EP3523507A1 - Assemblage d'anneau mobile de turbine de turbomachine - Google Patents
Assemblage d'anneau mobile de turbine de turbomachineInfo
- Publication number
- EP3523507A1 EP3523507A1 EP17786988.0A EP17786988A EP3523507A1 EP 3523507 A1 EP3523507 A1 EP 3523507A1 EP 17786988 A EP17786988 A EP 17786988A EP 3523507 A1 EP3523507 A1 EP 3523507A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- movable ring
- ferrule
- upstream
- ring assembly
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
- F01D5/066—Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps
-
- 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
- F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/005—Sealing means between non relatively rotating elements
- F01D11/006—Sealing the gap between rotor blades or blades and rotor
-
- 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
- F01D11/006—Sealing the gap between rotor blades or blades and rotor
- F01D11/008—Sealing the gap between rotor blades or blades and rotor by spacer elements between the blades, e.g. independent interblade platforms
-
- 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
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
- F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3069—Fixing blades to rotors; Blade roots ; Blade spacers between two discs or rings
-
- 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
- F05D2260/31—Retaining bolts or nuts
Definitions
- the invention relates to a turbomachine turbine moving ring assembly.
- FIG. 1 represents an example of a turbine part of a turbomachine known from the state of the art.
- the turbine 10 consists of a distributor formed of a plurality of vanes
- the rotor disks of the turbine 20a, 20b, 20c, 20d, 20e are centered on the longitudinal axis XX and are generally assembled together by means of upstream and downstream ferrules 22 which are fixed together by bolted connections 26 passing through. fastening flanges 221 and 241. This disk assembly is itself connected to a turbine shaft (not shown) to be rotated.
- a mobile ring 28 carrying radial wipers 32 is disposed at the junction between each successive rotor disc, opposite the corresponding fixed blade 12.
- Some mobile rings 28 may also comprise an upstream flange 31 ensuring the retention of a retaining ring 27 bearing against the blisk (20a, 20b) upstream of the movable ring.
- each movable ring 28 cooperates with the inner annular surface of the fixed blade 12 opposite said ring 28 and thus provide sealing between the upstream cavity and the downstream cavity of the turbine.
- FIG. 2 constitutes an enlargement of the outer annular portion of the bolted connection 26 between the fastening flanges 241 of the downstream ferrule 24 of an upstream disk, 221 of the upstream ferrule 22 of a downstream disk, and 442 of the movable ring 28 disposed between the upstream disk and the downstream disk.
- the vertical arrow illustrates the direction and direction of the mechanical stresses resulting from the thermal gradient in the moving ring 28 which is deformed. This results in a creep of said movable ring 28.
- the horizontal arrows represent the flange opening phenomenon 241 and 221 which accompanies creep.
- One of the aims of the invention is to increase the service life of turbomachine turbines by limiting the opening phenomenon of flanges at the junction between the successive rotor disks.
- Another object of the invention is to allow better mechanical strength of the junction flanges of successive turbomachine turbine rotor discs subjected to high thermal stresses.
- Another object of the invention is to ensure the cooling of the junction cells between the rotor disks and the turbine blades.
- Another object of the invention is to ensure sealing between the upstream and downstream cavities of the turbine.
- Another object of the invention is to ensure the retention of retaining rings at the junction between blade and rotor disk.
- Another object of the invention is to simplify the maintenance of turbomachine turbines.
- the invention relates to a turbomachine turbine moving ring assembly which is mounted between two rotor disks and successive of said turbine, said rotor disks and being fixed to one another by bolting characterized in that it comprises:
- a fixing ferrule fixed between the upstream and downstream discs, by bolting them, and a piece forming a mobile ring, said piece carrying radial sealing wipers and being fixed between the upstream disc and the ferrule.
- the mobile ring assembly according to the invention may further comprise at least one of the following features:
- the ferrule comprises at least one lunule above the bolted connection
- the ferrule comprises a plurality of lunules distributed periodically at a tangential surface portion downstream of the ferrule
- the movable ring assembly comprises a set of grooves and tenons ensuring the anti-rotation of the mobile ring by relative to the ferrule
- the grooves are arranged in the movable ring and the tenons extend from the ferrule
- grooves of the movable ring are disposed in an anti-rotation flange extending from an inner annular surface of the movable ring, and periodically distributed over an annular area of said flange remote from the inner annular surface of the movable ring,
- the movable ring further comprises an upstream annular flange s extending from an upstream tangential surface portion of the movable ring and maintaining a retaining ring bearing against the upstream blisk
- a stop for holding the mobile ring said stop comprising a hook cooperating with a bore
- the hook is formed on the mobile ring and the bore is formed in the shell, and - The hook is formed on the shell and the bore is formed in the movable ring.
- the invention also relates to a turbomachine, comprising an assembly according to the foregoing description.
- the proposed turbomachine turbine moving ring assembly solution dissociates the outer annular portion of moving rings from the bolted connection so that the movable ring is no longer exposed to the temperature gradient.
- the disk flanges undergo greatly reduced stresses and their lifetime is significantly increased.
- the proposed solution preserves the initial functions of the mobile rings. Indeed, the seal between the upstream cavity and the downstream cavity is provided by the wipers.
- the ventilation of the bottom of the cell of the downstream disk is still permitted thanks to the lunules formed in the inner annular portion of the ferrules.
- the downstream holding flange is still resting against the junction between the disk and the downstream blade, and, if present, the upstream holding flange keeps the retaining ring pressed against the bladed upstream disk.
- FIG. 1 already described, shows a turbine part of a turbomachine known from the state of the art
- FIG. 2 already described also, illustrates a phenomenon of opening flanges at a bolted connection of turbomachine turbine rotor disks
- FIG. 4a is a perspective view of a movable ring assembly according to the invention without the bolted connection and the rotor disk;
- FIG. 4a is a perspective view of an embodiment of the invention. downstream
- FIG. 4b is a view in another perspective of the same assembly as FIG. 4a
- FIG. 5a is a sectional view of a first embodiment of the assembly according to the invention comprising a holding stop
- FIG. 5b is a sectional view of a second embodiment of the assembly according to the invention comprising a retaining stop
- FIG. 5c is a sectional view of a third embodiment of the assembly. according to the invention comprising a retaining stop.
- FIGS. 3, 4a and 4b show a turbomachine turbine ring assembly 4 which comprises:
- This assembly 4 is disposed between an upstream rotor disk 20a and a downstream rotor disk 20b and connected thereto via a bolted connection 26.
- the bolted connection 26 engages an attachment flange 442 of the ferrule 44, an attachment flange 241 of a downstream barrel 24 extending from an outer annular portion of the upstream disk 20a, and a fastening flange 221. an upstream ferrule 22 extending from an outer annular portion of the downstream disk 20b.
- This assembly seals between the upstream cavity and the downstream cavity, allows the ventilation of the downstream rotor disk 20b and maintains a retaining ring 27 in abutment against the upstream bladed disk 20a.
- the movable ring 42 is a part of revolution about an axis XX of the turbomachine. It comprises a downstream annular flange 30 bearing against a socket 18 of the rotor downstream rotor disc 20b.
- the outer and inner annular surfaces of this flange have been referenced 301 and 302.
- the end 303 of the flange 30, bearing against the cell 18, may further comprise an annular groove 304 configured to receive an annular seal 305.
- the annular seal 305 may be in DMD0415 (HS25).
- the space 60 is particularly useful for ventilation of the downstream disk 20b, as will be described more precisely later.
- Radial sealing wipers 32 extend from the outer surface
- the mobile ring 42 may further comprise an upstream annular flange 31 which extends from a flange 420 of the movable ring 42. This upstream annular flange bears against the retaining ring 27 in order to maintain it against the upstream bladed disc 20a.
- the retaining ring 27 has the function of axially retaining the blades 16.
- the movable ring 42 is shrunk, at its base, on the downstream shell 24 of the upstream rotor disk 20a.
- connection between the movable ring 42 and the upstream rotor disk 20a can also be used for anti-rotation of the various parts of the assembly 4 relative to each other.
- the movable ring 42 comprises an annular so-called anti-rotation flange 50 extending radially inwardly from the inner radial annular surface 302 of the ring, and having a series of grooves 52 extending radially inwards, periodically around the flange 50.
- the function of the flange 50 and the grooves 52 will be detailed later.
- the ferrule 44 comprises on its upstream surface (surface 440) a circumferential groove 45 configured to receive the annular seal 46.
- This seal 46 is put in compression between the flange 420 of the movable ring 42 and the ferrule 44 by the bolted connection 26.
- the seal 46 ensures the continuity of the seal between the upstream and downstream cavities of the turbine.
- the seal 46 since the seal 46 is at the interface between two parts with very different temperatures, it is now up to it to be subjected to a high thermal gradient. Therefore the seal 46 may be in DMD0415 (HS25).
- the shell 44 also has, on the downstream side (surface 441), one or more cooling lobes 43 disposed above the bolted connection 26, for example a series of circumferential lunules 43 regularly distributed at a portion of downstream tangential surface 441.
- These lobes 43 allow a fresh air flow taken upstream of the turbine and circulating through each bolted connection 26. This fresh air flowing from the upstream of the turbine is able to pass through the lunula 43 to the cavity of air diffusion 60 before diffusing into each cell 18 of the disk 20b to ventilate.
- the fixing ferrule 44 terminates below said lunules 43 by an attachment flange 442 which is configured to allow the ferrule 44 to be fastened in the bolted connection 26.
- the flange 442 has a series of periodically distributed openings. and intended to come opposite a series of similar openings made respectively in the flanges 241 and 221 of downstream ferrules 24 of the upstream disk 20a and upstream 22 of the downstream disk 20b.
- the shell 44 may comprise a series of anti-rotation pins 54 which protrude from the remainder of said ferrule 44. These studs are spaced periodically around the shell 44 of so as to be facing grooves 52 that has the flange 50 of the movable ring 42 ( Figures 4a and 4b).
- the grooves 52 and pins 54 are configured to cooperate with each other all around the ring 42 and the ferrule 44 respectively. They therefore have substantially complementary forms.
- the movable ring 42 being dissociated from the bolted connection 26, these grooves 52 and tenons 54 ensure the locking in rotation of the different parts and the mechanical cohesion of the assembly 4.
- the groove-tenon system described above can ensure the centering of the ring 42 in the assembly 4 in the event of loss of the hooping of the ring 42.
- the rotational stop may be enabled by a system of grooves-tenons made at the interface between the movable ring 42 and the downstream shell 24 of the upstream disk 20a.
- the annular flange 50 is fretted on the outer annular portion of the ferrule 44.
- the assembly 4 further comprises a holding abutment 41 configured to ensure the stability of the movable ring 42 in operation, especially in case of loss of the hooping of the ring 42. Indeed, the assembly 4 undergoes major centrifugal stresses due to the rotation of the movable wheel. It is therefore essential to guarantee the mechanical coherence of the assembly 4, whatever the operating conditions.
- the holding abutment 41 may take the form of a hook 410 formed by the lower end of the ring 42, and extending upstream so as to cooperate with a bore 412, of complementary shape to that of the hook 410, and formed in the downstream end of the downstream ferrule 24.
- the hook 410 cooperates with a bore 412 formed in the upstream portion 440 of the shell 44, for example under the circumferential groove 45 accommodating the seal 46.
- the hook 410 is formed by the upper end of the shell 44, and also extends upstream so as to cooperate with a bore 412, of complementary shape to that of the hook 410, and formed in the downstream portion of the flange 420 of the ring 42.
- the shape and the dimensions of the hook 410 and the bore 412 can vary according to the intensity of the desired maintenance, but also considerations of ease of assembly, for example for maintenance. It is thus possible to size the bore 412 slightly more than the hook 410, so as to leave a margin of operation before contacting the stop 41 so as not to immediately pull the flange 442.
- the hook 410 may advantageously be fretted in the bore 412, so as to promote the retention offered by the stop 41.
- the holding abutment 41 may also comprise several hooks 410 formed on the ring 42 or the ferrule 44, and cooperating with several corresponding bores 412.
- the hook 410 and the bore 412 may be formed of revolution about the longitudinal axis X-X, or be formed only on successive angular portions, evenly distributed or not, about the longitudinal axis X-X.
- the assembly 4 is made more robust, especially in case of shrinkage losses of the mobile ring 42. Mechanical strength and increase in service life
- the proposed assembly therefore allows an increase in the life of turbomachine turbine by reducing the phenomenon of opening flanges at the bolted connections that connect the different turbine rotor discs.
- turbomachines comprising an assembly of the type of the assembly 4 which has just been described is improved. This results in an increase in their life.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1659685A FR3057300B1 (fr) | 2016-10-07 | 2016-10-07 | Assemblage d'anneau mobile de turbine de turbomachine |
| PCT/FR2017/052746 WO2018065739A1 (fr) | 2016-10-07 | 2017-10-06 | Assemblage d'anneau mobile de turbine de turbomachine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3523507A1 true EP3523507A1 (fr) | 2019-08-14 |
| EP3523507B1 EP3523507B1 (fr) | 2020-06-24 |
Family
ID=57963254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17786988.0A Revoked EP3523507B1 (fr) | 2016-10-07 | 2017-10-06 | Assemblage d'anneau mobile de turbine de turbomachine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10920593B2 (fr) |
| EP (1) | EP3523507B1 (fr) |
| CN (1) | CN109844264B (fr) |
| FR (1) | FR3057300B1 (fr) |
| WO (1) | WO2018065739A1 (fr) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3318723B1 (fr) * | 2016-11-04 | 2021-01-13 | Siemens Aktiengesellschaft | Anneau d'étanchéité d'un rotor et rotor |
| FR3086328B1 (fr) * | 2018-09-20 | 2021-01-01 | Safran Aircraft Engines | Turbine a aubes retenues axialement, pour turbomachine |
| IT201900014739A1 (it) * | 2019-08-13 | 2021-02-13 | Ge Avio Srl | Elementi di trattenimento delle pale per turbomacchine. |
| FR3106153B1 (fr) * | 2020-01-10 | 2022-01-28 | Safran Aircraft Engines | Dispositif pour le désengagement de turbine en survitesse de turbomachine |
| FR3108361B1 (fr) * | 2020-03-19 | 2023-05-12 | Safran Aircraft Engines | Roue de turbine pour une turbomachine d’aéronef |
| FR3108938B1 (fr) | 2020-04-02 | 2022-03-04 | Safran Aircraft Engines | Anneau d’étanchéité pour un rotor de turbine de turbomachine |
| FR3111157B1 (fr) * | 2020-06-05 | 2022-07-22 | Safran Aircraft Engines | Moteur comprenant un organe d’étanchéité entre deux éléments de rotor |
| FR3120092A1 (fr) * | 2021-02-24 | 2022-08-26 | Safran Aircraft Engines | Anneau d’étanchéité de turbine |
| FR3120894B1 (fr) * | 2021-03-19 | 2023-02-24 | Safran Aircraft Engines | Rotor de turbomachine, comprenant un anneau de joint a labyrinthe monte sur des viroles de disque |
| US11821320B2 (en) | 2021-06-04 | 2023-11-21 | General Electric Company | Turbine engine with a rotor seal assembly |
| US12270304B2 (en) | 2021-07-26 | 2025-04-08 | General Electric Company | Turbine engine with a floating seal assembly |
| FR3128243B1 (fr) * | 2021-10-14 | 2025-01-31 | Safran Aircraft Engines | Distributeur de turbine comportant un élément annulaire d’étanchéité |
| US11933221B2 (en) * | 2021-10-21 | 2024-03-19 | Rtx Corporation | Tongue joint including mating channel for cooling |
| FR3131599B1 (fr) | 2022-01-04 | 2023-12-15 | Safran Aircraft Engines | Assemblage d’une virole et d’un anneau |
| US12000289B2 (en) | 2022-03-10 | 2024-06-04 | General Electric Company | Seal assemblies for turbine engines and related methods |
| US12123306B2 (en) | 2022-06-28 | 2024-10-22 | General Electric Company | Seal assemblies for turbine engines and related methods |
| FR3145771B1 (fr) * | 2023-02-14 | 2025-02-21 | Safran Aircraft Engines | Assemblage de disques pour turbine basse pression équipé d’une bague d’étanchéité encochée |
| FR3145770B1 (fr) * | 2023-02-14 | 2025-02-21 | Safran Aircraft Engines | Assemblage de disques pour turbine basse pression équipé d’une éclisse d’étanchéité |
| US12006829B1 (en) | 2023-02-16 | 2024-06-11 | General Electric Company | Seal member support system for a gas turbine engine |
| US12486779B2 (en) | 2023-03-08 | 2025-12-02 | General Electric Company | Seal support assembly for a turbine engine |
| US12595745B2 (en) | 2023-03-24 | 2026-04-07 | General Electric Company | Seal support assembly for a turbine engine |
| US12116896B1 (en) | 2023-03-24 | 2024-10-15 | General Electric Company | Seal support assembly for a turbine engine |
| US12241375B2 (en) | 2023-03-24 | 2025-03-04 | General Electric Company | Seal support assembly for a turbine engine |
| US12372002B2 (en) | 2023-03-24 | 2025-07-29 | General Electric Company | Seal support assembly for a turbine engine |
| US12416243B2 (en) | 2023-03-24 | 2025-09-16 | General Electric Company | Seal support assembly for a turbine engine |
| US12215587B2 (en) | 2023-03-24 | 2025-02-04 | General Electric Company | Seal support assembly for a turbine engine |
| US12421861B2 (en) | 2023-03-24 | 2025-09-23 | General Electric Company | Seal support assembly for a turbine engine |
| US12215588B2 (en) | 2023-03-27 | 2025-02-04 | General Electric Company | Seal assembly for a gas turbine engine |
| FR3147834B1 (fr) * | 2023-04-14 | 2025-10-03 | Safran Aircraft Engines | Ensemble rotorique de turbine pour turbomachine |
| US12326089B2 (en) | 2023-04-24 | 2025-06-10 | General Electric Company | Seal assembly for a gas turbine engine |
| US12584415B2 (en) | 2024-05-03 | 2026-03-24 | General Electric Company | Turbine engine seal for turbine engines |
| FR3162785A1 (fr) * | 2024-06-04 | 2025-12-05 | Safran Aircraft Engines | Anneau mobile lesté pour turbine à gaz |
| FR3164744A1 (fr) * | 2024-07-22 | 2026-01-23 | Safran Aircraft Engines | Procede de fixation d’au moins deux disques d’un rotor d’une turbomachine |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5080556A (en) * | 1990-09-28 | 1992-01-14 | General Electric Company | Thermal seal for a gas turbine spacer disc |
| FR2712029B1 (fr) * | 1993-11-03 | 1995-12-08 | Snecma | Turbomachine pourvue d'un moyen de réchauffage des disques de turbines aux montées en régime. |
| JPH09242563A (ja) * | 1996-03-11 | 1997-09-16 | Hitachi Ltd | ガスタービン冷却システム |
| US6261063B1 (en) | 1997-06-04 | 2001-07-17 | Mitsubishi Heavy Industries, Ltd. | Seal structure between gas turbine discs |
| FR2825748B1 (fr) * | 2001-06-07 | 2003-11-07 | Snecma Moteurs | Agencement de rotor de turbomachine a deux disques aubages separes par une entretoise |
| FR2868814B1 (fr) * | 2004-04-09 | 2009-12-18 | Snecma Moteurs | Dispositif d'assemblage de brides annulaires, en particulier dans une turbomachine |
| FR2928963B1 (fr) * | 2008-03-19 | 2017-12-08 | Snecma | Distributeur de turbine pour une turbomachine. |
| FR2937371B1 (fr) * | 2008-10-20 | 2010-12-10 | Snecma | Ventilation d'une turbine haute-pression dans une turbomachine |
| FR2939836B1 (fr) * | 2008-12-12 | 2015-05-15 | Snecma | Joint d'etancheite de plateforme dans un rotor de turbomachine |
| US8221062B2 (en) * | 2009-01-14 | 2012-07-17 | General Electric Company | Device and system for reducing secondary air flow in a gas turbine |
| FR2946083B1 (fr) * | 2009-05-28 | 2011-06-17 | Snecma | Turbine basse-pression |
| FR2973433A1 (fr) | 2011-04-04 | 2012-10-05 | Snecma | Rotor de turbine pour une turbomachine |
| FR2982635B1 (fr) * | 2011-11-15 | 2013-11-15 | Snecma | Roue a aubes pour une turbomachine |
| FR3006366B1 (fr) * | 2013-05-28 | 2018-03-02 | Safran Aircraft Engines | Roue de turbine dans une turbomachine |
| FR3009336B1 (fr) | 2013-08-05 | 2015-09-04 | Snecma | Ensemble rotatif de turbomachine muni d'une virole labyrinthe cmc |
| FR3020408B1 (fr) * | 2014-04-24 | 2018-04-06 | Safran Aircraft Engines | Ensemble rotatif pour turbomachine |
| FR3021348B1 (fr) | 2014-05-20 | 2016-06-10 | Snecma | Rotor de turbine pour un moteur a turbine a gaz |
| US20170226861A1 (en) | 2014-10-15 | 2017-08-10 | Safran Aircraft Engines | Rotary assembly for a turbine engine comprising a self-supported rotor collar |
-
2016
- 2016-10-07 FR FR1659685A patent/FR3057300B1/fr active Active
-
2017
- 2017-10-06 EP EP17786988.0A patent/EP3523507B1/fr not_active Revoked
- 2017-10-06 US US16/339,801 patent/US10920593B2/en active Active
- 2017-10-06 CN CN201780062161.5A patent/CN109844264B/zh active Active
- 2017-10-06 WO PCT/FR2017/052746 patent/WO2018065739A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3057300B1 (fr) | 2018-10-05 |
| EP3523507B1 (fr) | 2020-06-24 |
| US10920593B2 (en) | 2021-02-16 |
| FR3057300A1 (fr) | 2018-04-13 |
| CN109844264A (zh) | 2019-06-04 |
| WO2018065739A1 (fr) | 2018-04-12 |
| CN109844264B (zh) | 2021-04-30 |
| US20200040735A1 (en) | 2020-02-06 |
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