JP4101657B2 - ガスタービンエンジンのブレード先端を冷却するための方法及び装置 - Google Patents
ガスタービンエンジンのブレード先端を冷却するための方法及び装置 Download PDFInfo
- Publication number
- JP4101657B2 JP4101657B2 JP2002569555A JP2002569555A JP4101657B2 JP 4101657 B2 JP4101657 B2 JP 4101657B2 JP 2002569555 A JP2002569555 A JP 2002569555A JP 2002569555 A JP2002569555 A JP 2002569555A JP 4101657 B2 JP4101657 B2 JP 4101657B2
- Authority
- JP
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- Prior art keywords
- cooling
- turbine
- cooling fluid
- cavity
- outer band
- 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
- F01D5/187—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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—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
- 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
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/201—Heat transfer, e.g. cooling by impingement of a fluid
-
- 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
- F05D2260/205—Cooling fluid recirculation, i.e. after cooling one or more components is the cooling fluid recovered and used elsewhere for other purposes
-
- 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
40 ロータ組立体
42 ステータ組立体
56 ロータブレード
80 先端シュラウド
86 ロータシール歯
88 ステータシュラウド
90 支持体
92 タービン羽根セグメント
94 羽根セグメント本体
112 空洞
114 空洞入口
116 空洞出口
120 隔壁
122 第1の冷却通路
124 第2の冷却通路
130 冷却開口
140 流量調整開口
150 外側バンド
160 熱シールド
170 熱シールドの第1開口
172 熱シールドの第2開口
180 シュラウド空洞
182 支持体空洞
Claims (9)
- 複数のタービンブレード(56)とタービンノズル組立体(42)とを備えるタービン(20)を含み、前記タービンノズル組立体が、円周方向のタービン羽根セグメント(92)の列と内側プラットフォーム(96)とを含み、各羽根セグメントが、前記内側プラットフォームから半径方向外向きに延び、かつ先端(100)と根元(102)とこれらの間で延びる本体(94)とを含み、前記羽根セグメント先端が、前記タービンノズル組立体をガスタービンエンジン内に結合する外側バンド(150)を含むガスタービンエンジン(10)を作動させるための方法であって、
前記本体(94)は中空であり、冷却流体を通すための空洞入口(114)と空洞出口(116)とを備える空洞(112)を形成する内部表面(110)を含み、
前記空洞出口(116)は、前記外側バンドの開口(158)と流れ連通しており、
前記空洞(112)内には、前記先端(100)から根元(102)に向けて半径方向に延び、前記空洞(112)を第1の冷却通路(122)と第2の冷却通路(124)とに分割する隔壁(120)が設けられており、
前記方法は、
前記タービンノズル組立体を通して前記複数のタービンブレードに向けて燃焼ガスを流す段階と、
前記タービン羽根セグメントの外側バンドに冷却流体を供給する段階と、
熱シールド(160)内の第1の組の開口(170)を通して前記タービン羽根セグメントの外側バンドの開口(158)に向けて冷却流体を軸方向に導く段階と、
タービン羽根セグメント本体の空洞(112)の前記空洞入口(114)に、前記熱シールド内に設けられた第2の組の開口(172)から半径方向内向きに冷却流体を導き、前記隔壁に設けられた冷却開口(130)を通過させて冷却流体を前記第2の冷却通路(124)に導き、該第2の冷却通路の冷却流体を前記空洞出口(116)から排出させて前記外側バンドの開口(158)に導く段階と、
前記外側バンド内の開口(158)を通して冷却流体を下流方向に排出する段階と、
を含むことを特徴とする方法。 - 前記冷却開口(130)を通過させて冷却流体を前記第2の冷却通路(124)に導く際、前記羽根セグメント本体の前縁(94)に隣接する内部表面(110)の部分に向けて該冷却流体を方向付けることを特徴とする請求項1に記載の方法。
- 前記タービン羽根セグメント内に圧縮機ブリード空気を導く段階を更に含むことを特徴とする、請求項1又は2に記載の方法。
- ガスタービンエンジン(10)用のタービンノズル組立体(42)であって、内側プラットフォーム(96)から半径方向外向きに延びるタービン羽根セグメント(92)の列を含み、
各前記タービン羽根セグメントが、先端(100)と根元(102)とこれらの間で延びる本体(94)とを含み、
前記先端が、前記タービン羽根セグメント本体の半径方向外側で延びる外側バンド(150)を含み、
前記外側バンドが、前記タービン羽根セグメントの外側バンド(150)と流れ連通している熱シールド(160)と、前記タービン羽根セグメント先端から冷却流体を下流方向に導くように構成された開口(158)とを含み、
前記本体(94)は中空であり、冷却流体を通すための空洞入口(114)と空洞出口(116)とを備える空洞(112)を形成する内部表面(110)を含み、
前記空洞(112)内には、前記先端(100)から根元(102)に向けて半径方向に延び、前記空洞(112)を第1の冷却通路(122)と第2の冷却通路(124)と に分割する隔壁(120)が設けられており、
前記隔壁には、第1の冷却通路(122)から第2の冷却通路(124)へ冷却流体が通過するのを可能にする冷却開口(130)が設けられており、
前記熱シールド(160)は、第1の組の開口(170)と第2の組の開口(172)とを備え、該第1の組の開口(170)は前記外側バンドの開口(158)に向けて冷却流体を軸方向に吐出し、前記第2の組の開口(172)は前記空洞の第1の冷却通路(122)内に冷却流体を半径方向内向きに吐出し、
前記空洞出口(116)は、前記外側バンドの開口(158)と流れ連通している
ことを特徴とするタービンノズル組立体(42)。 - 前記冷却開口(130)は、前記羽根セグメント本体の前縁(94)に隣接する内部表面(110)の部分に向けて前記冷却流体を方向付けることを特徴とする請求項4に記載のタービンノズル組立体(42)。
- 前記隔壁は、 U 字形であることを特徴とする請求項4又は5に記載のタービンノズル組立体(42)。
- 前記隔壁には、冷却流体が前記空洞の内部表面(110)に衝突することなく前記第1の冷却通路から前記第2の冷却通路へ吐出されるよう該隔壁の下部頂点(142)に配置された流量調整開口(140)が設けられていることを特徴とする請求項6に記載のタービンノズル組立体(42)。
- 前記タービン羽根セグメントの外側バンドの開口(158)を通して下流方向に導かれる前記冷却流体が、圧縮機ブリード空気であることを特徴とする、請求項4に記載のタービンノズル組立体(42)。
- 前記タービン羽根セグメントの外側バンド(150)の少なくとも一方の開口(158)が、前記タービン羽根セグメントの外側バンドから下流方向に吐出される冷却流体の量を制御するように構成された複数の開口を含むことを特徴とする、請求項4に記載のタービンノズル組立体(42)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/796,967 US6431820B1 (en) | 2001-02-28 | 2001-02-28 | Methods and apparatus for cooling gas turbine engine blade tips |
PCT/US2002/003912 WO2002070867A1 (en) | 2001-02-28 | 2002-01-30 | Methods and apparatus for cooling gas turbine engine blade tips |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004526893A JP2004526893A (ja) | 2004-09-02 |
JP2004526893A5 JP2004526893A5 (ja) | 2005-12-22 |
JP4101657B2 true JP4101657B2 (ja) | 2008-06-18 |
Family
ID=25169526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002569555A Expired - Fee Related JP4101657B2 (ja) | 2001-02-28 | 2002-01-30 | ガスタービンエンジンのブレード先端を冷却するための方法及び装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6431820B1 (ja) |
EP (1) | EP1366271B1 (ja) |
JP (1) | JP4101657B2 (ja) |
CN (1) | CN100363604C (ja) |
DE (1) | DE60214137T2 (ja) |
WO (1) | WO2002070867A1 (ja) |
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2001
- 2001-02-28 US US09/796,967 patent/US6431820B1/en not_active Expired - Lifetime
-
2002
- 2002-01-30 JP JP2002569555A patent/JP4101657B2/ja not_active Expired - Fee Related
- 2002-01-30 DE DE60214137T patent/DE60214137T2/de not_active Expired - Lifetime
- 2002-01-30 CN CNB028087410A patent/CN100363604C/zh not_active Expired - Fee Related
- 2002-01-30 WO PCT/US2002/003912 patent/WO2002070867A1/en active IP Right Grant
- 2002-01-30 EP EP02704412A patent/EP1366271B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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WO2002070867A1 (en) | 2002-09-12 |
EP1366271A1 (en) | 2003-12-03 |
DE60214137T2 (de) | 2007-03-08 |
EP1366271B1 (en) | 2006-08-23 |
JP2004526893A (ja) | 2004-09-02 |
CN1568397A (zh) | 2005-01-19 |
CN100363604C (zh) | 2008-01-23 |
US6431820B1 (en) | 2002-08-13 |
US20020122716A1 (en) | 2002-09-05 |
DE60214137D1 (de) | 2006-10-05 |
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