、その半径が前記端面の中央部に向かって減少しかつほぼゼロ半径として終端していることを特徴とする請求項5記載のノズル。
- 前記ベーン(12)が、対の形態で配置され、その前記内側及び外側バンド(14、16)が、前記第1及び第2の端面(34、36)の対応する端面において互いにろう付けされ、それら端面の前記前方及び後方ブルノーズ(42、44)が、隣接する流路面(28)間に局所ノッチを形成していることを特徴とする請求項5記載のノズル。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/002,570 | 2004-12-02 | ||
US11/002,570 US7195454B2 (en) | 2004-12-02 | 2004-12-02 | Bullnose step turbine nozzle |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006161810A JP2006161810A (ja) | 2006-06-22 |
JP4785507B2 true JP4785507B2 (ja) | 2011-10-05 |
Family
ID=35852170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005337988A Expired - Fee Related JP4785507B2 (ja) | 2004-12-02 | 2005-11-24 | ブルノーズ段部付きタービンノズル |
Country Status (5)
Country | Link |
---|---|
US (1) | US7195454B2 (ja) |
EP (1) | EP1674659B1 (ja) |
JP (1) | JP4785507B2 (ja) |
CA (1) | CA2527645C (ja) |
DE (1) | DE602005007457D1 (ja) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7632071B2 (en) * | 2005-12-15 | 2009-12-15 | United Technologies Corporation | Cooled turbine blade |
US20080145208A1 (en) * | 2006-12-19 | 2008-06-19 | General Electric Company | Bullnose seal turbine stage |
US7836703B2 (en) * | 2007-06-20 | 2010-11-23 | General Electric Company | Reciprocal cooled turbine nozzle |
ATE497087T1 (de) | 2007-08-06 | 2011-02-15 | Alstom Technology Ltd | Spaltkühlung zwischen brennkammerwand und turbinenwand einer gasturbinenanlage |
US8202043B2 (en) * | 2007-10-15 | 2012-06-19 | United Technologies Corp. | Gas turbine engines and related systems involving variable vanes |
FR2926322B1 (fr) * | 2008-01-10 | 2012-08-03 | Snecma | Aube bi-pale avec lames. |
US20090274562A1 (en) * | 2008-05-02 | 2009-11-05 | United Technologies Corporation | Coated turbine-stage nozzle segments |
US20090293495A1 (en) * | 2008-05-29 | 2009-12-03 | General Electric Company | Turbine airfoil with metered cooling cavity |
US9039375B2 (en) * | 2009-09-01 | 2015-05-26 | General Electric Company | Non-axisymmetric airfoil platform shaping |
JP5426305B2 (ja) * | 2009-09-30 | 2014-02-26 | 株式会社東芝 | ターボ機械 |
FR2960604B1 (fr) * | 2010-05-26 | 2013-09-20 | Snecma | Ensemble a aubes de compresseur de turbomachine |
US8992179B2 (en) | 2011-10-28 | 2015-03-31 | General Electric Company | Turbine of a turbomachine |
US9255480B2 (en) * | 2011-10-28 | 2016-02-09 | General Electric Company | Turbine of a turbomachine |
US9051843B2 (en) | 2011-10-28 | 2015-06-09 | General Electric Company | Turbomachine blade including a squeeler pocket |
ES2552650T3 (es) * | 2012-04-13 | 2015-12-01 | Mtu Aero Engines Gmbh | Álabe para una turbomáquina, disposición de álabes y turbomáquina |
US20130315745A1 (en) * | 2012-05-22 | 2013-11-28 | United Technologies Corporation | Airfoil mateface sealing |
US9267386B2 (en) | 2012-06-29 | 2016-02-23 | United Technologies Corporation | Fairing assembly |
SG11201407843UA (en) | 2012-08-17 | 2015-03-30 | United Technologies Corp | Contoured flowpath surface |
WO2014130214A1 (en) * | 2013-02-22 | 2014-08-28 | United Technologies Corporation | Stator vane assembly and method therefore |
EP2818641A1 (de) | 2013-06-26 | 2014-12-31 | Siemens Aktiengesellschaft | Turbinenschaufel mit gestufter und abgeschrägter Plattformkante |
EP3090143B8 (en) * | 2013-12-09 | 2021-04-21 | Raytheon Technologies Corporation | Array of components in a gas turbine engine |
EP2918784A1 (de) * | 2014-03-13 | 2015-09-16 | Siemens Aktiengesellschaft | Schaufelfuß für eine Turbinenschaufel |
GB201406822D0 (en) * | 2014-04-16 | 2014-05-28 | Rolls Royce Plc | Method of designing guide vane formations |
US20160258295A1 (en) * | 2015-03-02 | 2016-09-08 | General Electric Company | Turbine bucket platform for controlling incursion losses |
US10577955B2 (en) | 2017-06-29 | 2020-03-03 | General Electric Company | Airfoil assembly with a scalloped flow surface |
EP3740656B1 (en) * | 2018-02-15 | 2022-01-26 | Siemens Energy Global GmbH & Co. KG | Article of manufacture |
FR3081185B1 (fr) * | 2018-05-17 | 2020-09-11 | Safran Aircraft Engines | Element de stator de turbomachine |
US11156098B2 (en) * | 2019-02-07 | 2021-10-26 | Raytheon Technologies Corporation | Mate face arrangement for gas turbine engine components |
JP7325213B2 (ja) * | 2019-04-10 | 2023-08-14 | 三菱重工業株式会社 | 静翼ユニットおよび圧縮機並びにガスタービン |
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. |
JP7284737B2 (ja) * | 2020-08-06 | 2023-05-31 | 三菱重工業株式会社 | ガスタービン静翼 |
US11415010B1 (en) * | 2021-07-05 | 2022-08-16 | Doosan Enerbility Co., Ltd. | Turbine nozzle and gas turbine including the same |
US11608754B2 (en) | 2021-07-14 | 2023-03-21 | Doosan Enerbility Co., Ltd. | Turbine nozzle assembly and gas turbine including the same |
CN114992631B (zh) * | 2022-05-25 | 2023-04-11 | 河南凯盛石油设备有限公司 | 一种双通道分解炉燃烧器 |
Family Cites Families (11)
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US4135857A (en) | 1977-06-09 | 1979-01-23 | United Technologies Corporation | Reduced drag airfoil platforms |
JPS58162702A (ja) | 1982-03-23 | 1983-09-27 | Mitsubishi Heavy Ind Ltd | 軸流タ−ボ機械 |
US5020970A (en) | 1989-07-13 | 1991-06-04 | Dresser-Rand Company | Fluid-handling, bladed rotor |
US5823741A (en) * | 1996-09-25 | 1998-10-20 | General Electric Co. | Cooling joint connection for abutting segments in a gas turbine engine |
EP0902167B1 (de) | 1997-09-15 | 2003-10-29 | ALSTOM (Switzerland) Ltd | Kühlvorrichtung für Gasturbinenkomponenten |
US6158961A (en) * | 1998-10-13 | 2000-12-12 | General Electric Compnay | Truncated chamfer turbine blade |
JP2002213207A (ja) * | 2001-01-15 | 2002-07-31 | Mitsubishi Heavy Ind Ltd | ガスタービン分割環 |
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 |
US6579061B1 (en) * | 2001-07-27 | 2003-06-17 | General Electric Company | Selective step turbine nozzle |
US6672832B2 (en) | 2002-01-07 | 2004-01-06 | General Electric Company | Step-down turbine platform |
US6769865B2 (en) * | 2002-03-22 | 2004-08-03 | General Electric Company | Band cooled turbine nozzle |
-
2004
- 2004-12-02 US US11/002,570 patent/US7195454B2/en not_active Expired - Fee Related
-
2005
- 2005-11-24 JP JP2005337988A patent/JP4785507B2/ja not_active Expired - Fee Related
- 2005-11-24 CA CA2527645A patent/CA2527645C/en not_active Expired - Fee Related
- 2005-11-28 DE DE602005007457T patent/DE602005007457D1/de active Active
- 2005-11-28 EP EP05257286A patent/EP1674659B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE602005007457D1 (de) | 2008-07-24 |
EP1674659A2 (en) | 2006-06-28 |
EP1674659A3 (en) | 2007-03-21 |
US20060120864A1 (en) | 2006-06-08 |
EP1674659B1 (en) | 2008-06-11 |
JP2006161810A (ja) | 2006-06-22 |
CA2527645A1 (en) | 2006-06-02 |
US7195454B2 (en) | 2007-03-27 |
CA2527645C (en) | 2014-09-23 |
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