EP1508670A2 - Aube refroidie de moteur à turbine à gaz - Google Patents
Aube refroidie de moteur à turbine à gaz Download PDFInfo
- Publication number
- EP1508670A2 EP1508670A2 EP04300530A EP04300530A EP1508670A2 EP 1508670 A2 EP1508670 A2 EP 1508670A2 EP 04300530 A EP04300530 A EP 04300530A EP 04300530 A EP04300530 A EP 04300530A EP 1508670 A2 EP1508670 A2 EP 1508670A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade according
- opening
- jacket
- blade
- slide
- 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
- 238000005219 brazing Methods 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 230000010339 dilation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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
- 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
- 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
- F05D2250/14—Two-dimensional elliptical
- F05D2250/141—Two-dimensional elliptical circular
-
- 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
- F05D2250/20—Three-dimensional
- F05D2250/23—Three-dimensional prismatic
- F05D2250/232—Three-dimensional prismatic conical
-
- 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
- F05D2250/20—Three-dimensional
- F05D2250/29—Three-dimensional machined; miscellaneous
- F05D2250/292—Three-dimensional machined; miscellaneous tapered
-
- 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
- F05D2250/30—Arrangement of components
- F05D2250/32—Arrangement of components according to their shape
- F05D2250/323—Arrangement of components according to their shape convergent
-
- 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
- F05D2250/70—Shape
-
- 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
- F05D2250/70—Shape
- F05D2250/71—Shape curved
-
- 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
Definitions
- the present invention relates to the cooling of vanes in a gas turbine engine, in particular turbine nozzle blades.
- the air is compressed in a compressor and is mixed with a fuel in the combustion chamber.
- the outgoing flow of the latter involves one or more turbines, before to be ejected into an ejection nozzle.
- the turbine stages comprise rotors separated by distributors, intended to guide the flow of gas. Because of the temperature gases that run through them, the blades are subject to conditions of very severe operation; it is therefore necessary to cool them, in by forced convection or by air impact, within blades.
- FIG. 1 represents a distributor vane 1 of the prior art, in which the cooling is provided by a longitudinal jacket multiperforated 4.
- Dawn 1 extends between two platforms, a platform interior 3 and an outer platform 2, which delimit the channel ring 5 of gas circulation in the turbine. This channel is subdivided circumferentially by the blades 1.
- the multiperforated jacket 4 is slid longitudinally into the central cavity 6 of the dawn 1.
- a duct 7 supplies the jacket 4 with cold air, withdrawn from the compressor by example. Due to the pressure difference between the interior of the liner 4 and the peripheral zone of the cavity 6 delimited by the wall outer of the shirt 4 and the inner wall of the dawn 1, a part of the air is projected via the perforations of the jacket 4 against the inner wall of the dawn 1, thus ensuring its cooling.
- This air is then evacuated, the along the trailing edge of the blade 1, by calibrated perforations, in the gas vein 5.
- the rest of the air is evacuated through the inner platform 3 in a second conduit 8 which leads to other parts of the engine to cool, such as the turbine disk or bearings.
- the central cavity 6 of the blade 1 comprises two openings 9, 10, at level of the outer platform 2 and the platform respectively 3.
- the liner 4 is slid by the outer opening 9 of the dawn 1, and secured to the platform 2, generally by soldering along the wall of the opening 9.
- the opposite part of the liner 4 is guided in the opening inside 10 of the dawn 1, forming a slide in the platform interior 3 to allow relative movement between the shirt and dawn. Indeed, because of the differences between materials and modes between dawn 1 and jacket 4, as well as between temperatures of operation, it follows a variation of elongation between the blade 1 and the sleeve 4.
- the slide 10 maintains the assembly.
- the blade 1 is formed by casting, while the jacket 4 is formed by forming a sheet. Given the difference between the modes dawn 1 and shirt 4, play along the slide 10 is relatively important; this game results in particular from the tolerances of manufacturing. It creates an air leak at the outlet of the jacket 4, since the pressure in the peripheral zone of the cavity 6 is lower only in the central channel formed by the jacket 4.
- the air leak illustrated by the arrow F has the first disadvantage of causing overpressure in the zone cavity device 6.
- This overpressure is detrimental to the quality internal cooling of the blade 1 and more particularly at the level of the zone of the leading edge which is the hottest zone, since the air passing into the central cavity of the shirt 4 is less likely to be projected through the perforations of the liner 4 against the inner wall of the dawn 1.
- the air coming from the leak does not participate in the cooling of dawn since it is driven directly to the evacuation holes located on the trailing edge.
- the amount of air entrained in the ducts 8 in order to cool other parts of the engine is reduced because of the leak.
- the present invention aims to overcome these disadvantages.
- the invention relates to a gas turbine engine blade. cooled including a casting and a longitudinal jacket obtained by forming sheet metal, the casting part comprising a body longitudinal axis provided with a longitudinal cavity with a first and a second openings at the ends, the jacket being mounted in the cavity by being fixed to the wall of the first opening, and a portion of which end is free to slide in the second opening forming slideway, characterized in that said end portion, guided by the slide, has a narrowing of its passage cross-section for the flow of air evacuated by the jacket.
- the solution of the invention is simple and inexpensive. She presents also the advantage of allowing the calibration of the cooling flow of discs.
- the distributor vane 11 of the invention extends between an outer platform 12 and an inner platform 13 of the gas turbine engine distributor, which delimit an annular channel 15 of circulation of the gas in the turbine. It includes a central cavity 16 longitudinally, providing two outer openings 19 and inner 20, respectively at the level of the outer platform 12 and the platform inside 13.
- a liner 14 is inserted into the central cavity 16 of the blade, providing a peripheral cooling cavity between the outer wall the liner 14 and the inner wall of the blade 11.
- the liner 14 is attached to the wall of the outer opening 19 of the blade 11, by brazing or welding, for example. It is further guided at an end portion 21, in the inner opening 20 forming a slide for this purpose. So, he It is possible to slide in the slideway 20, in order to make the set of dawn solidarity despite the differential dilations between its various elements.
- the shirt 14 is fed, via a conduit 17, with air from colder levels of the turbine engine. Due to the pressure difference between the central cavity of the liner 14 and the peripheral cooling cavity of the cavity 16, part of this air is projected from the central cavity of the shirt to the inner wall of the dawn, by perforations provided for this effect on the liner 14, in particular on the leading edge of the blade 11. This air is then evacuated by calibrated perforations at the edge dawn leak 11.
- the part of the air not projected on the inner wall of the dawn 11 is evacuated from the liner 14 by a duct 18 extending at the level of the inner platform 13, following the slide 20.
- the jacket 14 of the blade 11 of FIG. formed by folding sheet metal is folded in the zone of its end portion 21 guided by the slide 20, so as to form a narrowing 22 for the airflow that is guided into its cavity. More specifically, the narrowing 22 is performed in the area of the end portion 21 of the liner 14 housed inside the slide 20. In the form of embodiment of Figure 4, this folding is curved profile.
- FIG. 5 represents a second embodiment of a shirt 14 'dawn 11.
- a shirt 14 'dawn 11 it is expected, to obtain the same results as before, to solder or solder, at the end of the end portion 21 'of the sleeve 14' intended to be guided by the slide 20, a calibrated plate 23 'pierced, over most of its surface in this case, an opening 24 'of passage of air.
- a portion 22 'of transverse dimensions narrowed relative to the transverse dimensions of the slide 20.
- Fig. 6 shows a third embodiment of a dawn 14 "shirt.
- it is planned to braze, to the end of the end portion 21 “of the jacket 14" intended to be guided by the slide 20, a tube 23 "of conical shape whose cross-sectional dimensions are diminishing as they move away from the end of the jacket 14 ", thus obtaining a portion 22" of narrowed transverse dimensions in relation to transverse dimensions of the slide 20.
- the third embodiment of the shirt of the invention is advantageous compared to the second in that it allows to minimize the losses of load at the entrance of the cone.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
- la figure 1 représente une vue de profil en coupe d'une aube de l'art antérieur ;
- la figure 2 représente une vue de profil en coupe de la chemise dans la glissière de l'aube de la figure 1 ;
- la figure 3 représente une vue de profil en coupe d'une première forme de réalisation de l'aube de l'invention ;
- la figure 4 représente une vue de profil en coupe de la chemise de l'aube de la figure 3 ;
- la figure 5 représente une vue de profil en coupe de la chemise d'une deuxième forme de réalisation de l'aube de l'invention, et
- la figure 6 représente une vue de profil en coupe de la chemise d'une troisième forme de réalisation de l'aube de l'invention.
Claims (8)
- Aube de moteur à turbine à gaz refroidie comprenant une pièce de fonderie (11) et une chemise longitudinale (14, 14', 14") de guidage de flux d'air de refroidissement obtenue par formage de tôle, la pièce de fonderie (11) comportant un corps longitudinal pourvu d'une cavité longitudinale (16) avec une première ouverture (19) d'alimentation et une seconde ouverture (20) d'évacuation d'air aux extrémités, la chemise (14, 14', 14") étant montée dans la cavité (16) en étant fixée à la paroi de la première ouverture (19), et dont une portion d'extrémité (21, 21', 21") est libre de coulisser dans la seconde ouverture formant glissière (20), caractérisée par le fait que ladite portion d'extrémité (21, 21', 21"), guidée par la glissière (20), comprend un rétrécissement (22, 22', 22") de sa section transversale de passage pour le flux d'air.
- Aube selon la revendication 1, dans laquelle la chemise (14, 14', 14") est fixée à la paroi de la première ouverture (19) par soudage ou par brasage.
- Aube selon l'une des revendications 1 ou 2, dans laquelle le rétrécissement (22) est obtenu par pliage de l'extrémité de la chemise (14).
- Aube selon la revendication 3, dans laquelle le pliage est de section de profil courbe.
- Aube selon l'une des revendications 1 ou 2, dans laquelle le rétrécissement (22') est obtenu par fixation d'une plaquette calibrée (23') percée d'une ouverture (24') à l'extrémité de la chemise (14').
- Aube selon l'une des revendications 1 ou 2, dans laquelle le rétrécissement (22") est obtenu par fixation d'un tube (23") de forme conique dont les dimensions transversales vont en diminuant en s'éloignant de l'extrémité de la chemise (14").
- Aube selon l'une des revendications 1 à 6, dans laquelle la chemise (14, 14', 14") est perforée.
- Aube selon la revendication 7, dans laquelle la pièce de fonderie comporte des perforations calibrées.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0309869A FR2858829B1 (fr) | 2003-08-12 | 2003-08-12 | Aube refroidie de moteur a turbine a gaz |
FR0309869 | 2003-08-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1508670A2 true EP1508670A2 (fr) | 2005-02-23 |
EP1508670A3 EP1508670A3 (fr) | 2005-03-09 |
EP1508670B1 EP1508670B1 (fr) | 2017-12-13 |
Family
ID=34043774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04300530.5A Expired - Lifetime EP1508670B1 (fr) | 2003-08-12 | 2004-08-11 | Aube refroidie de moteur à turbine à gaz |
Country Status (7)
Country | Link |
---|---|
US (1) | US7204675B2 (fr) |
EP (1) | EP1508670B1 (fr) |
JP (1) | JP4234650B2 (fr) |
CA (1) | CA2478954C (fr) |
FR (1) | FR2858829B1 (fr) |
RU (1) | RU2351768C2 (fr) |
UA (1) | UA84395C2 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2050930A1 (fr) | 2007-10-19 | 2009-04-22 | Snecma | Aube refroidie de turbomachine |
FR2943380A1 (fr) * | 2009-03-20 | 2010-09-24 | Turbomeca | Aube de distributeur comprenant au moins une fente |
WO2020188212A1 (fr) | 2019-03-20 | 2020-09-24 | Safran Aircraft Engines | Insert tubulaire de refroidissement par impact pour un distributeur de turbomachine |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7921654B1 (en) | 2007-09-07 | 2011-04-12 | Florida Turbine Technologies, Inc. | Cooled turbine stator vane |
FR2921937B1 (fr) * | 2007-10-03 | 2009-12-04 | Snecma | Procede d'aluminisation en phase vapeur d'une piece metallique de turbomachine |
US8353668B2 (en) * | 2009-02-18 | 2013-01-15 | United Technologies Corporation | Airfoil insert having a tab extending away from the body defining a portion of outlet periphery |
IT1394713B1 (it) * | 2009-06-04 | 2012-07-13 | Ansaldo Energia Spa | Pala di turbina |
US8944751B2 (en) * | 2012-01-09 | 2015-02-03 | General Electric Company | Turbine nozzle cooling assembly |
US9771816B2 (en) | 2014-05-07 | 2017-09-26 | General Electric Company | Blade cooling circuit feed duct, exhaust duct, and related cooling structure |
US9638045B2 (en) * | 2014-05-28 | 2017-05-02 | General Electric Company | Cooling structure for stationary blade |
US9745920B2 (en) * | 2014-09-11 | 2017-08-29 | General Electric Company | Gas turbine nozzles with embossments in airfoil cavities |
US9909436B2 (en) | 2015-07-16 | 2018-03-06 | General Electric Company | Cooling structure for stationary blade |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3767322A (en) * | 1971-07-30 | 1973-10-23 | Westinghouse Electric Corp | Internal cooling for turbine vanes |
EP0381955A1 (fr) * | 1989-02-06 | 1990-08-16 | Westinghouse Electric Corporation | Turbine à gaz avec des aubes refroidies par air |
US5511937A (en) * | 1994-09-30 | 1996-04-30 | Westinghouse Electric Corporation | Gas turbine airfoil with a cooling air regulating seal |
EP0974733A2 (fr) * | 1998-07-22 | 2000-01-26 | General Electric Company | Aubes de guidage pour une turbine ayant un système de transfert de l'air de refroidissement |
US6109867A (en) * | 1997-11-27 | 2000-08-29 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." | Cooled turbine-nozzle vane |
EP1149982A2 (fr) * | 2000-04-11 | 2001-10-31 | General Electric Company | Procédé d'insertion une structure interieure dans une aube de turbine a gaz |
EP1154124A1 (fr) * | 2000-05-10 | 2001-11-14 | General Electric Company | Aube refroidie par impact |
EP1160418A2 (fr) * | 2000-06-01 | 2001-12-05 | General Electric Company | Echappement de vapeur des cavitées à l'arête arrière des aillettes de turbine |
EP1191189A1 (fr) * | 2000-09-26 | 2002-03-27 | Siemens Aktiengesellschaft | Aube de turbine à gaz |
EP1251243A1 (fr) * | 2001-04-19 | 2002-10-23 | Snecma Moteurs | Aube pour turbine comportant un déflecteur d'air de refroidissement |
US20030026689A1 (en) * | 2001-08-03 | 2003-02-06 | Burdgick Steven Sebastian | Turbine vane segment and impingement insert configuration for fail-safe impingement insert retention |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4288201A (en) * | 1979-09-14 | 1981-09-08 | United Technologies Corporation | Vane cooling structure |
JP3480069B2 (ja) * | 1994-10-11 | 2003-12-15 | 石川島播磨重工業株式会社 | ジェットエンジンの固定冷却翼 |
US5749701A (en) * | 1996-10-28 | 1998-05-12 | General Electric Company | Interstage seal assembly for a turbine |
US7008185B2 (en) * | 2003-02-27 | 2006-03-07 | General Electric Company | Gas turbine engine turbine nozzle bifurcated impingement baffle |
-
2003
- 2003-08-12 FR FR0309869A patent/FR2858829B1/fr not_active Expired - Lifetime
-
2004
- 2004-08-11 JP JP2004234330A patent/JP4234650B2/ja not_active Expired - Fee Related
- 2004-08-11 EP EP04300530.5A patent/EP1508670B1/fr not_active Expired - Lifetime
- 2004-08-11 RU RU2004124543/06A patent/RU2351768C2/ru not_active IP Right Cessation
- 2004-08-11 UA UA20040806736A patent/UA84395C2/uk unknown
- 2004-08-12 CA CA2478954A patent/CA2478954C/fr not_active Expired - Fee Related
- 2004-08-12 US US10/916,435 patent/US7204675B2/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3767322A (en) * | 1971-07-30 | 1973-10-23 | Westinghouse Electric Corp | Internal cooling for turbine vanes |
EP0381955A1 (fr) * | 1989-02-06 | 1990-08-16 | Westinghouse Electric Corporation | Turbine à gaz avec des aubes refroidies par air |
US5511937A (en) * | 1994-09-30 | 1996-04-30 | Westinghouse Electric Corporation | Gas turbine airfoil with a cooling air regulating seal |
US6109867A (en) * | 1997-11-27 | 2000-08-29 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." | Cooled turbine-nozzle vane |
EP0974733A2 (fr) * | 1998-07-22 | 2000-01-26 | General Electric Company | Aubes de guidage pour une turbine ayant un système de transfert de l'air de refroidissement |
EP1149982A2 (fr) * | 2000-04-11 | 2001-10-31 | General Electric Company | Procédé d'insertion une structure interieure dans une aube de turbine a gaz |
EP1154124A1 (fr) * | 2000-05-10 | 2001-11-14 | General Electric Company | Aube refroidie par impact |
EP1160418A2 (fr) * | 2000-06-01 | 2001-12-05 | General Electric Company | Echappement de vapeur des cavitées à l'arête arrière des aillettes de turbine |
EP1191189A1 (fr) * | 2000-09-26 | 2002-03-27 | Siemens Aktiengesellschaft | Aube de turbine à gaz |
EP1251243A1 (fr) * | 2001-04-19 | 2002-10-23 | Snecma Moteurs | Aube pour turbine comportant un déflecteur d'air de refroidissement |
US20030026689A1 (en) * | 2001-08-03 | 2003-02-06 | Burdgick Steven Sebastian | Turbine vane segment and impingement insert configuration for fail-safe impingement insert retention |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2050930A1 (fr) | 2007-10-19 | 2009-04-22 | Snecma | Aube refroidie de turbomachine |
FR2943380A1 (fr) * | 2009-03-20 | 2010-09-24 | Turbomeca | Aube de distributeur comprenant au moins une fente |
WO2020188212A1 (fr) | 2019-03-20 | 2020-09-24 | Safran Aircraft Engines | Insert tubulaire de refroidissement par impact pour un distributeur de turbomachine |
FR3094034A1 (fr) | 2019-03-20 | 2020-09-25 | Safran Aircraft Engines | Chemise tubulaire de ventilation pour un distributeur de turbomachine |
US11434769B2 (en) | 2019-03-20 | 2022-09-06 | Safran Aircraft Engines | Impact-cooling tubular insert for a turbomachine distributor |
Also Published As
Publication number | Publication date |
---|---|
RU2004124543A (ru) | 2006-01-27 |
UA84395C2 (uk) | 2008-10-27 |
JP4234650B2 (ja) | 2009-03-04 |
US20050089395A1 (en) | 2005-04-28 |
US7204675B2 (en) | 2007-04-17 |
RU2351768C2 (ru) | 2009-04-10 |
FR2858829B1 (fr) | 2008-03-14 |
JP2005061412A (ja) | 2005-03-10 |
FR2858829A1 (fr) | 2005-02-18 |
CA2478954A1 (fr) | 2005-02-12 |
CA2478954C (fr) | 2012-05-01 |
EP1508670A3 (fr) | 2005-03-09 |
EP1508670B1 (fr) | 2017-12-13 |
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