EP2372093B1 - Forme du joint d'étanchéité sur la plateforme d'une aube de turbine - Google Patents

Forme du joint d'étanchéité sur la plateforme d'une aube de turbine Download PDF

Info

Publication number
EP2372093B1
EP2372093B1 EP11159847.0A EP11159847A EP2372093B1 EP 2372093 B1 EP2372093 B1 EP 2372093B1 EP 11159847 A EP11159847 A EP 11159847A EP 2372093 B1 EP2372093 B1 EP 2372093B1
Authority
EP
European Patent Office
Prior art keywords
distance
shroud
side edge
longitudinal axis
turbine blade
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
EP11159847.0A
Other languages
German (de)
English (en)
Other versions
EP2372093A1 (fr
Inventor
Andre Saxer
Igor Tsypkaykin
Ulrich Rathmann
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP2372093A1 publication Critical patent/EP2372093A1/fr
Application granted granted Critical
Publication of EP2372093B1 publication Critical patent/EP2372093B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • F01D11/122—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with erodable or abradable material
    • F01D11/125—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with erodable or abradable material with a reinforcing structure
    • 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
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/20—Specially-shaped blade tips to seal space between tips and stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of particular materials
    • 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
    • F05D2250/00—Geometry
    • F05D2250/70—Shape

Definitions

  • the invention relates to a device on a shroud provided on a turbine blade tip, with a radially to the axis of rotation about which the turbine blade is rotatably disposed, the shroud locally superior, ridge-like trained sealing structure having an oriented in the direction of rotation of the turbine blade longitudinal extent, itself has tapered with increasing radial distance to the shroud and one of the turbine blade radially facing away, flat-shaped end face.
  • Turbine blades are usually provided with a shroud at their turbine blade tips which provides a vibration reducing effect on the respective turbine blade and thus contributes to extending the life of the turbine blade.
  • a shroud at their turbine blade tips which provides a vibration reducing effect on the respective turbine blade and thus contributes to extending the life of the turbine blade.
  • at least one of the end-side shroud surface in the radial direction to the rotation axis frontally superior, rib-like sealing structure is provided, which extends in the direction of rotation to the rotational movement of the turbine blades along the shroud.
  • Such sealing structures serve primarily to reduce leakage flow that forms along the flow channel between the turbine blade tips and the stationary turbine housing and that does not contribute to the power gain of the turbine.
  • the foregoing sealing structures are based on abrasive materials and, by rotating the turbine blades and due to their radial superiority to the shrouds, into a turbine wall blade tip radially opposed abradable wall structure on the turbine housing, which is typically formed in a honeycomb structure, forming a circumferential direction extending, groove-shaped recess to be ground in such a way that although the end-side shroud surface includes a minimal gap with the wall structure, however, the rib-like sealing element protrudes almost accurately into the self-machined by the sealing element groove-shaped recess.
  • axial projection thus concludes each blade tip with its, engaging in the groove-shaped recess sealing structure for a flowing axially through the turbine gaseous working fluid largely gas-tight.
  • a cross-sectional shape is axially, that is, provided transversely to the direction of rotation, locally magnifying cutting structure on the cover band radially projecting rib-like sealing structure, which typically has a substantially constant cross-sectional shape in the longitudinal direction, on both axially opposite flanks of the sealing structure in the direction of rotation having facing cutting surfaces.
  • the axially projecting from the sealing structure cutting surfaces assets within the usually designed as a honeycomb structure abreibbaren turbine housing wall in comparison to the rest of the axial sealing structure width founded on the axial sealing structure width, so that the sealing structure can not fit over its entire length to the groove-shaped recess fit and thus by the resulting intermediate gap between the sealing structure and groove-shaped recess can form a metered adjustable leakage current.
  • the rib-like sealing structure provided on the shroud in the radial direction along the turbine blade usually does not coincide with the radial center of gravity of the turbine blade, whereby additional load moments occur, especially at high speeds and high process temperatures, in the connection area between the shroud and the turbine blade increased creep rates and ultimately lead to material failure.
  • Subject of the DE 10 2008 023 424 A1 is a method of extending the life of turbine blades equipped with a tip shroud and generic sealing devices by reducing their mechanical stress during operation.
  • cutting teeth arranged at one end are to be removed and replaced by centrally arranged cutting teeth, in particular arranged inside the blade leaf.
  • the invention has for its object to reduce the problem described above in the creation of larger-sized turbine blades and to optimize the area of the shroud with a sealing structure provided thereon, both in terms of their capacity and in terms of mass reduction.
  • it is necessary to look for measures by which reduces the operational stresses and strains occurring in the turbine blade tip area and thus ultimately the turbine blade life can be significantly increased.
  • the axial width of the sealing structure in the circumferential direction before the above central widening measures only 1/62 S ⁇ f3
  • the improved cutting effect is due to the cutting edges e1 and e2 facing in the direction of rotation, which serve as transition areas between the rib area narrow in the axial extent in the fifth embodiment Surface section with a web width f3 and the axially much wider formed third surface portion with an axial rib width f2 serve.
  • At least the cutting edges e1, e2 are coated with a surface-hard layer, such as, for example, Cr 2 C or CBN (cubic crystalline boron nitride).
  • a surface-hard layer such as, for example, Cr 2 C or CBN (cubic crystalline boron nitride).
  • the coating process is preferably carried out by means of a galvanic deposition, a plasma deposition, a spray deposition or by means of a welding or soldering operation.
  • FIG. 2 is a perspective view of the shroud D of a not further illustrated turbine blade shown for qualitative illustration of the solution formed sealing structure.
  • the sealing structure DS according to the invention is preferably connected in one piece to the shroud D and rises above the shroud D with side edges 1 'to 10' which correspond in each case to the side edges 1 to 10 bordering the end face St.
  • the cutting edge surfaces e1 'and e2' associated with the cutting edges e1 and e2 are provided with the surface hardening layer (11) for improving the cutting action.
  • the cut surface 10 ' may also be provided with a corresponding surface hard layer (11). In a particularly advantageous manner, however, all side edge surface with a corresponding coating, so in particular the end face St, be provided with the surface-hard layer.
  • a longitudinal extent S which corresponds to the oriented in the direction of rotation U shroud length.
  • a plurality of sealing structures DS formed in accordance with the invention can be arranged on the surface of a shroud D, so that they are preferably arranged next to one another in the circumferential direction.
  • the location corresponds to the in FIG. 1 Illustrated longitudinal axis L through the end face St of the solution formed according to rib-like sealing structure at the same time also the radial center of gravity plane of the turbine blade.
  • FIG. 3 is a cross-sectional view taken along in FIG FIG. 2 indicated section plane A shown.
  • the side edges 6 'and 7' each with the orthogonal to the shroud surface an angle ⁇ , ⁇ include, which may typically be in the range between 0.1 ° and 45 °. The same angle of inclination also applies to the side flanks 8 'and 9'.
  • FIG. 4 is a cross-sectional view represented by a cutting contour.
  • a cutting contour it is necessary to provide the entire surface of the cutting contour with a hard surface layer 11. At the very least, it is necessary to coat those surface area of the cutting contour with the surface-hardened layer 11 which comes into engagement with the abradable material on the turbine housing wall.
  • an effective layer thickness Z of 0.1 mm to 4.5 mm on the cutting surface, which has at least one penetration depth P1, with which the cutting contour is able to penetrate into the abradable material.
  • the cutting depth P1 is about 0.5 mm to 15 mm.
  • the layer is thinned over a further region P2 which extends between P1 + 0.5 mm to 15 mm.

Landscapes

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

Claims (12)

  1. Dispositif réalisé sur la virole prévue sur une pointe d'aube mobile de turbine, comprenant une structure d'étanchéité réalisée radialement par rapport à l'axe de rotation autour duquel est disposée à rotation l'aube mobile de turbine, à la manière d'une rangée d'ailettes faisant saillie localement au-delà de la virole, laquelle structure d'étanchéité présente une étendue longitudinale (S) orientée dans la direction périphérique (U) de l'aube mobile de turbine, laquelle étendue longitudinale se rétrécit en s'éloignant radialement de la virole et se termine par une face frontale (St) réalisée sous forme plane et radialement opposée à l'aube mobile de turbine, laquelle face frontale est divisée dans la direction périphérique en sections de surface contiguës (I, II, III, IV, V) qui s'étendent le long d'un axe longitudinal (L) orienté dans la direction périphérique (U) de la manière suivante
    - une première section de surface (I) est limitée par deux arêtes latérales s'étendant parallèlement à l'axe longitudinal, lesquelles possèdent une distance mutuelle f1 et dont une première arête latérale (1) s'étend jusqu'à une distance a1 et une deuxième arête latérale (2) s'étend jusqu'à une distance a2, mesurées depuis un premier plan de référence (B1), qui coupe perpendiculairement l'axe longitudinal (L) et limite la face frontale (St) dans la direction périphérique (U) à l'extrémité arrière, la deuxième arête latérale (2) étant espacée du premier plan de référence (B1) et étant connectée à la première arête latérale (1) par le biais d'une arête de limitation arrière (3) orientée de manière inclinée par rapport à l'axe longitudinal (L),
    - une deuxième section de surface (II) est limitée par deux arêtes latérales (4, 5) s'étendant de manière inclinée par rapport à l'axe longitudinal (L), dont une première arête latérale (4) s'étend depuis la distance a1 jusqu'à la distance b1 et une deuxième arête latérale (5) s'étend depuis la distance a2 jusqu'à la distance b2, à chaque fois mesurées depuis le premier plan de limitation (B1),
    - une troisième section de surface (III) est limitée par deux arêtes latérales (6, 7) s'étendant parallèlement à l'axe longitudinal (L), lesquelles arêtes latérales possèdent une distance mutuelle f2, et dont une première arête latérale (6) est connectée à la première arête latérale (4) de la deuxième section de surface (II) et une deuxième arête latérale (7) est connectée à la deuxième arête latérale (5) de la deuxième section de surface (II),
    - une quatrième section de surface (IV) est limitée par deux arêtes latérales e1, e2 s'étendant de manière inclinée par rapport à l'axe longitudinal (L), que l'on appelle des arêtes de coupe, dont une première arête de coupe (e1) s'étend depuis la distance d1 jusqu'à la distance c1 et une deuxième arête de coupe (e2) s'étend depuis la distance d2 jusqu'à la distance c2, à chaque fois mesurées depuis un deuxième plan de limitation (B2), qui coupe l'axe longitudinal (L) perpendiculairement et qui limite la face frontale (St) dans la direction périphérique (U) à l'extrémité avant,
    - une cinquième section de surface (V) est limitée par deux arêtes latérales (8, 9) s'étendant parallèlement à l'axe longitudinal (L), lesquelles arêtes latérales possèdent une distance mutuelle f3 et dont une première arête latérale (8) s'étend jusqu'à une distance c1 et une deuxième arête latérale (9) s'étend jusqu'à une distance c2, mesurées depuis le deuxième plan de référence (B2), la première arête latérale (8) étant espacée du deuxième plan de référence (B2) et étant connectée à la première arête latérale (9) par le biais d'une arête de limitation avant (10) orientée de manière inclinée par rapport à l'axe longitudinal (L), caractérisé en ce que, pour leurs paramètres géométriques S, a1, a2, b1, b2, c1, c2, d1, d2, f1, f2, f3, on a :
    S = 45 mm à 200 mm
    a1 < a2 et 1/16 S ≤ (a1, a2) ≤ 1/2 S
    b1 < b2 et 1/6 S ≤ (b1, b2) ≤ 1/2 S
    c1 < c2 et 1/16 S ≤ (c1, c2) ≤ 1/2 S
    d1 < d2 et 1/16 S ≤ (d1, d2) ≤ 1/2 S
    f3 < f1 et 1/62 S ≤ (f1, f3) ≤ 1/14 S
    1/42 S ≤ f2 ≤ 1/5 S.
  2. Dispositif selon la revendication 1,
    caractérisé en ce qu'au moins les arêtes de coupe e1 et e2 sont revêtues d'une couche de surface dure (11) et servent de structures de coupe.
  3. Dispositif selon l'une quelconque des revendications 1 ou 2,
    caractérisé en ce qu'à chaque fois les première et deuxième arêtes latérales (1, 2, 6, 7) de la première et de la troisième section de surface sont disposées de manière espacée par rapport à l'axe longitudinal (L), et
    en ce que l'axe longitudinal (L) est aligné avec la première arête latérale (8) de la cinquième section de surface (V).
  4. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que la structure d'étanchéité réalisée à la manière d'une rangée d'ailettes présente des flancs latéraux s'étendant de manière inclinée par rapport à une surface de virole pouvant être associée à la virole, dont les inclinaisons sont à chaque fois tournées l'une vers l'autre et en ce que les flancs latéraux délimitent radialement avec leurs arêtes supérieures la face frontale (St).
  5. Dispositif selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que les première et deuxième arêtes latérales (6, 7) de la troisième section de surface (III) peuvent être associées à chaque fois à des flancs latéraux inclinés par rapport à une surface de virole pouvant être associée à la virole, lesquels flancs latéraux forment respectivement avec la perpendiculaire à la surface de virole un angle d'inclinaison compris entre 0,1° et 45°.
  6. Dispositif selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que l'étendue longitudinale (S) de la structure d'étanchéité réalisée à la manière d'une rangée d'ailettes correspond à la longueur de la virole orientée dans la direction périphérique (U).
  7. Dispositif selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce qu'au moins deux structures d'étanchéité réalisées à la manière d'une rangée d'ailettes sont montées sur une virole d'une aube mobile de turbine.
  8. Dispositif selon la revendication 7,
    caractérisé en ce que les au moins deux structures d'étanchéité sont montées dans la direction périphérique l'une à côté de l'autre sur la virole de l'aube mobile de turbine.
  9. Dispositif selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que la structure d'étanchéité réalisée à la manière d'une rangée d'ailettes est pourvue d'un revêtement de surface dur (11) au moins dans des régions partielles superficielles.
  10. Dispositif selon la revendication 9,
    caractérisé en ce que la couche de surface dure (11) présente une épaisseur de couche de jusqu'à 4,5 mm.
  11. Dispositif selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que la couche de surface dure (11) se compose de Cr2C ou de CBN.
  12. Dispositif selon l'une quelconque des revendications 1 à 11,
    caractérisé en ce que les arêtes latérales 1, 4, 6, e1 et 8 sont tournées du côté d'aspiration et les arêtes latérales 2, 5, 7, e2 et 9 du côté pression de l'aube mobile de turbine.
EP11159847.0A 2010-03-31 2011-03-25 Forme du joint d'étanchéité sur la plateforme d'une aube de turbine Active EP2372093B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00476/10A CH702980A1 (de) 2010-03-31 2010-03-31 Dichtstruktur an einem Deckband einer Turbinenlaufschaufel.

Publications (2)

Publication Number Publication Date
EP2372093A1 EP2372093A1 (fr) 2011-10-05
EP2372093B1 true EP2372093B1 (fr) 2013-12-11

Family

ID=42335021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11159847.0A Active EP2372093B1 (fr) 2010-03-31 2011-03-25 Forme du joint d'étanchéité sur la plateforme d'une aube de turbine

Country Status (3)

Country Link
US (1) US9441489B2 (fr)
EP (1) EP2372093B1 (fr)
CH (1) CH702980A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2564727A1 (fr) * 2011-08-27 2013-03-06 Braun GmbH Dispositif de rognage de filament doté d'un bord tranchant résistant à l'abrasion et procédé de rognage de filaments
ES2773743T3 (es) * 2011-12-13 2020-07-14 Mtu Aero Engines Gmbh Paleta que tiene un conjunto de nervaduras con un recubrimiento abrasivo
DE102012220326A1 (de) * 2012-11-08 2014-05-22 Bosch Mahle Turbo Systems Gmbh & Co. Kg Strömungsmaschine
US9598973B2 (en) 2012-11-28 2017-03-21 General Electric Company Seal systems for use in turbomachines and methods of fabricating the same
US9903210B2 (en) * 2013-05-21 2018-02-27 Siemens Energy, Inc. Turbine blade tip shroud
US9464530B2 (en) * 2014-02-20 2016-10-11 General Electric Company Turbine bucket and method for balancing a tip shroud of a turbine bucket
DE102016211337A1 (de) * 2016-06-24 2017-12-28 MTU Aero Engines AG Verdickter radial äußerer Ringbereich eines Dichtfins
US20180230819A1 (en) * 2017-02-14 2018-08-16 General Electric Company Turbine blade having tip shroud rail features
US10294801B2 (en) * 2017-07-25 2019-05-21 United Technologies Corporation Rotor blade having anti-wear surface
FR3077093B1 (fr) * 2018-01-19 2020-07-03 Safran Aircraft Engines Aube equilibree d'une roue mobile d'une turbomachine
JP2021110291A (ja) * 2020-01-10 2021-08-02 三菱重工業株式会社 動翼、及び軸流回転機械

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256434A (en) * 1991-06-04 1992-12-09 Rolls Royce Plc Abrasive medium
DE19904229A1 (de) * 1999-02-03 2000-08-10 Asea Brown Boveri Gekühlte Turbinenschaufel
US6805530B1 (en) * 2003-04-18 2004-10-19 General Electric Company Center-located cutter teeth on shrouded turbine blades
US6890150B2 (en) * 2003-08-12 2005-05-10 General Electric Company Center-located cutter teeth on shrouded turbine blades
US6857853B1 (en) * 2003-08-13 2005-02-22 General Electric Company Conical tip shroud fillet for a turbine bucket
US6913445B1 (en) * 2003-12-12 2005-07-05 General Electric Company Center located cutter teeth on shrouded turbine blades
US7066713B2 (en) * 2004-01-31 2006-06-27 United Technologies Corporation Rotor blade for a rotary machine
US7094032B2 (en) * 2004-02-26 2006-08-22 Richard Seleski Turbine blade shroud cutter tip
US9009965B2 (en) * 2007-05-24 2015-04-21 General Electric Company Method to center locate cutter teeth on shrouded turbine blades
US8043061B2 (en) * 2007-08-22 2011-10-25 General Electric Company Turbine bucket tip shroud edge profile
US7887295B2 (en) * 2007-11-08 2011-02-15 General Electric Company Z-Notch shape for a turbine blade
US8057186B2 (en) * 2008-04-22 2011-11-15 General Electric Company Shape for a turbine bucket tip shroud

Also Published As

Publication number Publication date
US20110243714A1 (en) 2011-10-06
CH702980A1 (de) 2011-10-14
US9441489B2 (en) 2016-09-13
EP2372093A1 (fr) 2011-10-05

Similar Documents

Publication Publication Date Title
EP2372093B1 (fr) Forme du joint d&#39;étanchéité sur la plateforme d&#39;une aube de turbine
DE3102575C2 (fr)
DE4436186C2 (de) Turbinen- oder Kompressorschaufel mit einer spannungsreduzierten Spitze
EP1320662B1 (fr) Systeme de garniture d&#39;etancheite
EP2789802B1 (fr) Étage d&#39;aubes pour une turbomachine et procédé associé de fabrication
EP1114241B1 (fr) Bague d&#39;etancheite pour joints de fluides non hermetiques
DE102016222720A1 (de) Dichtungssystem für eine axiale Strömungsmaschine und axiale Strömungsmaschine
EP3999717B1 (fr) Élément intermédiaire pour une connexion aube-disque de rotor pour le rotor d&#39;une turbomachine, rotor pour une turbomachine et turbomachine
EP2921714A1 (fr) Groupe de série d&#39;aubes
WO2013167346A1 (fr) Aube mobile de turbine et section axiale de rotor pour une turbine à gaz
EP2410131B1 (fr) Rotor d&#39;une turbomachine
EP3056677B1 (fr) Aube et turbomachine
DE102013224199A1 (de) Gasturbinen-Laufschaufel
WO2013113432A1 (fr) Lame de scie oscillante rotative pour une machine-outil
EP3183430B1 (fr) Aube mobile de turbine
EP3521562B1 (fr) Aube d&#39;une turbomachine
EP3623576B1 (fr) Aube de turbine à gaz
EP2650475B1 (fr) Pale pour une turbomachine, agencement d&#39;aubes ainsi que la turbomachine
EP3514333A1 (fr) Carénage d&#39;extrémité d&#39;aube de rotor pour une turbomachine, aube de rotor, procédé de fabrication d&#39;un carénage d&#39;extrémité d&#39;aube de rotor et aube de rotor
EP2642080A1 (fr) Aube de turbomachine et procédé d&#39;exploitation associé
EP2530330B1 (fr) Aube directrice pour un compresseur d&#39;une turbomachine, compresseur et turbomachine
DE102005015146A1 (de) Schleifbeschichtung an einem Rotor
EP3246521B1 (fr) Rampe pour plaque de recouvrement d&#39;aube directrice et embase d&#39;aube mobile
DE102021109844A1 (de) Gasturbinen-Schaufelanordnung
EP4073352A1 (fr) Rotor pour une turbomachine et turbomachine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20120327

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20130716

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 644731

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011001780

Country of ref document: DE

Effective date: 20140206

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20131211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140311

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140411

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140411

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011001780

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140325

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20140912

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011001780

Country of ref document: DE

Effective date: 20140912

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20141128

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140325

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140331

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20110325

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502011001780

Country of ref document: DE

Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH, CH

Free format text: FORMER OWNER: ALSTOM TECHNOLOGY LTD., BADEN, CH

Ref country code: DE

Ref legal event code: R081

Ref document number: 502011001780

Country of ref document: DE

Owner name: ANSALDO ENERGIA IP UK LIMITED, GB

Free format text: FORMER OWNER: ALSTOM TECHNOLOGY LTD., BADEN, CH

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 644731

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160325

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170322

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160325

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502011001780

Country of ref document: DE

Owner name: ANSALDO ENERGIA IP UK LIMITED, GB

Free format text: FORMER OWNER: GENERAL ELECTRIC TECHNOLOGY GMBH, BADEN, CH

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20170824 AND 20170830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131211

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180325

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180325

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240321

Year of fee payment: 14