EP2696035A1 - Dispositif de retenue pour aubes mobiles d'une turbomachine et procédé de montage associé - Google Patents

Dispositif de retenue pour aubes mobiles d'une turbomachine et procédé de montage associé Download PDF

Info

Publication number
EP2696035A1
EP2696035A1 EP12179777.3A EP12179777A EP2696035A1 EP 2696035 A1 EP2696035 A1 EP 2696035A1 EP 12179777 A EP12179777 A EP 12179777A EP 2696035 A1 EP2696035 A1 EP 2696035A1
Authority
EP
European Patent Office
Prior art keywords
securing
counter
web
securing element
holder
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.)
Withdrawn
Application number
EP12179777.3A
Other languages
German (de)
English (en)
Inventor
Felix Kern
Frank Stiehler
Stephan Klän
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
Original Assignee
MTU Aero Engines 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 MTU Aero Engines AG filed Critical MTU Aero Engines AG
Priority to EP12179777.3A priority Critical patent/EP2696035A1/fr
Priority to US13/962,319 priority patent/US20140044550A1/en
Publication of EP2696035A1 publication Critical patent/EP2696035A1/fr
Withdrawn legal-status Critical Current

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
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
    • F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides
    • 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
    • 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
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making
    • Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member

Definitions

  • the invention relates to a retaining device for blades of a turbomachine on a rotor disk according to the preamble of patent claim 1, a method for axial securing of blades on a rotor disk of a turbomachine and a turbomachine.
  • Blades 1, as in Figures 1 and 2 are shown with their foot 2 in an axial groove 4 of a rotor disk 6 of a turbomachine are regularly secured by a retaining device in the axial direction.
  • a known retaining device has a plurality of securing elements 8, which are respectively arranged in the groove 4 between the foot 2 and a groove bottom.
  • a securing element 8 in each case has a web 10 for arrangement in the grooves 4 and two securing sections 12, 14 extending at the ends from the web 10, which are widened in relation to the groove 4 and bear against a front disk surface 16 and a rear disk surface 18 in the mounted state , Due to the widened relative to the grooves 4 securing portions 12, 14, the securing elements 8 are positioned in the grooves 4 before blading the rotor disk 6. However, if a securing portion 12, 14 damaged during bending, the entire rotor disk 6 must be de-scooped to replace the defective fuse element 8.
  • the object of the invention is to provide a retaining device for blades of a turbomachine on a rotor disk, which eliminates the aforementioned disadvantages and allows a favorable power transmission between the blades and the rotor disk. Furthermore, it is an object of the invention to provide an improved method for the axial securing of rotor blades on a rotor disk of a turbomachine and a turbomachine with an improved axial blade safety device.
  • a rotor blade retaining device on a rotor disk having blade root receivers for locating the blades has a plurality of axial securing members each having at least one land for positioning in a blade root receiver.
  • each web end has a holding section for producing a positive connection with a counter-holder of an opposite axial securing element.
  • the securing elements are each positively connected to a securing element of the opposite side, they support each other, whereby an outwardly torque-free power transmission takes place. In addition, a defined power flow is ensured.
  • the securing elements are independent of a mounting direction viewed in the axial direction from the front or from behind mountable.
  • the holding portions may be narrower than the Schaufelfußfactn in the arrangement area be the fuse elements and assume a different from a securing position mounting position.
  • the holding portions In the mounting position, the holding portions are as flat or almost as flat as the webs aligned, so that the holding portions and the webs have an equal or nearly equal height.
  • the holding portions may be plastically deformable, whereby they are then bent from the flat mounting position in the upright securing position. Alternatively, the holding portions are biased in their upright securing position and then deformed from this elastic in the flat mounting position. As a result, accidentally damaged fuse elements can be replaced at any time, making appropriate repairs can be performed quickly.
  • the counter-holders are offset in the vertical direction of the securing elements and have an elongated shape extending in the transverse direction of the securing elements, wherein they have such an extent that they extend beyond at least one adjacent Schaufelfuß technique in the mounted state or bridge an adjacent Schaufelfuß technique.
  • the counterholds are already always in their securing position and do not have to be transferred into this position.
  • the counter-holders run during assembly on the rotor disk and thus define a clear axial securing position of the securing elements in the Schaufelfuß techniquen.
  • two fuse elements each form a fuse element pair.
  • Preferred securing elements each have a web, from which a counter-holder extends on one side in the transverse direction.
  • the two securing elements of this pair have a same or identical L-shaped configuration.
  • the fuse element pair can be used as a repair part, for example, if a conventional web-like securing element is damaged.
  • the defective fuse element and an adjacent fuse element can be removed and replaced by a pair of fuse elements.
  • the retaining device may also comprise at least one pair of securing elements, of which one securing element has a web with a counterpart extending on both sides of the web, and the other securing element has two spaced-apart webs has, which are connected by a counter-holder.
  • the web of the T-shaped securing element between the webs of the U-shaped securing element is arranged and the holding portions each form a positive connection with the counter-holders.
  • the retaining device can be used both in rotor disks with a straight and in rotor disks with an odd number of rotor blades.
  • the fuse element pair consisting of the U-shaped and the T-shaped securing element with odd numbers of blades as a kind of closure of the restraint device.
  • the fuse elements do not form a self-contained fuse element pair, but identical fuse elements are assembled like a chain.
  • Preferred securing elements for forming the securing element chain are each U-shaped and each have two webs which are interconnected by a counter-holder and are spaced apart such that two securing elements can be arranged with one of its two webs between the webs.
  • each fuse element extends over four blades.
  • a U-shaped securing element and an I-shaped securing element can be provided which can be mounted easily or repeatedly.
  • the I-shaped securing member has a body portion which is wider than the respective blade root receiver in the arrangement region of the securing element and is free from engagement of a holding portion in the assembled state, instead of a counter-holder.
  • the I-shaped securing element is positioned between two identically oriented U-shaped securing elements, wherein the opposite U-shaped securing element has a widened counter-holder, so that three webs can be arranged between its two webs.
  • the respective form-fit can be improved or produced in a simplified manner if the holding sections each have a dimensionally stable latching nose for partially gripping around the respective counter-holder.
  • axial securing elements are inserted into the Schaufelfuß techniquen, which are connected by at least one positive locking.
  • the securing elements are each connected to a securing element of the opposite side and thus support each other, whereby an outwardly torque-free power transmission takes place.
  • a defined power flow is ensured.
  • the mutual support can be further improved if the securing elements are connected to each other by a mutual positive connection.
  • a preferred turbomachine has a bladed rotor disk whose blades are used in their Schaufelfuß techniquen and secured by a retaining device according to the invention in the axial direction.
  • FIG. 3 a fuse element pair 20 of a retaining device according to the invention for the axial securing of blades (not shown) on a rotor disk (not shown) is shown.
  • the blades are each used with their feet in an axial Schaufelfußfactn or Rotornut the rotor disk.
  • a radial securing of the blades in the rotor grooves is effected by a positive contouring of the rotor grooves and the feet.
  • the retaining device has a multiplicity of securing element pairs 20, which each have two identical axial securing elements 22, 22 'which mutually form a form-locking connection.
  • the securing elements 22, 22 ' have, as in FIG. 4 exemplified on the fuse element 22, a web 24, the end a holding portion 26 and the end has a counter-holder 28.
  • the web 24 has a plate-like contour and an extension in the transverse direction y or a width corresponding to the rotor groove in the arrangement region of the securing element 22.
  • the web 24 thus has a width which is equal to or narrower of a groove bottom.
  • the counter-holder 28 is rigid and offset from the web 24 in the vertical direction z arranged. It has an elongated extension in the transverse direction y of the securing element 22 and thereby an elongated extent in the circumferential direction of the rotor disk. It is thus spaced in the vertical direction z of the web 24 and formed in the embodiment shown as a one-sided arm. It has such an extent in the transverse direction y, that it bridges an adjacent Rotornut.
  • the holding portion 26 is plastically deformable and downgraded against not numbered web flanks end. It is thus narrower than the rotor groove in the arrangement region of the securing element 22. It can be transferred from a flat mounting position into an upright securing position shown. Due to the narrow design and the flat mounting position of the holding portion 26, the rotor disk can be bladed before inserting the securing elements 22 in the rotor grooves, since the holding portion 26 can be pushed between the groove bottom and the blade roots.
  • the holding portion 26 has a locking lug 30 for forming a radially outer boundary surface for a counter-holder 28 'of an adjacent securing element 22' (s. FIG. 3 ).
  • the holding portions 26, 26 ' are around the counter-holder 28, 28' of the respective opposite securing element 26, 26 'deformed until they with their locking lugs 30, 30' engage around the counter-holders 28, 28 '.
  • the securing elements 22, 22 ' are now mutually connected by means of positive locking and the blades arranged in these rotor grooves are releasably secured in the axial direction of the rotor disk.
  • fuse element pair 32 is provided by means of which three blades can be secured to a rotor disk.
  • This fuse element pair 32 consists of two different fuse elements 34, 36; namely, it has a T-shaped securing element 34 and U-shaped securing element 36, which are mounted in the axial direction x opposite to each other.
  • the T-shaped securing element 34 has a web 24, which is arranged centrally of a counter-holder 28.
  • the counter-holder 28 extends on both sides of the web 24 and has quasi two arm halves 38, 40.
  • the arm halves 38, 40 have such an extent in the transverse direction y, that they each bridge over an adjacent rotor groove in the mounted state.
  • the web 24 has a plastically deformable holding section 26 with a latching nose 30.
  • the securing element 36 is U-shaped with two spaced apart in the transverse direction y webs 24 ', each having a holding portion 26' with a latching nose 30 'and are connected via a counter-holder 28' together.
  • the webs 24 ' are spaced apart such that they are not added in the mounted state in the respective adjacent rotor groove, but in the next but one rotor groove. In other words, in the mounted state, an empty groove for receiving the web 24 of the T-shaped securing element 34 is formed between the webs.
  • the T-shaped securing element 34 and the U-shaped securing elements 36 are oriented in the axial direction x opposite to each other. They pass through each of their webs 24, 24 'a Rotornut and lie with their counter-holders 28, 28' on a front side surface and a rear side surface of the rotor disk.
  • the T-shaped securing element 34 is arranged with its web 24 in the empty groove between the webs 24 'of the U-shaped securing element.
  • the holding portions 26, 26 ' are the counter-holders 28, 28' and the counter-holder 28 'and the arm halves 38, 40 of the opposite Secured element 34, 36 laid, which are thereby interconnected by mutual positive engagement.
  • the securing element pairs 20 consisting of the L-shaped securing elements 22, 22 'with the securing element pairs 32 consisting of the T-shaped securing elements 34 and U-shaped securing elements 36 cover all blade numbers.
  • FIG. 6 a fuse element chain 42 of a restraint device according to the invention is shown.
  • the securing element chain 42 is characterized in that a securing element 44 'with its two adjacent securing elements 44, 44 "is mutually positively connected, so that the retaining device is closed in an annular manner over the circumference of the rotor disk.
  • the securing elements 44, 44 ', 44 are identical and, as an example, on the securing element 44 in FIG. 7 clearly visible, U-shaped. They each have two in the transverse direction y spaced webs 24, each having a holding portion 26 with a latching nose 30 and which are interconnected by a counter-holder 28. In contrast to the U-shaped securing element 36 after FIG. 5 However, the webs 24 in the securing elements 44, 44 ', 44 "spaced so far apart that in the assembled state, not only an empty groove, but in each case two free empty grooves are formed between them .. Die U-förmige Sich mecanics institute 44, 44', 44 "thus each extend over four blades.
  • FIG. 8 To close the chain is not in by four (4) divisible blade numbers (n mod 4 ⁇ 0 with n: number of blades) a in FIG. 8 shown fuse element pair 46 as a closure one or more times installed.
  • n mod 4 ⁇ 0 with n: number of blades For at least four (4) divisible blade numbers produce at least one empty groove between the securing elements 44, 44 "which are aligned at the end in the axial direction x.
  • the end securing elements 44, 44" are thus spaced apart in the circumferential direction and can no longer be identical to one another Secured element 44 'are connected because its counter-holder 28' has a too short transverse extent y.
  • the fuse element pair 46 comprises a U-shaped securing element 48, the two webs 24 'are spaced apart from one another such that the counter-holder 28' can extend over three empty grooves.
  • the U-shaped securing element 48 is thus opposite to the U-shaped securing element 44, 44 ', 44 "after the FIGS. 6 and 7 widened in the transverse direction y.
  • the webs 24 'each have a holding portion 26' with a latching nose 30 '.
  • the securing element pair 46 has an approximately I-shaped securing element 50.
  • the I-shaped securing element 50 has a web 24 "'which has a holding section 26'" with a latching groove 30 '. "Instead of a counter-holder 28, the I-shaped securing element 50 has an end-side body section 52.
  • the body section 52 is opposite to FIG Stem 24 '"staggered in the vertical direction z and has such an extent on both sides of the web 24"', that this rests in the mounted state on the side surfaces of the rotor disk.
  • the widened U-shaped securing element 48 is oriented in the axial direction x opposite to the end-side U-shaped securing elements 44, 44 "and bridges the empty groove 28 "of the end-side securing elements 44, 44” .
  • the holding sections 26, 26 “of the end-side securing elements 44, 44” engage with their latching noses 30, 30 "the counter-holder 28 'of the widened U-shaped securing element 48.
  • the securing elements 44, 44 ", 48 are now in mutual positive connection
  • the I-shaped securing element 50 is inserted into the empty slot opposite to the widened U-shaped securing element 48. It lies laterally with its body section 52 Empty groove on the side surfaces of the rotor disk and engages with its holding portion 26 '"and its locking lug 30''form-fitting the counter-holder 28' of the U-shaped securing element.
  • the securing elements 22, 34, 36, 44, 48, 50 each consist of a metallic material or a metal alloy.
  • the counter-holders 28 are preferably curved according to the rotor disk in the transverse direction y of the securing elements and thus in the circumferential direction of the retaining device or the rotor disk.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP12179777.3A 2012-08-09 2012-08-09 Dispositif de retenue pour aubes mobiles d'une turbomachine et procédé de montage associé Withdrawn EP2696035A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12179777.3A EP2696035A1 (fr) 2012-08-09 2012-08-09 Dispositif de retenue pour aubes mobiles d'une turbomachine et procédé de montage associé
US13/962,319 US20140044550A1 (en) 2012-08-09 2013-08-08 Restraint Mechanism for Rotor Blades of a Turbo Engine, an Assembly Method and a Turbo Engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12179777.3A EP2696035A1 (fr) 2012-08-09 2012-08-09 Dispositif de retenue pour aubes mobiles d'une turbomachine et procédé de montage associé

Publications (1)

Publication Number Publication Date
EP2696035A1 true EP2696035A1 (fr) 2014-02-12

Family

ID=46642432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12179777.3A Withdrawn EP2696035A1 (fr) 2012-08-09 2012-08-09 Dispositif de retenue pour aubes mobiles d'une turbomachine et procédé de montage associé

Country Status (2)

Country Link
US (1) US20140044550A1 (fr)
EP (1) EP2696035A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2787175A1 (fr) * 2013-04-04 2014-10-08 MTU Aero Engines GmbH Système de sécurisation et procédé de sécurisation d'une zone de fixation d'au moins une aube de rotor ou d'un segment d'aube de rotor dans une zone de montage d'un palier de rotor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130149127A1 (en) * 2011-12-09 2013-06-13 General Electric Company Structural Platforms for Fan Double Outlet Guide Vane
US9303520B2 (en) 2011-12-09 2016-04-05 General Electric Company Double fan outlet guide vane with structural platforms
US9303531B2 (en) 2011-12-09 2016-04-05 General Electric Company Quick engine change assembly for outlet guide vanes
US10724390B2 (en) 2018-03-16 2020-07-28 General Electric Company Collar support assembly for airfoils
CN114483202B (zh) * 2021-12-17 2023-11-17 中国航发湖南动力机械研究所 一种用于长伸根、带冠互锁叶片的限位组件和涡轮转子

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB840820A (en) * 1957-03-22 1960-07-13 Vickers Electrical Co Ltd Locking means for axial flow turbo-machine blading
US3057598A (en) * 1960-07-01 1962-10-09 Ass Elect Ind Locking means for turbine or compressor blading
US3076634A (en) * 1959-06-12 1963-02-05 Ass Elect Ind Locking means for compressor and turbine blades
GB944326A (en) * 1959-06-12 1963-12-11 Ass Elect Ind Locking means for turbine or compressor blading
EP0761930A1 (fr) 1995-08-24 1997-03-12 ROLLS-ROYCE plc Segments d'étanchéité et de rétention pour les aubes d'une turbomachine
GB2313162A (en) * 1996-05-17 1997-11-19 Rolls Royce Plc Circumfrentially sliding locking tab for blade root.
WO2000031378A1 (fr) * 1998-11-23 2000-06-02 Pratt & Whitney Canada Corp. Fixation d'aubage sur le disque de turbine
EP1057973A2 (fr) 1999-05-31 2000-12-06 Nuovo Pignone Holding S.P.A. Dispositif de verrouillage des aubes de turbines à gaz
DE19960896A1 (de) 1999-12-17 2001-06-28 Rolls Royce Deutschland Rückhaltevorrichtung für Rotorschaufeln einer Axialturbomaschine
US20040062643A1 (en) 2002-09-30 2004-04-01 General Electric Company Turbomachinery blade retention system
EP1650406A2 (fr) 2004-10-21 2006-04-26 ROLLS-ROYCE plc Dispositif de verrouillage pour un étage rotorique d'une turbine à gaz
US20090060746A1 (en) 2007-08-30 2009-03-05 Honeywell International, Inc. Blade retaining clip

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6190131B1 (en) * 1999-08-31 2001-02-20 General Electric Co. Non-integral balanced coverplate and coverplate centering slot for a turbine

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB840820A (en) * 1957-03-22 1960-07-13 Vickers Electrical Co Ltd Locking means for axial flow turbo-machine blading
US3076634A (en) * 1959-06-12 1963-02-05 Ass Elect Ind Locking means for compressor and turbine blades
GB944326A (en) * 1959-06-12 1963-12-11 Ass Elect Ind Locking means for turbine or compressor blading
US3057598A (en) * 1960-07-01 1962-10-09 Ass Elect Ind Locking means for turbine or compressor blading
EP0761930A1 (fr) 1995-08-24 1997-03-12 ROLLS-ROYCE plc Segments d'étanchéité et de rétention pour les aubes d'une turbomachine
GB2313162A (en) * 1996-05-17 1997-11-19 Rolls Royce Plc Circumfrentially sliding locking tab for blade root.
WO2000031378A1 (fr) * 1998-11-23 2000-06-02 Pratt & Whitney Canada Corp. Fixation d'aubage sur le disque de turbine
EP1057973A2 (fr) 1999-05-31 2000-12-06 Nuovo Pignone Holding S.P.A. Dispositif de verrouillage des aubes de turbines à gaz
DE19960896A1 (de) 1999-12-17 2001-06-28 Rolls Royce Deutschland Rückhaltevorrichtung für Rotorschaufeln einer Axialturbomaschine
US20040062643A1 (en) 2002-09-30 2004-04-01 General Electric Company Turbomachinery blade retention system
EP1650406A2 (fr) 2004-10-21 2006-04-26 ROLLS-ROYCE plc Dispositif de verrouillage pour un étage rotorique d'une turbine à gaz
US20090060746A1 (en) 2007-08-30 2009-03-05 Honeywell International, Inc. Blade retaining clip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2787175A1 (fr) * 2013-04-04 2014-10-08 MTU Aero Engines GmbH Système de sécurisation et procédé de sécurisation d'une zone de fixation d'au moins une aube de rotor ou d'un segment d'aube de rotor dans une zone de montage d'un palier de rotor
US9677403B2 (en) 2013-04-04 2017-06-13 MTU Aero Engines AG Securement system and method for securing an attachment portion of at least one rotor blade or rotor blade segment in a mounting site of a rotor base

Also Published As

Publication number Publication date
US20140044550A1 (en) 2014-02-13

Similar Documents

Publication Publication Date Title
EP2696035A1 (fr) Dispositif de retenue pour aubes mobiles d'une turbomachine et procédé de montage associé
EP2399004B1 (fr) Section de rotor pour un rotor d'une turbomachine, aube rotorique pour une turbomachine et élément de blocage
EP2846003B1 (fr) Turbine à gaz, procédés de montage et de démontage associés d'un rotor d'une turbine à gaz
DE10350627B4 (de) Turbinenrotor- und Schaufelanordnung, Vorspannfedersegment und zugehöriges Verfahren für Dampfturbinenschaufeln der Reaktionsbauart
EP1922471A1 (fr) Systeme de retenue axiale de d'aubes mobiles dans un rotor et utilisation dudit systeme
DE7423406U (de) Laeufer von stroemungsmaschinen
EP1584793B1 (fr) Dispositif pour la fixation axiale d'aubes de turbine
DE102005001222B4 (de) Schneidvorrichtung und Schneidverfahren zum Zerschneiden oder Bersten einer Rohrleitung in Längsrichtung
EP3574188B1 (fr) Procédé permettant de fermer de manière étanche un interstice annulaire dans une turbine ainsi que turbine
WO2012007158A1 (fr) Élément d'étanchéité servant à rendre étanche une fente
DE102005024932A1 (de) Turbinenschaufelaxialsperre
DE102008030469B4 (de) Drehmomentwandler mit einem Innenring aus mehreren Abschnitten
DE3248021C2 (de) Füllstück zur Arretierung eines Schaufelkranzes in einer in Umfangsrichtung verlaufenden Schaufelhaltenut eines Strömungsmaschinenrotors
EP2696039A1 (fr) Étage de turbine à gaz
EP3564483A1 (fr) Pale d'aube pour une aube de turbine
WO2014006179A1 (fr) Système d'entraînement comportant une chaîne d'entrainement passant par une couronne dentée
EP2617946A2 (fr) Système pour prédéterminer la position de montage d'aubes mobiles, élément de sécurisation, aube directrice, turbomachine et procédé
DE202015101618U1 (de) Kettenschloss mit Sicherungselement
EP2090751A1 (fr) Aube pour turbomachine
EP2787177B1 (fr) Turbomachine axiale et procédé de montage
EP2881545B1 (fr) Élément d'étanchéité, dispositif d'étanchéité et turbomachine
EP2787175B1 (fr) Système de sécurité et procédé de sécurité d'une zone de fixation d'au moins une aube de rotor ou d'un segment d'aube de rotor dans une zone de montage d'un palier de rotor
CH705377A1 (de) Verfahren zur Rekonditionierung eines Rotors einer Strömungsmaschine.
DE102009056336A1 (de) Rohrkupplungssystem, insbesondere für eine Anbohrvorrichtung
DE102018003757A1 (de) Beheizbares rotorblatt einer windenergieanlage

Legal Events

Date Code Title Description
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

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

17P Request for examination filed

Effective date: 20140704

RBV Designated contracting states (corrected)

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

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MTU AERO ENGINES GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MTU AERO ENGINES AG

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160301