EP1450005A1 - Dispositif de refroidissement de disques de turbines - Google Patents
Dispositif de refroidissement de disques de turbines Download PDFInfo
- Publication number
- EP1450005A1 EP1450005A1 EP04290324A EP04290324A EP1450005A1 EP 1450005 A1 EP1450005 A1 EP 1450005A1 EP 04290324 A EP04290324 A EP 04290324A EP 04290324 A EP04290324 A EP 04290324A EP 1450005 A1 EP1450005 A1 EP 1450005A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- upstream
- flange
- annular
- wall
- downstream
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 71
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 72
- 238000002347 injection Methods 0.000 claims description 38
- 239000007924 injection Substances 0.000 claims description 38
- 238000007789 sealing Methods 0.000 claims description 13
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 244000261422 Lysimachia clethroides Species 0.000 description 2
- 206010013647 Drowning Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
- F01D5/082—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades on the side of the rotor disc
Definitions
- the present invention relates to the general field of cooling of high-pressure and low-pressure turbine discs of a turbomachine. It relates more particularly to a device for cooling the disc of the moving blades of the high-pressure turbine and the discs of the rotating blades of the low-pressure turbine of a turbomachine.
- the cooling of the high and low pressure turbines are generally provided by injection air from the distributor of the low-pressure turbine by through annular flanges mounted on a platform lower support of a fixed vane of the distributor.
- Figure 7 schematically represents the junction between the high and low turbines pressure of a turbomachine with a cooling device of the type known.
- three annular flanges 100 are fixed to a lower platform 102 for supporting a fixed vane 104 of the distributor 106 of the low-pressure turbine.
- the assembly of these flanges creates a annular cavity 108 supplied with cooling air by sockets 110 connecting air from the base of the fixed blade 104 of the distributor.
- Holes 112 made in the flanges 100 allow inject cooling air to a disc 114 of a moving blade 116 from the high-pressure turbine and a disc 118 from a rotary vane 120 of the low-pressure turbine.
- a fourth annular flange 122 extending radially between the assembly of the three flanges 100 and a flange 124 of the disc 114 of the movable blade allows the assembly to delimit a high-pressure enclosure 126 and a low-pressure enclosure 128.
- the quality of the cooling of the high turbine discs and low pressure depends in particular on the cooling air supply of the injection cavity defined by the annular flanges of the cooling. In particular, it is important to obtain a perfect sealing of this cavity and avoiding pressure drops at the level of feeding it. The pressure losses generally result of poor quality of the air flow at the outlet of the sockets link.
- the flow of air from the connecting sockets 110 undergoes a change of direction important (represented by arrow 130) which is the source of losses of charge detrimental to the proper functioning of the device.
- a gooseneck distributor characterized by lower and upper platforms for supporting the stationary blades which are elongated to increase performance aerodynamics of the low-pressure turbine.
- the flanges of the cooling device the turbine discs are bent in order to adapt to the elongated geometry of the lower platform of the distributor so that the cooling air from the foot of the blades fixed undergoes significant direction changes.
- level of these bends in the flasks, areas with high pressure drops are also significantly more pronounced when it comes to a turbine distributor low pressure says "swan neck”.
- the present invention therefore aims to overcome such drawbacks by proposing a device for cooling turbine discs, particularly adapted to a geometry of the gooseneck distributor, which reduces pressure losses while maintaining perfect seal.
- a cooling device is provided. low-pressure and high-pressure turbine engine discs, the device being supplied with cooling air from at least one air orifice made through a lower annular platform of support of at least one fixed blade of the low-pressure turbine and arranged between an upstream flange and a downstream flange of the lower platform, characterized in that it comprises: an upstream annular flange extending radially from the upstream flange of the lower platform; a flask downstream annular extending radially from the downstream flange of the platform lower, the upstream and downstream flanges delimiting longitudinally at least one annular cooling air cavity; a device sealing extending longitudinally between said upstream flanges and downstream so as to seal the air cavity of cooling; means for holding the upstream and downstream flanges against the upstream and downstream flanges of the lower platform; and an a plurality of holes for injecting cooling air into the turbine discs.
- the assembly of these flanges makes it possible to limit the losses load by creating a perfectly cool air cavity waterproof.
- the upstream and downstream flanges of the cooling device do not form no elbows so the air cavity can be directly supplied without pressure drop from the air opening through of a lower platform.
- the cooling device does not has only two flanges which constitutes a gain in mass by compared to the devices of the prior art.
- the upstream flange has a connecting part with the lower platform formed of an annular wall substantially radial, and an injection part formed by a first annular wall substantially radial offset radially and longitudinally downstream relative to the connecting part, a second annular wall substantially radial offset longitudinally downstream from the first radial wall, and a first annular wall substantially longitudinal extending between the radial wall of the connecting part and the second radial wall of the injection part so as to divide longitudinally the cooling air cavity in a lower area and upper area.
- the injection part of the upstream flange further comprises a second substantially longitudinal annular wall extending between the first and second radial walls and disposed between the first wall longitudinal and the sealing device so as to divide the area lower into a mounting area and an injection area.
- a plurality substantially radial partitions extending between the first and second longitudinal walls and arranged perpendicular to the first and second radial walls to divide the mounting area into a plurality of annular cavities.
- the first longitudinal wall of the injection part of the upstream flange has communication openings between the zones lower and upper so as to supply cooling air to the minus an annular cavity, these communication openings being radially aligned with the air opening made through the platform lower.
- This or these annular cavities supplied with air from cooling includes, at the second longitudinal wall, at minus a passage allowing the air injection area to be supplied with cooling.
- the injection area has a plurality of holes practiced in the first and second radial walls of the part injector of the upstream flange in order to inject the cooling air to the turbine discs.
- Connection tubes are advantageously arranged in each communication opening in order to supply air to cooling the annular cavity or cavities.
- radial retention of each of these connecting tubes can be provided and the second radial wall of the injection part of the upstream flange can have a plurality of annular windows for mounting the tubes link.
- downstream flange advantageously comprises a part connecting with the lower platform formed by an annular wall substantially radial, and a part for holding the upstream flange formed a substantially radial annular wall offset radially and longitudinally upstream with respect to the connecting part and disposed against the second radial wall of the injection portion of the flange upstream, and a longitudinal wall extending between the radial walls of the connecting part and the holding part.
- the cooling device may further include a additional annular flange extending radially between the device impeller sealing flange and disc high-pressure so as to define a high-pressure enclosure and a low-pressure enclosure on either side of the cooling device.
- Stiffening elements are preferably arranged between ends additional ring flange to improve behavior dynamics of the cooling device.
- Figure 1 shows in longitudinal section a device for cooling according to the invention in its environment.
- FIG. 1 shows in particular a high-pressure turbine 10 of longitudinal axis X-X provided with a plurality of movable blades 12 (only one is shown in Figure 1).
- the movable blades 12 are all mounted on an annular disc 14 animated by a movement of rotation around the longitudinal axis X-X.
- a low-pressure turbine 16 also of longitudinal axis X-X, is arranged downstream of the turbine high pressure 10 in the direction F of the flow of gas from the high pressure turbine.
- the low-pressure turbine 16 has several turbine stages (only one stage is fully shown in the figure 1) which each consist of a distributor 18 and a plurality of blades rotary 20 placed behind each distributor.
- Rotary blades 20 are all mounted on an annular disc 22 rotated around the longitudinal axis X-X.
- each distributor 18 is formed of a plurality of fixed vanes 24 supported by an annular platform upper 26 and a lower annular platform 28.
- the distributor 18 of the first stage of the turbine low pressure has a swan neck configuration, i.e. the upper 26 and lower 28 platforms thereof are elongated so to increase the distance between the leading edge of the stationary vanes 24 of the distributor and the trailing edge of the moving blades 12 of the high-pressure turbine 10.
- This configuration improves the performance of the low pressure turbine.
- the present invention can also apply to low-pressure turbine distributors whose platforms support blades are not elongated.
- the device 30 for cooling the disc 14 of the moving blades 12 of the high-pressure turbine and of the disc 22 of the rotary blades 20 of the low-pressure turbine is notably constituted by assembling an upstream annular flange 32 with a flange downstream annular 34.
- the upstream 32 and downstream 34 flanges are each provided in the form of a ring whose axis of symmetry coincides with the axis longitudinal X-X of high and low pressure turbines.
- the upstream flange 32 extends radially from a flange 36 disposed at an upstream end of the lower platform 28, while the downstream flange 34 extends radially from a flange 38 disposed at a downstream end of the same platform.
- These upstream and downstream flanges thus define a annular enclosure 40 which is sealed by a device sealing, for example by an annular plate 42 fixed between the free ends of the upstream and downstream flanges.
- the annular enclosure 40 is supplied with air from a cooling circuit which equips each fixed vane 24 of the distributor 18.
- air which is by example taken from the high-pressure compressor of the turbomachine, is introduced into each stationary vane 24 of the distributor by its summit, then circulates in the fixed dawn following a delimited path by a cooling cavity (not shown) possibly fitted with a shirt before being evacuated, particularly at the foot 24a of the blade by orifices 44 passing through the lower platform 28.
- a cooling cavity possibly fitted with a shirt
- air evacuation orifices 44 are arranged at the foot 24a of each blade, between the upstream flange 36 and the downstream flange 38 of the platform lower.
- upstream and downstream flanges we will now describe, more precisely, the geometry of these upstream and downstream flanges.
- the upper end of a flange is defined as opposed to the lower end of it as the end of the flange furthest from the longitudinal axis XX.
- the concept of upstream and downstream is interpreted in relation to the meaning gas flow F from the high-pressure turbine.
- the upstream and downstream flanges each have a connecting part with the upstream and downstream flanges 36 38 of the lower platform 28 of the distributor 18.
- These flanges making projecting radially from the lower platform, the parts of connection are formed by annular walls 46, 48 extending radially from so as to come to rest against these flanges during the assembly of the platform lower 28 on the cooling device. The means of maintenance of the connecting parts of the upstream and downstream flanges against the flanges will be described later.
- the upstream flange 32 further comprises an injection part in particular formed of a first annular wall 50 extending radially and which is offset longitudinally downstream relative to the wall 46 of its connecting part, and a second annular wall 52 extending radially and which is offset from the first wall 50, both radially towards the longitudinal axis X-X and longitudinally downstream.
- a first longitudinal annular wall 54 connects one end bottom of the wall 46 of the connecting part at an upper end of the second wall 52. This first longitudinal wall thus divides the annular enclosure 40 in a lower zone 40a and an upper zone 40b.
- the injection part of the upstream flange further comprises a second longitudinal wall annular 56 which extends between the first and second radial walls 50, 52.
- This second longitudinal wall 56 is moreover disposed between the first longitudinal wall 54 and the annular sheet 42 forming the device sealing 42 so as to divide the lower zone 40a into a zone 58 said assembly and a so-called injection area 60.
- the mounting area 58 is itself divided into a plurality of annular cavities 62 by radial partitions 64. These partitions radials are arranged perpendicular to the first 50 and second 52 radial walls of the injection part of the upstream flange and extend between the first and second longitudinal walls 54, 56. They are regularly spaced around the longitudinal axis X-X of the turbines.
- the mounting area 58 is segmented into a plurality of cavities annular 62, while the injection zone 60 is continuous all around of the longitudinal axis X-X.
- the first longitudinal wall 54 of the injection part of the upstream flange has a plurality of openings 66 intended to put in communication the upper zone 40b with the lower zone 40a so supply cooling air to the latter.
- these openings 66 open in the upper zone 40b and open into certain annular cavities 62a formed in the mounting zone 58.
- the openings are arranged in such a way that the upper zone supplies air with cooling only one out of two annular cavities 62, and two openings opening into the same annular cavity are provided.
- the second longitudinal wall annular 56 has at least one passage 68 allowing the air to cooling to pass from the annular cavity 62a to the injection zone 60. Furthermore, the openings 66 are arranged in the first wall longitudinal 54 so as to be axially aligned with the air openings 44 made in the lower platform 28 ( Figure 1). So the losses load at the level of the supply of each annular cavity 62a are limited.
- the injection zone 60 opens towards the disc 14 of the blades mobile 12 of the high-pressure turbine and towards the disc 22 of the blades rotary 20 of the low-pressure turbine via a plurality holes 70 made in the first and second radial walls 50, 52 of the injection part of the upstream flange.
- these holes 70 can be inclined holes (as in the figures) or straight. All another system for calibrating a desired flow rate to cool the High and low pressure turbine discs may also be suitable.
- the air evacuated through the orifices 44 of the lower platform 28 supplies the upper zone 40b then certain annular cavities 62a by through openings 66.
- the air then diffuses into the area injection 60 via passages 68 before being evacuated by the holes 70 for cooling the disc 14 of the moving blades of the turbine high pressure and the disc 22 of the rotary blades of the low pressure turbine.
- a cavity annular 62 on two is supplied with cooling air by the openings (the cavities 62a).
- the annular cavities 62b which are not supplied with air are intended to allow the attachment of the downstream flange to the upstream flange.
- the second radial wall 52 of the part injection of the upstream flange present, at least at some of these non-powered cavities 62b, holes 72 intended to be crossed by bolted connections of screw / nut type.
- the first wall radial 50 of the injection part includes lights 74, for example circular, arranged opposite these holes. These lights thus facilitate access to bolted connections during assembling the upstream and downstream flanges and "drowning" the nut of these connections so as not to create turbulence.
- connecting tubes 76 can be disposed in each of the openings 66 in order to guide the air from cooling towards the annular cavities 62a.
- the downstream flange 34 has, at an opposite lower end at its connecting part, a part for holding the upstream flange which is formed by an annular wall 80 extending radially and which is offset from the radial wall 48 of its connecting part, both radially towards the longitudinal axis X-X and longitudinally upstream.
- This radial annular wall 80 is arranged so as to come to bear against the second radial wall 52 of the injection part of the flange upstream. It is also centered with clamping on the upstream flange to perfect the sealing of the cooling device.
- An annular wall longitudinal 81 connects a lower end of the radial wall 48 of the connecting part at an upper end of the radial wall 80 of the holding part.
- the radial wall 80 of the holding part has a plurality of holes 82 intended to be crossed by the links bolted. These holes 82 are arranged all around the axis longitudinal X-X so as to coincide with the holes 72 in the flange upstream when the upstream and downstream flanges are assembled one against the other the other.
- the upstream 32 and downstream 34 flanges can thus be maintained in support one against the other, after the assembly of the lower platform 28, via bolted connections 83.
- This arrangement particular of the holding means makes it possible to obtain an assembly slightly prestressed from the lower platform 28 on the flanges upstream 32 and downstream 34 in order to improve the dynamic behavior of the cooling device while limiting movement relative longitudinal and ensuring good sealing of the areas lower and upper.
- the wall radial 80 of the holding part of the downstream flange comprises radial retention devices for these tubes.
- Such devices retention can for example be brackets 84 fixed against the wall radial 80 and whose dimensions are adapted to be accommodated in the annular windows 78 of the second radial wall 52 of the part injection of the upstream flange.
- the cooling device 30 thus formed comprises an annular flange additional 85 which extends radially between the sealing device 42 and a flange 86 of the disc 14 of the moving blades of the high-pressure turbine with whom he is in contact.
- This additional flange 85 thus makes it possible to define a high-pressure enclosure 87 and an enclosure low pressure 88 on either side of the cooling device 30.
- the contact between the flange 86 of the disc 14 and the lower end of the additional flange 85 is effected by through sealing means.
- the annular flange additional 85 has a substantially triangular cross section.
- stiffening elements 91 can be arranged between the upper and lower ends of the additional flange. As shown in Figures 3 and 6, such stiffening elements can by example take the form of sheets fixed on the upper ends and bottom of the additional flange 85.
- the cooling device 30 can also include a device anti-rotation of the assembly of the upstream 32 and downstream 34 flanges.
- anti-rotation device can be formed from a plurality of radial pins 92 arranged on the downstream flange 34, in the extension of the wall radial annular 80 of its holding part. As illustrated in the figure 1, these pins 92 thus come into abutment in notches 93 of the platform dispenser 28 to prevent rotation untimely cooling device.
- the pins can be formed on the upstream flange 32, for example at the level of the first longitudinal wall 54 of its injection part. In this case no shown in the figures, the pins also come into abutment in notches on the lower platform.
- the upstream and downstream flanges of the cooling device can be made in one and the same piece so as to constitute a single flange.
- a flange must also be fitted at the level of the wall radial of the connecting part of the upstream flange to allow the use specific tools to remove the prestress during mounting of the lower platform on the mono-flange.
- Such a mono-flange variant allows to remove bolted connections which decreases the mass of the assembly and the time of its assembly.
- the cooling device thus defined has many advantages. It allows in particular to reduce losses of charge which reduces the specific consumption of the turbine engine. This reduction in pressure drops does not lead to as much a degradation of the aerodynamic behavior of the device. Moreover, such a device is perfectly suitable for a low-pressure turbine distributor having a swan neck configuration. We will also note that, the number of flanges being reduced compared to the devices the mass of the cooling device according to the invention is therefore reduced and its assembly facilitated.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
- la figure 1 est une vue en coupe longitudinale et partielle d'un dispositif de refroidissement selon l'invention ;
- les figure 2 et 3 sont des vues selon deux perspectives différentes du dispositif de refroidissement de la figure 1 ;
- les figures 4 et 5 sont des vues en sections respectives selon IV-IV et V-V de la figure 3 ;
- la figure 6 est une vue en perspective et partielle du dispositif de refroidissement de la figure 1 illustrant son montage ; et
- la figure 7 est en coupe longitudinale et partielle d'un dispositif de refroidissement connu de l'art antérieur.
Claims (15)
- Dispositif de refroidissement (30) de disques (14, 22) de turbines (10, 16) haute-pression et basse-pression de turbomachine, ledit dispositif étant alimenté en air de refroidissement depuis au moins un orifice d'air (44) pratiqué au travers d'une plate-forme annulaire inférieure (28) de support d'au moins une aube fixe (24) de ladite turbine basse-pression et disposé entre une bride amont (36) et une bride aval (38) de ladite plate-forme inférieure, caractérisé en ce qu'il comporte :un flasque annulaire amont (32) s'étendant radialement depuis la bride amont (36) de ladite plate-forme inférieure ;un flasque annulaire aval (34) s'étendant radialement depuis la bride aval (38) de la plate-forme inférieure, lesdits flasques amont et aval délimitant longitudinalement au moins une cavité annulaire d'air de refroidissement (40) ;un dispositif d'étanchéité (42) s'étendant longitudinalement entre lesdits flasques amont et aval de façon à obturer de manière étanche la cavité d'air de refroidissement (40) ;des moyens de maintien (83) desdits flasques amont et aval contre les brides amont et aval de ladite plate-forme inférieure ; etune pluralité de perçages (70) afin d'injecter de l'air de refroidissement vers les disques (14, 22) de turbines.
- Dispositif selon la revendication 1, caractérisé en ce que le flasque amont (32) comporte une partie de liaison avec la plate-forme inférieure (28) formée d'une paroi annulaire sensiblement radiale (46), et une partie d'injection formée d'une première paroi annulaire sensiblement radiale (50) décalée radialement et longitudinalement vers l'aval par rapport à ladite partie de liaison, d'une seconde paroi annulaire sensiblement radiale (52) décalée longitudinalement vers l'aval par rapport à ladite première paroi radiale, et d'une première paroi annulaire sensiblement longitudinale (54) s'étendant entre la paroi radiale (46) de ladite partie de liaison et la seconde paroi radiale (52) de ladite partie d'injection de façon à diviser longitudinalement la cavité d'air de refroidissement (40) en une zone inférieure (40a) et zone supérieure (40b).
- Dispositif selon la revendication 2, caractérisé en ce que la partie d'injection du flasque amont (32) comporte en outre une seconde paroi annulaire sensiblement longitudinale (56) s'étendant entre les première et seconde parois radiales (50, 52) et disposée entre la première paroi longitudinale (54) et le dispositif d'étanchéité (42) de façon à diviser la zone inférieure (40a) en une zone de montage (58) et une zone d'injection (60).
- Dispositif selon la revendication 3, caractérisé en ce que la partie d'injection du flasque amont (32) comporte en outre une pluralité de cloisons sensiblement radiales (64) s'étendant entre les première et seconde parois longitudinales (54, 56) et disposées perpendiculairement aux première et seconde parois radiales (50, 52) de façon à diviser la zone de montage (58) en une pluralité de cavités annulaires (62).
- Dispositif selon la revendication 4, caractérisé en ce que la première paroi longitudinale (54) de ladite partie d'injection du flasque amont (32) comporte des ouvertures (66) de communication entre les zones inférieure (40a) et supérieure (40b) de façon à alimenter en air de refroidissement au moins une cavité annulaire (62a), lesdites ouvertures de communication étant axialement alignées avec ledit orifice d'air (44) pratiqué au travers de la plate-forme inférieure (28).
- Dispositif selon la revendication 5, caractérisé en ce que ladite au moins une cavité annulaire (62a) alimentée en air de refroidissement comporte, au niveau de la seconde paroi longitudinale (56), au moins un passage (68) afin d'alimenter la zone d'injection (60) en air de refroidissement.
- Dispositif selon la revendication 6, caractérisé en ce que la zone d'injection (60) présente une pluralité de perçages (70) pratiqués dans les première et seconde parois radiales (50, 52) de la partie d'injection du flasque amont (32) afin d'injecter l'air de refroidissement vers les disques (14, 22) de turbines.
- Dispositif selon l'une quelconque des revendications 5 à 7, caractérisé en ce qu'il comporte en outre des tubes de liaison (76) disposés dans chaque ouverture de communication (60) afin de guider l'air de refroidissement vers ladite au moins une cavité annulaire (62a).
- Dispositif selon la revendication 8, caractérisé en ce qu'il comporte en outre des dispositifs de rétention radiale (84) de chacun desdits tubes de liaison (76).
- Dispositif selon l'une des revendications 8 et 9, caractérisé en ce que la seconde paroi radiale (52) de la partie d'injection du flasque amont (32) comporte une pluralité de fenêtres annulaires (78) pour le montage desdits tubes de liaison (76).
- Dispositif selon l'une quelconque des revendications 2 à 10, caractérisé en ce que le flasque aval (34) comporte une partie de liaison avec la plate-forme inférieure (28) formée d'une paroi annulaire sensiblement radiale (48), et une partie de maintien du flasque amont formée d'une paroi annulaire sensiblement radiale (80) décalée radialement et longitudinalement vers l'amont par rapport à ladite partie de liaison et disposée contre la seconde paroi radiale (52) de la partie d'injection du flasque amont (32), et d'une paroi annulaire sensiblement longitudinale (81) s'étendant entre la paroi radiale (48) de ladite partie de liaison et la paroi radiale (80) de ladite partie de maintien.
- Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'il comporte en outre un flasque annulaire supplémentaire (85) s'étendant radialement entre le dispositif d'étanchéité (42) et une bride (86) du disque (14) d'aubes mobiles (12) de la turbine haute-pression (10) de façon à définir une enceinte haute-pression (87) et une enceinte basse-pression (88) de part et d'autre dudit dispositif de refroidissement.
- Dispositif selon la revendication 12, caractérisé en ce qu'il comporte en outre éléments raidisseurs (91) disposés entre des extrémités dudit flasque annulaire supplémentaire (85) afin d'améliorer le comportement dynamique du dispositif de refroidissement.
- Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce qu'il comporte en outre un dispositif d'anti-rotation (92) desdits flasques amont (32) et aval (34).
- Dispositif selon l'une quelconque des revendications 1 à 14, caractérisé en ce que lesdits flasques amont et aval sont réalisés en une seule et même pièce.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0301842A FR2851288B1 (fr) | 2003-02-14 | 2003-02-14 | Dispositif de refroidissement de disques de turbines |
| FR0301842 | 2003-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1450005A1 true EP1450005A1 (fr) | 2004-08-25 |
| EP1450005B1 EP1450005B1 (fr) | 2007-04-25 |
Family
ID=32732001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04290324A Expired - Lifetime EP1450005B1 (fr) | 2003-02-14 | 2004-02-09 | Dispositif de refroidissement de disques de turbines |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7025562B2 (fr) |
| EP (1) | EP1450005B1 (fr) |
| JP (1) | JP4578117B2 (fr) |
| CA (1) | CA2456700C (fr) |
| DE (1) | DE602004006035T2 (fr) |
| ES (1) | ES2283955T3 (fr) |
| FR (1) | FR2851288B1 (fr) |
| RU (1) | RU2341669C2 (fr) |
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| FR2995021A1 (fr) * | 2012-09-04 | 2014-03-07 | Snecma | Dispositif d'alimentation en air pour turbines de moteurs d'aeronefs |
| WO2016097632A1 (fr) * | 2014-12-17 | 2016-06-23 | Snecma | Ensemble de turbine de turbomachine d'aéronef |
| EP3150798A1 (fr) * | 2015-10-02 | 2017-04-05 | Doosan Heavy Industries & Construction Co., Ltd. | Disque de turbine à gaz |
| FR3087839A1 (fr) * | 2018-10-30 | 2020-05-01 | Safran Aircraft Engines | Turbine |
| FR3115562A1 (fr) * | 2020-10-26 | 2022-04-29 | Safran Aircraft Engines | Injecteur d’air de refroidissement pour turbine de turbomachine |
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| IL181439A0 (en) * | 2007-02-20 | 2007-07-04 | Medic Nrg Ltd | An endodontic file member |
| US8206080B2 (en) * | 2008-06-12 | 2012-06-26 | Honeywell International Inc. | Gas turbine engine with improved thermal isolation |
| US9447694B2 (en) * | 2012-01-30 | 2016-09-20 | United Technologies Corporation | Internal manifold for turning mid-turbine frame flow distribution |
| US11021962B2 (en) * | 2018-08-22 | 2021-06-01 | Raytheon Technologies Corporation | Turbulent air reducer for a gas turbine engine |
| US12215606B2 (en) | 2022-05-27 | 2025-02-04 | Rtx Corporation | Turbine engine with TOBI supporting vanes |
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| FR1351268A (fr) * | 1963-03-20 | 1964-01-31 | Rolls Royce | Moteur à turbine à gaz comportant un aubage de turbine refroidi |
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| US6179555B1 (en) * | 1998-10-06 | 2001-01-30 | Pratt & Whitney Canada Corp. | Sealing of T.O.B.I feed plenum |
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- 2004-02-09 DE DE602004006035T patent/DE602004006035T2/de not_active Expired - Lifetime
- 2004-02-09 EP EP04290324A patent/EP1450005B1/fr not_active Expired - Lifetime
- 2004-02-11 CA CA2456700A patent/CA2456700C/fr not_active Expired - Lifetime
- 2004-02-13 US US10/777,663 patent/US7025562B2/en not_active Expired - Lifetime
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| US2912221A (en) * | 1953-11-20 | 1959-11-10 | Napier & Son Ltd | Apparatus for cooling turbine wheels in combustion turbines |
| FR1351268A (fr) * | 1963-03-20 | 1964-01-31 | Rolls Royce | Moteur à turbine à gaz comportant un aubage de turbine refroidi |
| US4217755A (en) * | 1978-12-04 | 1980-08-19 | General Motors Corporation | Cooling air control valve |
| US4805398A (en) * | 1986-10-01 | 1989-02-21 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S. N. E. C. M. A." | Turbo-machine with device for automatically controlling the rate of flow of turbine ventilation air |
| US5503528A (en) * | 1993-12-27 | 1996-04-02 | Solar Turbines Incorporated | Rim seal for turbine wheel |
| US6179555B1 (en) * | 1998-10-06 | 2001-01-30 | Pratt & Whitney Canada Corp. | Sealing of T.O.B.I feed plenum |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2098686A2 (fr) | 2008-03-04 | 2009-09-09 | Hitachi Ltd. | Turbine à gaz à deux arbres |
| EP2098686A3 (fr) * | 2008-03-04 | 2013-07-03 | Hitachi Ltd. | Turbine à gaz à deux arbres |
| GB2520212B (en) * | 2012-09-04 | 2017-06-28 | Snecma | Air supply device for aircraft engine turbines |
| FR2995021A1 (fr) * | 2012-09-04 | 2014-03-07 | Snecma | Dispositif d'alimentation en air pour turbines de moteurs d'aeronefs |
| GB2520212A (en) * | 2012-09-04 | 2015-05-13 | Snecma | Air supply device for aircraft engine turbines |
| US9920690B2 (en) | 2012-09-04 | 2018-03-20 | Snecma | Air supply device for aircraft engine turbines |
| WO2014037664A1 (fr) * | 2012-09-04 | 2014-03-13 | Snecma | Dispositif d'alimentation en air pour turbines de moteurs d'aeronefs |
| CN107109956A (zh) * | 2014-12-17 | 2017-08-29 | 赛峰飞机发动机公司 | 航空器涡轮发动机的涡轮组件 |
| FR3030614A1 (fr) * | 2014-12-17 | 2016-06-24 | Snecma | Ensemble de turbine haute pression de turbomachine |
| WO2016097632A1 (fr) * | 2014-12-17 | 2016-06-23 | Snecma | Ensemble de turbine de turbomachine d'aéronef |
| CN107109956B (zh) * | 2014-12-17 | 2019-04-12 | 赛峰飞机发动机公司 | 航空器涡轮发动机的涡轮组件 |
| US10280776B2 (en) | 2014-12-17 | 2019-05-07 | Safran Aircraft Engines | Turbine assembly of an aircraft turbine engine |
| RU2705319C2 (ru) * | 2014-12-17 | 2019-11-06 | Сафран Эркрафт Энджинз | Узел турбины газотурбинного двигателя летательного аппарата |
| EP3150798A1 (fr) * | 2015-10-02 | 2017-04-05 | Doosan Heavy Industries & Construction Co., Ltd. | Disque de turbine à gaz |
| US10605085B2 (en) | 2015-10-02 | 2020-03-31 | DOOSAN Heavy Industries Construction Co., LTD | Gas turbine disk |
| FR3087839A1 (fr) * | 2018-10-30 | 2020-05-01 | Safran Aircraft Engines | Turbine |
| FR3115562A1 (fr) * | 2020-10-26 | 2022-04-29 | Safran Aircraft Engines | Injecteur d’air de refroidissement pour turbine de turbomachine |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2341669C2 (ru) | 2008-12-20 |
| CA2456700C (fr) | 2011-09-27 |
| DE602004006035D1 (de) | 2007-06-06 |
| CA2456700A1 (fr) | 2004-08-14 |
| RU2004104120A (ru) | 2005-07-27 |
| DE602004006035T2 (de) | 2008-01-03 |
| US7025562B2 (en) | 2006-04-11 |
| EP1450005B1 (fr) | 2007-04-25 |
| ES2283955T3 (es) | 2007-11-01 |
| JP4578117B2 (ja) | 2010-11-10 |
| FR2851288B1 (fr) | 2006-07-28 |
| JP2004245224A (ja) | 2004-09-02 |
| FR2851288A1 (fr) | 2004-08-20 |
| US20040161334A1 (en) | 2004-08-19 |
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