EP2117777B1 - Vorrichtung und verfahren zum oberflächenstrahlen eines bauteils einer gasturbine - Google Patents

Vorrichtung und verfahren zum oberflächenstrahlen eines bauteils einer gasturbine Download PDF

Info

Publication number
EP2117777B1
EP2117777B1 EP07856056A EP07856056A EP2117777B1 EP 2117777 B1 EP2117777 B1 EP 2117777B1 EP 07856056 A EP07856056 A EP 07856056A EP 07856056 A EP07856056 A EP 07856056A EP 2117777 B1 EP2117777 B1 EP 2117777B1
Authority
EP
European Patent Office
Prior art keywords
component
shot
peening
vibration
vibration device
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
EP07856056A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2117777A1 (de
Inventor
Erwin Bayer
Max Niegl
Martin Bussmann
Thomas Peschke
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 GmbH
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 GmbH filed Critical MTU Aero Engines GmbH
Publication of EP2117777A1 publication Critical patent/EP2117777A1/de
Application granted granted Critical
Publication of EP2117777B1 publication Critical patent/EP2117777B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/005—Vibratory devices, e.g. for generating abrasive blasts by ultrasonic vibrations
    • 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
    • Y10T29/47—Burnishing
    • Y10T29/479—Burnishing by shot peening or blasting

Definitions

  • the invention relates to a device and a method for surface blasting, in particular for ultrasonic shot peening of a component of a gastrubine of the type specified in the preambles of claims 1 and 8 respectively.
  • An apparatus for surface blasting or such a method are already known from EP 1 101 568 B1 to take as designated, wherein the rotor blades of a rotor designed as a blisk can be shot peened to improve their fatigue strength.
  • the device in this case comprises a holding device, on which the rotor is rotatably held about its axis of rotation. By rotating the rotor whose rotor blades are guided through a blasting chamber, on the underside of a vibration device in the form of an ultrasonic sonotrode is arranged with an at least approximately horizontally extending oscillating surface.
  • the blasting chamber is thereby bounded both axially - ie in the region of the broad sides of the rotor - as well as radially - ie in the region of the rotor blades - the blisk by corresponding chamber walls. Since, in particular, the chamber walls of the blasting chamber, which are arranged radially to the rotor, are unable to hold all the balls within the central blasting chamber, depending on the position of the respective rotor blades, they are each preceded or arranged in the radial direction of the rotor by two further chambers. Within these further chambers, balls passing over from the central beam chamber equipped with the sonotrode are collected and returned via corresponding channels.
  • a disadvantage of this known device or the associated method is the fact that a uniform solidification of the radiating surface areas of the rotor blades is difficult to achieve. This also because of The fact that the rotor blades with respect to their central axis or the perpendicular to the axis of rotation of the rotor, a rotation, the so-called "twist".
  • Object of the present invention is to provide a device and a method of the type mentioned, with which the solidification of different surface areas of the component can be made more targeted or uniform.
  • the angular position of the surface of the at least one vibration device is adjustable relative to the surface region of the component of the gas turbine.
  • it is provided for this purpose to adjust the angular position of the surface of the vibration device relative to the surface region of the component - before and / or during surface radiation.
  • the rotation of each rotor blade generally referred to as "twist" about its central axis or perpendicular to the axis of rotation of the rotor, causes the vector of the surface normal to change significantly over the blade geometry, it is now possible for an adjustable surface of the vibration device Adjust normal vector accordingly.
  • the surface of the vibration devices can now be set so that their normal vector points directly or at the desired angle to the surface area of the component to be machined. Since the angle at which the blasting material accelerated by the surface of the vibration device has a decisive effect on the hardening of the surface area of the component to be machined, it can thus be set or adjusted uniformly by a corresponding adjustment of the angular position of the surface of the vibration device.
  • the holding device Since the component of the gas turbine itself is received by the holding device, a very good reproducible surface quality or solidification of the surface regions of the component to be machined can be achieved. In other words, the beam intensity of the surface radiation over the entire beam range can be ensured extremely homogeneously within narrow limits.
  • the angular position of the surface of the at least one vibration device is adjustable relative to the surface area during the surface blasting of the surface region of the component.
  • the various surface areas of the component can be individually processed with a matched to it surface radiation.
  • the beam intensity and the angle of incidence of the Match blasting material to the respective surface area of the component to be machined.
  • the rotor blades can be blasted in a continuous or stepped process in that the rotor is rotated at the appropriate speed.
  • the angular position of the surface of the vibration device changes accordingly.
  • a further advantageous embodiment of the invention provides that two vibration devices are provided, which have respective surfaces at an angle to one another. This makes it possible in a simple manner, a component machined synchronously on both sides, so that even complex three-dimensional component geometries can be blasted in an optimal manner.
  • the synchronous two-sided surface radiation has the great advantage that in particular thin component areas experience no delay.
  • the respective surfaces of the two vibration devices are arranged substantially V-shaped to each other.
  • the two surfaces are particularly easily adaptable to each other in their angular position, so that in particular in the two-sided blasting respectively the immediately opposite surface areas can be blasted synchronously.
  • a mirror-symmetrical arrangement provides that the respective surfaces of the two vibration devices intersect at least approximately in a central axis or a vertical of the component.
  • the at least one adjustable surface of the respective vibration device is adjustable by one or two adjustment axes.
  • the two axes are preferably perpendicular to each other, so that in a simple way a tilt and rotation angle can be adjusted.
  • a surface of the vibration device provided with two adjustment axes is characterized in particular by the fact that it can be adjusted two-dimensionally. Accordingly, of course, the normal vector of the surface is two-dimensionally adjustable.
  • the device according to the invention is designed for processing a rotor, which is rotatably supported about a rotation axis, in particular a blisk.
  • the rotor blades can thus be brought in a simple manner by rotating the rotor in the beam region of the surface of the vibrating device, being ensured by the adjustable surface that all surface areas to be processed are subjected to the desired beam intensity.
  • a simple adaptation of the blasting chamber to the respective component to be machined can be achieved in that the chamber walls are at least partially flexible.
  • the chamber walls are at least partially flexible.
  • the chamber walls of the blasting chamber are adjustable even in their angular position.
  • the reflection of the blasting material on the chamber walls can be influenced and, on the other hand, the chamber walls can easily be brought close to the respective component in order to achieve a reliable seal before the blasting material exits. It is clear that this results in a simple way to use components with different geometry or size.
  • a distribution device is provided with which the beam material can be distributed over the surface of the vibration device. Due to the inclined arrangement of the surface is thus avoided in a simple manner that blasting collects excessively at a low point of the surface. Rather, a uniform distribution of the grit can be created by the distribution device, so that over the entire surface results in a uniform beam intensity and uniform solidification of the surface region of the component.
  • a particularly simple distribution device can be realized if it comprises a vibrating surface, which is realized for example by a sonotrode, by a so-called flapper, a piezo hacker or a vibrating plate or membrane.
  • the distribution device can also be operated with a compressed medium, in particular with compressed air, which can be adjusted in a simple manner so that a uniform distribution of the blasting material also results at the upper points of the surface of the vibration device.
  • a first means for determining the amount of blasting material is provided within the blasting chamber.
  • This device can for example perform a sound analysis within the blasting chamber, with which the amount of blasting material is to be determined. In doing so, one makes use of the basic idea that the sound of the blasting material changes depending on its quantity.
  • a device for replenishing the blasting material can be provided so that its quantity remains constant within the blasting chamber.
  • a constant amount of blasting material ensures, in particular, that an easily reproducible and constant blasting result can be achieved.
  • the device for subsequent metering of the blasting material can be controlled as a function of the quantity of blasting material determined by the first device.
  • a monitoring can be realized in a simple way, so that always the same amount of blasting material, for example, is present within the blasting chamber.
  • Fig. 1 is a schematic and partial perspective view of a rotatable rotor on a gas turbine in the form of a blisk 10 schematically visible.
  • Fig. 2 which shows the blisk 10 in a schematic sectional view, the basic individual areas of which are more clearly recognizable.
  • a blisk disk 12 can be seen, on whose outer peripheral side a multiplicity of rotor blades 14 are arranged.
  • the blisk disk 12 is essentially an in Fig.
  • a sub-platform 18 connects:
  • the lower platform portion 18 is radially inward in a disk neck 20 on which the Sub-platform 18 connects with a disk body 22.
  • the radially inner end of the disk body 22 is formed by a hub 24, which is a counterweight to the rotor blades 14.
  • a - viewed in the radial direction - middle portion of the disk body 22 is another wing 28 on the other side of the blisk disk 12 from which comprises an angular portion 30 and a connecting them with the disk body 22 web 32 which at an angle protrudes from 45 ° relative to the disk body 22.
  • the blisk 10 is designed to be rotatable or rotationally symmetrical about a rotation axis R overall.
  • a holding device 34 by two symbolically indicated bearing blocks 36, via which the blisk 10 is rotatably supported or mounted about its axis of rotation R.
  • the apparatus for shot peening in the present case comprises a blasting chamber 38, which in particular in conjunction with Fig. 2 is more clearly recognizable.
  • the blasting chamber 38 serves for shot peening of the surface regions 40, 42 on the opposite sides of each of the rotor blades 14.
  • the blasting chamber 38 is in Fig. 1 indicated only by dashed lines and shown along a vertical S on the axis of rotation R of the blisk 10 and cut parallel to the cut surface by the blisk 10.
  • the blasting chamber 38 comprises two vibration devices 44, 46, which are indicated only schematically, which in the present case are designed as ultrasonic sonotrodes.
  • Each of the vibration devices 44, 46 comprises a surface 48, 50 facing the component to be radiated or the respective rotary blade 14, which are flat in the present exemplary embodiment.
  • the surfaces 48, 50 of the two vibration devices 44, 46 are arranged substantially V-shaped at an angle of presently approximately 110 ° to 120 ° to each other.
  • the two vibrators 46, 48 are within associated Chamber walls 52, 54 of the blasting chamber 38 recorded.
  • Fig. 2 can be seen that the two surfaces 48, 50 in the region of a common adjustment axis V in their angular position relative to each other or relative to the component to be radiated (rotor blades 14) are adjustable.
  • the adjustment axis V in this case runs perpendicular to the page plane.
  • each of the two surfaces 50 can be adjusted by a further adjustment axis Z, which in Fig. 2 are indicated only schematically.
  • the respective second adjusting axes Z each extend in the plane of the surfaces 48, 50 and perpendicular to the first adjustment axis V.
  • each of the two surfaces 48, 50 present at least about the adjustment axis V and possibly - if any - to the further adjustment axis Z be adjusted.
  • the angle of incidence of the blasting material can be adjusted to the particular region of the surface regions 40, 42 to be blasted, resulting in optimum or individual hardening.
  • the angular position of the surfaces 48, 50 can during the surface blasting of the respective rotor blade 14 are adjusted so that each rotor blade 18 can be surface-blasted in one operation. If the blisk 10 is rotated stepwise or continuously about its axis of rotation R within the holding device 34, an adjustment can likewise be made by the surfaces 48, 50.
  • the surfaces 48, 50 merely presettable, in which case the entire working process is carried out with the correspondingly adjusted surfaces 48, 50.
  • the component to be machined has a relatively simple geometry.
  • the chamber walls 52, 54, 56, 58 must be correspondingly formed so that the surfaces 48, 50 of the two vibration devices 44, 46 can be adjusted.
  • flexible chamber walls 52, 54, 56, 58 which can even easily surround the entire component.
  • a flexible enclosure would be created, which encloses the entire component and conforms to the side surfaces of the vibration devices 48, 50 and optionally not shown here component holders.
  • the surfaces 48, 50 opposite chamber walls 56, 58 may also be designed to be adjustable in order to allow a corresponding adjustment to the inclination adjustment of the vibration device 44, 46.
  • the reflection angle can be influenced, in which the blasting material rebounds from these.
  • the V-shaped arrangement of the two surfaces 48, 50 can be achieved in particular that the opposing surface regions 40, 42 of the respective rotor blade 14 can be blasted synchronously. As a result, it is achieved in particular with thin-walled components that there is no delay.
  • the angular positions of the surfaces 48, 50 moreover, a homogeneous beam intensity can be achieved over the entire beam range within narrow limits.
  • the surfaces 48, 50 are arranged at an identical angle to the vertical S, which has a central axis through the respective rotor blade 14 represents. Likewise, it would of course also be conceivable to adjust the two surfaces 48, 50 at different angles over the adjustment axes V and Z.
  • the two surfaces 48, 50 can theoretically be set at an angle of 0 ° to 90 ° - and in particular from 0 ° to 80 ° - to the vertical S or to the central axis of the respective rotor blade 14. Also well suited is an angle of between about 30 ° and about 60 °, and in particular between 40 ° and 50 ° of the two surfaces 48, 50 to the vertical S.
  • a distributor 62 is provided, with which the blasting material - in the present case the balls - evenly distributed over the two surfaces 48, 50.
  • the beam intensity is also homogenized.
  • the distribution device 62 comprises a hose 64, with which compressed air or compressed air can be passed to the lowest point within the blasting chamber 38, so that the collecting blasting material moves upward and is evenly distributed over the surfaces 48, 50.
  • a vibrating surface 66 may also be provided, which in Fig. 2 also indicated schematically.
  • the oscillating surface 66 can be operated, for example, by a sonotrode, a flapper, a piezoshacker or a vibrating plate or membrane. As a result, it is also achieved here that the blasting material is distributed uniformly over the surfaces 48, 50.
  • a first device 68 is provided within the blasting chamber 38, with which the amount of blasting material can be determined. This can be done for example by means of a sound analysis in which the sound is measured within the blasting chamber 38 on the basis of the amount of blasting material. When falling below a threshold value then further blasting material can be replenished by means of a second device 70, as indicated by the dashed tube 72. As a result, this ensures that there is always a constant amount of blasting material within the blasting chamber 38, so that a reproducible blasting result can be achieved.
  • the surface regions 40, 42 of the component 14 and the surfaces 48, 50 of the two vibration devices 44, 46 can thus be arranged relative to one another by means of the holding device 32 and be moved relative to one another by rotating the blisk 10 about their axis of rotation R during surface blasting.
  • the angular position of the surface 48, 50 of the at least one vibration device 44, 46 relative to the surface region 40, 42 of the component 14 can be adjusted only in advance and / or during the surface blasting of the surface region 40, 42 of the component 14 to the surface regions 40, 42 to consolidate more targeted and uniform.
EP07856056A 2006-12-13 2007-12-05 Vorrichtung und verfahren zum oberflächenstrahlen eines bauteils einer gasturbine Not-in-force EP2117777B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006058679A DE102006058679A1 (de) 2006-12-13 2006-12-13 Vorrichtung und Verfahren zum Oberflächenstrahlen eines Bauteils einer Gasturbine
PCT/DE2007/002195 WO2008071161A1 (de) 2006-12-13 2007-12-05 Vorrichtung und verfahren zum oberflächenstrahlen eines bauteils einer gasturbine

Publications (2)

Publication Number Publication Date
EP2117777A1 EP2117777A1 (de) 2009-11-18
EP2117777B1 true EP2117777B1 (de) 2011-02-23

Family

ID=39247146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07856056A Not-in-force EP2117777B1 (de) 2006-12-13 2007-12-05 Vorrichtung und verfahren zum oberflächenstrahlen eines bauteils einer gasturbine

Country Status (6)

Country Link
US (1) US8931318B2 (ru)
EP (1) EP2117777B1 (ru)
AT (1) ATE499183T1 (ru)
CA (1) CA2672149A1 (ru)
DE (2) DE102006058679A1 (ru)
WO (1) WO2008071161A1 (ru)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0902333D0 (en) 2009-02-13 2009-04-01 Rolls Royce Plc A surface treatment device
DE102009015160A1 (de) 2009-03-26 2010-09-30 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung eines beschicht- und/oder fügbaren Blechformteils mit einer Korrosionsschutzbeschichtung

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432220A (en) * 1981-09-10 1984-02-21 United Technologies Corporation Shot peening apparatus
FR2689431B1 (fr) * 1992-04-06 1995-10-20 Teknoson Procede et dispositif notamment de durcissement par ultrasons de pieces metalliques.
FR2801236B1 (fr) 1999-11-18 2001-12-21 Snecma Procede et machine de grenaillage par ultrasons de pieces sur une roue
FR2812285B1 (fr) * 2000-07-28 2003-02-07 Univ Troyes Technologie Procede de traitement de nanostructures et dispositif de traitement de nanostructures
FR2814099B1 (fr) 2000-09-21 2002-12-20 Snecma Moteurs Grenaillage transversal par ultrassons des aubes sur un rotor
GB2367028B (en) * 2000-09-22 2004-06-09 Rolls Royce Plc Gas turbine engine rotor blades
US7028378B2 (en) * 2000-10-12 2006-04-18 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Method of shot blasting and a machine for implementing such a method
FR2816636B1 (fr) * 2000-11-16 2003-07-18 Snecma Moteurs Grenaillage des sommets des aubes refroidies
EP1555329A1 (de) * 2004-01-15 2005-07-20 Siemens Aktiengesellschaft Bauteil mit Druckeigenspannungen, Verfahren zur Herstellung und Vorrichtung zur Erzeugung von Druckeigenspannungen
DE102004029546A1 (de) 2004-06-19 2006-01-05 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zum Oberflächenstrahlen von Gasturbinenschaufeln im Bereich ihrer Schaufelfüße
US20060021410A1 (en) * 2004-07-30 2006-02-02 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Shot, devices, and installations for ultrasonic peening, and parts treated thereby
DE102004037954A1 (de) * 2004-08-05 2006-03-16 Mtu Aero Engines Gmbh Vorrichtung zum Oberflächenstrahlen von Bauteilen
DE102004059592B4 (de) * 2004-12-10 2014-09-04 MTU Aero Engines AG Verfahren zum Oberflächenstrahlen von Hohlräumen, insbesondere von Hohlräumen an Gasturbinen
DE202005007320U1 (de) 2005-05-09 2005-07-07 Günther Böhler GmbH Vorrichtung zum abrasiven Strahlen von Werkstücken
WO2006124616A2 (en) * 2005-05-12 2006-11-23 General Electric Company Ultrasonic peening treatment of assembled components
WO2007055864A2 (en) * 2005-10-12 2007-05-18 Surface Technology Holdings, Ltd Improved integrally bladed rotating turbo machinery and method and apparatus for achieving the same
DE102006058678A1 (de) * 2006-12-13 2008-07-03 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zum Oberflächenstrahlen eines Teilelements eines Bauteils einer Gasturbine
DE102008010847A1 (de) * 2008-02-25 2009-08-27 Rolls-Royce Deutschland Ltd & Co Kg Verfahren und Vorrichtung zum Kugelstrahlverfestigen von Bliskschaufeln

Also Published As

Publication number Publication date
DE102006058679A1 (de) 2008-06-19
ATE499183T1 (de) 2011-03-15
US8931318B2 (en) 2015-01-13
EP2117777A1 (de) 2009-11-18
CA2672149A1 (en) 2008-06-19
US20100037669A1 (en) 2010-02-18
DE502007006567D1 (de) 2011-04-07
WO2008071161A1 (de) 2008-06-19

Similar Documents

Publication Publication Date Title
EP1986817B1 (de) Strahlkammer zum oberflächenstrahlen, insbesondere zum ultraschall kugelstrahlen von gasturbinen-bauteilen
EP2046532A1 (de) Deckelelement für eine sonotrode und strahlkammeranordnung zum oberflächenstrahlen von bauteilen
EP3429770A1 (de) Vorrichtung und verfahren zum entzundern eines bewegten werkstücks
DE102008010847A1 (de) Verfahren und Vorrichtung zum Kugelstrahlverfestigen von Bliskschaufeln
DE102010049460A1 (de) Trepanieroptik
EP2099585B1 (de) Vorrichtung und verfahren zum oberflächenstrahlen eines bauteils einer gasturbine
EP2117777B1 (de) Vorrichtung und verfahren zum oberflächenstrahlen eines bauteils einer gasturbine
DE19680789C1 (de) Verfahren und Vorrichtung zum Steigern der Festigkeit eines Metallbauteils
DE10225387A1 (de) Vorrichtung zur Substratbehandlung mittels Laserstrahlung
EP1954421B2 (de) Verfahren zum herstellen von metallischen bauteilen, insbesondere für turbomaschinen, mit kleinen kantenradien
DE3527923A1 (de) Verfahren und vorrichtung zum verfestigen der wandung einer bohrung durch kugelstrahlen
EP3415295B1 (de) Streuanlage
EP2711117B1 (de) Schneidvorrichtung mit einer Spritzschutzeinrichtung und Verfahren zum Schneiden von Werkstücken
DE4431551C2 (de) Brecher mit einem Gestell, in dem ein angetriebener, steinbrechender Rotor gelagert ist
DE102017111018B4 (de) Streuanlage
DE3811680A1 (de) Gleitschliff- und strahlvorrichtung
EP0490189B1 (de) Strahlanlage zum Strahlen der Oberfläche von Blechen, Profilen oder dergleichen
DE102006058674B4 (de) Vorrichtung und Verfahren zum Oberflächenstrahlen eines Rotors einer Gasturbine
EP2129490A1 (de) Verfahren und strahlmittel zum oberflächenstrahlen
DE102007006671B4 (de) Vorrichtung zum Erzeugen eines Festkörper-Impulsstrahles zum Bearbeiten von Material
EP0171779A2 (de) Vorrichtung zur Oberflächenbearbeitung von Kälteversprödbaren Werkstücken
DE102005032220A1 (de) Verfahren zur Herstellung von Formkörpern, insbesondere Platten, aus Holzfasern und Vorrichtung für die Durchführung dieses Verfahrens
DE10296843T5 (de) Verfahren und Vorrichtung zum Häckseln von Holz

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: 20090713

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 HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

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

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 HU IE IS IT LI LT LU LV MC MT NL 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: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502007006567

Country of ref document: DE

Date of ref document: 20110407

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007006567

Country of ref document: DE

Effective date: 20110407

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110223

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110223

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

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: 20110603

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: 20110524

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: 20110223

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: 20110223

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: 20110623

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: 20110223

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: 20110223

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: 20110523

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: 20110223

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: 20110223

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: 20110223

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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: 20110223

Ref country code: IE

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: 20110223

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: 20110223

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: 20110223

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: 20110223

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: 20110223

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

26N No opposition filed

Effective date: 20111124

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

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: 20110223

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007006567

Country of ref document: DE

Effective date: 20111124

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

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: 20110223

BERE Be: lapsed

Owner name: MTU AERO ENGINES G.M.B.H.

Effective date: 20111231

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 NON-PAYMENT OF DUE FEES

Effective date: 20111231

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: LI

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

Effective date: 20111231

Ref country code: BE

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

Effective date: 20111231

Ref country code: CH

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

Effective date: 20111231

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: 20110223

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: 20111205

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

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: 20110223

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: 20110223

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

Effective date: 20110223

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20131114 AND 20131120

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 499183

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121205

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: 20121205

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

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

Ref country code: DE

Payment date: 20191217

Year of fee payment: 13

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

Ref country code: FR

Payment date: 20191218

Year of fee payment: 13

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

Ref country code: GB

Payment date: 20191220

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007006567

Country of ref document: DE

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

Effective date: 20201205

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: 20201231

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

Ref country code: GB

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

Effective date: 20201205

Ref country code: DE

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

Effective date: 20210701