CN1987054A - 涡轮机叶片末端冷却 - Google Patents
涡轮机叶片末端冷却 Download PDFInfo
- Publication number
- CN1987054A CN1987054A CNA2006101686678A CN200610168667A CN1987054A CN 1987054 A CN1987054 A CN 1987054A CN A2006101686678 A CNA2006101686678 A CN A2006101686678A CN 200610168667 A CN200610168667 A CN 200610168667A CN 1987054 A CN1987054 A CN 1987054A
- Authority
- CN
- China
- Prior art keywords
- spanwise
- stem portion
- chamber
- flow
- blade
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims description 18
- 238000012546 transfer Methods 0.000 claims description 14
- 238000005266 casting Methods 0.000 claims description 10
- 230000035939 shock Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 2
- 239000000178 monomer Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 20
- 210000003414 extremity Anatomy 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003870 refractory metal Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 244000050510 Cunninghamia lanceolata Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/187—Convection cooling
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/103—Multipart cores
-
- 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
-
- 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/08—Heating, heat-insulating or cooling means
-
- 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
- F01D5/186—Film 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
- 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
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/21—Manufacture essentially without removing material by casting
-
- 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
- F05D2230/00—Manufacture
- F05D2230/80—Repairing, retrofitting or upgrading methods
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/317,394 US7413403B2 (en) | 2005-12-22 | 2005-12-22 | Turbine blade tip cooling |
| US11/317394 | 2005-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1987054A true CN1987054A (zh) | 2007-06-27 |
Family
ID=37888097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101686678A Pending CN1987054A (zh) | 2005-12-22 | 2006-12-22 | 涡轮机叶片末端冷却 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7413403B2 (enExample) |
| EP (1) | EP1801351B1 (enExample) |
| JP (1) | JP2007170379A (enExample) |
| KR (1) | KR20070066843A (enExample) |
| CN (1) | CN1987054A (enExample) |
| SG (1) | SG133467A1 (enExample) |
| TW (1) | TW200724775A (enExample) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458715A (zh) * | 2009-04-20 | 2012-05-16 | 西门子公司 | 用于制造燃气轮机的涡轮动叶片的浇铸装置和涡轮动叶片 |
| CN103485839A (zh) * | 2012-06-08 | 2014-01-01 | 通用电气公司 | 涡轮发动机的气动组件 |
| CN106660125A (zh) * | 2014-05-30 | 2017-05-10 | 诺沃皮尼奥内股份有限公司 | 制造涡轮机构件的方法、涡轮机构件和涡轮机 |
| CN111335960A (zh) * | 2018-12-18 | 2020-06-26 | 通用电气公司 | 涡轮发动机翼型件及冷却方法 |
| CN111677557A (zh) * | 2020-06-08 | 2020-09-18 | 清华大学 | 涡轮导向叶片及具有其的涡轮机械 |
Families Citing this family (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7674093B2 (en) * | 2006-12-19 | 2010-03-09 | General Electric Company | Cluster bridged casting core |
| US7866370B2 (en) * | 2007-01-30 | 2011-01-11 | United Technologies Corporation | Blades, casting cores, and methods |
| US8177507B2 (en) * | 2008-05-14 | 2012-05-15 | United Technologies Corporation | Triangular serpentine cooling channels |
| US8172533B2 (en) * | 2008-05-14 | 2012-05-08 | United Technologies Corporation | Turbine blade internal cooling configuration |
| US8157527B2 (en) | 2008-07-03 | 2012-04-17 | United Technologies Corporation | Airfoil with tapered radial cooling passage |
| US8572844B2 (en) | 2008-08-29 | 2013-11-05 | United Technologies Corporation | Airfoil with leading edge cooling passage |
| US8303252B2 (en) | 2008-10-16 | 2012-11-06 | United Technologies Corporation | Airfoil with cooling passage providing variable heat transfer rate |
| US8100165B2 (en) * | 2008-11-17 | 2012-01-24 | United Technologies Corporation | Investment casting cores and methods |
| US8171978B2 (en) | 2008-11-21 | 2012-05-08 | United Technologies Corporation | Castings, casting cores, and methods |
| US8113780B2 (en) * | 2008-11-21 | 2012-02-14 | United Technologies Corporation | Castings, casting cores, and methods |
| US8109725B2 (en) | 2008-12-15 | 2012-02-07 | United Technologies Corporation | Airfoil with wrapped leading edge cooling passage |
| GB2468669C (en) * | 2009-03-17 | 2013-11-13 | Rolls Royce Plc | A flow discharge device |
| US20100239409A1 (en) * | 2009-03-18 | 2010-09-23 | General Electric Company | Method of Using and Reconstructing a Film-Cooling Augmentation Device for a Turbine Airfoil |
| US8052378B2 (en) * | 2009-03-18 | 2011-11-08 | General Electric Company | Film-cooling augmentation device and turbine airfoil incorporating the same |
| US8118553B2 (en) * | 2009-03-20 | 2012-02-21 | Siemens Energy, Inc. | Turbine airfoil cooling system with dual serpentine cooling chambers |
| US8764379B2 (en) * | 2010-02-25 | 2014-07-01 | General Electric Company | Turbine blade with shielded tip coolant supply passageway |
| US9212560B2 (en) † | 2011-06-30 | 2015-12-15 | United Technologies Corporation | CMC blade with integral 3D woven platform |
| US8876484B2 (en) | 2011-08-05 | 2014-11-04 | Hamilton Sundstrand Corporation | Turbine blade pocket pin stress relief |
| US9200523B2 (en) | 2012-03-14 | 2015-12-01 | Honeywell International Inc. | Turbine blade tip cooling |
| US9429027B2 (en) | 2012-04-05 | 2016-08-30 | United Technologies Corporation | Turbine airfoil tip shelf and squealer pocket cooling |
| US9279331B2 (en) * | 2012-04-23 | 2016-03-08 | United Technologies Corporation | Gas turbine engine airfoil with dirt purge feature and core for making same |
| US10408066B2 (en) | 2012-08-15 | 2019-09-10 | United Technologies Corporation | Suction side turbine blade tip cooling |
| US9115590B2 (en) | 2012-09-26 | 2015-08-25 | United Technologies Corporation | Gas turbine engine airfoil cooling circuit |
| US9995148B2 (en) | 2012-10-04 | 2018-06-12 | General Electric Company | Method and apparatus for cooling gas turbine and rotor blades |
| US8920123B2 (en) | 2012-12-14 | 2014-12-30 | Siemens Aktiengesellschaft | Turbine blade with integrated serpentine and axial tip cooling circuits |
| US9932837B2 (en) * | 2013-03-11 | 2018-04-03 | United Technologies Corporation | Low pressure loss cooled blade |
| US20160222794A1 (en) * | 2013-09-09 | 2016-08-04 | United Technologies Corporation | Incidence tolerant engine component |
| US10041374B2 (en) * | 2014-04-04 | 2018-08-07 | United Technologies Corporation | Gas turbine engine component with platform cooling circuit |
| FR3021697B1 (fr) * | 2014-05-28 | 2021-09-17 | Snecma | Aube de turbine a refroidissement optimise |
| US9714583B2 (en) * | 2014-08-21 | 2017-07-25 | Honeywell International Inc. | Fan containment cases for fan casings in gas turbine engines, fan blade containment systems, and methods for producing the same |
| US9835087B2 (en) | 2014-09-03 | 2017-12-05 | General Electric Company | Turbine bucket |
| EP3271553A1 (en) | 2015-03-17 | 2018-01-24 | Siemens Energy, Inc. | Turbine blade with a non-constraint flow turning guide structure |
| FR3034128B1 (fr) * | 2015-03-23 | 2017-04-14 | Snecma | Noyau ceramique pour aube de turbine multi-cavites |
| FR3037829B1 (fr) * | 2015-06-29 | 2017-07-21 | Snecma | Noyau pour le moulage d'une aube ayant des cavites superposees et comprenant un trou de depoussierage traversant une cavite de part en part |
| US10989056B2 (en) | 2016-12-05 | 2021-04-27 | Raytheon Technologies Corporation | Integrated squealer pocket tip and tip shelf with hybrid and tip flag core |
| US10465529B2 (en) | 2016-12-05 | 2019-11-05 | United Technologies Corporation | Leading edge hybrid cavities and cores for airfoils of gas turbine engine |
| US10563521B2 (en) | 2016-12-05 | 2020-02-18 | United Technologies Corporation | Aft flowing serpentine cavities and cores for airfoils of gas turbine engines |
| US10815800B2 (en) | 2016-12-05 | 2020-10-27 | Raytheon Technologies Corporation | Radially diffused tip flag |
| US20190003316A1 (en) * | 2017-06-29 | 2019-01-03 | United Technologies Corporation | Helical skin cooling passages for turbine airfoils |
| US11021966B2 (en) * | 2019-04-24 | 2021-06-01 | Raytheon Technologies Corporation | Vane core assemblies and methods |
| US12006836B2 (en) | 2021-07-02 | 2024-06-11 | Rtx Corporation | Cooling arrangement for gas turbine engine component |
| US11913353B2 (en) | 2021-08-06 | 2024-02-27 | Rtx Corporation | Airfoil tip arrangement for gas turbine engine |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59231102A (ja) * | 1983-06-15 | 1984-12-25 | Toshiba Corp | ガスタ−ビンの翼 |
| JPH06102963B2 (ja) * | 1983-12-22 | 1994-12-14 | 株式会社東芝 | ガスタ−ビン空冷翼 |
| US4767268A (en) * | 1987-08-06 | 1988-08-30 | United Technologies Corporation | Triple pass cooled airfoil |
| US4753575A (en) * | 1987-08-06 | 1988-06-28 | United Technologies Corporation | Airfoil with nested cooling channels |
| JPH06137102A (ja) * | 1992-10-26 | 1994-05-17 | Mitsubishi Heavy Ind Ltd | ガスタービン中空動翼 |
| DE69328439T2 (de) * | 1992-11-24 | 2000-12-14 | United Technologies Corp., Hartford | Kühlbare schaufelsstruktur |
| US5403159A (en) * | 1992-11-30 | 1995-04-04 | United Technoligies Corporation | Coolable airfoil structure |
| US5603606A (en) * | 1994-11-14 | 1997-02-18 | Solar Turbines Incorporated | Turbine cooling system |
| EP0954679B1 (en) * | 1996-06-28 | 2003-01-22 | United Technologies Corporation | Coolable airfoil for a gas turbine engine |
| US5931638A (en) * | 1997-08-07 | 1999-08-03 | United Technologies Corporation | Turbomachinery airfoil with optimized heat transfer |
| US5902093A (en) * | 1997-08-22 | 1999-05-11 | General Electric Company | Crack arresting rotor blade |
| JPH11241602A (ja) * | 1998-02-26 | 1999-09-07 | Toshiba Corp | ガスタービン翼 |
| US6168381B1 (en) * | 1999-06-29 | 2001-01-02 | General Electric Company | Airfoil isolated leading edge cooling |
| US6595748B2 (en) * | 2001-08-02 | 2003-07-22 | General Electric Company | Trichannel airfoil leading edge cooling |
| US6637500B2 (en) * | 2001-10-24 | 2003-10-28 | United Technologies Corporation | Cores for use in precision investment casting |
| US6974308B2 (en) * | 2001-11-14 | 2005-12-13 | Honeywell International, Inc. | High effectiveness cooled turbine vane or blade |
| US7059834B2 (en) * | 2003-01-24 | 2006-06-13 | United Technologies Corporation | Turbine blade |
| US6824359B2 (en) * | 2003-01-31 | 2004-11-30 | United Technologies Corporation | Turbine blade |
| US7104757B2 (en) * | 2003-07-29 | 2006-09-12 | Siemens Aktiengesellschaft | Cooled turbine blade |
| US7632071B2 (en) * | 2005-12-15 | 2009-12-15 | United Technologies Corporation | Cooled turbine blade |
-
2005
- 2005-12-22 US US11/317,394 patent/US7413403B2/en active Active
-
2006
- 2006-08-07 SG SG200605356-5A patent/SG133467A1/en unknown
- 2006-08-09 TW TW095129217A patent/TW200724775A/zh unknown
- 2006-09-08 KR KR1020060086548A patent/KR20070066843A/ko not_active Ceased
- 2006-12-12 JP JP2006333937A patent/JP2007170379A/ja active Pending
- 2006-12-18 EP EP06256420.8A patent/EP1801351B1/en active Active
- 2006-12-22 CN CNA2006101686678A patent/CN1987054A/zh active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458715A (zh) * | 2009-04-20 | 2012-05-16 | 西门子公司 | 用于制造燃气轮机的涡轮动叶片的浇铸装置和涡轮动叶片 |
| CN103485839A (zh) * | 2012-06-08 | 2014-01-01 | 通用电气公司 | 涡轮发动机的气动组件 |
| CN106660125A (zh) * | 2014-05-30 | 2017-05-10 | 诺沃皮尼奥内股份有限公司 | 制造涡轮机构件的方法、涡轮机构件和涡轮机 |
| CN111335960A (zh) * | 2018-12-18 | 2020-06-26 | 通用电气公司 | 涡轮发动机翼型件及冷却方法 |
| CN111335960B (zh) * | 2018-12-18 | 2023-06-06 | 通用电气公司 | 涡轮发动机翼型件及冷却方法 |
| CN111677557A (zh) * | 2020-06-08 | 2020-09-18 | 清华大学 | 涡轮导向叶片及具有其的涡轮机械 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1801351A2 (en) | 2007-06-27 |
| US20070147997A1 (en) | 2007-06-28 |
| TW200724775A (en) | 2007-07-01 |
| JP2007170379A (ja) | 2007-07-05 |
| SG133467A1 (en) | 2007-07-30 |
| EP1801351A3 (en) | 2010-11-24 |
| KR20070066843A (ko) | 2007-06-27 |
| EP1801351B1 (en) | 2016-03-02 |
| US7413403B2 (en) | 2008-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1987054A (zh) | 涡轮机叶片末端冷却 | |
| EP1953343B1 (en) | Cooling system for a gas turbine blade and corresponding gas turbine blade | |
| CN101025091B (zh) | 叶片平台冷却回路和方法 | |
| EP1505256B1 (en) | Turbine rotor blade comprising cooling circuits and method for placing the inlets of said circuits | |
| EP1505257B1 (en) | Gas turbine blade circuit cooling | |
| US4203706A (en) | Radial wafer airfoil construction | |
| US6186741B1 (en) | Airfoil component having internal cooling and method of cooling | |
| US7621718B1 (en) | Turbine vane with leading edge fillet region impingement cooling | |
| EP1055800B1 (en) | Turbine airfoil with internal cooling | |
| EP1882816B1 (en) | Radially split serpentine cooling microcircuits | |
| US4177010A (en) | Cooled rotor blade for a gas turbine engine | |
| WO2001000964B1 (en) | Cooled airfoil | |
| EP1273758B1 (en) | Method and device for airfoil film cooling | |
| EP2022941B1 (en) | Turbine blade of a gas turbine engine | |
| CN101008327A (zh) | 薄膜冷却方法和孔的制造 | |
| CA2462986A1 (en) | Method and apparatus for cooling an airfoil | |
| JP2006138317A (ja) | コア組立体およびこれを用いた翼組立体と冷却流路形成方法 | |
| KR20010041915A (ko) | 냉각공기 조절장치를 갖춘 터빈블레이드 조립체 | |
| US7661930B2 (en) | Central cooling circuit for a moving blade of a turbomachine | |
| CN1228135A (zh) | 供冷却燃气透平叶片后缘用的冷却流道的构造 | |
| CN110700894B (zh) | 燃气轮机的涡轮转子叶片及采用其的燃气轮机 | |
| CA2513036C (en) | Airfoil cooling passage trailing edge flow restriction | |
| CN211116137U (zh) | 燃气轮机的涡轮转子叶片及采用其的燃气轮机 | |
| CN106968729B (zh) | 制品及冷却制品的方法 | |
| US20050169762A1 (en) | Turbine blade for an aircraft engine and casting mold for its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |