EP1099826B1 - Positioning device for a turbine liner - Google Patents

Positioning device for a turbine liner Download PDF

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Publication number
EP1099826B1
EP1099826B1 EP00403105A EP00403105A EP1099826B1 EP 1099826 B1 EP1099826 B1 EP 1099826B1 EP 00403105 A EP00403105 A EP 00403105A EP 00403105 A EP00403105 A EP 00403105A EP 1099826 B1 EP1099826 B1 EP 1099826B1
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EP
European Patent Office
Prior art keywords
spacer
ring
mortise
tenon
hook
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00403105A
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German (de)
French (fr)
Other versions
EP1099826A1 (en
Inventor
Jean-Baptiste Arilla
Sylvie Coulon
Pierre Debeneix
Florence Irène Noelle Leutard
Paul Rodrigues
Patrice Jean Marc Rosset
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA Moteurs SA
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Publication date
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Publication of EP1099826A1 publication Critical patent/EP1099826A1/en
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Publication of EP1099826B1 publication Critical patent/EP1099826B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • 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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/246—Fastening of diaphragms or stator-rings

Definitions

  • This invention is an assembly particular between a turbine ring, having for function of bordering the turbine delineating the vein of gas flow, and a part called spacer which belongs to the structure of the turbine.
  • a modern assembly is described in the patent American 5,197,853 and illustrated in Figure 4.
  • a body turbine 1 carries a spacer 2 which carries itself a ring 3.
  • the connecting pieces of ring 3 to the spacer 2 comprise, on the upstream side, a hook of spacer 4 and a ring hook 5 which are nested one inside the other: the assembly of the ring 3 is produced by pressing the end of the hook 5 in the hollow of the spacer hook 4, then by rotating the ring 3 to approach his opposite end, downstream from that of the spacer 2; the other 6 assembly parts are located on these downstream ends.
  • the tenon presents two flanges 10 and 11, radially directed towards inside and that come up against the bottom of the mortise 9.
  • Clips 12 are then fixed over the parallel ends of the flanges 7 and 8, so that its branches 13 and 14 enclose them and prevent them from disjoining themselves.
  • the disjunction between the spacer 2 and the ring 3 is also prohibited by nesting hooks 4 and 5 on the other side; the ring 3 can play slightly in the axial direction on the spacer 2, inside a race whose length is defined by the total clearance between the flanks flanges 10 and 11 and the flanks of the mortise 9, at the places marked with references 15 and 16.
  • This axial clearance creates an air leak downstream of the system. It is therefore important to reduce it as much as possible.
  • the minimum value must be respected to preserve the rocking assembly of the ring.
  • the ring 3 For make a good seal on the downstream hook, the ring 3 must be plated: its facing side must press on the collar 10. For this, the collar 10 is locally deformed in axial direction to cause this tightening. So, this punctual clamping system allows both to ensure the axial clearance necessary for the rocker and a seal by support.
  • the invention relates to an assembly perfected between a turbine ring and its spacer, in which the principles of this prior assembly (fixation in radial direction by nested hooks on one side, and by abutment faces of flanges on the other side; and limitation of axial movement by a tenon system mortise on this other side), but which is superior in regarding the cohesion of the adjustment, the spacer protection against overheating excessive and mechanical strength.
  • the tenon now belongs to the ring, and the mortise to the spacer, and that the tenon and mortise are separated from the abutment faces on the edges of the spacer and the ring, and placed behind the portions of these ledges that carry the stop faces.
  • the spacer 2 is usually made of a material easier to machine, which allows to easily create the mortise, for example in forming a tongue, which helps to surround the mortise in connection with an adjoining part of the spacer.
  • the tongue can be sufficiently flexible to be deformed and lock the tenon in good conditions and perform axial clamping for get a flat seal.
  • the tenon and the mortise thus offer a resistance to gas leaks between the chamber inside and the circulation vein. It then becomes possible in good conditions to dissociate spacer and ring flanges on the essentials of their length and keep only a small area stop, instead of the two flanges 10 and 11 spaced from the previous conception: heat transfers from ring 3 to spacer 2 are then smaller.
  • the staples that hold the flanges tight can see their soul lodged in nicks of these edges, which does not affect the watertightness of assembly since the edges would have been separated at the place of the cuts; but pushing the souls of staples to the cuts, it prevents them from protruding outside the edges and thus reduces the congestion of the whole; moreover, the staples now serve to limit slippage angular rings on the spacers, butting against the side faces of the cuts. So we can remove the pawns from the previous achievement and their holes which were the seat of concentrations significant constraints.
  • the cuts are also responsible for stress concentrations but who are less important because of their size and of their more regular form.
  • the hook of the ring 3 can cover the spacer hook, contrary to the design earlier, which again has the advantage of locally protect the spacer from overheating produced by the vein.
  • the spacer and the ring whose general shape of each remains similar to that of the realization known, here bear the respective references 102 and 103. They are conventionally formed of abutting segments along a circumference, and segments of the ring 103 have discarded 30 disc seals between segments to limit gas flow in the radial and axial directions. Room inner 31 similar to the chamber 17 is delimited by the spacer 102 and the ring 103.
  • the spacer 102 On the upstream side, the spacer 102 carries a hook 32 whose rod 33, extending radially inwards, gives on the chamber 31 and whose end 34 extends upstream; the hook 35 of the ring 103 extends outside the previous and covers it, with a stem 36 coming in front its end 34 and a tip 37 coming in front of the rod 33; the hooks are thus reversed in relation to the anterior design, but their assembly by nesting remains the same.
  • the spacer 102 and the ring 103 are provided with flanges 38 and 39 which extend parallel to the downstream like the edges 7 and 8 of the design previous, but here the flange 38 of the spacer 102 includes only a flange 40 which establishes the stop with the rim 39; the flanges 38 and 39 are separated over most of their length of a game 57.
  • the tightening of the ring 103 on the spacer 102 in axial direction is due to a stud 41 established on the ring 103 and located behind the rim 38 of the spacer 102, on the side of the chamber 31; this tenon is retained in a mortise 42 delimited by the rim 38 and especially by a bent tab 43, built on the back side of this rim 38.
  • the last 44 of the tongue 43 is flexible, which allows the fold when editing is done, to remove the play in the axial direction of the tenon 41 between the flange 38 and the tongue 43; the low rigidity of the tip 44 allows to introduce only moderate constraints, which are not likely to become excessive during functioning, when dilations and vibrations difficult to evaluate affected the assembly.
  • a seal 55 may be inserted into a throat 56 dug into one of the flanges 39, at the location stop faces, to complete the seal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Gasket Seals (AREA)

Description

Cette invention ressortit à un assemblage particulier entre un anneau de turbine, ayant pour fonction de border la turbine en délimitant la veine d'écoulement des gaz, et une pièce appelée entretoise qui appartient à la structure de la turbine.This invention is an assembly particular between a turbine ring, having for function of bordering the turbine delineating the vein of gas flow, and a part called spacer which belongs to the structure of the turbine.

Un assemblage moderne est décrit dans le brevet américain 5,197,853 et illustré à la figure 4. Un corps de turbine 1 porte une entretoise 2 qui porte elle-même un anneau 3. Les pièces d'assemblage de l'anneau 3 à l'entretoise 2 comprennent, du côté amont, un crochet d'entretoise 4 et un crochet d'anneau 5 qui sont imbriqués l'un dans l'autre : le montage de l'anneau 3 est produit en enfonçant l'extrémité du crochet d'anneau 5 dans le creux du crochet d'entretoise 4, puis en faisant pivoter l'anneau 3 pour approcher son extrémité opposée, située en aval, de celle de l'entretoise 2 ; les autres pièces 6 d'assemblage sont situées sur ces extrémités aval.A modern assembly is described in the patent American 5,197,853 and illustrated in Figure 4. A body turbine 1 carries a spacer 2 which carries itself a ring 3. The connecting pieces of ring 3 to the spacer 2 comprise, on the upstream side, a hook of spacer 4 and a ring hook 5 which are nested one inside the other: the assembly of the ring 3 is produced by pressing the end of the hook 5 in the hollow of the spacer hook 4, then by rotating the ring 3 to approach his opposite end, downstream from that of the spacer 2; the other 6 assembly parts are located on these downstream ends.

Il s'agit d'un rebord d'entretoise 7 dirigé d'abord radialement vers l'intérieur, puis vers l'aval, et d'un rebord d'anneau 8 dirigé radialement vers l'extérieur puis axialement vers l'aval ; le rebord d'anneau 8 est façonné en une mortaise 9 dans laquelle se loge une partie du rebord d'entretoise 7, qui joue ainsi le rôle de tenon. Le tenon présente deux collerettes 10 et 11, dirigées radialement vers l'intérieur et qui viennent buter contre le fond de la mortaise 9. Des agrafes 12 sont ensuite fixées par-dessus les extrémités parallèles des rebords 7 et 8, de manière que ses branches 13 et 14 les enserrent et les empêchent de se disjoindre. La disjonction entre l'entretoise 2 et l'anneau 3 est également interdite par l'imbrication des crochets 4 et 5 de l'autre côté ; l'anneau 3 peut jouer légèrement en direction axiale sur l'entretoise 2, à l'intérieur d'une course dont la longueur est définie par le jeu total entre les flancs des collerettes 10 et 11 et les flancs de la mortaise 9, aux endroits notés par les références 15 et 16.This is a spacer flange 7 headed first radially inwards, then downstream, and a ring flange 8 directed radially towards outside then axially downstream; the flange 8 is formed into a mortise 9 in which is lodged part of the spacer flange 7, which plays thus the role of tenon. The tenon presents two flanges 10 and 11, radially directed towards inside and that come up against the bottom of the mortise 9. Clips 12 are then fixed over the parallel ends of the flanges 7 and 8, so that its branches 13 and 14 enclose them and prevent them from disjoining themselves. The disjunction between the spacer 2 and the ring 3 is also prohibited by nesting hooks 4 and 5 on the other side; the ring 3 can play slightly in the axial direction on the spacer 2, inside a race whose length is defined by the total clearance between the flanks flanges 10 and 11 and the flanks of the mortise 9, at the places marked with references 15 and 16.

Ce jeu axial crée une fuite d'air à l'aval du système. Il importe donc de le réduire au mieux. Une valeur minimale doit cependant être respectée de façon à préserver le montage en bascule de l'anneau. Pour effectuer une bonne étanchéité sur le crochet aval, l'anneau 3 doit être plaqué : sa face en regard doit appuyer sur la collerette 10. Pour cela, la collerette 10 est déformée localement en sens axial pour provoquer ce serrage. Ainsi, ce système de serrage ponctuel permet à la fois d'assurer le jeu axial nécessaire à la bascule et une étanchéité par appui.This axial clearance creates an air leak downstream of the system. It is therefore important to reduce it as much as possible. A However, the minimum value must be respected to preserve the rocking assembly of the ring. For make a good seal on the downstream hook, the ring 3 must be plated: its facing side must press on the collar 10. For this, the collar 10 is locally deformed in axial direction to cause this tightening. So, this punctual clamping system allows both to ensure the axial clearance necessary for the rocker and a seal by support.

L'invention est relative à un assemblage perfectionné entre un anneau de turbine et son entretoise, dans lequel on reprend sensiblement les principes de cet assemblage antérieur (fixation en direction radiale par des crochets imbriqués d'un côté, et par des faces de butée de rebords d'un autre côté ; et limitation du mouvement axial par un système à tenon mortaise de cet autre côté), mais qui soit supérieur en ce qui concerne la cohésion de l'ajustement, la protection de l'entretoise contre les échauffements excessifs et la résistance mécanique.The invention relates to an assembly perfected between a turbine ring and its spacer, in which the principles of this prior assembly (fixation in radial direction by nested hooks on one side, and by abutment faces of flanges on the other side; and limitation of axial movement by a tenon system mortise on this other side), but which is superior in regarding the cohesion of the adjustment, the spacer protection against overheating excessive and mechanical strength.

Il comprend divers perfectionnements, dont le plus notable est peut-être que le tenon appartient désormais à l'anneau, et la mortaise à l'entretoise, et que le tenon et la mortaise sont séparés des faces de butée sur les rebords de l'entretoise et de l'anneau, et placés derrière les portions de ces rebords qui portent les faces de butée.It includes various improvements, the most noteworthy is perhaps the tenon now belongs to the ring, and the mortise to the spacer, and that the tenon and mortise are separated from the abutment faces on the edges of the spacer and the ring, and placed behind the portions of these ledges that carry the stop faces.

On obtient donc l'avantage que le tenon et la mortaise donnent sur la chambre intérieure, référencée par 17 dans la figure 4, et sont ainsi moins exposés aux échauffements et aux dilatations. La présence du tenon sur l'anneau est également avantageuse en elle-même, puisque l'anneau est généralement en un matériau monocristallin qu'il est assez difficile d'usiner ; on constate qu'il est moins difficile d'y créer un tenon que la mortaise 9. L'entretoise 2 est généralement construite en un matériau plus facile à usiner, ce qui permet d'y créer facilement la mortaise, par exemple en y façonnant une languette, qui contribue à entourer la mortaise en liaison avec une partie attenante de l'entretoise. La languette peut être suffisamment flexible pour être déformée et bloquer le tenon dans de bonnes conditions et effectuer un serrage axial pour obtenir une étanchéité plane.So we get the advantage that the tenon and the Mortise give on the inner chamber, referenced by 17 in Figure 4, and are thus less exposed warm-ups and dilations. The presence of tenon on the ring is also advantageous in itself, since the ring is usually made of a material monocrystalline it is quite difficult to machine; we notes that it is less difficult to create a tenon than the mortise 9. The spacer 2 is usually made of a material easier to machine, which allows to easily create the mortise, for example in forming a tongue, which helps to surround the mortise in connection with an adjoining part of the spacer. The tongue can be sufficiently flexible to be deformed and lock the tenon in good conditions and perform axial clamping for get a flat seal.

Le tenon et la mortaise offrent ainsi une résistance aux fuites de gaz entre la chambre intérieure et la veine de circulation. Il devient alors possible dans de bonnes conditions de désolidariser les rebords d'entretoise et d'anneau sur l'essentiel de leur longueur et de ne conserver qu'une petite surface de butée, au lieu des deux collerettes 10 et 11 espacées de la conception antérieure : les transmissions de chaleur de l'anneau 3 à l'entretoise 2 sont alors plus réduites.The tenon and the mortise thus offer a resistance to gas leaks between the chamber inside and the circulation vein. It then becomes possible in good conditions to dissociate spacer and ring flanges on the essentials of their length and keep only a small area stop, instead of the two flanges 10 and 11 spaced from the previous conception: heat transfers from ring 3 to spacer 2 are then smaller.

Un autre perfectionnement devient alors possible : les agrafes qui maintiennent le serrage des rebords peuvent voir leur âme logée dans des entailles de ces rebords, ce qui n'affecte point l'étanchéité de l'assemblage puisque les rebords auraient été séparés à l'endroit des entailles ; mais en poussant les âmes des agrafes vers les entailles, on évite qu'elles saillent à l'extérieur des rebords et on réduit ainsi l'encombrement de l'ensemble ; de plus, les agrafes servent désormais à limiter le mouvement de glissement angulaire des anneaux sur les entretoises, en butant contre les faces latérales des entailles. On peut donc supprimer les pions de la réalisation antérieure et leurs perçages qui étaient le siège de concentrations de contraintes importantes. Les entailles sont aussi responsables de concentrations de contraintes, mais qui sont moins importantes à cause de leurs dimensions et de leur forme plus régulière.Another improvement then becomes possible: the staples that hold the flanges tight can see their soul lodged in nicks of these edges, which does not affect the watertightness of assembly since the edges would have been separated at the place of the cuts; but pushing the souls of staples to the cuts, it prevents them from protruding outside the edges and thus reduces the congestion of the whole; moreover, the staples now serve to limit slippage angular rings on the spacers, butting against the side faces of the cuts. So we can remove the pawns from the previous achievement and their holes which were the seat of concentrations significant constraints. The cuts are also responsible for stress concentrations but who are less important because of their size and of their more regular form.

Il n'est pas jusqu'au côté opposé, porteur des crochets, qui ne puisse être perfectionné selon l'invention : le crochet de l'anneau 3 peut couvrir le crochet d'entretoise, contrairement à la conception antérieure, ce qui présente encore ici l'avantage de protéger localement l'entretoise des échauffements produits par la veine. It is not up to the opposite side, carrier of hooks, which can not be perfected according to the invention: the hook of the ring 3 can cover the spacer hook, contrary to the design earlier, which again has the advantage of locally protect the spacer from overheating produced by the vein.

L'invention va maintenant être décrite en détail à l'aide des figures suivantes qui représentent une réalisation préférée :

  • la figure 1 est une vue générale de l'invention,
  • la figure 2 est un détail de la figure 1,
  • la figure 3 est une vue en perspective des pièces de la figure 2,
  • et la figure 4, déjà décrite, illustre l'art antérieur.
The invention will now be described in detail with the help of the following figures which represent a preferred embodiment:
  • FIG. 1 is a general view of the invention,
  • FIG. 2 is a detail of FIG.
  • FIG. 3 is a perspective view of the parts of FIG. 2,
  • and Figure 4, already described, illustrates the prior art.

La figure 1 est abordée maintenant.Figure 1 is discussed now.

L'entretoise et l'anneau, dont la forme générale de chacun reste semblable à celle de la réalisation connue, portent ici les références respectives 102 et 103. Ils sont classiquement formés de segments aboutés le long d'une circonférence, et les segments de l'anneau 103 portent des joints en lamelle 30 jetés entre les segments pour limiter les circulations de gaz dans les directions radiale et axiale. Une chambre intérieure 31 analogue à la chambre 17 est délimitée par l'entretoise 102 et l'anneau 103. Du côté amont, l'entretoise 102 porte un crochet 32 dont la tige 33, s'allongeant radialement vers l'intérieur, donne sur la chambre 31 et dont le bout 34 s'étend vers l'amont ; le crochet 35 de l'anneau 103 s'étend à l'extérieur du précédent et le couvre, avec une tige 36 venant devant son bout 34 et un bout 37 venant devant la tige 33 ; les crochets sont ainsi inversés par rapport à la conception antérieure, mais leur assemblage par imbrication reste identique. The spacer and the ring, whose general shape of each remains similar to that of the realization known, here bear the respective references 102 and 103. They are conventionally formed of abutting segments along a circumference, and segments of the ring 103 have discarded 30 disc seals between segments to limit gas flow in the radial and axial directions. Room inner 31 similar to the chamber 17 is delimited by the spacer 102 and the ring 103. On the upstream side, the spacer 102 carries a hook 32 whose rod 33, extending radially inwards, gives on the chamber 31 and whose end 34 extends upstream; the hook 35 of the ring 103 extends outside the previous and covers it, with a stem 36 coming in front its end 34 and a tip 37 coming in front of the rod 33; the hooks are thus reversed in relation to the anterior design, but their assembly by nesting remains the same.

On se reporte maintenant au côté aval de l'assemblage et principalement aux figures 2 et 3 ; l'entretoise 102 et l'anneau 103 sont pourvus de rebords 38 et 39 qui s'étendent parallèlement vers l'aval comme les rebords 7 et 8 de la conception antérieure, mais ici le rebord 38 de l'entretoise 102 ne comprend qu'une collerette 40 qui établit la butée avec le rebord 39 ; les rebords 38 et 39 sont séparés sur la plus grande partie de leur longueur d'un jeu 57.We are now referring to the downstream side of the assembly and mainly to Figures 2 and 3; the spacer 102 and the ring 103 are provided with flanges 38 and 39 which extend parallel to the downstream like the edges 7 and 8 of the design previous, but here the flange 38 of the spacer 102 includes only a flange 40 which establishes the stop with the rim 39; the flanges 38 and 39 are separated over most of their length of a game 57.

Le serrage de l'anneau 103 sur l'entretoise 102 en direction axiale est dû à un tenon 41 établi sur l'anneau 103 et situé derrière le rebord 38 de l'entretoise 102, du côté de la chambre 31 ; ce tenon est retenu dans une mortaise 42 délimitée par le rebord 38 et surtout par une languette 43 recourbée, construite sur la face arrière de ce rebord 38. Le bout 44 de la languette 43 est flexible, ce qui permet de le plier quand le montage est réalisé, pour supprimer le jeu en direction axiale du tenon 41 entre le rebord 38 et la languette 43 ; la faible rigidité du bout 44 permet de n'y introduire que des contraintes modérées, qui ne risquent pas de devenir excessives pendant le fonctionnement, quand des dilatations et des vibrations difficiles à évaluer ont affecté l'assemblage.The tightening of the ring 103 on the spacer 102 in axial direction is due to a stud 41 established on the ring 103 and located behind the rim 38 of the spacer 102, on the side of the chamber 31; this tenon is retained in a mortise 42 delimited by the rim 38 and especially by a bent tab 43, built on the back side of this rim 38. The last 44 of the tongue 43 is flexible, which allows the fold when editing is done, to remove the play in the axial direction of the tenon 41 between the flange 38 and the tongue 43; the low rigidity of the tip 44 allows to introduce only moderate constraints, which are not likely to become excessive during functioning, when dilations and vibrations difficult to evaluate affected the assembly.

On retrouve des agrafes 45 dont les branches 46 et 47 servent à enserrer les rebords 38 et 39 entre elles pour maintenir la butée par la collerette 40 ; cependant, les rebords 38 et 39 sont munis d'entailles 48 et 49 en regard et suffisamment larges pour qu'on puisse y glisser l'âme 50 de l'agrafe 45 en la poussant vers l'amont. L'âme 50 limite ainsi les mouvements angulaires de l'anneau 103 sur l'entretoise 102 grâce à des butées entre l'âme 50 et des faces latérales 51, 52, 53 et 54 des entailles 48 et 49. Aucun autre moyen n'est plus nécessaire pour arrêter ces mouvements : les pions utilisés auparavant et glissés dans des perçages des rebords deviennent inutiles et sont omis.There are staples 45 whose limbs 46 and 47 are used to enclose the flanges 38 and 39 between them to maintain the stop by the flange 40; however, the flanges 38 and 39 are provided with notches 48 and 49 opposite and wide enough to can slide the core 50 of the clip 45 by pushing it upstream. The soul 50 thus limits the movements angle of the ring 103 on the spacer 102 thanks to stops between the core 50 and side faces 51, 52, 53 and 54 cuts 48 and 49. No other means is no longer necessary to stop these movements: previously used pins slid into holes ledges become useless and are omitted.

Un joint d'étanchéité 55 peut être inséré dans une gorge 56 creusée dans un des rebords 39, à l'endroit des faces de butée, pour y parfaire l'étanchéité.A seal 55 may be inserted into a throat 56 dug into one of the flanges 39, at the location stop faces, to complete the seal.

Claims (6)

  1. Assembly between a turbine ring (103) and a turbine structure (101) spacer (102) comprising, on an upstream side, a ring hook (35) and a spacer hook (32) that are interlocked and, on a downstream side, a junction system comprising a spacer flange (38) and a ring flange (39), butted and clamped by clamps (45), and a tenon (41) and an axially retaining mortise (42) formed on the ring and the spacer, the tenon being engaged in the mortise, characterized in that the tenon (41) and the mortise (42) are situated upstream of the butted flanges.
  2. Assembly according to Claim 1, characterized in that the mortise (42) is delimited by a flexible tongue (43) of the spacer, the tenon (41) being engaged in the mortise with zero clearance.
  3. Assembly according to Claim 2, characterized in that the spacer flange (38) and the stop flange (39) are butted over a portion of their length and separated by a clearance over another portion of their length.
  4. Assembly according to Claim 3, characterized in that the flanges (38, 39) are provided with facing notches (48, 49) receiving a web (50) of the clamps (45).
  5. Assembly according to any one of Claims 1 to 4, characterized in that the tenon (41) and the mortise (42) protrude into an internal chamber delimited by the spacer and by the ring.
  6. Assembly according to any one of Claims 1 to 5, characterized in that the ring hook (39) covers the spacer hook (32).
EP00403105A 1999-11-10 2000-11-09 Positioning device for a turbine liner Expired - Lifetime EP1099826B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9914103 1999-11-10
FR9914103A FR2800797B1 (en) 1999-11-10 1999-11-10 ASSEMBLY OF A RING BORDING A TURBINE TO THE TURBINE STRUCTURE

Publications (2)

Publication Number Publication Date
EP1099826A1 EP1099826A1 (en) 2001-05-16
EP1099826B1 true EP1099826B1 (en) 2005-01-26

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EP00403105A Expired - Lifetime EP1099826B1 (en) 1999-11-10 2000-11-09 Positioning device for a turbine liner

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US (1) US6575697B1 (en)
EP (1) EP1099826B1 (en)
JP (1) JP4181323B2 (en)
KR (1) KR100724779B1 (en)
CA (1) CA2359049C (en)
DE (1) DE60017676T2 (en)
ES (1) ES2232397T3 (en)
FR (1) FR2800797B1 (en)
RU (1) RU2256082C2 (en)
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FR2800797B1 (en) 2001-12-07
UA67818C2 (en) 2004-07-15
CA2359049C (en) 2009-01-13
EP1099826A1 (en) 2001-05-16
WO2001034946A1 (en) 2001-05-17
US6575697B1 (en) 2003-06-10
KR100724779B1 (en) 2007-06-04
RU2256082C2 (en) 2005-07-10
JP4181323B2 (en) 2008-11-12
FR2800797A1 (en) 2001-05-11
ES2232397T3 (en) 2005-06-01
DE60017676T2 (en) 2005-12-29
JP2003514182A (en) 2003-04-15
KR20010089800A (en) 2001-10-08
CA2359049A1 (en) 2001-05-17
DE60017676D1 (en) 2005-03-03

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