EP2045444B1 - Aube de rotor, procédé de fabrication d'une aube de rotor, et compresseur avec une telle aube - Google Patents

Aube de rotor, procédé de fabrication d'une aube de rotor, et compresseur avec une telle aube Download PDF

Info

Publication number
EP2045444B1
EP2045444B1 EP08165091.3A EP08165091A EP2045444B1 EP 2045444 B1 EP2045444 B1 EP 2045444B1 EP 08165091 A EP08165091 A EP 08165091A EP 2045444 B1 EP2045444 B1 EP 2045444B1
Authority
EP
European Patent Office
Prior art keywords
blade
rotor
relief groove
blade root
axis
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
EP08165091.3A
Other languages
German (de)
English (en)
Other versions
EP2045444A1 (fr
Inventor
Thomas Müller
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 EP2045444A1 publication Critical patent/EP2045444A1/fr
Application granted granted Critical
Publication of EP2045444B1 publication Critical patent/EP2045444B1/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
    • F01D5/30—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
    • 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
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/10—Manufacture by removing material
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/25—Manufacture essentially without removing material by forging
    • 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
    • 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
    • F05D2250/71—Shape curved
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • 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
    • Y10T29/49336—Blade making
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303752—Process

Definitions

  • the present invention relates to the field of turbomachinery. It relates to a rotor of a turbomachine according to the preamble of claim 1, a method for producing a rotor, and a compressor with such a rotor.
  • the buckets of a compressor are part of an axial compressor system that moves and compresses large quantities of air needed for the proper and safe operation of a gas turbine system.
  • the blades are on the outer circumference of the rotor of the Compressor mounted and are exposed to a variety of mechanical loads, which are particularly based on the type of blade attachment.
  • a rotor blade 13 or 27 is respectively arranged, which comprises an airfoil 14 and with a downwardly adjoining the airfoil 14 T-shaped blade root 15 and 25 (see Fig. 6 ) abuts the side surfaces of the adjacent intermediate pieces 12, 18 and engages with circumferentially protruding projections 16, 16 'and 26, 26' under the adjacent intermediate pieces 12, 18.
  • the intermediate pieces 12, 18 and the blades 13 and 27 are arranged obliquely to the rotor axis A2 standing, so that the blade axis (A1 in Fig. 5 ) with the rotor axis A2 an angle of for example 25 ° includes (see Fig. 5 ).
  • the T-shaped blade roots 25 of the compressor blades 27 have been forged (forged) by upset forging so as to obtain a strength-determining grain structure as shown in FIG Fig. 6 is indicated by the dashed lines.
  • the idea was not to forge the blade roots, but to make them by milling (grain structure in Fig. 4 ).
  • the forging radius 29 is approximately in the range between 0.5 and 1.0 mm (FIG. Fig. 6 ). Due to the notch factor, milled blade feet at the transitions require a radius that is about 1.5 to 2 times greater than the forging radius 29.
  • bulging 31 causes bulges 31 on the shaft above the projections 26, 26 '(in FIG Fig. 6 this is indicated by the dotted lines), which are in the range of 0.3 to 0.5 mm.
  • bulging 31 causes bulges 31 on the shaft above the projections 26, 26 '(in FIG Fig. 6 this is indicated by the dotted lines), which are in the range of 0.3 to 0.5 mm.
  • the publication JP-2005 220825 discloses a blade (for a steam turbine) having a foot with a T-shaped cross-sectional profile.
  • the blade is inserted with the foot in a circumferential groove in the rotor so that the projections of the foot protrude in the axial direction.
  • the geometry orientation of the foot relative to the airfoil is thus different than in the rotor of the present invention.
  • T-shaped blade root of the blade is milled that to reduce the mechanical stresses on the transitions of the blade root to the projections in each case an extending in the axial direction undercut is provided, and that the undercut follows in the direction of the blade axis an elliptical curve.
  • the inventive compressor has a rotor which is equipped with blades according to the invention.
  • the undercut can be a standard undercut to ISO standard.
  • the undercut is then an undercut type E or F according to DIN standard 509.
  • the spacers each have a chamfer at their adjoining the blade root side surfaces
  • the undercut has a deviating from a standard undercut to ISO standard, increased height, which the bevel exploits.
  • the height of the undercut can correspond approximately to the height of the bevel.
  • the undercut has a radius that is 1.5-2 times the radius of a comparable upset formed blade root.
  • the radius is 1.5 mm with a compression radius of 0.8, or 1.75 mm with a compression radius of 1.0.
  • a preferred embodiment of the method according to the invention is characterized in that for milling the undercuts a deviating from the spherical shape milling tool is used.
  • undercut which is preferably realized taking into account the lateral bevels formed on the intermediate pieces.
  • undercuts are first undercuts according to ISO standard in question, which are listed under the DIN standard 509 as undercuts form E and F.
  • the undercut of type E only cuts into one of the two adjoining surfaces that are perpendicular to each other, while the undercut of type F cuts into both surfaces.
  • Both undercut types have special outlet areas (32, 33 in Fig. 3 ), which serve the additional stress relief in the radius.
  • the blades with forged blade root can be replaced by the cheaper blades with milled blade root without losses in the Lifetime must be accepted.
  • the adjacent intermediate pieces 12, 18 need not be changed or additionally processed.
  • the contact surface between the blade root (15 in Fig. 3 ) and the adjacent intermediate pieces 12 and 18 is limited by the chamfers 17 and 19 on the side surfaces of the intermediate pieces 12, 18, but also determined, so that the type of undercut 21 within the region of the chamfers 17, 19 has no influence on the contact surface ( Fig. 3 ). Accordingly, the blades are always held in the same way between the intermediate pieces 12, 18, regardless of whether the blade root is forged ( Fig. 6 ) or milled ( Fig. 4 ). It also follows that the natural frequencies (resonances) of the blades do not change, so that there is complete interchangeability between the differently manufactured blades.
  • a standard undercut type F cuts - as already mentioned above - in both adjacent vertical surfaces in the corners of the projections 16, 16 'of the blade root 15 ( Fig. 4a ). This is the only way to achieve the increased radius for the desired equal or longer life over forged blade roots.
  • a standard F-cut can only be produced by means of a milling process if the undercut is simultaneously moved in the direction of the blade axis A1 along an elliptical processing path (23 in FIG Fig. 5 ).
  • the undercut can only be milled with a great deal of effort, since this is what the in Fig. 4a shown small milling tool 28 with a spherical milling head (head diameter (2 x radius R2): 2-3 mm, shank diameter: 1.5-2 mm) must be used.
  • modified undercut 21 used, which is characterized by an increased height h in the direction of the longitudinal axis of the blade.
  • the height h of the undercut 21 may correspond to the entire length of the chamfer 17, 19 on the side surfaces of the intermediate pieces 12, 18.
  • the increase in the height h compared to the standard undercut 30 makes it possible, according to Fig. 4 to use a larger milling tool 22 with a radius R1> R2 (R1 is eg 1.75 mm), which significantly reduces costs and processing times (dashed hatch in Fig. 4 indicates that the blade root 15 is milled and not forged).

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)

Claims (9)

  1. Rotor (10) d'une turbomachine, notamment d'un compresseur d'une turbine à gaz, comprenant une rainure (11), disposée sur le pourtour extérieur du rotor (10) et circulaire autour d'un axe de rotor (A2), et au moins une aube mobile (13), ladite aube mobile (13) comprenant une pale (14) et une emplanture d'aube (15), rattachée à l'extrémité inférieure de la pale (14) et s'étendant le long d'un axe de pale (A1) en biais par rapport à l'axe de rotor (A2), avec laquelle l'aube mobile (13) est maintenue dans la rainure (11) entre deux pièces intermédiaires (12, 18) qui se suivent l'une l'autre dans le sens du pourtour, lesquelles sont pour leur part maintenues dans la rainure (11), l'emplanture d'aube (15), du fait de parties en saillie (16, 16') qui s'étendent dans le sens du pourtour, ayant une section transversale configurée en forme de T et venant en prise avec les parties en saillie (16, 16') sous les pièces intermédiaires (12, 18) adjacentes, et les pièces intermédiaires (12, 18) étant en prise avec des surfaces de maintien (20) dans des contre-dépouilles (24) dans la rainure (11) en direction de l'axe de pale (A1), caractérisé en ce que l'emplanture d'aube (15) en forme de T est fraisée, en ce que pour réduire les contraintes mécaniques au niveau des transitions entre l'emplanture d'aube (15) et les parties en saillie (16, 16'), il existe à chaque fois une rainure de dégagement (21, 30) qui s'étend dans la direction de l'axe de pale (A1), et en ce que la rainure de dégagement (21, 30) suit un tracé de courbe elliptique (23) dans la direction de l'axe de pale (A1).
  2. Rotor selon la revendication 1, caractérisé en ce que la rainure de dégagement (30) est une rainure de dégagement normalisée selon la norme ISO.
  3. Rotor selon la revendication 2, caractérisé en ce que la rainure de dégagement (30) est une rainure de dégagement de type E ou F selon la norme DIN 509.
  4. Rotor selon la revendication 1, caractérisé en ce que les pièces intermédiaires (12, 18) possèdent respectivement un chanfreinage (17, 19) sur leurs surfaces latérales adjacentes à l'emplanture d'aube (15), et en ce que la rainure de dégagement (21) possède une hauteur (h) plus grande, différente de celle d'une rainure de dégagement normalisée selon la norme ISO.
  5. Rotor selon la revendication 4, caractérisé en ce que la hauteur (h) de la rainure de dégagement (21) correspond approximativement à la hauteur du chanfreinage (17, 19).
  6. Rotor selon la revendication 4 ou 5, caractérisé en ce que la rainure de dégagement (21) possède un rayon (R1) qui correspond à 1, 5 - 2 fois le rayon d'une emplanture d'aube comparable façonnée par forgeage par refoulement.
  7. Procédé de fabrication d'un rotor selon l'une des revendications 1 à 6, caractérisé en ce que lors de la fabrication de l'au moins une aube mobile (13), dans une première étape, la forme en T de l'emplanture d'aube (15) est produite par une opération de fraisage, en ce que dans une deuxième étape les rainures de dégagement (21, 30) sont fraisées dans l'emplanture d'aube (15), et en ce que les rainures de dégagement (21, 30) sont fraisées le long d'un chemin d'usinage (23) elliptique dans la direction de l'axe de pale (A1).
  8. Procédé selon la revendication 7, caractérisé en ce qu'un outil de fraisage (22) différent de la forme sphérique est utilisé pour fraiser les rainures de dégagement (21).
  9. Compresseur, notamment pour une turbine à gaz, caractérisé en ce qu'il possède un rotor (10) selon l'une des revendications 1 à 6.
EP08165091.3A 2007-10-01 2008-09-25 Aube de rotor, procédé de fabrication d'une aube de rotor, et compresseur avec une telle aube Active EP2045444B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH15272007 2007-10-01

Publications (2)

Publication Number Publication Date
EP2045444A1 EP2045444A1 (fr) 2009-04-08
EP2045444B1 true EP2045444B1 (fr) 2015-11-18

Family

ID=38896001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08165091.3A Active EP2045444B1 (fr) 2007-10-01 2008-09-25 Aube de rotor, procédé de fabrication d'une aube de rotor, et compresseur avec une telle aube

Country Status (4)

Country Link
US (1) US8257047B2 (fr)
EP (1) EP2045444B1 (fr)
JP (1) JP2009085224A (fr)
CA (1) CA2640028C (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH702203A1 (de) * 2009-11-10 2011-05-13 Alstom Technology Ltd Rotor für eine axial durchströmte turbomaschine sowie laufschaufel für einen solchen rotor.
EP2320030B1 (fr) 2009-11-10 2012-12-19 Alstom Technology Ltd Rotor et aube de rotor pour une turbomachine axiale
DE102010004854A1 (de) * 2010-01-16 2011-07-21 MTU Aero Engines GmbH, 80995 Laufschaufel für eine Strömungsmaschine und Strömungsmaschine
CH704617A1 (de) * 2011-03-07 2012-09-14 Alstom Technology Ltd Laufschaufelanordnung einer Strömungsmaschine.
FR2972380A1 (fr) * 2011-03-11 2012-09-14 Alstom Technology Ltd Procede de fabrication d'un diaphragme de turbine a vapeur
CH704825A1 (de) * 2011-03-31 2012-10-15 Alstom Technology Ltd Turbomaschinenrotor.
CH705377A1 (de) * 2011-08-09 2013-02-15 Alstom Technology Ltd Verfahren zur Rekonditionierung eines Rotors einer Strömungsmaschine.
DE102011082850A1 (de) 2011-09-16 2013-03-21 Siemens Aktiengesellschaft Verdichterschaufel und Verfahren zu ihrer Herstellung
US9359905B2 (en) 2012-02-27 2016-06-07 Solar Turbines Incorporated Turbine engine rotor blade groove
GB2520203A (en) * 2012-09-06 2015-05-13 Solar Turbines Inc Gas turbine engine compressor undercut spacer
US20140064946A1 (en) * 2012-09-06 2014-03-06 Solar Turbines Incorporated Gas turbine engine compressor undercut spacer
US20140119821A1 (en) * 2012-10-30 2014-05-01 Jeffrey Lee Bertelsen Insert slot and method of forming an insert slot in a rotary hand slip
EP2860361B1 (fr) 2013-10-08 2017-03-01 MTU Aero Engines GmbH Support d'élément et turbomachine
US9739159B2 (en) 2013-10-09 2017-08-22 General Electric Company Method and system for relieving turbine rotor blade dovetail stress
EP3015652A1 (fr) * 2014-10-28 2016-05-04 Siemens Aktiengesellschaft Aube mobile de turbine
CN111571153A (zh) * 2020-05-29 2020-08-25 重庆水轮机厂有限责任公司 一种转桨式水轮机桨叶叶型加工方法
CN113914999B (zh) * 2021-12-14 2022-03-18 成都中科翼能科技有限公司 一种燃气轮机压气机装配方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR451147A (fr) * 1912-11-28 1913-04-11 Westinghouse Machine Co Perfectionnements aux turbines à fluide sous pression
DE318662C (fr) 1918-02-18
DE437049C (de) 1923-01-19 1926-11-12 Aeg Verfahren zur Herstellung von Turbinenschaufeln
US2857132A (en) * 1952-02-19 1958-10-21 Gen Motors Corp Turbine wheel
DE1005530B (de) * 1955-06-23 1957-04-04 Paul Miesbeck Befestigung der Laufschaufeln von Kreiselmaschinen, insbesondere Dampf- und Gasturbinen
US4272953A (en) * 1978-10-26 1981-06-16 Rice Ivan G Reheat gas turbine combined with steam turbine
JPS59226202A (ja) * 1983-06-06 1984-12-19 Toshiba Corp タ−ビン動翼
CZ406592A3 (en) * 1992-01-08 1993-08-11 Alsthom Gec Drum rotor for steam action turbine and steam action turbine comprising such rotor
DE4435268A1 (de) * 1994-10-01 1996-04-04 Abb Management Ag Beschaufelter Rotor einer Turbomaschine
JP3462695B2 (ja) * 1997-03-12 2003-11-05 三菱重工業株式会社 ガスタービン動翼シール板
DE50010348D1 (de) * 2000-03-01 2005-06-23 Alstom Technology Ltd Baden Befestigung von Laufschaufeln in einer Turbomaschine
JP2005220825A (ja) 2004-02-06 2005-08-18 Mitsubishi Heavy Ind Ltd タービン動翼
EP1698758B1 (fr) 2005-02-23 2015-11-11 Alstom Technology Ltd Fermeture de rotor à fente axiale
DE102005048883A1 (de) 2005-10-12 2007-04-19 Alstom Technology Ltd. Turbinenschaufel und Turbinenlaufradbaugruppe

Also Published As

Publication number Publication date
CA2640028C (fr) 2015-11-03
US8257047B2 (en) 2012-09-04
EP2045444A1 (fr) 2009-04-08
JP2009085224A (ja) 2009-04-23
CA2640028A1 (fr) 2009-04-01
US20090087316A1 (en) 2009-04-02

Similar Documents

Publication Publication Date Title
EP2045444B1 (fr) Aube de rotor, procédé de fabrication d'une aube de rotor, et compresseur avec une telle aube
EP0906514B1 (fr) Rotor pour une turbomachine avec des pales a monter dans des rainures et pales pour un rotor
EP2376746B1 (fr) Plateforme d'extrémité d' aube
EP3170598A1 (fr) Tête de fraise, tige de fraise et fraise vissable
EP1803900A1 (fr) Ensemble de fermeture pour clore l'interstice restant entre la première et la dernière des aubes d'un anneau aubagé disposées dans la rainure circonférencielle d'une turbomachine, et turbomachine correspondante
EP2378065B1 (fr) Procédé de réparation d'un agencement de rotor d'une turbomachine.
EP3999717B1 (fr) Élément intermédiaire pour une connexion aube-disque de rotor pour le rotor d'une turbomachine, rotor pour une turbomachine et turbomachine
EP2846000A2 (fr) Roue statorique d'une turbine à gaz
WO1996013668A1 (fr) Compresseur radial ou turbine radiale avec un diffuseur ou une couronne directrice de turbine a aubes directrices
EP2419234A1 (fr) Outil de fraisage doté d'une alimentation en agent de refroidissement/de lubrification située à l'intérieur de celui-ci
EP1022439B1 (fr) Carter de turbine à vapeur ou à gaz
EP3287608A1 (fr) Bague intérieure d'une couronne d'aubes directrices d'une turbomachine
EP2139640A1 (fr) Semi-produit permettant de réparer une aube pour une turbine à gaz et procédé de réparation d'une aube pour une turbine à gaz
EP2394028B1 (fr) Dispositif d'étanchéité sur l'arbre à aubes d'un étage de rotor d'une turbomachine axiale et son utilisation
EP2344769A1 (fr) Rotor de pompe à vide
EP3375986B1 (fr) Composant de turbomachine
EP2860352A1 (fr) Rotor, procédé de manufacture et aube associés
CH705377A1 (de) Verfahren zur Rekonditionierung eines Rotors einer Strömungsmaschine.
EP3015652A1 (fr) Aube mobile de turbine
EP2873808B1 (fr) Composé aubes-disques, procédé et turbomachine
DE19802115C2 (de) Pumpenwelle mit einem Laufrad für Hauptkühlmittelpumpen
EP3140554B1 (fr) Élément de fixation, en particulier pour soufflets, présentant une zone de contredépouille intérieure
WO2014044238A2 (fr) Outil de coupe entraînable en rotation
EP1402151A1 (fr) Fixation d'aubes
EP3246521B1 (fr) Rampe pour plaque de recouvrement d'aube directrice et embase d'aube mobile

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

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20091027

AKX Designation fees paid

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

17Q First examination report despatched

Effective date: 20120329

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150701

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK 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: 761693

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151215

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: 502008013592

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160218

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: 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: 20160218

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: 20151118

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: 20151118

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: 20151118

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: 20151118

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: 20151118

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: 20160318

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: 20151118

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: 20160318

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: 20160219

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: 20151118

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: 20151118

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: 20151118

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH, CH

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

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: 20151118

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008013592

Country of ref document: DE

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

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: 20151118

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: 20151118

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: 20151118

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: 20151118

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

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008013592

Country of ref document: DE

Representative=s name: RUEGER | ABEL PATENT- UND RECHTSANWAELTE, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008013592

Country of ref document: DE

Representative=s name: RUEGER ABEL PATENTANWAELTE PARTGMBB, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008013592

Country of ref document: DE

Representative=s name: RUEGER, BARTHELT & ABEL, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008013592

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: R082

Ref document number: 502008013592

Country of ref document: DE

Representative=s name: RUEGER ABEL PATENT- UND RECHTSANWAELTE, DE

26N No opposition filed

Effective date: 20160819

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

Ref country code: CH

Payment date: 20160927

Year of fee payment: 9

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: 20151118

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: 20160930

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: 20151118

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

Effective date: 20160925

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170531

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: 20160925

Ref country code: GB

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

Effective date: 20160925

Ref country code: FR

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

Effective date: 20160930

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: 20160925

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 761693

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160925

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20160930

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: 20160925

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

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: 20080925

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: 20151118

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: 20151118

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: 20151118

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: 20151118

Ref country code: LI

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

Effective date: 20170930

Ref country code: CH

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

Effective date: 20170930

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522

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

Ref country code: DE

Payment date: 20230822

Year of fee payment: 16