EP2867478B1 - Schaufelkranz für eine turbomaschine - Google Patents

Schaufelkranz für eine turbomaschine Download PDF

Info

Publication number
EP2867478B1
EP2867478B1 EP13745035.9A EP13745035A EP2867478B1 EP 2867478 B1 EP2867478 B1 EP 2867478B1 EP 13745035 A EP13745035 A EP 13745035A EP 2867478 B1 EP2867478 B1 EP 2867478B1
Authority
EP
European Patent Office
Prior art keywords
blade
wedge
shaped clamping
clamping element
side wall
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.)
Not-in-force
Application number
EP13745035.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2867478A1 (de
Inventor
Dimitri Zelmer
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP2867478A1 publication Critical patent/EP2867478A1/de
Application granted granted Critical
Publication of EP2867478B1 publication Critical patent/EP2867478B1/de
Not-in-force 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
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • 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
    • 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
    • F01D5/323—Locking of axial insertion type blades by means of a key or the like parallel to the axis of the 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/322—Blade mountings

Definitions

  • the invention relates to a blade ring for an axial turbomachine comprising a blade carrier with a number of - holding flanks - holding grooves for blades and a corresponding number of blades whose corresponding to the retaining grooves blade feet are inserted into the retaining grooves, wherein the blades at one groove bottom the retaining groove facing Schaufelfußunterseite have a recess whose bottom is at least partially inclined relative to the groove bottom of the retaining groove and in each of which a wedge-shaped clamping element for pressing the blade root is arranged on the support flanks.
  • a generic object is for example from the EP 1 892 380 A1 known.
  • two wedges are provided for each blade between a blade root bottom and the groove bottom of the retaining groove.
  • the inclinations of the two wedges are opposite.
  • the front side is in each case a clamping screw screwed into the wedges, with the one hand, a radial prestressed positioning of the blade roots on corresponding support flanks of the retaining grooves is possible.
  • the screw also serves to fix the blades along the retaining grooves.
  • a resilient attachment of the blades is achieved by the fact that disc springs can be provided below the wedges.
  • the object of the invention is therefore to provide a blade ring for a turbomachine in which a bias-free and thus playful assembly of blades in the retaining grooves of a blade carrier is enabled and still a sufficiently large bias is present in operation, the material-damaging wear - for example, by Clatter - reliably avoids.
  • the blade ring for an axial turbomachine comprising a blade carrier with a number of - holding flanks - retaining grooves for blades and a corresponding number of blades, whose to the retaining grooves Correspondingly executed blade feet are inserted into the retaining grooves, wherein at least one of the blades, preferably all blades, on its one groove bottom of the retaining groove facing blade root underside has or have a recess whose bottom is at least partially obliquely against the groove bottom of the retaining and employed in the respective a wedge-shaped clamping element for pressing the blade root is arranged on the supporting flanks, it is provided that a spring element is provided in each recess, the spring force acts along the retaining groove on the respective wedge-shaped clamping element, wherein the recess of a first side wall and one of the first side wall opposite second wall is limited, wherein the spring element is supported on the one hand on the first side wall and on the other hand on a blunt end of the wedge-shaped clamp
  • the spring element presses the wedge-shaped clamping element in the direction of its pointed end, which acts in conjunction with the inclined bottom of the recess, a force in the radial direction (relative to the installation position in an axial turbomachine) on the blade root, the latter to the support flanks of the retaining grooves presses.
  • This is a backlash-free and preloaded attachment of the blade causes in the holding.
  • the spring element is thus supported on the one hand on a first side wall of the recess and on the other hand on the blunt end of the wedge-shaped clamping element.
  • the wedge-shaped clamping element In order to enable a preload-free disassembly or assembly of the blade in the retaining groove, it is necessary that means are provided with which the wedge-shaped clamping element can be temporarily moved to a position in which the blunt end of the wedge-shaped clamping element closer to the first Sidewall is when in the assembled state. In other words: the spring element is only compressed further for the duration of disassembly or assembly as it is provided in the assembled state. Due to the corresponding inclinations of the bottom of the recess and the wedge-shaped clamping element, the displacement of the clamping element to the first side wall relieves relief for the tension of the blade on the support flanks of the retaining.
  • the spring element is designed as a plate spring or cup spring package.
  • an opening is provided in the first side wall.
  • a cylindrical pin is arranged at the blunt end of the wedge-shaped clamping element, which extends through both the plate spring and the disc spring package and into the opening or through the opening in the side wall.
  • the cylindrical pin may for example be hammered into a hole arranged on the clamping element or glued there.
  • the cylinder pin has in conjunction with the opening arranged in the side wall the function of a guide of the spring element and at the same time a backup of the wedge-shaped clamping element, so that it can not jump out of the recess unintentionally during assembly.
  • the means comprises a threaded hole arranged in the second side wall into which a mounting screw for displacing the wedge-shaped clamping element to the first side wall can be screwed from the outside. Consequently, the spring element is first slipped over the cylindrical pin of the wedge-shaped clamping element before assembly of the blade, after which the cylindrical pin is subsequently inserted into the opening arranged in the first side wall. At the same time, the wedge-shaped clamping element is inserted into the underside of the blade arranged on the blade root.
  • a mounting screw with a correspondingly long threaded shaft from the outside is temporarily screwed through the present in the second side wall threaded hole, with which the wedge-shaped clamping element can be moved in the direction of the first side wall.
  • the displacement must be so large that the wedge-shaped clamping element is completely sunk in the recess and so a game-afflicted assembly of the blade with clamping element is possible.
  • the assembly thus produced is inserted into the retaining groove. After the assembly and thus the blade has assumed the predetermined position in the retaining groove, the mounting screw screwed in the second side wall can be released again, whereby the wedge-shaped clamping element is pressed by the spring element in the direction of the second side wall.
  • the wedge-shaped clamping element Due to the inclined surface of the wedge-shaped clamping element and the corresponding bottom of the recess, the wedge-shaped clamping element is pressed into the narrowing space between groove bottom and bottom and comes on both surfaces - the groove bottom and the floor - to concern. This then results in the tension of the blade root on the support flanks of the retaining.
  • a bayonet connection may be provided instead of a threaded connection in the second side wall.
  • the blades are each secured by means of a between a Schaufelfußunterseite and one of the Schaufelfußunterseite opposite groove base of the holding groove arranged sheet-like securing element against displacement along the retaining grooves by the ends of the sheet-like securing element rest laterally on the blade carrier.
  • a Schaufelfußunterseite and one of the Schaufelfußunterseite opposite groove base of the holding groove arranged sheet-like securing element against displacement along the retaining grooves by the ends of the sheet-like securing element rest laterally on the blade carrier.
  • the wedge-shaped clamping element is at least partially hollow.
  • the blade attachment becomes more elastic in the direction of prestressing and additionally enables friction damping.
  • the blade ring is a blade ring, so that the blade carrier is designed as a rotor disk or shaft and the blade as a rotor blade. Nevertheless, the blade ring is also suitable for mounting vanes.
  • blade ring in a compressor of an axially flowed stationary gas turbine.
  • FIG. 1 shows a stationary gas turbine 10 in a longitudinal partial section.
  • the gas turbine 10 has inside a rotatably mounted about an axis of rotation 12 rotor 14, which is also referred to as a turbine runner.
  • rotor 14 Along the rotor 14 follow one another an intake housing 16, a compressor 18, a toroidal annular combustion chamber 20 with a plurality of rotationally symmetrical mutually arranged burners 22, a turbine unit 24 and a turbine outlet housing 26.
  • the compressor 18 includes an annular compressor duct having compressor stages of blade and vane rings 44 sequentially cascaded therein.
  • the rotor blades 14 are supported by rotor disks and face with their free end airfoils 29 an outer duct wall 42 of the compressor duct.
  • the compressor duct discharges via a compressor outlet diffuser 36 in a plenum 38.
  • the annular combustion chamber 20 is provided with its combustion chamber 28, which communicates with an annular hot gas duct 30 of the turbine unit 24. In the turbine unit 24 four successive turbine stages 32 are arranged.
  • a generator or a working machine (each not shown) is coupled.
  • the compressor 18 sucks through the intake housing 16 as a medium to be compressed ambient air 34 and compresses them.
  • the compressed air is guided through the compressor outlet diffuser 36 into the plenum 38, from where it flows into the burner 22.
  • Fuel also passes into the combustion space 28 via the burners 22.
  • the fuel is burned to a hot gas M with the addition of the compressed air.
  • the hot gas M then flows into the hot gas duct 30, where it relaxes to perform work on the turbine blades of the turbine unit 24.
  • the energy released during this time is absorbed by the rotor 14 and used on the one hand to drive the compressor 18 and on the other hand to drive a work machine or electric generator.
  • FIG. 2 shows a section through a rotor disk 19 of the rotor 14 of the gas turbine 10 in the region of an axially extending retaining groove 21.
  • the rotor disk 19 thus represents a blade carrier 46, in which along its circumference the retaining grooves 21 are evenly distributed and thereby in the axial direction of the Gas turbine extend.
  • the retaining grooves 21 are in cross section ( 3, FIG. 4 ) are dovetail-shaped and thus each comprise two Supporting flanks 23 against which correspondingly designed contact surfaces 25 of a blade root 31 of the blades 27 abut.
  • the blades 27 are formed as blades.
  • a recess 37 is provided on a lower side 33 of the blade root 31, which faces a groove bottom 35 of the retaining groove 21, a recess 37 is provided.
  • the recess 37 is bounded by a first side wall 39 and a second side wall 41 opposite the first side wall 39.
  • the first side wall 39 is arranged on the inflow side and the second side wall 41 is arranged downstream.
  • a sheet-like securing element 43 is inserted in the retaining groove 21, whose ends are longitudinally slotted.
  • tab pairs are at both ends both a tab 45 both outwardly and a tab 45 inside ( 3 and 4 ), whereby a displacement of the blade 27 inserted in the retaining groove 21 is blocked.
  • a wedge-shaped clamping element 47 is provided with a pointed end 49 and a blunt end 51.
  • a cylindrical pin 53 is arranged, on which in the illustrated embodiment, a total of four disc springs are threaded as a spring element 55.
  • the cylindrical pin 53 extends into an opening 57 arranged in the first side wall 39.
  • the bottom 59 of the recess 37 is opposite to the groove bottom 35 of the retaining groove 21, corresponding to the inclination of the in FIG. 2 shown upper surface 61 of the wedge-shaped clamping element 47 inclined.
  • a threaded hole 63 is provided in the second side wall 41, which - as well as the opening 57 - extends parallel to the retaining groove 21.
  • a threaded hole 63 a required for the assembly of the blade 27 mounting screw 65 can be screwed, with the help of the wedge-shaped clamping element 47 in FIG. 2 moved so far to the left can be that its blunt end 51 is positioned comparatively close to the first side wall 39. This allows the wedge-shaped clamping element 47 completely sink in the recess 37.
  • the assembly of the blade 27 in the retaining groove 21 then takes place as follows: First, the prefabricated sheet-like securing element 43 is inserted into the retaining groove.
  • the sheet-like securing element 43 extends over the entire length of the retaining groove 21, wherein already two of the tabs 45 are already bent transversely to its longitudinal extent on the inflow or outflow side.
  • the outwardly bent tab 45 serves as a stop during the insertion of the blade 27 in the retaining groove 21.
  • At the other end of the sheet-like securing element 43 is initially only one of the two tabs 45 in the radial direction to the machine axis pre-bent.
  • the spring member 55 is placed on the cylindrical pin 53 of the wedge-shaped clamping member 47 and inserted together into the opening 57 and the recess 37.
  • the cylindrical pin 53 then engages in the opening 57 designed as a slot.
  • the mounting screw 65 is screwed into the threaded hole 63, so deep that the wedge-shaped clamping member 47 is pressed to the opposite side, ie in the direction of the first side wall 39 and so far, until the wedge base 67 is located within the recess.
  • a bias-free insertion of the blade 27 can be ensured.
  • the blade 27 is inserted with the prestressed wedge-shaped clamping element 47 in the retaining groove 21.
  • the mounting screw 65 is released and removed from the assembly.
  • the wedge-shaped clamping element 47 is relieved of the force of the mounting screw and can press the blade 27 in the retaining groove 21 against the support flanks 23 and thus bias by the action of the axial forces of the spring element 55.
  • the hitherto not bent tab 45 of the sheet-like securing element 43 bent in the radial direction away from the machine axis, which then secures the blade 27 against emigration from the retaining groove 21.
  • the wedge-shaped clamping element 47 may be at least partially hollow.
  • the cavity 69 causes a resilient bias and thus brings in addition a friction damping with it.
  • the invention relates to a blade ring 44 for an axial turbomachine, comprising a blade carrier 46 with a number of retaining grooves 21 and a corresponding number of blades 27, the blade roots 31 are inserted into the retaining grooves 21, wherein the blades 27 at its one groove bottom 35 of Garut 21 facing bottom 33 each have a recess 37, the bottom 59 is at least partially opposite the groove bottom 35 of the retaining groove 21 is inclined and in each of which a wedge-shaped clamping element 47 is arranged for pressing the blade root 31 to the support flanks 23.
  • a spring element 55 is provided in each recess 37, the spring force along the retaining 21st acting on the relevant wedge-shaped clamping element 47 and that means are provided with which the wedge-shaped clamping element 47 for the bias-free mounting of the blade 27 in the retaining groove 21 can be temporarily moved to a position in which the blade root 31 sits without bias in the retaining groove 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP13745035.9A 2012-07-27 2013-07-29 Schaufelkranz für eine turbomaschine Not-in-force EP2867478B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012213227A DE102012213227B3 (de) 2012-07-27 2012-07-27 Schaufelkranz für eine Turbomaschine
PCT/EP2013/065885 WO2014016431A1 (de) 2012-07-27 2013-07-29 Schaufelkranz für eine turbomaschine

Publications (2)

Publication Number Publication Date
EP2867478A1 EP2867478A1 (de) 2015-05-06
EP2867478B1 true EP2867478B1 (de) 2016-09-21

Family

ID=48916028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13745035.9A Not-in-force EP2867478B1 (de) 2012-07-27 2013-07-29 Schaufelkranz für eine turbomaschine

Country Status (8)

Country Link
US (1) US20150176417A1 (ru)
EP (1) EP2867478B1 (ru)
JP (1) JP5934443B2 (ru)
KR (1) KR20150037864A (ru)
CN (1) CN104508248B (ru)
DE (1) DE102012213227B3 (ru)
RU (1) RU2015106789A (ru)
WO (1) WO2014016431A1 (ru)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2711504A1 (de) * 2012-09-19 2014-03-26 Siemens Aktiengesellschaft Vorrichtung zum Überbrücken eines Spiels
US9739160B2 (en) 2013-10-18 2017-08-22 Siemens Aktiengesellschaft Adjustable blade root spring for turbine blade fixation in turbomachinery
US11603794B2 (en) 2015-12-30 2023-03-14 Leonard Morgensen Andersen Method and apparatus for increasing useful energy/thrust of a gas turbine engine by one or more rotating fluid moving (agitator) pieces due to formation of a defined steam region
US10208709B2 (en) * 2016-04-05 2019-02-19 United Technologies Corporation Fan blade removal feature for a gas turbine engine
US10465537B2 (en) * 2016-05-27 2019-11-05 General Electric Company Margin bucket dovetail radial support feature for axial entry buckets
IT201600130088A1 (it) 2016-12-22 2018-06-22 Nuovo Pignone Tecnologie Srl Pala di turbina e set di fissaggio
FR3084162B1 (fr) * 2018-07-23 2020-10-02 Safran Aircraft Engines Montage d'essai, et machine de test en fatigue vibratoire.
CN110439858A (zh) * 2019-09-09 2019-11-12 上海电气燃气轮机有限公司 一种具有减振效果的叶片锁紧结构
US11555407B2 (en) 2020-05-19 2023-01-17 General Electric Company Turbomachine rotor assembly
CN111946642B (zh) * 2020-08-17 2021-06-29 江苏恒康机电有限公司 一种方便拆卸的不锈钢风机
CN114109512A (zh) * 2020-08-25 2022-03-01 通用电气公司 叶片燕尾榫和保持设备
CN112483464B (zh) * 2020-10-27 2023-03-14 中国船舶重工集团公司第七0三研究所 一种周向槽型燃气轮机压气机叶片锁紧装置
FR3121954B1 (fr) * 2021-04-20 2023-07-14 Safran Aircraft Engines Dispositif de calage d’un pied d’aube dans une alveole d’un disque de rotor de turbomachine
FR3140120A1 (fr) * 2022-09-22 2024-03-29 Safran Aircraft Engines Roue de turbine comprenant un dispositif de retenue axiale de pieds d’aube dans les alvéoles d’un disque

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5738603A (en) * 1980-08-15 1982-03-03 Hitachi Ltd Fixing construction of rotary machine blade
JPS57151005A (en) * 1981-03-13 1982-09-18 Hitachi Ltd Fall-off stopper of moving blade
US5123813A (en) * 1991-03-01 1992-06-23 General Electric Company Apparatus for preloading an airfoil blade in a gas turbine engine
US5236309A (en) * 1991-04-29 1993-08-17 Westinghouse Electric Corp. Turbine blade assembly
US5368444A (en) * 1993-08-30 1994-11-29 General Electric Company Anti-fretting blade retention means
JPH0988506A (ja) * 1995-09-21 1997-03-31 Ngk Insulators Ltd ハイブリッド型ガスタービン動翼用のブレード及びタービンディスク並びにこれらからなるハイブリッド型ガスタービン動翼
JPH11182494A (ja) * 1997-12-22 1999-07-06 Toshiba Corp 軸流圧縮機
DE10120532A1 (de) * 2001-04-26 2002-10-31 Alstom Switzerland Ltd Vorrichtung und Verfahren zur Befestigung einer Laufschaufel längs einer innerhalb eines Rotors einer axial durchströmten Turbomaschine verlaufenden Umfangsnut
CN100335749C (zh) * 2002-05-24 2007-09-05 Abb涡轮系统有限公司 工作叶片的轴向固定装置
EP1703078B1 (de) * 2005-03-17 2007-05-30 Siemens Aktiengesellschaft Biegevorrichtung und Verfahren zum Biegen eines Sicherungsbleches in einem Verdichter oder einer Turbine
EP1892380A1 (de) * 2006-08-25 2008-02-27 Siemens Aktiengesellschaft Schaufelbefestigung einer Turbine
US8439635B2 (en) * 2009-05-11 2013-05-14 Rolls-Royce Corporation Apparatus and method for locking a composite component

Also Published As

Publication number Publication date
CN104508248B (zh) 2016-08-17
JP2015524531A (ja) 2015-08-24
KR20150037864A (ko) 2015-04-08
JP5934443B2 (ja) 2016-06-15
RU2015106789A (ru) 2016-09-20
CN104508248A (zh) 2015-04-08
DE102012213227B3 (de) 2013-09-26
WO2014016431A1 (de) 2014-01-30
US20150176417A1 (en) 2015-06-25
EP2867478A1 (de) 2015-05-06

Similar Documents

Publication Publication Date Title
EP2867478B1 (de) Schaufelkranz für eine turbomaschine
DE60220492T2 (de) Verbindungs- und Verriegelungssystem für die Laufschaufeln eines Axialverdichters
EP2320030B1 (de) Rotor mit Laufschaufel für eine axial durchströmte Turbomaschine
EP0355312B1 (de) Axialdurchströmte Turbine mit radial-axialer erster Stufe
DE102007055572A1 (de) Schweißen einer Statorausgleichsplatte
EP2173972B1 (de) Rotor für eine axial durchströmbare strömungsmaschine
WO2008122492A1 (de) Anordnung zur axialsicherung an laufschaufeln in einem rotor sowie gasturbine mit einer solchen anordnung
EP1584793A2 (de) Turbinenschaufelarretiervorrichtung
EP2242909B1 (de) Turbomaschinenrotor, laufschaufel für einen solchen turbomaschinenrotor sowie entsprechendes montageverfahren
EP3078808A1 (de) Laufschaufelreihe für eine strömungsmaschine
DE3601911C2 (de) Schaufelreihe
WO2010040643A1 (de) Turbolader mit befestigungselementen zum befestigen von schaufellagerringen einer variablen turbinengeometrie vtg
EP2994615A1 (de) Rotor für eine thermische strömungsmaschine
DE10120532A1 (de) Vorrichtung und Verfahren zur Befestigung einer Laufschaufel längs einer innerhalb eines Rotors einer axial durchströmten Turbomaschine verlaufenden Umfangsnut
EP2149677B1 (de) Befestigungsanordnung zur Befestigung von einer Laufschaufel an einem Rotor einer Turbomaschine
DE3424925C1 (de) Turbomaschine mit wenigstens einem radial durchströmten Laufrad
DE2532554C2 (de) Verdichterstator
DE102008048261B4 (de) Axialturbomaschinenrotor mit einem Schaufelschloss und Verfahren zum Herstellen desselben
EP1657404A1 (de) Rotor einer Turbomaschine, insbesondere Gasturbinenrotor
EP0712995A1 (de) Beschaufelter Rotor
EP0707150B1 (de) Verdichter
EP3347573B1 (de) Dummy-radscheibe und verfahren zum bearbeiten von schaufeln
DE2257076A1 (de) Trommellaeufer fuer axialverdichter und verfahren zur herstellung solcher verdichter
EP3054098A1 (de) Schlussbaugruppe zum schliessen eines schaufelkranzes, zugehörige schaufelträger, strömungsmaschine und verfahren zum einsetzen einer schlussbaugruppe
EP2886799A1 (de) Schaufelkranz für eine Strömungsmaschine und Verfahren zum Montieren von Schaufeln eines Schaufelkranzes einer Strömungsmaschine

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

17P Request for examination filed

Effective date: 20141217

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

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160414

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

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG, CH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 831242

Country of ref document: AT

Kind code of ref document: T

Effective date: 20161015

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: 502013004689

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Ref country code: NL

Ref legal event code: MP

Effective date: 20160921

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

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: 20160921

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: 20160921

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: 20160921

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: 20161221

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

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: 20161222

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: 20160921

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: 20160921

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: 20160921

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: 20160921

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: 20160921

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

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: 20160921

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: 20160921

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: 20161221

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: 20160921

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: 20170123

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: 20170121

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: 20160921

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: 20160921

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013004689

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: 20160921

26N No opposition filed

Effective date: 20170622

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCOW

Free format text: NEW ADDRESS: WERNER-VON-SIEMENS-STRASSE 1, 80333 MUENCHEN (DE)

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: 20160921

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502013004689

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20170729

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180330

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: 20170731

Ref country code: GB

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

Effective date: 20170729

Ref country code: LI

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

Effective date: 20170731

Ref country code: DE

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

Effective date: 20180201

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: FR

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

Effective date: 20170731

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170731

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

Ref country code: LU

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

Effective date: 20170729

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

Ref country code: IE

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

Effective date: 20170729

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 NON-PAYMENT OF DUE FEES

Effective date: 20170731

Ref country code: IT

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

Effective date: 20170729

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: 20160921

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: 20160921

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: 20160921

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: 20130729

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 831242

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180729

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

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: 20160921

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: 20160921

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: 20180729

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

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: 20160921

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

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: 20160921