EP1164253A1 - Système de ventilation d'une paire de plates-formes d'aubes juxtaposées - Google Patents
Système de ventilation d'une paire de plates-formes d'aubes juxtaposées Download PDFInfo
- Publication number
- EP1164253A1 EP1164253A1 EP01401534A EP01401534A EP1164253A1 EP 1164253 A1 EP1164253 A1 EP 1164253A1 EP 01401534 A EP01401534 A EP 01401534A EP 01401534 A EP01401534 A EP 01401534A EP 1164253 A1 EP1164253 A1 EP 1164253A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- platforms
- holes
- ventilation
- bosses
- cavity
- 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.)
- Granted
Links
Images
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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/005—Sealing means between non relatively rotating elements
- F01D11/006—Sealing the gap between rotor blades or blades and rotor
- F01D11/008—Sealing the gap between rotor blades or blades and rotor by spacer elements between the blades, e.g. independent interblade platforms
-
- 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
- F01D11/006—Sealing the gap between rotor blades or blades 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
- F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/80—Platforms for stationary or moving blades
- F05B2240/801—Platforms for stationary or moving blades cooled platforms
-
- 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
- F05D2240/81—Cooled platforms
Definitions
- the subject of this invention is a system ventilation of a pair of blade platforms juxtaposed.
- the ventilation systems found in turbomachinery are generally used for blowing a stream of gas over a portion of the structure brought to a different temperature for this gas to protect it excessive heating or, in some applications, to adjust its thermal expansion and perform a game setting that improves performance of the machine.
- the cavities can be taken advantage of by blowing gas ventilation. However, it would come out of the cavities by the juxtaposition gaps of the platforms and would have little effect. This is why we have still sealing means placed under the platforms and which obstruct the interstices of juxtaposition.
- the sealing parts are designed to let the ventilation gas get to the portions platforms that you want to ventilate; these portions have vent holes that gas crosses to leave the cavities. It is especially in running through these vent holes that the gas produces the desired heat exchange.
- the invention may be held for a improvement of the system described in the patent French 2,758,855, where the sealing parts are metal sleeves made of a sheet metal which rests under the underside of the platforms and that the forces centrifugals produced on the moving blades during machine operation press against platforms.
- the sheet is provided with holes that crosses the ventilation gas to reach the platforms; these holes lead into collecting dimples dug in the platforms and which constitute the ends of coils, that is to say sinuous conduits, still dug in the platforms and that the ventilation gases must browse to reach the vent holes crossing the platforms.
- the heat exchange is accomplished by convection. However, it was concluded that this provision was not effective enough.
- the object of the invention is therefore to improve the sheet metal or metal sheet sealing jacket so as to increase the heat exchange due to gas ventilation, without compromising the tightness and obtaining satisfactory vibration damping blade platforms.
- the shirt is provided with bosses at the location of holes, chambers being formed between the platforms and the bosses, and the vent holes opening into the bedrooms. It follows from this that the ventilation gas crossing the holes of the shirt is blown towards platforms at a speed that increases exchange heat from impact against platforms which is realized.
- the bosses lengthen parallel to a junction of the platforms of so as to each include several holes or several vent holes; he is otherwise advantageous that the vent holes make respectively facing the holes to facilitate the flow of ventilation gases.
- FIG. 1 is a front view of a pair of blades
- FIG. 2 is a perspective view of the system.
- the vanes envisaged in the invention can be mobile turbine blades, in particular first stage of a high pressure turbine, which are subject to very high temperature rises in the chamber of neighboring combustion, and which are inserted in grooves of a disc 1. They include a foot 2 engaged in a groove of the disc 1, a stilt 3, and a blade 4 placed in the gas flow stream of combustion 5 and which constitutes the useful part of dawn. In addition, they include a platform 6 substantially in an arc and extending around the junction of the stilt 3 and the blade 4. The platforms 6 of a pair of neighboring blades are juxtaposed in leaving only a gap 7 between them, which unites the vein 5 with a cavity 8 delimited by the platforms 6 and stilts 3 of the adjacent blades and by the disc 1. This interstice 7 is closed by a sealing part consisting here of a jacket 9 in metal sheet placed in the cavity 8 and covering the underside of platforms 6 and the gap 7 from one stilt 3 to another.
- Fresh ventilation gas is blown in the cavity 8 by a conduit such as 10 dug at through foot 2 and stilt 3 of one of the blades neighbors or through an inter-blade hole upstream of the cavity 8.
- the gas usually comes from compressors or turbine. But like the possibilities to build the circuit of conduit 10 are numerous and have been extensively described elsewhere, we will not recall them here.
- Ports 11 cross the platforms 6 aux places to wear cooling while allowing gas to exit the cavity 8 and join the vein 5.
- the shirt 9 is provided with holes 12 located respectively opposite the vent holes 11; in addition, bosses 13 are formed on the jacket 9 at the locations of these holes 12 in order to form chambers 14 therebetween and platforms 6. We see in Figure 2 that the bosses 13 have a longitudinal extension parallel to interstice 7 to encompass multiple orifices 11 and holes 12.
- bosses The purpose of the bosses is that the ventilation gas passing through the holes 12 and blown to platforms 6 cools them by impact, more strongly than in design anterior where cooling was achieved by convection.
- the shirt 9 substantially matches the surface bottom of the platforms 6 outside the bosses 12, except maybe at the ends, which can be curved. It is flexible enough to rest well under platforms 6, with some pressure, when centrifugal forces from the rotation of the disk 1 are applied to it, and then contributes to dampen their vibrations.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims (3)
- Système de ventilation d'une paire de plates-formes (6) d'aubes juxtaposées et couvrant une cavité (8), comprenant des moyens (10) pour insuffler du gaz de ventilation dans la cavité, une chemise (9) d'étanchéité disposée sous les plates-formes dans la cavité et munie de perçages (12), et des orifices d'éventement (11) traversant les plates-formes, caractérisé en ce que la chemise est munie de bossages (13) à l'emplacement des perçages (12), des chambres (14) étant formées entre les plates-formes et les bossages, les orifices d'éventement débouchant dans les chambres.
- Système de ventilation d'une paire de plates-formes d'aubes suivant la revendication 1, caractérisé en ce que les bossages s'allongent parallèlement à une jonction (7) des plates-formes.
- Système de ventilation d'une paire de plates-formes d'aubes suivant l'une quelconque des revendications 1 ou 2, caractérisé en ce que les orifices d'éventement (11) font respectivement face aux perçages (12).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0007611A FR2810365B1 (fr) | 2000-06-15 | 2000-06-15 | Systeme de ventilation d'une paire de plates-formes d'aubes juxtaposees |
FR0007611 | 2000-06-15 | ||
US09/883,948 US6457935B1 (en) | 2000-06-15 | 2001-06-20 | System for ventilating a pair of juxtaposed vane platforms |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1164253A1 true EP1164253A1 (fr) | 2001-12-19 |
EP1164253B1 EP1164253B1 (fr) | 2005-03-02 |
Family
ID=26212467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01401534A Expired - Lifetime EP1164253B1 (fr) | 2000-06-15 | 2001-06-14 | Système de ventilation d'une paire de plates-formes d'aubes juxtaposées |
Country Status (4)
Country | Link |
---|---|
US (1) | US6457935B1 (fr) |
EP (1) | EP1164253B1 (fr) |
JP (1) | JP4047560B2 (fr) |
FR (1) | FR2810365B1 (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1496199A3 (fr) * | 2003-07-11 | 2007-04-04 | Rolls-Royce Deutschland Ltd & Co KG | Roue de turbine refroidie pour un moteur d'avion |
EP2055898A2 (fr) * | 2007-11-02 | 2009-05-06 | United Technologies Corporation | Aube de turbine dotée de refroidissement de plate-forme |
FR2927357A1 (fr) * | 2008-02-12 | 2009-08-14 | Snecma Sa | Dispositif d'amortissement des vibrations entre deux aubes de roue aubagee de turbomachine |
WO2010103551A1 (fr) * | 2009-03-09 | 2010-09-16 | Avio S.P.A. | Rotor pour turbomachines |
FR2974387A1 (fr) * | 2011-04-19 | 2012-10-26 | Snecma | Roue de turbine pour une turbomachine |
FR2981979A1 (fr) * | 2011-10-28 | 2013-05-03 | Snecma | Roue de turbine pour une turbomachine |
EP2110515A3 (fr) * | 2008-04-16 | 2013-07-03 | Rolls-Royce plc | Système de refroidissement situé entre deux plateformes d'aubes pour un moteur à turbine à gaz |
EP2540971B1 (fr) * | 2011-06-27 | 2019-04-03 | General Electric Company | Procédé de fabrication d'un passage de refroidissement de plate-forme dans une aube de rotor de turbine, et aube de rotor de turbine associé |
US10851661B2 (en) | 2017-08-01 | 2020-12-01 | General Electric Company | Sealing system for a rotary machine and method of assembling same |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2411697B (en) * | 2004-03-06 | 2006-06-21 | Rolls Royce Plc | A turbine having a cooling arrangement |
US7198467B2 (en) * | 2004-07-30 | 2007-04-03 | General Electric Company | Method and apparatus for cooling gas turbine engine rotor blades |
US20060056968A1 (en) * | 2004-09-15 | 2006-03-16 | General Electric Company | Apparatus and methods for cooling turbine bucket platforms |
US7186089B2 (en) * | 2004-11-04 | 2007-03-06 | Siemens Power Generation, Inc. | Cooling system for a platform of a turbine blade |
GB2420162A (en) * | 2004-11-16 | 2006-05-17 | Cross Mfg Company | A seal arrangement for sealing between turbine blades |
US20060269409A1 (en) * | 2005-05-27 | 2006-11-30 | Mitsubishi Heavy Industries, Ltd. | Gas turbine moving blade having a platform, a method of forming the moving blade, a sealing plate, and a gas turbine having these elements |
GB0523106D0 (en) | 2005-11-12 | 2005-12-21 | Rolls Royce Plc | A cooliing arrangement |
DE502006006344D1 (de) * | 2006-10-16 | 2010-04-15 | Siemens Ag | Turbinenschaufel für eine Turbine mit einem Kühlmittelkanal |
JP5129633B2 (ja) * | 2008-03-28 | 2013-01-30 | 三菱重工業株式会社 | 冷却通路用カバーおよび該カバーの製造方法ならびにガスタービン |
US8240987B2 (en) * | 2008-08-15 | 2012-08-14 | United Technologies Corp. | Gas turbine engine systems involving baffle assemblies |
US8292587B2 (en) * | 2008-12-18 | 2012-10-23 | Honeywell International Inc. | Turbine blade assemblies and methods of manufacturing the same |
EP2282014A1 (fr) * | 2009-06-23 | 2011-02-09 | Siemens Aktiengesellschaft | Section de canal d'écoulement annulaire pour une turbomachine |
US8356978B2 (en) * | 2009-11-23 | 2013-01-22 | United Technologies Corporation | Turbine airfoil platform cooling core |
WO2011084040A2 (fr) * | 2010-01-05 | 2011-07-14 | Alibi Akhmejanov | Procédé de blocage d'éléments mobiles et dispositif permettant de le réaliser |
US8777568B2 (en) * | 2010-09-30 | 2014-07-15 | General Electric Company | Apparatus and methods for cooling platform regions of turbine rotor blades |
US8814517B2 (en) * | 2010-09-30 | 2014-08-26 | General Electric Company | Apparatus and methods for cooling platform regions of turbine rotor blades |
GB201016597D0 (en) | 2010-10-04 | 2010-11-17 | Rolls Royce Plc | Turbine disc cooling arrangement |
US8641368B1 (en) * | 2011-01-25 | 2014-02-04 | Florida Turbine Technologies, Inc. | Industrial turbine blade with platform cooling |
RU2460886C1 (ru) * | 2011-04-26 | 2012-09-10 | Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") | Ротор турбины |
FR2981132B1 (fr) * | 2011-10-10 | 2013-12-06 | Snecma | Ensemble pour turbomachine a refroidissement de disque |
US8840370B2 (en) | 2011-11-04 | 2014-09-23 | General Electric Company | Bucket assembly for turbine system |
US8845289B2 (en) | 2011-11-04 | 2014-09-30 | General Electric Company | Bucket assembly for turbine system |
US8870525B2 (en) | 2011-11-04 | 2014-10-28 | General Electric Company | Bucket assembly for turbine system |
CN103982250B (zh) * | 2014-05-12 | 2015-07-22 | 天津大学 | 具有冷却功能的金属橡胶减振器 |
JP6422308B2 (ja) * | 2014-11-05 | 2018-11-14 | 三菱日立パワーシステムズ株式会社 | シール構造を備えたガスタービン |
US10030523B2 (en) * | 2015-02-13 | 2018-07-24 | United Technologies Corporation | Article having cooling passage with undulating profile |
US10066488B2 (en) * | 2015-12-01 | 2018-09-04 | General Electric Company | Turbomachine blade with generally radial cooling conduit to wheel space |
DE102016104957A1 (de) * | 2016-03-17 | 2017-09-21 | Rolls-Royce Deutschland Ltd & Co Kg | Kühleinrichtung zur Kühlung von Plattformen eines Leitschaufelkranzes einer Gasturbine |
RU2695160C2 (ru) * | 2017-06-06 | 2019-07-22 | ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Брянский государственный технический университет" | Устройство демпфирования колебаний ротора газотурбинного двигателя |
US20190085706A1 (en) * | 2017-09-18 | 2019-03-21 | General Electric Company | Turbine engine airfoil assembly |
FR3094034B1 (fr) * | 2019-03-20 | 2021-03-19 | Safran Aircraft Engines | Chemise tubulaire de ventilation pour un distributeur de turbomachine |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6022002A (ja) * | 1983-07-18 | 1985-02-04 | Hitachi Ltd | タ−ボ機械の翼構造 |
DE3730411A1 (de) * | 1986-09-17 | 1988-04-07 | Rolls Royce Plc | Dichtung |
US4767260A (en) * | 1986-11-07 | 1988-08-30 | United Technologies Corporation | Stator vane platform cooling means |
EP0357984A1 (fr) * | 1988-08-31 | 1990-03-14 | Westinghouse Electric Corporation | Turbine à gaz à refroidissement pelliculaire de frettes de distributeur |
US5281097A (en) * | 1992-11-20 | 1994-01-25 | General Electric Company | Thermal control damper for turbine rotors |
GB2280935A (en) * | 1993-06-12 | 1995-02-15 | Rolls Royce Plc | Cooled sealing strip for nozzle guide vane segments |
US5513955A (en) * | 1994-12-14 | 1996-05-07 | United Technologies Corporation | Turbine engine rotor blade platform seal |
FR2758855A1 (fr) | 1997-01-30 | 1998-07-31 | Snecma | Systeme de ventilation des plates-formes des aubes mobiles |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB612097A (en) * | 1946-10-09 | 1948-11-08 | English Electric Co Ltd | Improvements in and relating to the cooling of gas turbine rotors |
GB1259750A (en) * | 1970-07-23 | 1972-01-12 | Rolls Royce | Rotor for a fluid flow machine |
US5075621A (en) | 1988-12-19 | 1991-12-24 | International Business Machines Corporation | Capacitor power probe |
FR2726323B1 (fr) * | 1994-10-26 | 1996-12-13 | Snecma | Ensemble d'un disque rotatif et d'aubes, notamment utilise dans une turbomachine |
US5573375A (en) * | 1994-12-14 | 1996-11-12 | United Technologies Corporation | Turbine engine rotor blade platform sealing and vibration damping device |
-
2000
- 2000-06-15 FR FR0007611A patent/FR2810365B1/fr not_active Expired - Fee Related
-
2001
- 2001-06-14 JP JP2001180380A patent/JP4047560B2/ja not_active Expired - Lifetime
- 2001-06-14 EP EP01401534A patent/EP1164253B1/fr not_active Expired - Lifetime
- 2001-06-20 US US09/883,948 patent/US6457935B1/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6022002A (ja) * | 1983-07-18 | 1985-02-04 | Hitachi Ltd | タ−ボ機械の翼構造 |
DE3730411A1 (de) * | 1986-09-17 | 1988-04-07 | Rolls Royce Plc | Dichtung |
US4767260A (en) * | 1986-11-07 | 1988-08-30 | United Technologies Corporation | Stator vane platform cooling means |
EP0357984A1 (fr) * | 1988-08-31 | 1990-03-14 | Westinghouse Electric Corporation | Turbine à gaz à refroidissement pelliculaire de frettes de distributeur |
US5281097A (en) * | 1992-11-20 | 1994-01-25 | General Electric Company | Thermal control damper for turbine rotors |
GB2280935A (en) * | 1993-06-12 | 1995-02-15 | Rolls Royce Plc | Cooled sealing strip for nozzle guide vane segments |
US5513955A (en) * | 1994-12-14 | 1996-05-07 | United Technologies Corporation | Turbine engine rotor blade platform seal |
FR2758855A1 (fr) | 1997-01-30 | 1998-07-31 | Snecma | Systeme de ventilation des plates-formes des aubes mobiles |
US6017189A (en) * | 1997-01-30 | 2000-01-25 | Societe National D'etede Et De Construction De Moteurs D'aviation (S.N.E.C.M.A.) | Cooling system for turbine blade platforms |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 009, no. 142 (M - 388) 18 June 1985 (1985-06-18) * |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1496199A3 (fr) * | 2003-07-11 | 2007-04-04 | Rolls-Royce Deutschland Ltd & Co KG | Roue de turbine refroidie pour un moteur d'avion |
EP2055898A3 (fr) * | 2007-11-02 | 2012-10-31 | United Technologies Corporation | Aube de turbine dotée de refroidissement de plate-forme |
EP2055898A2 (fr) * | 2007-11-02 | 2009-05-06 | United Technologies Corporation | Aube de turbine dotée de refroidissement de plate-forme |
FR2927357A1 (fr) * | 2008-02-12 | 2009-08-14 | Snecma Sa | Dispositif d'amortissement des vibrations entre deux aubes de roue aubagee de turbomachine |
EP2110515A3 (fr) * | 2008-04-16 | 2013-07-03 | Rolls-Royce plc | Système de refroidissement situé entre deux plateformes d'aubes pour un moteur à turbine à gaz |
US9121293B2 (en) | 2009-03-09 | 2015-09-01 | Avio S.P.A. | Rotor for turbomachines |
WO2010103551A1 (fr) * | 2009-03-09 | 2010-09-16 | Avio S.P.A. | Rotor pour turbomachines |
FR2974387A1 (fr) * | 2011-04-19 | 2012-10-26 | Snecma | Roue de turbine pour une turbomachine |
US8961137B2 (en) | 2011-04-19 | 2015-02-24 | Snecma | Turbine wheel for a turbine engine |
EP2540971B1 (fr) * | 2011-06-27 | 2019-04-03 | General Electric Company | Procédé de fabrication d'un passage de refroidissement de plate-forme dans une aube de rotor de turbine, et aube de rotor de turbine associé |
FR2981979A1 (fr) * | 2011-10-28 | 2013-05-03 | Snecma | Roue de turbine pour une turbomachine |
US9863263B2 (en) | 2011-10-28 | 2018-01-09 | Snecma | Turbine wheel for a turbine engine |
US10851661B2 (en) | 2017-08-01 | 2020-12-01 | General Electric Company | Sealing system for a rotary machine and method of assembling same |
Also Published As
Publication number | Publication date |
---|---|
FR2810365A1 (fr) | 2001-12-21 |
JP4047560B2 (ja) | 2008-02-13 |
US6457935B1 (en) | 2002-10-01 |
EP1164253B1 (fr) | 2005-03-02 |
FR2810365B1 (fr) | 2002-10-11 |
JP2002021503A (ja) | 2002-01-23 |
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