EP1308630A1 - Stator sector for a compressor of a turbomachine - Google Patents

Stator sector for a compressor of a turbomachine Download PDF

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Publication number
EP1308630A1
EP1308630A1 EP02292634A EP02292634A EP1308630A1 EP 1308630 A1 EP1308630 A1 EP 1308630A1 EP 02292634 A EP02292634 A EP 02292634A EP 02292634 A EP02292634 A EP 02292634A EP 1308630 A1 EP1308630 A1 EP 1308630A1
Authority
EP
European Patent Office
Prior art keywords
housing
rotation
sectors
fixed
sectorized
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
Application number
EP02292634A
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German (de)
French (fr)
Other versions
EP1308630B1 (en
Inventor
Jean-Louis Bertrand
Jean-Marc Claude Perrollaz
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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Filing date
Publication date
Application filed by SNECMA Moteurs SA filed Critical SNECMA Moteurs SA
Publication of EP1308630A1 publication Critical patent/EP1308630A1/en
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Publication of EP1308630B1 publication Critical patent/EP1308630B1/en
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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
    • F01D25/246—Fastening of diaphragms or stator-rings
    • 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers

Definitions

  • the invention presented here concerns the high pressure turbine of a turbomachine such as a turbojet engine used on an airplane. It concerns more precisely a sectorized fixed rectifier for a turbomachine compressor.
  • US-A-4,126,405 discloses a segmented mounting of a turbine distributor.
  • Document FR-A-2 728 015 discloses a stator distributor of a turbine comprising sectors each consisting of an inner segment and an outer segment connected by blades.
  • a housing integrated in the stator of the compressor is intended to support the butted areas to each other. of the anti-rotation means are provided to prevent the rotation of the sectors supported by the housing.
  • the present invention has been designed to to further improve the manufacture and cost of a fixed rectifier for turbomachine compressor.
  • the housing is made in two parts or more, this which facilitates the manufacture.
  • the parts of the housing and the rectifier sectors are associated by a system forming slide and slide.
  • Anti-rotation means are designed to prevent the rotation of sectors relative to the crankcase.
  • the housing is made of two parts in the shape of a semicircle.
  • the casing comprising two radial flanks being face
  • the slide means comprises two Opposite grooves made in flanks, edges external segments of the sectors constituting the slider means.
  • the anti-rotation means fixed to the planes of joint can then include at least one bar immobilized between the two grooves by said means fastening and forming a stop for a sliding sector in a casing slide.
  • This bar can be a pair of tweezers inserted by bringing the two branches together in dwellings of intended reception in the throats, and immobilized in these dwellings by loosening of the two branches, thus realizing said fixing means.
  • Ways anti-rotation attached to the joint planes can also include at least one anti-rotation lock constituted by an element comprising slide means adapted to the slider means of the parts of the carter, the element also comprising means immobilization on the crankcase.
  • These means immobilization can be of the tenon-mortise type, a tenon engaging in a mortise when the element is pushed in a direction perpendicular to the sliding direction of the element in the housing, thus realizing said fixing means.
  • the segment outside the sector adjacent to that element may have one of its ends that has a clearance so that, when this adjacent sector is slipped on contact said element, the element can be pushed into said perpendicular direction.
  • the anti-rotation means blocked on the parts of the housing may then comprise at least one anti-rotation lock constituted by an element comprising slide means adapted to means forming a slide of the parts of the casing, the element also comprising means immobilization on the crankcase.
  • These means immobilization can be of the tenon-mortise type, a tenon engaging in a mortise when the element is pushed in a direction perpendicular to the sliding direction of the element in the housing, thereby realizing said locking means.
  • the segment outside a sector adjacent to that element may have one of its ends that presents a clearance so that when this adjacent area is slipped into contact with said element, the element can be pushed in said perpendicular direction.
  • Figure 1 is a partial sectional view of a compressor of a turbomachine using sectorized fixed rectifiers 1, 2 and 3 according to the invention. These rectifiers are functionally identical.
  • the rectifier 1 will be described more precisely. It includes a built-in circular case 4 in the stator of the compressor and supporting sectors such as sector 5.
  • a sector 5 consists of a segment inside 7 and an outer segment 6 connected between they by blades 8.
  • Figure 2 is a partial view and exploded sectorized fixed rectifier 1. It includes example a housing in two parts in the form of a semicircle. Figure 2 shows partially one of the parts 11 of this case with one of his joint plans 12 intended to be fixed on a joint plane corresponding to the other part of the housing. Three sectors 5 being assembled are represented. For sector 5, we recognize the outer segment 6, the inner segment 7 and the blades 8 which connect them.
  • the housing portion 11 comprises two flanks radial 12 and 13 facing each other and each provided of a throat.
  • the throats are located vis-à-vis constitute a slide.
  • the edges 21 and 22 of the segment outside 6 of sector 5 protrude outwards to ensure a slide function with respect to the slide formed by the casing portion 11.
  • an anti-rotation lock is installed at the joint plane 12 of the housing part 11. It can be a bar or a lock such as the one shown in Figure 4.
  • Figure 2 also shows an anti-rotation lock 30 disposed between two sectors 5.
  • This latch 30 is shown in cavalier view in Figure 3. It is formed an element 31 which is placed between the two flanks 12 and 13 of the housing portion 11 (see Figure 2).
  • the element 31 is in the shape of an arc of a circle and extended by an outer edge 32 and an inner edge 33.
  • the edges 32 and 33 are provided so that the lock 30 can slide in the grooves of the part of casing 11.
  • the outer edge 32 has a lug 34 protruding from the plane of the element 31. It is even for the lug 35 of the inner edge 33.
  • Figures 5 and 6 illustrate two steps of setting up an anti-rotation lock 30 between two sectors. 5.
  • a only flanks of the housing portion 11 has been represent. We can see the gorge 14 provided in this flank.
  • Figure 5 shows a first sector 5 already installed (to the left of the figure) and a second Sector 5 being installed (on the right of the figure). Between these two sectors was introduced by sliding a latch 30. Note that the height of the groove 14 allows the passage of the outer edge of the latch 30 with his ergot 34.
  • the element 30 is slipped to come into stop on the first sector 5. This corresponds to the element 30 at a position relative to the part of housing 11 such that the pin 34 is in vis-à-vis a notch 15 machined in the part of 11. Then just exercise on the lock 30 a push up (for the representation of Figures 5 and 6) for the pin 34 to enter the notch 15, the latch 30 being then in raised position.
  • the second sector 5 can then be pushed to lock 30.
  • This second sector 5 present, at the end in contact with the latch 30, a clearance 23 such as a portion of the outer segment 6 goes under lock 30.
  • Anti-rotation bolt 40 of joint plane shown in Figure 4 is mounted in the same way than the lock in Figure 3. It is formed of an element 25 between the two sides of the casing. Element 41 is extended by an outer edge 42 and an inner edge 43. The outer edge 42 has a lug 44 projecting from the plane of element 41. The same applies to the lug 45 of the edge interior 43.

Abstract

A circular casing is integrated into a compressor stator and supports sectors (5) in contact with each other. An anti-rotation device is fixed to the joint planes of the casing to prevent sectors from rotating. The anti-rotation device is blocked on the casing by a lock at the contact between sectors.

Description

DOMAINE TECHNIQUETECHNICAL AREA

L'invention présentée ici concerne la turbine haute pression d'une turbomachine telle qu'un turboréacteur utilisé sur un avion. Elle concerne plus précisément un redresseur fixe sectorisé pour un compresseur de turbomachine.The invention presented here concerns the high pressure turbine of a turbomachine such as a turbojet engine used on an airplane. It concerns more precisely a sectorized fixed rectifier for a turbomachine compressor.

ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART

Il existe une très grande variété de compresseurs pour turbomachines. Les efforts des constructeurs portent sur l'amélioration des performances mais aussi sur l'amélioration de la fabrication, la réduction des coûts et la facilité de l'entretien.There is a very wide variety of compressors for turbomachines. The efforts of builders focus on improving performance but also on improving the manufacturing, cost reduction and ease of maintenance.

Une amélioration connue a consisté à sectoriser le redresseur fixe d'un compresseur pour turbomachine. Le brevet US-A-4 126 405 divulgue un montage segmenté d'un distributeur de turbine.A known improvement consisted of sectoriser the fixed rectifier of a compressor for turbine engine. US-A-4,126,405 discloses a segmented mounting of a turbine distributor.

Le document FR-A-2 728 015 divulgue un distributeur de stator d'une turbine comprenant des secteurs constitués chacun d'un segment intérieur et d'un segment extérieur reliés par des aubes. Un carter intégré dans le stator du compresseur est destiné à supporter les secteurs aboutés les uns aux autres. Des moyens anti-rotation sont prévus pour empêcher la rotation des secteurs supportés par le carter. Document FR-A-2 728 015 discloses a stator distributor of a turbine comprising sectors each consisting of an inner segment and an outer segment connected by blades. A housing integrated in the stator of the compressor is intended to support the butted areas to each other. of the anti-rotation means are provided to prevent the rotation of the sectors supported by the housing.

EXPOSÉ DE L'INVENTIONSTATEMENT OF THE INVENTION

La présente invention a été conçue afin d'améliorer encore la fabrication et le coût d'un redresseur fixe pour compresseur de turbomachine. Pour cela le carter est réalisé en deux parties ou plus, ce qui facilite la fabrication. Les parties du carter et les secteurs de redresseur sont associés par un système formant glissière et coulisseau. Des moyens anti-rotation sont prévus pour éviter la rotation des secteurs par rapport au carter.The present invention has been designed to to further improve the manufacture and cost of a fixed rectifier for turbomachine compressor. For this the housing is made in two parts or more, this which facilitates the manufacture. The parts of the housing and the rectifier sectors are associated by a system forming slide and slide. Anti-rotation means are designed to prevent the rotation of sectors relative to the crankcase.

L'invention a donc pour objet un redresseur fixe sectorisé pour compresseur d'une turbomachine comprenant :

  • des secteurs en forme d'arc de cercle constitués chacun d'un segment intérieur et d'un segment extérieur reliés par des aubes,
  • un carter circulaire intégré dans le stator du compresseur et destiné à supporter les secteurs aboutés les uns aux autres,
  • des moyens anti-rotation destinés à empêcher la rotation des secteurs supportés par le carter,
caractérisé en ce que :
  • le carter est constitué d'au moins deux parties, aboutées et fixées entre elles selon des plans de joint, comprenant des moyens formant glissière,
  • les secteurs comprennent des moyens formant coulisseau adaptés aux moyens formant glissière des parties du carter,
  • les moyens anti-rotation comprennent des moyens anti-rotation fixés aux plans de joint des parties du carter par des moyens de fixation, et des moyens anti-rotation bloqués sur les parties du carter par des moyens de blocage au niveau de l'aboutement des secteurs entre eux.
The subject of the invention is therefore a sectorized fixed rectifier for a compressor of a turbomachine comprising:
  • arcuate sectors each consisting of an inner segment and an outer segment connected by vanes,
  • a circular casing integrated in the stator of the compressor and intended to support the abutting sectors with each other,
  • anti-rotation means for preventing the rotation of the sectors supported by the housing,
characterized in that
  • the casing consists of at least two parts, abutting and fixed together in joint planes, comprising slide means,
  • the sectors comprise slider means adapted to the slider means of the housing parts,
  • the anti-rotation means comprise anti-rotation means fixed to the joint planes of the parts of the casing by fastening means, and anti-rotation means blocked on the parts of the casing by locking means at the abutment of the sectors between them.

De préférence, le carter est constitué de deux parties en forme de demi-cercle.Preferably, the housing is made of two parts in the shape of a semicircle.

Selon une variante de réalisation préférée, le carter comprenant deux flancs radiaux se faisant face, les moyens formant glissière comprennent deux gorges opposées réalisées dans les flancs, les bords des segments extérieurs des secteurs constituant les moyens formant coulisseau.According to a preferred embodiment variant, the casing comprising two radial flanks being face, the slide means comprises two Opposite grooves made in flanks, edges external segments of the sectors constituting the slider means.

Les moyens anti-rotation fixés aux plans de joint peuvent alors comprendre au moins une barrette immobilisée entre les deux rainures par lesdits moyens de fixation et formant butée pour un secteur coulissant dans une glissière du carter. Cette barrette peut être une pince à deux branches insérée par rapprochement des deux branches entre elles dans des logements de réception prévus dans les gorges, et immobilisée dans ces logements par relâchement des deux branches, réalisant ainsi lesdits moyens de fixation. Les moyens anti-rotation fixés aux plans de joint peuvent aussi comprendre au moins un verrou anti-rotation constitué par un élément comprenant des moyens formant coulisseau adaptés aux moyens formant glissière des parties du carter, l'élément comprenant également des moyens d'immobilisation sur le carter. Ces moyens d'immobilisation peuvent être du type tenon-mortaise, un tenon s'engageant dans une mortaise quand l'élément est poussé dans une direction perpendiculaire à la direction de glissement de l'élément dans le carter, réalisant ainsi lesdits moyens de fixation. Le segment extérieur du secteur adjacent audit élément peut avoir l'une de ses extrémités qui présente un dégagement afin que, lorsque ce secteur adjacent est glissé au contact dudit élément, l'élément puisse être poussé dans ladite direction perpendiculaire.The anti-rotation means fixed to the planes of joint can then include at least one bar immobilized between the two grooves by said means fastening and forming a stop for a sliding sector in a casing slide. This bar can be a pair of tweezers inserted by bringing the two branches together in dwellings of intended reception in the throats, and immobilized in these dwellings by loosening of the two branches, thus realizing said fixing means. Ways anti-rotation attached to the joint planes can also include at least one anti-rotation lock constituted by an element comprising slide means adapted to the slider means of the parts of the carter, the element also comprising means immobilization on the crankcase. These means immobilization can be of the tenon-mortise type, a tenon engaging in a mortise when the element is pushed in a direction perpendicular to the sliding direction of the element in the housing, thus realizing said fixing means. The segment outside the sector adjacent to that element may have one of its ends that has a clearance so that, when this adjacent sector is slipped on contact said element, the element can be pushed into said perpendicular direction.

Les moyens anti-rotation bloqués sur les parties du carter peuvent alors comprendre au moins un verrou anti-rotation constitué par un élément comprenant des moyens formant coulisseau adaptés aux moyens formant glissière des parties du carter, l'élément comprenant également des moyens d'immobilisation sur le carter. Ces moyens d'immobilisation peuvent être du type tenon-mortaise, un tenon s'engageant dans une mortaise quand l'élément est poussé dans une direction perpendiculaire à la direction de glissement de l'élément dans le carter, réalisant ainsi lesdits moyens de blocage. Le segment extérieur d'un secteur adjacent audit élément peut avoir l'une de ses extrémités qui présente un dégagement afin que, lorsque ce secteur adjacent est glissé au contact dudit élément, l'élément puisse être poussé dans ladite direction perpendiculaire.The anti-rotation means blocked on the parts of the housing may then comprise at least one anti-rotation lock constituted by an element comprising slide means adapted to means forming a slide of the parts of the casing, the element also comprising means immobilization on the crankcase. These means immobilization can be of the tenon-mortise type, a tenon engaging in a mortise when the element is pushed in a direction perpendicular to the sliding direction of the element in the housing, thereby realizing said locking means. The segment outside a sector adjacent to that element may have one of its ends that presents a clearance so that when this adjacent area is slipped into contact with said element, the element can be pushed in said perpendicular direction.

BRÈVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

L'invention sera mieux comprise et d'autres avantages et particularités apparaítront à la lecture de la description qui va suivre, donnée à titre d'exemple non limitatif, accompagnée des dessins annexés parmi lesquels :

  • la figure 1 est une vue partielle en coupe d'un compresseur d'un turbomachine utilisant un redresseur fixe sectorisé selon l'invention,
  • la figure 2 est une vue partielle et éclatée d'un redresseur fixe sectorisé selon l'invention,
  • la figure 3 est une vue cavalière d'un verrou anti-rotation pour plan de joint d'une partie de carter pour le redresseur fixe sectorisé de l'invention,
  • la figure 4 est une vue cavalière d'un verrou anti-rotation disposé entre deux secteurs d'un redresseur fixe sectorisé selon l'invention,
  • les figures 5 et 6 illustrent deux étapes de la mise en place d'un verrou anti-rotation entre deux secteurs d'un redresseur fixe sectorisé selon l'invention.
The invention will be better understood and other advantages and particularities will appear on reading the following description, given by way of non-limiting example, accompanied by the appended drawings among which:
  • FIG. 1 is a partial sectional view of a compressor of a turbomachine using a sectored fixed rectifier according to the invention,
  • FIG. 2 is a fragmentary and exploded view of a sectored fixed rectifier according to the invention,
  • FIG. 3 is a side view of an anti-rotation latch for a joint plane of a housing part for the sectorized fixed rectifier of the invention,
  • FIG. 4 is a side view of an anti-rotation lock disposed between two sectors of a sectored fixed rectifier according to the invention,
  • Figures 5 and 6 illustrate two steps of the establishment of an anti-rotation lock between two sectors of a sectored fixed rectifier according to the invention.

DESCRIPTION DÉTAILLÉE DE MODES DE RÉALISATION DE L'INVENTIONDETAILED DESCRIPTION OF EMBODIMENTS THE INVENTION

La figure 1 est une vue partielle en coupe d'un compresseur d'une turbomachine utilisant des redresseurs fixes sectorisés 1, 2 et 3 selon l'invention. Ces redresseurs sont fonctionnellement identiques.Figure 1 is a partial sectional view of a compressor of a turbomachine using sectorized fixed rectifiers 1, 2 and 3 according to the invention. These rectifiers are functionally identical.

Le redresseur 1 va être décrit plus précisément. Il comprend un carter circulaire 4 intégré dans le stator du compresseur et supportant des secteurs tel que le secteur 5. The rectifier 1 will be described more precisely. It includes a built-in circular case 4 in the stator of the compressor and supporting sectors such as sector 5.

Un secteur 5 est constitué d'un segment intérieur 7 et d'un segment extérieur 6 reliés entre eux par des aubes 8.A sector 5 consists of a segment inside 7 and an outer segment 6 connected between they by blades 8.

La figure 2 est une vue partielle et éclatée du redresseur fixe sectorisé 1. Il comprend par exemple un carter en deux parties en forme de demi-cercle. La figure 2 montre partiellement l'une des parties 11 de ce carter avec l'un de ses plans de joint 12 destiné à être fixé sur un plan de joint correspondant de l'autre partie du carter. Trois secteurs 5 en cours de montage sont représentés. Pour un secteur 5, on reconnaít le segment extérieur 6, le segment intérieur 7 et les aubes 8 qui les relient.Figure 2 is a partial view and exploded sectorized fixed rectifier 1. It includes example a housing in two parts in the form of a semicircle. Figure 2 shows partially one of the parts 11 of this case with one of his joint plans 12 intended to be fixed on a joint plane corresponding to the other part of the housing. Three sectors 5 being assembled are represented. For sector 5, we recognize the outer segment 6, the inner segment 7 and the blades 8 which connect them.

La partie de carter 11 comprend deux flancs radiaux 12 et 13 se faisant face et pourvus chacun d'une gorge. Les gorges sont situées en vis-à-vis pour constituer une glissière. Les bords 21 et 22 du segment extérieur 6 du secteur 5 font saillie vers l'extérieur pour assurer une fonction de coulisseau par rapport à la glissière formée par la partie de carter 11.The housing portion 11 comprises two flanks radial 12 and 13 facing each other and each provided of a throat. The throats are located vis-à-vis constitute a slide. The edges 21 and 22 of the segment outside 6 of sector 5 protrude outwards to ensure a slide function with respect to the slide formed by the casing portion 11.

Avant d'engager un premier secteur 5 sur la partie de carter 11, un verrou anti-rotation est installé au plan de joint 12 de la partie de carter 11. Il peut s'agir d'une barrette ou d'un verrou tel que celui représenté à la figure 4.Before engaging a first sector 5 on the part of casing 11, an anti-rotation lock is installed at the joint plane 12 of the housing part 11. It can be a bar or a lock such as the one shown in Figure 4.

La figure 2 montre aussi un verrou anti-rotation 30 disposé entre deux secteurs 5. Ce verrou 30 est montré en vue cavalière à la figure 3. Il est formé d'un élément 31 qui se place entre les deux flancs 12 et 13 de la partie de carter 11 (voir la figure 2). L'élément 31 est en forme d'arc de cercle et se prolonge par un bord extérieur 32 et un bord intérieur 33. Les bords 32 et 33 sont prévus pour que le verrou 30 puisse coulisser dans les gorges de la partie de carter 11. Le bord extérieur 32 comporte un ergot 34 faisant saillie du plan de l'élément 31. Il en va de même pour l'ergot 35 du bord intérieur 33.Figure 2 also shows an anti-rotation lock 30 disposed between two sectors 5. This latch 30 is shown in cavalier view in Figure 3. It is formed an element 31 which is placed between the two flanks 12 and 13 of the housing portion 11 (see Figure 2). The element 31 is in the shape of an arc of a circle and extended by an outer edge 32 and an inner edge 33. The edges 32 and 33 are provided so that the lock 30 can slide in the grooves of the part of casing 11. The outer edge 32 has a lug 34 protruding from the plane of the element 31. It is even for the lug 35 of the inner edge 33.

Les figures 5 et 6 illustrent deux étapes de la mise en place d'un verrou anti-rotation 30 entre deux secteurs 5. Pour une meilleure compréhension, un seul des flancs de la partie de carter 11 a été représenté. On aperçoit la gorge 14 prévue dans ce flanc.Figures 5 and 6 illustrate two steps of setting up an anti-rotation lock 30 between two sectors. 5. For a better understanding, a only flanks of the housing portion 11 has been represent. We can see the gorge 14 provided in this flank.

La figure 5 montre un premier secteur 5 déjà installé (à gauche de la figure) et un deuxième secteur 5 en cours de montage (à droite de la figure). Entre ces deux secteurs a été introduit par glissement un verrou 30. On remarque que la hauteur de la gorge 14 permet le passage du bord extérieur du verrou 30 avec son ergot 34.Figure 5 shows a first sector 5 already installed (to the left of the figure) and a second Sector 5 being installed (on the right of the figure). Between these two sectors was introduced by sliding a latch 30. Note that the height of the groove 14 allows the passage of the outer edge of the latch 30 with his ergot 34.

L'élément 30 est glissé jusqu'à venir en butée sur le premier secteur 5. Ceci correspond pour l'élément 30 à une position relative par rapport à la partie de carter 11 telle que l'ergot 34 se trouve en vis-à-vis d'une encoche 15 usinée dans la partie de carter 11. Il suffit alors d'exercer sur le verrou 30 une poussée vers le haut (pour la représentation des figures 5 et 6) pour que l'ergot 34 pénètre dans l'encoche 15, le verrou 30 se trouvant alors en position surélevée.The element 30 is slipped to come into stop on the first sector 5. This corresponds to the element 30 at a position relative to the part of housing 11 such that the pin 34 is in vis-à-vis a notch 15 machined in the part of 11. Then just exercise on the lock 30 a push up (for the representation of Figures 5 and 6) for the pin 34 to enter the notch 15, the latch 30 being then in raised position.

Le deuxième secteur 5 peut alors être poussé vers le verrou 30. Ce deuxième secteur 5 présente, à l'extrémité en contact avec le verrou 30, un dégagement 23 tel qu'une partie du segment extérieur 6 passe sous le verrou 30.The second sector 5 can then be pushed to lock 30. This second sector 5 present, at the end in contact with the latch 30, a clearance 23 such as a portion of the outer segment 6 goes under lock 30.

Le verrou anti-rotation 40 de plan de joint représenté à la figure 4 se monte de la même manière que le verrou de la figure 3. Il est formé d'un élément 41 qui se place entre les deux flancs de la partie de carter. L'élément 41 se prolonge par un bord extérieur 42 et un bord intérieur 43. Le bord extérieur 42 comporte un ergot 44 faisant saillie du plan de l'élément 41. Il en va de même pour l'ergot 45 du bord intérieur 43.Anti-rotation bolt 40 of joint plane shown in Figure 4 is mounted in the same way than the lock in Figure 3. It is formed of an element 25 between the two sides of the casing. Element 41 is extended by an outer edge 42 and an inner edge 43. The outer edge 42 has a lug 44 projecting from the plane of element 41. The same applies to the lug 45 of the edge interior 43.

Claims (11)

Redresseur fixe sectorisé pour compresseur d'une turbomachine comprenant : des secteurs (5) en forme d'arc de cercle constitués chacun d'un segment intérieur (7) et d'un segment extérieur (6) reliés par des aubes (8), un carter circulaire (4) intégré dans le stator du compresseur et destiné à supporter les secteurs (5) aboutés les uns aux autres, des moyens anti-rotation destinés à empêcher la rotation des secteurs supportés par le carter, caractérisé en ce que : le carter (4) est constitué d'au moins deux parties (11), aboutées et fixées entre elles selon des plans de joint, comprenant des moyens formant glissière, les secteurs (5) comprennent des moyens formant coulisseau adaptés aux moyens formant glissière des parties du carter, les moyens anti-rotation comprennent des moyens anti-rotation fixés aux plans de joint des parties du carter par des moyens de fixation, et des moyens anti-rotation bloqués sur les parties du carter par des moyens de blocage au niveau de l'aboutement des secteurs entre eux. Sectorized fixed rectifier for a turbomachine compressor comprising: sectors (5) in the shape of an arc of a circle each consisting of an inner segment (7) and an outer segment (6) connected by vanes (8), a circular casing (4) integrated in the stator of the compressor and intended to support the sectors (5) abutting to one another, anti-rotation means for preventing the rotation of the sectors supported by the housing, characterized in that the casing (4) consists of at least two parts (11), abutting and fixed together in joint planes, comprising slide means, the sectors (5) comprise slider means adapted to the slider means of the housing parts, the anti-rotation means comprise anti-rotation means fixed to the joint planes of the parts of the casing by fastening means, and anti-rotation means blocked on the parts of the casing by locking means at the abutment of the sectors between them. Redresseur fixe sectorisé selon la revendication 1, caractérisé en ce que le carter (4) est constitué de deux parties (11) en forme de demi-cercle.Sectorized fixed rectifier according to claim 1, characterized in that the housing (4) consists of two parts (11) in the form of a semicircle. Redresseur fixe sectorisé selon l'une des revendications 1 ou 2, caractérisé en ce que, le carter comprenant deux flancs radiaux (12, 13) se faisant face, les moyens formant glissière comprennent deux gorges (14) opposées réalisées dans les flancs, les bords (21, 22) des segments extérieurs (6) des secteurs (5) constituant les moyens formant coulisseau.Sectorized fixed straightener according to one of claims 1 or 2, characterized in that , the casing comprising two radial flanks (12, 13) facing each other, the slideway means comprise two opposite grooves (14) formed in the flanks, edges (21, 22) of the outer segments (6) of the sectors (5) constituting the slider means. Redresseur fixe sectorisé selon la revendication 3, caractérisé en ce que les moyens anti-rotation fixés aux plans de joint comprennent au moins une barrette immobilisée entre les deux rainures par lesdits moyens de fixation et formant butée pour un secteur coulissant dans une glissière du carter.Sectorized fixed straightener according to claim 3, characterized in that the anti-rotation means fixed to the joint planes comprise at least one bar immobilized between the two grooves by said fixing means and forming a stop for a sliding sector in a casing of the housing. Redresseur fixe sectorisé selon la revendication 4, caractérisé en ce que la barrette est une pince à deux branches insérée par rapprochement des deux branches entre elles dans des logements de réception prévus dans les gorges, et immobilisée dans ces logements par relâchement des deux branches, réalisant ainsi lesdits moyens de fixation.Sectorized fixed straightener according to claim 4, characterized in that the bar is a pair of tweezers inserted by bringing the two branches together in receiving housings provided in the grooves, and immobilized in these housing by loosening the two branches, realizing thus said fixing means. Redresseur fixe sectorisé selon la revendication 3, caractérisé en ce que les moyens anti-rotation fixés aux plans de joint comprennent au moins un verrou anti-rotation (40) constitué par un élément (41) comprenant des moyens formant coulisseau (42, 43) adaptés aux moyens formant glissière des parties du carter, l'élément comprenant également des moyens d'immobilisation (44, 45) sur le carter.Sectorized fixed straightener according to claim 3, characterized in that the anti-rotation means attached to the joint planes comprise at least one anti-rotation lock (40) consisting of an element (41) comprising slider means (42, 43). adapted to the slide means of the housing parts, the element also comprising immobilization means (44, 45) on the housing. Redresseur fixe sectorisé selon la revendication 6, caractérisé en ce que les moyens d'immobilisation sont du type tenon-mortaise, un tenon s'engageant dans une mortaise quand l'élément (41) est poussé dans une direction perpendiculaire à la direction de glissement de l'élément dans le carter, réalisant ainsi lesdits moyens de fixation.Sectorized fixed straightener according to claim 6, characterized in that the immobilizing means are of the tenon-mortise type, a tenon engaging in a mortise when the element (41) is pushed in a direction perpendicular to the sliding direction of the element in the housing, thereby realizing said fixing means. Redresseur fixe sectorisé selon la revendication 7, caractérisé en ce que le segment extérieur du secteur adjacent audit élément (41) a l'une de ses extrémités qui présente un dégagement afin que, lorsque ce secteur adjacent est glissé au contact dudit élément, l'élément puisse être poussé dans ladite direction perpendiculaire.Sectorized fixed rectifier according to claim 7, characterized in that the outer segment of the sector adjacent to said element (41) has one of its ends which has a clearance so that, when this adjacent sector is slid in contact with said element, the element can be pushed in said perpendicular direction. Redresseur fixe sectorisé selon la revendication 3, caractérisé en ce que les moyens anti-rotation bloqués sur les parties du carter comprennent au moins un verrou anti-rotation (30) constitué par un élément (31) comprenant des moyens formant coulisseau (32, 33) adaptés aux moyens formant glissière des parties du carter, l'élément comprenant également des moyens d'immobilisation (34, 35) sur le carter.Sectorized fixed straightener according to claim 3, characterized in that the anti-rotation means clamped on the housing parts comprise at least one anti-rotation lock (30) consisting of an element (31) comprising slide means (32, 33). ) adapted to the slider means of the housing parts, the element also comprising immobilization means (34, 35) on the housing. Redresseur fixe sectorisé selon la revendication 9, caractérisé en ce que les moyens d'immobilisation sont du type tenon-mortaise, un tenon s'engageant dans une mortaise quand l'élément (31) est poussé dans une direction perpendiculaire à la direction de glissement de l'élément dans le carter, réalisant ainsi lesdits moyens de blocage.Sectorized fixed straightener according to claim 9, characterized in that the immobilization means are of the tenon-mortise type, a tenon engaging in a mortise when the element (31) is pushed in a direction perpendicular to the sliding direction of the element in the housing, thereby realizing said locking means. Redresseur fixe sectorisé selon la revendication 10, caractérisé en ce que le segment extérieur d'un secteur adjacent audit élément (31) a l'une de ses extrémités qui présente un dégagement afin que, lorsque ce secteur adjacent est glissé au contact dudit élément, l'élément puisse être poussé dans ladite direction perpendiculaire.Sectorized fixed straightener according to claim 10, characterized in that the outer segment of a sector adjacent to said element (31) has one of its ends which has a clearance so that when this adjacent sector is slid in contact with said element, the element can be pushed in said perpendicular direction.
EP02292634A 2001-10-31 2002-10-24 Stator sector for a compressor of a turbomachine Expired - Lifetime EP1308630B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0114102A FR2831615B1 (en) 2001-10-31 2001-10-31 SECTORIZED FIXED RECTIFIER FOR A TURBOMACHINE COMPRESSOR
FR0114102 2001-10-31

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EP1308630A1 true EP1308630A1 (en) 2003-05-07
EP1308630B1 EP1308630B1 (en) 2006-08-23

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EP (1) EP1308630B1 (en)
JP (1) JP4181375B2 (en)
CA (1) CA2409972C (en)
DE (1) DE60214106T2 (en)
ES (1) ES2266430T3 (en)
FR (1) FR2831615B1 (en)
RU (1) RU2287090C2 (en)
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JP4181375B2 (en) 2008-11-12
US20030082051A1 (en) 2003-05-01
DE60214106T2 (en) 2007-04-12
US6890151B2 (en) 2005-05-10
EP1308630B1 (en) 2006-08-23
FR2831615B1 (en) 2004-01-02
CA2409972A1 (en) 2003-04-30
RU2287090C2 (en) 2006-11-10
CA2409972C (en) 2011-04-12
UA75069C2 (en) 2006-03-15
DE60214106D1 (en) 2006-10-05
FR2831615A1 (en) 2003-05-02
ES2266430T3 (en) 2007-03-01
JP2003161297A (en) 2003-06-06

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