EP2455588B1 - Sicherungsmittel zur axialen Sicherung eines Schaufelfußes einer Turbomaschinenschaufel - Google Patents

Sicherungsmittel zur axialen Sicherung eines Schaufelfußes einer Turbomaschinenschaufel Download PDF

Info

Publication number
EP2455588B1
EP2455588B1 EP10191240.0A EP10191240A EP2455588B1 EP 2455588 B1 EP2455588 B1 EP 2455588B1 EP 10191240 A EP10191240 A EP 10191240A EP 2455588 B1 EP2455588 B1 EP 2455588B1
Authority
EP
European Patent Office
Prior art keywords
groove
radius
turbomachine
securing
securing means
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
EP10191240.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2455588A1 (de
Inventor
Rudolf Stanka
Manfred Dopfer
Martin Pernleitner
Wilfried SCHÜTTE
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 ES10191240.0T priority Critical patent/ES2620424T3/es
Priority to EP10191240.0A priority patent/EP2455588B1/de
Priority to US13/885,045 priority patent/US9470099B2/en
Priority to PCT/DE2011/001985 priority patent/WO2012065599A1/de
Publication of EP2455588A1 publication Critical patent/EP2455588A1/de
Application granted granted Critical
Publication of EP2455588B1 publication Critical patent/EP2455588B1/de
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
    • F01D5/3007—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
    • F01D5/12—Blades
    • F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F01D5/3092—Protective layers between blade root and rotor disc surfaces, e.g. anti-friction layers
    • 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
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/501—Elasticity

Definitions

  • the invention relates to a turbomachine with a securing means for the axial securing of a blade root of a blade of the turbomachine according to the preamble of claim 1.
  • the blade has a blade root that has a fir tree shape.
  • the blade root of the blade is inserted into the correspondingly shaped axial groove. Due to the design of the blade root, the blade can be secured in the radial direction to the rotor axis.
  • a locking plate is provided between the blade root and the rotor.
  • the locking plate has at its ends in Rotorachsplatz folding folding straps, by means of which the blade is secured in the axial direction.
  • the safety plate has a rounded shape in the axial normal cross-section.
  • a disadvantage of the known securing element is that the contact area between the locking plate and the groove is small. Thus, a groove wall and / or a locking plate can be damaged if the transmitted from the blade and the locking plate on the groove wall force is large. Such a force can arise, for example, when a vibrating blade abuts against the groove wall.
  • Object of the present invention is therefore to improve the axial securing of a blade.
  • a turbomachine with a securing means according to the preamble of claim 1 is further developed by its characterizing features.
  • a turbomachine with a securing means for axially securing a blade root of a blade in a groove of a rotor of the turbomachine is provided.
  • an outer contour of the securing means which faces the groove inner wall, in particular a groove base, facing the groove, at least partially curved, wherein the outer contour has regions of different radii.
  • the groove wall is composed of the groove base and groove sides.
  • the groove sides are connected to the respective end of the groove base and extend from the groove bottom in the direction of a rotor outer side.
  • the area of the outer contour of the mounted securing means which can be brought into contact with a slot contact area is understood as the securing means contact area.
  • the region of the groove wall which can be brought into contact with the securing agent contact region is understood as the groove contact region in the sense of the invention.
  • the groove contact region may be provided in the groove base and / or on the groove side. As the contact area, the area between the securing means and the groove wall is referred to, which adjusts upon contact of the securing means and the groove wall.
  • the turbomachine according to the invention may in particular be a gas or steam turbine and preferably an aircraft engine.
  • a plurality of distributed over the circumference of the rotor grooves are introduced, which may in particular each extend in a Rotorachsraum.
  • the bucket may have an airfoil and a blade root and will over the blade root in one Schaufelfußbefest Trents Kunststoff the groove of the rotor positionally anchored in the radial direction to the rotor axis.
  • the geometry of the blade roots may preferably be Tannenbaum-, dovetail or hammerhead-like design.
  • the grooves may have in the Nutachsnormalquerexcellent a groove portion which is closer to the rotor axis in the radial direction than the Schaufelfußbefest Trents Symposium, preferably an elliptical, circular or other shape.
  • the securing means can be matched to the groove or arranged in the groove such that forms a gap between the outer contour of the mounted securing means and the groove wall, in particular the groove bottom.
  • the securing means may be connected at its side facing the blade root side with a securing means facing side of the blade root.
  • the outer contour of the securing means may have at least two different radii, which are selected such that the contact area between securing means and groove wall increases.
  • a radius can be chosen such that it is greater than the other two radii.
  • a portion of the outer contour with the largest radius is formed such that the portion is longer than the remaining portions of the outer contour.
  • the section with the largest radius can be arranged between the other two sections.
  • the securing means which may be formed, for example, as a locking plate, in a portion of the outer contour may have a radius which is at least substantially the same value has like a radius of the NutWalletrios.
  • the groove in the Nutachsnormalquerrough an ellipse-like or other shape with varying radius of curvature is understood as the radius of the NutWalletrios in particular a radius of curvature of the NutWalletrios.
  • the portion of the outer contour of the securing element which has the same radius as the groove contact area may be that portion of the outer contour that has the largest radius and is longer than the other section (s).
  • the respective portion of the securing means and the NutWallet Schemes can be optimally matched to each other, so that the risk of damage to the NutWalletrios and / or securing means is reduced.
  • the outer contour of the securing means facing the groove wall in particular the groove base, can have two curved securing agent contact areas and a straight section.
  • the two securing means contact areas may be provided at opposite ends of the securing means relative to a securing axis which is transverse to the rotor axis.
  • the straight portion of the outer contour is disposed between the two securing means contact areas and connected at the ends to the respective securing means contact area.
  • the individual securing agent contact areas in the outer contour can be identical or different from each other.
  • the length of the sections and / or the radii of the sections in all securing agent contact areas may be the same or different.
  • the respective securing agent contact area can be adapted to the formation of the groove wall.
  • the securing means contact area can be adapted such that the contact area between the securing means and the groove wall increases.
  • the at least one securing means contact area is provided on the outer contour such that no self-locking of the securing means occurs upon contact of the securing means with the groove wall.
  • the Fuse means contact area formed in a region of the outer contour such that forms upon contact of the securing means with the groove wall of the NutWallet Scheme in a region of the groove wall, which is located outside of a self-locking region.
  • the NutWallet Society lies outside of the self-locking region, when an angle of inclination between a tangent to the groove wall and a straight line which is perpendicular to a connecting line between the rotor axis and a groove center, is greater than the arcus tangens the coefficient of friction in the contact area.
  • the Hemunung understood a movement of the securing means by friction between the securing means and the groove wall. In this case, no self-locking occurs when the static friction of the securing means is exceeded.
  • the self-locking essentially depends on the aforementioned inclination angle of the groove wall and a coefficient of friction of the groove contact region.
  • there is a self-locking when a tangent to the groove wall with the straight line, which is perpendicular to the connecting line between the rotor axis and the groove center forms an angle whose tang is less than or equal to the coefficient of friction.
  • the securing means may consist of an elastic material and / or have an elastic region.
  • the elastic region may be formed, for example, by a wave-shaped design of the securing means in Rotorachsplatz.
  • the securing means may at its ends in Rotorachsplatz folding folding fasteners, in particular one or more tabs have.
  • FIG. 1 shown section of a cross section of a turbomachine 1, a single of the circumferential direction of a rotor 10 of the turbomachine 1 juxtaposed grooves 11 is shown.
  • the groove 11 extends in a Rotorachsplatz and is ellipsenformig in Nutachsnormalquerrough in close to the rotor axis M area.
  • the groove 11 has a groove wall which consists of a groove base 33 and two groove sides 34.
  • the groove sides 34 are connected to the respective end of the groove base 33 and extend from the groove base 33 in the direction of a rotor outer side 13.
  • the groove base 33 corresponds to the side of the ellipse, which has the largest curvature radius.
  • FIG. 1 a portion of a blade root 12 of a blade, not shown, which is at least partially disposed in the groove 11 and connected to an airfoil, not shown.
  • a securing means 20 is provided between the blade root 12 and the rotor 10.
  • the securing means 20 is connected at its side facing the blade root 12 with this side such that a gap 30 is formed between the outer contour 24 of the securing means 20 facing the groove base 33 and the groove base 33.
  • the securing means 20 has two curved securing agent contact regions 21 and a straight section 23 on its outer contour 24 facing the groove base 33.
  • the securing means contact region 21 are arranged on opposite sides of the securing means 20 relative to a securing means axis Q, which runs transversely to a rotor axis M.
  • the straight portion 23 is provided between the two securing means contact areas 21 and connected at its ends to the respective securing means contact area 21.
  • the securing agent contact regions 21 each have three sections with different radii R1, R2, R3, wherein a first section has a first radius R1, a second section a second radius R2 and a third portion has a third radius R3.
  • the second radius R2 of the second portion of the securing means contact region 21 corresponds to a radius of curvature of a groove contact region 31 of the groove wall, which lies opposite the corresponding securing agent contact region 21.
  • the second radius R2 is greater than the first and third radius R1, R3.
  • the second portion having the radius R2 of the securing agent contacting portion 21 is disposed between the first portion having the radius R1 and the third portion having the radius R3, and is made longer than the first and second portions of the securing agent contacting portion 21.
  • the two securing means contact regions 21 are arranged on the outer contour 24 of the securing means 20 such that they contact the NutWallet Scheme 31 in a region of the groove bottom 33 and / or the groove sides 34, which is located outside of a self-locking portion of the securing means 20.
  • a contacting of the groove base 33 and / or the groove sides 34 by the securing means 20 can take place, for example, if the blades vibrate in the radial direction to the rotor axis M and / or the groove shape changes due to a temperature change, in particular temperature increase of the rotor 10.

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)
EP10191240.0A 2010-11-15 2010-11-15 Sicherungsmittel zur axialen Sicherung eines Schaufelfußes einer Turbomaschinenschaufel Active EP2455588B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES10191240.0T ES2620424T3 (es) 2010-11-15 2010-11-15 Turbomáquina con unos medios de sujeción para la sujeción axial de una raíz de álabe
EP10191240.0A EP2455588B1 (de) 2010-11-15 2010-11-15 Sicherungsmittel zur axialen Sicherung eines Schaufelfußes einer Turbomaschinenschaufel
US13/885,045 US9470099B2 (en) 2010-11-15 2011-11-11 Securing device for axially securing a blade root of a turbomachine blade
PCT/DE2011/001985 WO2012065599A1 (de) 2010-11-15 2011-11-11 Sicherungsmittel zur axialen sicherung eines schaufelfusses einer turbomaschinenschaufel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10191240.0A EP2455588B1 (de) 2010-11-15 2010-11-15 Sicherungsmittel zur axialen Sicherung eines Schaufelfußes einer Turbomaschinenschaufel

Publications (2)

Publication Number Publication Date
EP2455588A1 EP2455588A1 (de) 2012-05-23
EP2455588B1 true EP2455588B1 (de) 2017-03-01

Family

ID=43897179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10191240.0A Active EP2455588B1 (de) 2010-11-15 2010-11-15 Sicherungsmittel zur axialen Sicherung eines Schaufelfußes einer Turbomaschinenschaufel

Country Status (4)

Country Link
US (1) US9470099B2 (es)
EP (1) EP2455588B1 (es)
ES (1) ES2620424T3 (es)
WO (1) WO2012065599A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3128245A1 (fr) * 2021-10-19 2023-04-21 Safran Aircraft Engines Procede de fabrication d’une piece de rotor de turbomachine comprenant des portions arrondies optimisees et piece de turbomachine correspondante

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0699824A1 (de) * 1994-08-29 1996-03-06 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Einrichtung zur Laufschaufelfixierung und zur Beseitigung von Rotorwuchten bei axial durchströmten Verdichtern oder Turbinen von Gasturbinentriebwerken

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936234A (en) * 1975-02-10 1976-02-03 General Electric Company Device for locking turbomachinery blades
DE2639200A1 (de) 1976-08-31 1978-03-09 Volkswagenwerk Ag Laufrad fuer axialturbinen, insbesondere fuer gasturbinen
US5123813A (en) * 1991-03-01 1992-06-23 General Electric Company Apparatus for preloading an airfoil blade in a gas turbine engine
DE4300773C1 (de) 1993-01-14 1993-11-18 Mtu Muenchen Gmbh Einrichtung zur axialen Laufschaufelsicherung und zur Beseitigung von Rotorunwuchten für axial durchströmte Verdichter oder Turbinen
WO1996041068A1 (en) * 1995-06-07 1996-12-19 National Research Council Of Canada Anti-fretting barrier
DE19823157A1 (de) 1998-05-23 1999-11-25 Asea Brown Boveri Einrichtung zur Befestigung der Laufschaufeln axial durchströmter Turbomaschinen
US6582195B2 (en) * 2001-06-27 2003-06-24 General Electric Company Compressor rotor blade spacer apparatus
US6773234B2 (en) * 2002-10-18 2004-08-10 General Electric Company Methods and apparatus for facilitating preventing failure of gas turbine engine blades
JP2005273646A (ja) 2004-02-25 2005-10-06 Mitsubishi Heavy Ind Ltd 動翼体及びこの動翼体を有する回転機械
FR2918129B1 (fr) 2007-06-26 2009-10-30 Snecma Sa Perfectionnement a une cale intercalee entre un pied d'aube et le fond de l'alveole du disque dans laquelle il est monte
FR2937370B1 (fr) * 2008-10-16 2013-06-14 Snecma Disque de roue de turbine.
US8186961B2 (en) * 2009-01-23 2012-05-29 Pratt & Whitney Canada Corp. Blade preloading system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0699824A1 (de) * 1994-08-29 1996-03-06 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Einrichtung zur Laufschaufelfixierung und zur Beseitigung von Rotorwuchten bei axial durchströmten Verdichtern oder Turbinen von Gasturbinentriebwerken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3128245A1 (fr) * 2021-10-19 2023-04-21 Safran Aircraft Engines Procede de fabrication d’une piece de rotor de turbomachine comprenant des portions arrondies optimisees et piece de turbomachine correspondante

Also Published As

Publication number Publication date
ES2620424T3 (es) 2017-06-28
WO2012065599A1 (de) 2012-05-24
EP2455588A1 (de) 2012-05-23
US20130251532A1 (en) 2013-09-26
US9470099B2 (en) 2016-10-18

Similar Documents

Publication Publication Date Title
DE10350627B4 (de) Turbinenrotor- und Schaufelanordnung, Vorspannfedersegment und zugehöriges Verfahren für Dampfturbinenschaufeln der Reaktionsbauart
EP2320030B1 (de) Rotor mit Laufschaufel für eine axial durchströmte Turbomaschine
EP1922471A1 (de) Anordnung zur axialsicherung von laufschaufeln in einem rotor sowie verwendung
CH701141B1 (de) Schwalbenschwanzhalterungssystem für um den Umfang einzusetzende Laufradschwalbenschwänze.
EP1584793B1 (de) Turbinenschaufelarretiervorrichtung zur axialen Sicherung einer Turbinenschaufel
EP1092081B1 (de) Rotor für eine turbomaschine
EP2617945B1 (de) Rotor für eine Strömungsmaschine sowie Verfahren zu dessen Herstellung
EP3056677B1 (de) Schaufel und Strömungsmaschine
EP3043085A1 (de) Schaufelanordnung für eine axial durchströmbare thermische Strömungsmaschine sowie Verfahren zur Montage eines Dämpferelements zwischen zwei Schaufeln eines Schaufelkranzes einer thermischen Strömungsmaschine
EP1616081B1 (de) Laufschaufel, insbesondere für eine gasturbine
EP2646656B1 (de) Dämpfungsmittel zum dämpfen einer schaufelbewegung einer turbomaschine
EP1657404B1 (de) Rotor einer Turbomaschine, insbesondere Gasturbinenrotor
DE102010031213A1 (de) Rotor einer Turbomaschine
WO2005054682A1 (de) Rotor für einen verdichter
EP2455588B1 (de) Sicherungsmittel zur axialen Sicherung eines Schaufelfußes einer Turbomaschinenschaufel
EP2617946A2 (de) System zur Vorgabe einer Einbauposition von Laufschaufeln, Sicherungselement, Laufschaufel, Turbomaschine sowie Verfahren
EP3312388A1 (de) Pultdach dichtfin
EP2090751A1 (de) Laufschaufel für eine Turbomaschine
EP1507958A1 (de) Axialsicherung fuer laufschaufeln
EP3183430B1 (de) Turbinenlaufschaufel
WO2010000228A2 (de) Laufschaufel und strömungsmaschine mit laufschaufel
EP2873808B1 (de) Schaufel-Scheiben-Verbund, Verfahren und Strömungsmaschine
DE112019006421T5 (de) Rotorschaufel und scheibe eines rotationskörpers
DE102016205921B4 (de) Rotorscheibenanordnung mit zweiteiliger Dichtung
EP2982834B1 (de) Wälzlager, insbesondere nadellager, zur anordnung an einem drehzapfen einer variablen leitschaufel 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: 20110620

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

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

Owner name: MTU AERO ENGINES AG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20161027

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: AT

Ref legal event code: REF

Ref document number: 871601

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170315

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: 502010013232

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2620424

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20170628

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170301

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: 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: 20170602

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: 20170301

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: 20170301

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: 20170301

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: 20170601

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

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: 20170301

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: 20170601

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: 20170301

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: 20170301

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

Ref country code: NL

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

Effective date: 20170301

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: 20170301

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: 20170301

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: 20170301

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: 20170301

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: 20170301

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

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

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: 20170703

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: 20170701

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: 20170301

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: 20170301

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010013232

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: 20170301

26N No opposition filed

Effective date: 20171204

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: 20170301

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: 20170301

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

Ref country code: LI

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

Effective date: 20171130

Ref country code: CH

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

Effective date: 20171130

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: 20171115

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171130

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: 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: 20170301

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: 20171115

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: 20171130

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 871601

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171115

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: 20171115

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: 20101115

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 NON-PAYMENT OF DUE FEES

Effective date: 20170301

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: 20170301

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: 20170301

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: 20170301

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

Ref country code: GB

Payment date: 20231123

Year of fee payment: 14

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

Ref country code: ES

Payment date: 20231215

Year of fee payment: 14

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

Ref country code: FR

Payment date: 20231124

Year of fee payment: 14

Ref country code: DE

Payment date: 20231120

Year of fee payment: 14