EP3524781B1 - Dispositif de raccordement pour une aube réglable d'une turbine à gaz - Google Patents

Dispositif de raccordement pour une aube réglable d'une turbine à gaz Download PDF

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Publication number
EP3524781B1
EP3524781B1 EP19156113.3A EP19156113A EP3524781B1 EP 3524781 B1 EP3524781 B1 EP 3524781B1 EP 19156113 A EP19156113 A EP 19156113A EP 3524781 B1 EP3524781 B1 EP 3524781B1
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EP
European Patent Office
Prior art keywords
connecting device
lever
pin
receptacle
clamping
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.)
Active
Application number
EP19156113.3A
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German (de)
English (en)
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EP3524781A1 (fr
Inventor
Werner Humhauser
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.)
MTU Aero Engines AG
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MTU Aero Engines AG
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Publication date
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Publication of EP3524781A1 publication Critical patent/EP3524781A1/fr
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Publication of EP3524781B1 publication Critical patent/EP3524781B1/fr
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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
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • 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
    • F01D25/243—Flange connections; Bolting arrangements
    • 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
    • F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/36—Retaining components in desired mutual position by a form fit connection, e.g. by interlocking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/37—Retaining components in desired mutual position by a press fit connection

Definitions

  • the present invention relates to a connecting device for an adjustable blade of a gas turbine, in particular an aircraft gas turbine, comprising a pin element connected to a relevant blade and a lever element connected to the pin element, the lever element and the pin element being movable together about a pin axis of rotation.
  • a threaded section is formed on the pin element, in particular at its axial end facing away from the blade, or a change in shape is made in some other way, such as bevels and the like, in order to connect the pin section to the lever element can. Examples of this are from EP 2 177 771 A2 or the WO 2015/031058 A1 known. Further examples of connection devices for adjustable guide vanes of gas turbines are shown in US 2004/240990 A1 and US 2008/031729 A1 disclosed.
  • the connecting device has a tensioning element which is arranged between the lever element and the pin element is such that a non-positive connection between the pin element, the clamping element and the lever element can be or can be produced.
  • a tensioning element which is arranged between the lever element and the pin element is such that a non-positive connection between the pin element, the clamping element and the lever element can be or can be produced.
  • the tensioning element preferably has a plurality of recesses along its circumference, such that a respective elastically movable tensioning section is formed between adjacent recesses.
  • the tensioning element can be stretched in the assembled state due to the non-positive connection and / or have a pretension.
  • At least two diametrically opposite recesses in the clamping element can be dimensioned such that they form a clamping receptacle in which the positioning element is received. Accordingly, in an assembled state of the connecting device, the positioning element is arranged in such a way that it is arranged in the clamping receptacle, the pin receptacle and the lever receptacle.
  • the clamping receptacle, the pin receptacle and the lever receptacle can thus advantageously be aligned with one another in a simple manner by the positioning element, without the need for readjustment during assembly.
  • the clamping sections can be designed in such a way that they have a conical outer contact surface.
  • the radially inner contact surface of the coupling section of the lever element and the radially outer contact surfaces of the clamping sections can bear against one another and can be braced against one another.
  • the lever element, the tensioning element and the pin element are aligned with one another by means of a positioning element, the positioning element being received in a pin receptacle and a lever receptacle.
  • the pin receptacle thus serves as a receptacle of the positioning element in the pin element, while the lever receptacle serves as a receptacle for the positioning element in the lever element.
  • the positioning element can be designed as a plate-like feather key, for example.
  • the positioning element serves in particular to enable an alignment of the lever element and the pin element in the circumferential direction in relation to the pin axis of rotation. This alignment takes place by means of the positioning element before the connecting device is tightened.
  • a separate positioning element By using a separate positioning element, a weakening or change in the cross section of the pin element can be avoided, especially in areas in which forces, in particular rotational forces, are transmitted from the lever element to the pin element when the connecting device is assembled.
  • the pin receptacle and the lever receptacle are arranged in alignment with one another. This enables a particularly simple and inexpensive production of the positioning element and the corresponding receptacles and thus also facilitates assembly.
  • the positioning element is designed symmetrically to a plane running through the pivot axis of rotation. This also simplifies production and makes it possible not to have to pay attention to an installation direction of the positioning element during assembly.
  • the pin receptacle can preferably be formed in an axial end section of the pin element.
  • the positioning element can advantageously be connected to the pin element first during assembly, which facilitates the subsequent arrangement of the lever element, in particular its coupling section, on or on the pin element.
  • the pin receptacle is designed as a slot.
  • the slot can have an axial depth that is somewhat greater than the axial extent or height of the positioning element that passes through the pin receptacle.
  • the tensioning element can have a threaded section to which a nut can be fastened or is fastened.
  • the threaded section is located on an axial section of the tensioning element which faces away from the pin element.
  • the lever element can have a sleeve-like coupling section, the coupling section and the pin element being arranged concentrically to one another.
  • the coupling section can in particular be designed circular. Externally, the coupling section has an essentially cylindrical shape.
  • the lever receptacle can be formed in an axial edge section of the coupling section.
  • the lever receptacle can be formed by two lever receptacle sections lying diametrically opposite one another.
  • the lever receiving sections can be provided as radially extending slots in the edge section.
  • the coupling section can have a radially inner contact surface that is conical.
  • the radially inner contact surface faces the pin element.
  • the contact surface surrounds the pin element, there being a distance between the contact surface and the pin element.
  • the connecting device can have a securing sleeve which is arranged in the axial direction on the coupling section.
  • the securing sleeve can have a peripheral edge which extends somewhat in the axial direction over the coupling section of the lever element. This can ensure that the positioning element cannot be removed from the connecting device in the assembled state of the connecting device.
  • the securing sleeve can be arranged between the nut and the coupling section in such a way that a force exerted by the nut is transmitted in the axial direction to the securing sleeve and the coupling section. Due to the interaction of its radially inner contact surface with the contact surfaces of the clamping sections, an axial force acting on the coupling section of the lever element results in the clamping sections being pressed against the pin element essentially in the radial direction, so that the pin element is held by the clamping sections with a force fit.
  • the positioning element In the assembled state of the connecting device, the positioning element can be accommodated without force transmission.
  • the tensioning element By using the tensioning element, a non-positive connection can be established between the lever element and the pin element, the positioning element serving for the correct alignment of the lever element and the pin element to one another during assembly.
  • the positioning element In the event of a rotary movement to be transmitted from the lever element to the pin element about the pin axis of rotation, the positioning element is also rotated, but it does not transfer any forces from the lever element to the pin element.
  • the blades discussed here can in particular be adjustable blades of a compressor of the gas turbine.
  • the invention also relates to a gas turbine, in particular an aircraft gas turbine, with a plurality of adjustable blades arranged next to one another in the circumferential direction of the turbine, in particular guide blades, with a connecting device according to one of the preceding claims being arranged on each blade, and wherein the lever elements of the connecting devices with one along the circumferential direction of the gas turbine movable adjusting ring are coupled.
  • the adjustable blades arranged next to one another in the circumferential direction of the turbine can be assigned to a compressor stage.
  • Such an adjustable blade ring can also be provided several times on a gas turbine, so that a ring with adjustable blades can be provided for any type of compressor, such as low-pressure, medium-pressure or high-pressure compressor at any compressor stage.
  • Fig. 1 shows schematically and simplified an aircraft gas turbine 10, which is illustrated purely by way of example as a turbofan engine.
  • the gas turbine 10 comprises a fan 12 which is surrounded by an indicated jacket 14.
  • the fan 12 is followed by a compressor 16, which is received in an indicated inner housing 18 and can be designed in one or more stages.
  • the combustion chamber 20 adjoins the compressor 16. Hot exhaust gas flowing out of the combustion chamber then flows through the adjoining turbine 22, which can be designed in one or more stages.
  • the turbine 22 comprises a high-pressure turbine 24 and a low-pressure turbine 26.
  • a hollow shaft 28 connects the high-pressure turbine 24 to the compressor 16, in particular a high-pressure compressor 29, so that these are driven or rotated together.
  • a further inner shaft 30 in the radial direction TRR of the turbine connects the low-pressure turbine 26 to the fan 12 and to a low-pressure compressor 32 here, so that these are driven or rotated together.
  • a thrust nozzle 33 which is only indicated here, adjoins the turbine 22.
  • an intermediate turbine housing 34 is arranged between the high-pressure turbine 24 and the low-pressure turbine 26 and is arranged around the shafts 28, 30. In its radially outer region 36, the intermediate turbine housing 34 has hot exhaust gases from the high-pressure turbine 24 flowing through it. The hot exhaust gas then passes into an annular space 38 of the low-pressure turbine 26.
  • Rotor blade rings 27 of the compressors 28, 32 and the turbines 24, 26 are shown by way of example.
  • guide vane rings 31 are shown by way of example only in the case of the compressor 32.
  • adjustable guide vanes which, for example, can be part of an overall adjustable guide vane ring 31.
  • adjustable guide vane rings 31 can also be provided in other compressors or possibly also in turbines, even if this is shown in FIG Fig. 1 is shown only as an example for the compressor 32.
  • Fig. 2 shows in a schematic perspective illustration a connecting device 50 for an adjustable guide vane of a gas turbine.
  • the guide vane 51 only partially indicated here by dashed lines, adjoins a pin element 52 in the axial direction AR of the connecting device 50, which in FIG Fig. 2 is only partially shown.
  • the pin element 52 and the associated vane 51, in particular the guide vane, are usually connected to one another in one piece.
  • the connecting device 50 comprises a lever element 54.
  • the lever element 54 is shown in FIG Fig. 2 (and in Fig. 1 ) is only partially shown, the lever element 54 being illustrated cut off at 56.
  • the lever element 54 is set up to rotate the pin element 52 about the pin rotation axis ZD parallel to the axial direction AR when the connecting device 50 is in an assembled state.
  • the pin element 52 has a pin receptacle 60 at its axial end 58 facing away from the blade 51.
  • the pin receptacle is designed in particular as a slot.
  • the lever element 54 has a sleeve-like coupling section 62.
  • the coupling section 62 and the pin element 52 are in particular arranged concentrically to one another.
  • a lever receptacle 66 is formed in an axial edge section 64 of the coupling section 62.
  • the lever receptacle 66 is formed in particular by two diametrically opposite lever receptacle sections 66a, 66b.
  • a positioning element 68 is received in the lever receptacle 66 and the pin receptacle 60.
  • the positioning element 68 serves to align the pin element 52 and the lever element 54 with respect to one another in relation to the circumferential direction UR of the connecting device 50.
  • the lever receptacle 66 or the lever receptacle sections 66a, 66b and the pin receptacle 60 are aligned with one another so that the positioning element 68 is received in the lever receptacle 66 and the pin receptacle 60.
  • the positioning element 68 is designed in particular as a plate-like or flat-bar-like component.
  • the positioning element 68 can also be referred to as a feather key.
  • the connecting device 50 also has a tensioning element 70, which is shown in FIG Fig. 3 alone and in Fig. 1 is shown together with other components of the connecting device 50.
  • the tensioning element 70 has a plurality of tensioning sections 74a, 74b, 74c at its axial end 72 facing the blade 51.
  • the clamping element 70 has four clamping sections, of which, however, in the Fig. 1 and 3 only the three clamping sections 74a, 74b, 74c are visible. It should be noted that the tensioning element 70 could also have a different number of tensioning sections, for example six or eight.
  • a respective recess 76a and 76b is provided between two adjacent clamping sections 74a, 74b and 74a, 74c.
  • the clamping sections 74a, 74b, 74c are, in particular, elastically movable or deflectable in the radial direction, in particular towards and away from the pin element 52.
  • the recess 76b and a further recess diametrically opposite it, which in the selected representation of the Fig. 3 is not visible, are dimensioned in such a way that they form a clamping receptacle 78 in which the positioning element 68 can be received during the assembly of the connecting device 50 or is received in the assembled state of the connecting device 50.
  • the clamping sections 74a, 74b, 74c have a respective outer contact surface 80.
  • the contact surfaces 80 are designed to be conical along the axial direction AR.
  • the clamping element 70 has a changing diameter in the area of its clamping sections 74a, 74b, 74c.
  • the outer contact surfaces 80 are in contact with a radially inner contact surface 82 of the lever element 54.
  • the radially inner contact surface 82 is arranged in particular in the region of the coupling section 62.
  • the radially inner contact surface 82 can have a conical shape.
  • the sleeve-like coupling section 62 has a changing inner diameter in the area of the inner contact surface 82.
  • the radially outer contact surface 80 of the clamping sections 74a, 74b, 74c and the radially inner contact surface 82 of the coupling section 62 are designed to be complementary to one another.
  • the inner diameter or inner radius of the coupling section 62 and the outer diameter of all clamping sections 74a, 74b, 74c or the outer radius of the clamping sections 74a, 74b, 74c increase in the direction of the blade 51 ( Fig. 2 ) to.
  • the clamping element 70 has a threaded section 84 axially adjoining the clamping sections 74a, 74b, 74c.
  • the threaded portion 84 has an in the Figures 1 and 3 external thread, not shown.
  • a nut 86 can be or is connected to the threaded section 84, as shown in FIG Fig. 1 is shown.
  • a locking sleeve 88 is arranged in the axial direction between the nut 86 and the lever element 54, in particular the clamping section 62. A force exerted by the nut 86 in the axial direction AR is transmitted to the securing sleeve 88 and the coupling section 62.
  • FIG. 2 The assembled state of the connecting device 50 shown in FIG Fig. 5 in a sectional view approximately corresponding to the section line VV of Fig. 1 shown.
  • the connecting device 50 is in an outer region of structural components 90 of a gas turbine 10 ( Fig. 1 ), in particular aircraft gas turbine attached.
  • the structural components 90 can for example be part of an inner housing 18, as shown in FIG Fig. 1 is illustrated.
  • the same reference numerals are used as in Figures 2 to 4 in order to designate the same elements, even if these are not necessarily with reference to the Fig. 5 be described again. In this respect, the previous description of Figs. 2 to 4 also in conjunction with the Fig. 5 can be read and understood.
  • Fig. 5 the lever element 54 is shown completely (not cut off).
  • the lever element 54 has a further coupling section 92 at its end facing away from the connecting device 50.
  • the coupling section 92 is connected to an adjustment device 94.
  • the adjustment device 94 comprises an adjustment ring 96 and a plurality of adjustment pins 98.
  • the adjustment pins 98 and the adjustment ring 96 can be moved back and forth along a turbine circumference. This translational adjustment movement along the circumferential direction of the turbine causes the lever element 54 to pivot about the axis of rotation ZD of the pin element 52.
  • a blade 51 connected to the pin element 52 ( Fig. 2 ) can be rotated to a desired position.
  • the tensioning element 70 of the connecting device 50 rests on a guide sleeve 100.
  • the guide sleeve also forms a radial bearing for the journal element 52.
  • the axial direction AR of the connecting device corresponds to a radial direction TRR of the gas turbine in relation to the gas turbine.
  • Fig. 6 shows an enlarged area approximately corresponding to the dashed area VI of FIG Fig. 5 .
  • the Fig. 6 serves in particular to describe the proportions of the positioning element 68 to other elements.
  • the positioning element 68 has a length VL extending in the radial direction RR.
  • the length VL of the positioning element 68 is selected such that it is somewhat smaller than the diameter DK of the essentially circular coupling section 62 or the outer diameter of the axial edge section 64, which is annular.
  • the positioning element 68 has a width VB which is smaller than the axial extent or depth ZT of the pin receptacle 60.
  • the width VB of the positioning element 68 is also selected such that it is smaller than the axial extent or depth HT of the lever receptacle 66 or of the individual lever receptacle sections 66a, 66b.
  • the securing sleeve 88 has an edge section 102 which has an axial length which is greater than the width of the positioning element 68.
  • the edge section 102 rests with its axially lower end on an outer circumference of the coupling section 62. This ensures that the positioning element 68 cannot be removed from the connecting device 50 in the radial direction.
  • the positioning element 68 is received essentially without force transmission in the assembled state of the connecting device 50.
  • the positioning element 68 does not transmit any rotational movements introduced by the lever element 54 to the pin element 52.
  • the forces acting in the axial direction AR by the nut 86 are transmitted via the locking sleeve 88, the lever element 54 or its coupling section 62 on the clamping element 70 or its clamping sections 74a to 74d, so that the clamping sections 74a to 74d are pressed against the pin element 52.
  • the positioning element 68 is dimensioned in such a way that, when the connecting device 50 is assembled, it enables the pin element 52, lever element 54 and tensioning element 70 to be correctly positioned relative to one another, in particular in the circumferential direction UR of the connecting device 50, but that it is not included in the power transmission path when it is assembled State of the connecting device 50 a non-positive connection between the lever element 54 and the pin portion 52 is established.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Control Of Turbines (AREA)

Claims (14)

  1. Dispositif de raccordement (50) d'une aube réglable (51) d'une turbine à gaz (10), notamment d'une turbine à gaz d'avion, comprenant :
    un élément formant tenon (52) raccordé à une aube respective (51) ;
    un élément de levier (54) raccordé à l'élément formant tenon (52), l'élément de levier (54) et l'élément formant tenon (52) pouvant être déplacés ensemble autour d'un axe de rotation formant tenon (ZD) ;
    un élément de serrage (70) étant disposé entre l'élément de levier (54) et l'élément formant tenon (52) de sorte qu'un raccord à force entre l'élément formant tenon (52), l'élément de serrage (70) et l'élément de levier (54) peut être réalisé ou est réalisé,
    caractérisé en ce que
    l'élément de levier (54), l'élément de serrage (70) et l'élément formant tenon (52) sont alignés les uns par rapport auxautres au moyen d'un élément de positionnement (68), l'élément de positionnement (68) étant logé dans un logement de tenon (60) et un logement de levier (66, 66a, 66b).
  2. Dispositif de raccordement selon la revendication 1, dans lequel l'élément de serrage (70) présente plusieurs évidements (76a, 76b) le long de sa circonférence, de sorte qu'une section de serrage respective mobile élastiquement (74a-d) est formée entre des évidements adjacents (76a, 76b).
  3. Dispositif de raccordement selon la revendication 1 ou 2, dans lequel au moins deux évidements diamétralement opposés (76a) disposés dans l'élément de serrage (70) sont dimensionnés de manière à former un logement de serrage (78) dans lequel est logé l'élément de positionnement (68).
  4. Dispositif de raccordement selon la revendication 2 ou 3, dans lequel les sections de serrage (74a-d) sont réalisées de manière à présenter une surface de contact externe conique (80).
  5. Dispositif de raccordement selon l'une des revendications précédentes, dans lequel le logement de tenon (60) et le logement de levier (66, 66a, 66b) sont disposés en affleurement l'un avec l'autre.
  6. Dispositif de raccordement selon l'une des revendications précédentes, dans lequel le logement de tenon (60) est réalisé dans une section d'extrémité axiale (58) de l'élément formant tenon (52).
  7. Dispositif de raccordement selon l'une des revendications précédentes, dans lequel le logement de levier (66, 66a, 66b) est formé par deux sections de logement de levier diamétralement opposées (66a, 66b) l'une à l'autre.
  8. Dispositif de raccordement selon l'une des revendications précédentes, dans lequel l'élément de levier (54) présente une section d'accouplement en forme de manchon (62), la section d'accouplement (62) et l'élément formant tenon (52) étant disposés concentriquement l'un par rapport à l'autre.
  9. Dispositif de raccordement selon la revendication 8, dans lequel le logement de levier (60, 60a, 60b) est réalisé dans une section de bord axiale (64) de la section d'accouplement (62).
  10. Dispositif de raccordement selon la revendication 8 ou 9, dans lequel la section d'accouplement (62) présente une surface de contact intérieure radiale (82) qui est réalisée en forme conique.
  11. Dispositif de raccordement selon l'une des revendications 8 à 10, comportant un manchon de fixation (88) disposé sur la section d'accouplement (62) dans la direction axiale (AR).
  12. Dispositif de raccordement selon la revendication 10, comportant au moins les caractéristiques de la revendication 4, dans lequel la surface de contact (82) de la section d'accouplement (62) de l'élément de levier (54) et les surfaces de contact (80) des sections de serrage (74a-d) reposent les unes contre les autres et peuvent être serrées ou sont serrées réciproquement.
  13. Dispositif de raccordement selon l'une des revendications précédentes, dans lequel l'élément de positionnement (68), dans l'état assemblé du dispositif de raccordement (50), est logé sans transmission de force.
  14. Turbine à gaz (10), notamment turbine à gaz d'avion, comportant plusieurs aubes réglables (51), notamment des aubes directrices, disposées les unes à côté des autres dans la direction circonférentielle, un dispositif de raccordement (50) selon l'une des revendications précédentes étant disposé sur chaque aube, et les éléments de levier (54) des dispositifs de raccordement (50) étant accouplés à une bague de réglage (96) mobile le long de la direction circonférentielle de la turbine à gaz (10).
EP19156113.3A 2018-02-09 2019-02-08 Dispositif de raccordement pour une aube réglable d'une turbine à gaz Active EP3524781B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018202082.5A DE102018202082A1 (de) 2018-02-09 2018-02-09 Verbindungseinrichtung für eine verstellbare Schaufel einer Gasturbine

Publications (2)

Publication Number Publication Date
EP3524781A1 EP3524781A1 (fr) 2019-08-14
EP3524781B1 true EP3524781B1 (fr) 2020-09-09

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EP19156113.3A Active EP3524781B1 (fr) 2018-02-09 2019-02-08 Dispositif de raccordement pour une aube réglable d'une turbine à gaz

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US (1) US11125115B2 (fr)
EP (1) EP3524781B1 (fr)
DE (1) DE102018202082A1 (fr)

Cited By (1)

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DE102021120382A1 (de) 2021-08-05 2023-02-09 MTU Aero Engines AG Verbindungseinrichtung einer verstellbaren Schaufel einer Gasturbine und Gasturbine

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DE102018202494A1 (de) * 2018-02-19 2019-08-22 MTU Aero Engines AG Lagerkammergehäuse für eine strömungsmaschine
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US11834966B1 (en) 2022-12-30 2023-12-05 Rolls-Royce North American Technologies Inc. Systems and methods for multi-dimensional variable vane stage rigging utilizing adjustable alignment mechanisms
US11982193B1 (en) 2022-12-30 2024-05-14 Rolls-Royce North American Technologies Inc. Systems and methods for multi-dimensional variable vane stage rigging utilizing adjustable inclined mechanisms
US12000293B1 (en) 2022-12-30 2024-06-04 Rolls-Royce North American Technologies Inc. Systems and methods for multi-dimensional variable vane stage rigging utilizing coupling mechanisms

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EP3524781A1 (fr) 2019-08-14
US20190249572A1 (en) 2019-08-15
DE102018202082A1 (de) 2019-08-14
US11125115B2 (en) 2021-09-21

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