EP2409083A2 - Élément de protection thermique d'un bouclier thermique - Google Patents

Élément de protection thermique d'un bouclier thermique

Info

Publication number
EP2409083A2
EP2409083A2 EP09784070A EP09784070A EP2409083A2 EP 2409083 A2 EP2409083 A2 EP 2409083A2 EP 09784070 A EP09784070 A EP 09784070A EP 09784070 A EP09784070 A EP 09784070A EP 2409083 A2 EP2409083 A2 EP 2409083A2
Authority
EP
European Patent Office
Prior art keywords
heat shield
plate
shield element
support plate
elements
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.)
Granted
Application number
EP09784070A
Other languages
German (de)
English (en)
Other versions
EP2409083B1 (fr
Inventor
Claus Krusch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP09784070.6A priority Critical patent/EP2409083B1/fr
Publication of EP2409083A2 publication Critical patent/EP2409083A2/fr
Application granted granted Critical
Publication of EP2409083B1 publication Critical patent/EP2409083B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/002—Wall structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/04—Supports for linings
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49947—Assembling or joining by applying separate fastener
    • Y10T29/49963—Threaded fastener
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture

Definitions

  • the invention relates to a heat shield element of a heat shield, a heat shield to a support structure, a use of the heat shield for turbine engines and a method of assembling the heat shield element with the features mentioned in the preambles of each independent claims.
  • the heat shields of turbine engines such as gas turbines and turbine engines, such as those used in power-generating power plants and in larger aircraft, have correspondingly large shielded by heat shields surfaces inside their combustion chambers. Because of the thermal expansion and large dimensions, the shield must be composed of a plurality of individual ceramic heat shield elements spaced apart from one another with sufficient clearance. This gap provides the heat shield elements with sufficient space for thermal expansion. However, since the gap is also a direct contact of the hot
  • a cooling fluid in the form of cooling air is injected via cooling channels.
  • This cooling air is also used to selectively blow the metal brackets, with which the ceramic heat shield elements (CHS, Ceramic Heat Shields) are clamped to the support structure, and thus to cool.
  • cooling air is also injected below the ceramic heat shield elements to allow cooling of the underside.
  • brackets In order to carry out the brackets as simply and integrally as possible, a construction is known in which these brackets on the one hand in the support structure encircling parallel recessed grooves are inserted and clamped on the other hand with trained gripping portions with holder grooves, in which are formed in the side surfaces of the ceramic heat shield elements.
  • the heat shield elements are successively inserted with the holders in the grooves of the support structure, wherein the trailing elements obstruct the previously positioned in their positions.
  • a circular series of heat shield elements can be formed in a combustion chamber of a gas turbine.
  • the last remaining heat shield element can no longer be mounted in this way because the mutually present adjacent heat shield elements block a tangentially directed assembly movement. Often, such a last heat shield element is called a dummy stone or an assassin. Consequently, to attach the last
  • Heat shield element solutions with threaded connections applied which allow mounting in the direction of the surface normal of the support structure.
  • a known screw used for this purpose four screws which engage in recesses which are formed in the side surfaces of the heat shield element for this purpose.
  • This solution is often disadvantaged because on the one hand, the four screws require additional cooling and thereby more cooling air consumption and on the other hand, the assembly brings a handling problem with it.
  • the handling of the four screws necessitates the use of fixatives, such as adhesive tape or adhesive tape, which are not reliable, as a result of which the screws can be lost and, because of the high risk of damage, must necessarily be found.
  • EP 1 701 095 A1 and EP 0 558 540 B1 describe by way of example a heat shield as described above with the described advantages and disadvantages.
  • the heat shield elements are often referred to as stones and retaining elements holding them stone holder.
  • the object of the present invention in view of the above-described disadvantages in the prior art, is to make a heat shield member mountable as a last one of a plurality of heat shield members of a heat shield, thereby having few mounting members and the heat-protective function, as well as the cooling fluid circulation - lation preserved.
  • the invention relates to a heat shield element for a plurality of heat shield elements arranged adjacent to a support structure
  • Heat shield wherein the heat shield element has a hot side and a cold side.
  • the heat shield element has a heat shield plate forming the hot side and a carrier plate forming the cold side, wherein the heat shield plate can be mounted on the carrier plate.
  • the heat shield plate forming the hot side is made of a heat-resistant sintered or ceramic material and the support plate forming the cold side is formed of a metallic material or a metal alloy.
  • At least one through-hole in the heat shield plate is provided on the support plate, the position of this through-hole in the surface of the heat shield plate being essentially provided as a symmetrical position.
  • This one hole is sufficient to press through a screw.
  • the transverse dimension of the throughbore is preferably smaller than the diameter of the head of a fastening screw which can be inserted into the carrier plate.
  • a recess with a throughbore is provided on a corresponding hole for piercing the heat shield plate, into which the fastening screw can be pushed through, the head of the fastening screw in one through the recess and the carrier plate facing side of the heat shield plate trained space is locked. As a result, the fastening screw can not be lost.
  • the heat shield plate preferably has a respective receiving groove located in the two mutually opposite and opposite lateral edges, which are provided for engagement of the holding elements by gripping portions.
  • the carrier plate has at least one groove which has a common groove base and a narrowed region forming the open groove side. Further advantages can be achieved with an embodiment according to the invention, when the carrier plate and the heat shield plate are clamped together by means of at least two holder elements, wherein the holding element comprises means for engaging in the holder grooves of the heat shield plate and means for engaging in the grooves of the carrier plate.
  • the means formed in the holding element for engaging in the holder grooves of the heat shield plate are preferably designed as gripping sections.
  • the formed in the holding element means for engaging in the grooves of the support plate are further preferably formed as a widened shoe whose width corresponds to the width of the common groove bottom of the groove of the support plate.
  • the holding element may further comprise a fixing portion serving as a retaining spring, the width of which corresponds to the width of the narrowed portion of the groove of the carrier plate.
  • the thickness of the heat shield plate and the thickness of the carrier plate preferably give a total thickness of the two-part heat shield element according to the invention, which corresponds to the thickness of a one-piece ceramic heat shield element.
  • the objects of the invention are achieved with a heat shield on a support structure comprising a plurality of heat shield elements, with at least one heat shield element according to a previously described embodiment.
  • the heat shield element according to the invention is provided as a last, a series of pre-mounted adjacent heat shield elements final heat shield element.
  • the objects of the invention can also be achieved by using the heat shield with at least one heat shield element according to one of the above-described embodiment for producing a combustion plant or a turbine engine, wherein the turbine engine can be designed in particular as a gas turbine.
  • This method according to the invention is preferably characterized in that - the fixing screw is inserted into the hole provided in the recess, the heat shield plate by means of at least two holding elements, which are inserted with their respective shoe in the grooves of the carrier plate, with the metallic carrier plate by engagement be clamped by means of the gripping portions of the holding elements in the provided in the opposite edges of the heat shield plate holder grooves.
  • the method according to the invention provides further advantages if at least one holding element is fastened non-positively to the carrier plate at the attachment opening, the holding element opposite this at least one attached holding element being left unattached.
  • pocket CHS pocket stone
  • FIG. 1 shows a partial cross-sectional view through a preferred embodiment of the heat shield element according to the invention
  • FIG. 2 shows a side view of the heat shield element according to the invention
  • FIG. 3 shows a perspective view of the heat shield element according to the invention
  • FIG. 4 shows a perspective view of the supporting structure
  • FIG. 5 shows a perspective view of the holding element
  • Figure 6 is an enlarged partial perspective view of the heat shield element according to the invention in the region of a holding element.
  • FIG. 1 shows a partial cross-sectional view through a preferred embodiment of the heat shield element 1 according to the invention.
  • the heat shield element according to the invention is designed in two parts and has a preferably ceramic heat shield plate 10 and a preferably metallic support plate 5.
  • the total thickness of both plates is chosen to be the thickness of a normal all-ceramic one-piece heat shield element is the same to form a uniformly thick heat shield.
  • the support plate preferably has a fixing device which is substantially axially symmetrical in its center and which consists of an extension 3 projecting toward the cold side 4 and a depression 12 which is perforated by a bore. In this mounting hole, a fixing screw 2 can be introduced.
  • Both plates are clamped together by means of preferably resilient metal holders 7 (see FIGS. 5 and 6), wherein the holder 7 engages with its gripping portion 21 in a lateral receiving groove 8 of the heat shield plate 10.
  • the heat shield plate 10 has a through bore 11, which is arranged exactly above the fastening screw 2. Through this through hole 11, an assembly tool (not shown) can be inserted therethrough to engage in the head of the screw 2 and rotate it, when the heat shield element is attached to a support structure.
  • the diameter of the through hole 11 is selected such that the assembly tool, for example a screwdriver or an Allen wrench, just passes freely through. Thereby, the diameter of the through hole 11 can be kept as small as possible, whereby less heat can penetrate into the bore of the hot side 9 and cause a heat problem there.
  • FIG. 2 shows a side view of the heat shield element 1 according to the invention, which is rotated 90 degrees relative to the view in Figure 1.
  • the retaining element 7 is embedded in the support plate 5.
  • the groove 6 of the carrier plate 5 provided for receiving the retaining element 7 is formed in a pre-stretch 13 projecting towards the cold side.
  • This Vorsteckung 13 forms a guide rail 13, preferably one on each side of the support plate 5, which is inserted into the respective groove 15 of the support structure 16 and the support plate 5 with the heat shield plate 10 mounted on her precise positioning and alignment allows light.
  • the grooves 15 in the support structure 16 need not be introduced specifically for the heat shield element 1 according to the invention in the support structure, but are usually already provided for the assembly of the normal one-piece ceramic heat shield elements using the identical holding elements 7.
  • FIG. 3 shows an overall perspective view of the heat shield element 1 according to the invention, which has a ceramic heat shield plate 10 and a metal carrier plate 5.
  • the ceramic heat shield plate 10 and the metallic support plate 5 are preferably held together by four retaining elements 7.
  • the number of holders 7 can be reduced to at least two, one from each side.
  • the holders 7 engage in the holder grooves 8 provided in the two oppositely facing edges of the heat shield plate 10.
  • FIGS. 5 and 6 A detailed illustration of this attachment is given in more detail in FIGS. 5 and 6.
  • the adjacent but are in contrast to a between the Heat shield plate 10 and the support structure 16 positioned metallic support plate 5 mounted.
  • the through-hole 11 serves as described above for pushing through a narrow assembly tool in order to screw the fastening screw 2 into the support structure 16, where either a thread is present or a counter-nut is positioned.
  • FIG. 4 shows a perspective view of the support structure 16, for example of a turbine engine.
  • the support structure 16 has parallel grooves 15, in which the one-piece ceramic heat shield elements are clamped one behind the other by means of the resilient metallic holder 7.
  • the last piece of the heat shield is formed with the two-part heat shield element 1 according to the invention.
  • a bore 22 is provided in the support structure 16 exactly at the location of the last heat shield element into which the protruding extension 3 of the metallic support plate 5 of the heat shield element is fitted.
  • the two parallel arranged and correspondingly sized Vorstreckungen 13 are arranged in the parallel arranged, possibly widened grooves 15 of the support structure 16, so that the two-part heat shield element 1 according to the invention assumes a precisely predetermined position on the support structure 16.
  • the support structure 16 may further include, in preferred embodiments, cooling apertures 23 connected to cooling air passages.
  • the surface of the support structure 16 may be flat or curved. Furthermore, the curvature can be formed both convex and concave.
  • the preferred determination of the two-part heat shield element 1 according to the invention is provided as a final element of the heat shield in a consequent mounting direction which follows substantially the normal to the surface of the support structure. However, it may be provided in terms of easier access and reduced effort to replace a defective heat shield element to provide multiple termination points in a heat shield row. Then not all heat shield elements in a row need to be removed to replace only a few elements.
  • the two-part heat shield element 1 enables simple assembly by a person and only from one side of the installation if a thread device or a thread for the fastening screw 2 is provided in the support structure 16.
  • FIG. 5 shows a holding element 7 in a perspective view.
  • the retaining element 7 is preferably made of metal and comprises a fastening section 18, also called a retaining spring, with which the retaining element 7 can be fastened to a support structure 16 of a combustion chamber wall, for example the combustion chamber wall of a gas turbine plant.
  • the holding elements 7 are guided on the carrier plate 5 in each case in a groove 6 (see Fig. 6).
  • the so-called shoe of the holding element 7 closely tolerated in a parallel to the surface of the support plate 5 embedded (for example, about 10 mm deep) groove 6 a.
  • Such attachment of the one-piece ceramic-made normal heat shield elements to a support structure 16 is known.
  • this known fastening method is now applied to a support plate 5 serving as an intermediate element.
  • the groove 6 is designed so that it has the required width for inserting the shoes width only in the groove base. When pulling up the holding element 7 in the groove 6, this is supported on the narrow region of the groove 7, whereby a holding force holding the holding element 7 is mediated.
  • the non-widened part of the attachment portion 18 can thereby be lifted freely in the groove 6.
  • the fastening opening 17 in the shoe is used to fix all or some holding elements 7 in the groove, which can be done from the cold side of the carrier plate 5 by means of pins, locking grommets or screw connection.
  • a heat shield element is held on two opposite sides of two holding elements 7, that is, a total of four holding elements 7.
  • the attachment portions 3 of the holding elements 7 arranged on the other side are not secured in a preferred embodiment, so that they can slide in order not to hinder the thermal expansion of the heat shield element.
  • a holder head 20 is formed at that end of the retaining spring 18, which is opposite to the end with the attachment opening 17, a holder head 20 is formed.
  • This holder head 20 has a section 19, which is angled substantially at right angles to the retaining spring 18, and a gripping section 21, which in turn is angled substantially perpendicular to the section 19.
  • the gripping portion 21, also called the gripping tab, is used to engage in the groove of a heat shield element.
  • a heat shield element can be clamped by engagement of gripping tabs 21 of holding elements 7, which are fixed to a support plate 5, in the holder grooves 8 opposite sides of the heat shield plate 10 with the support plate (see Fig. 6).
  • FIG. 6 shows an enlarged perspective partial view of the heat shield element 1 according to the invention in the region of a holding element 7.
  • the above-described ceramic heat shield plate 10 with the hot side 9 is in this case arranged on the arranged below it metallic support plate 5 and clamped with the retaining element 7 described in Figure 5.
  • the groove 6 of the support plate 5 in this case has a wider groove bottom and a narrow portion 14 through which the retaining spring 18 of the retaining element 7 can escape while the shoe is retained with the mounting hole 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Connection Of Plates (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

L'invention concerne un élément de protection thermique (1), destiné à un bouclier thermique comprenant une pluralité d'éléments de protection thermique juxtaposés sur une structure porteuse (16), l'élément de protection thermique (1) possédant une face chaude (9) et une face froide (4), dont il est prévu que ce sera le dernier élément de protection thermique monté sur la structure porteuse (16). Il est prévu que l'élément de protection thermique (1) possède une plaque de protection thermique (10) formant la face chaude et une plaque porteuse (5) formant la face froide, la plaque de protection thermique (10) pouvant être montée sur la plaque porteuse (5). Pour le montage de la plaque de protection thermique (10) sur la plaque porteuse (5), il est prévu au moins un perçage traversant (11) dans la plaque de protection thermique (10). Il est par ailleurs prévu sur la plaque porteuse (5), dans une position qui correspond au perçage traversant (11) de la plaque de protection thermique (10), un logement (12) avec un perçage traversant dans lequel peut être insérée la vis de fixation (2). La tête de la vis de fixation (2) est retenue dans un espace formé par le logement (12) et la face de la plaque de protection thermique (10) tournée vers la plaque porteuse (5).
EP09784070.6A 2009-03-17 2009-12-02 Élément de protection thermique d'un bouclier thermique Not-in-force EP2409083B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09784070.6A EP2409083B1 (fr) 2009-03-17 2009-12-02 Élément de protection thermique d'un bouclier thermique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09155390A EP2236928A1 (fr) 2009-03-17 2009-03-17 Elément de bouclier thermique
EP09784070.6A EP2409083B1 (fr) 2009-03-17 2009-12-02 Élément de protection thermique d'un bouclier thermique
PCT/EP2009/066243 WO2010105709A2 (fr) 2009-03-17 2009-12-02 Élément de protection thermique d'un bouclier thermique

Publications (2)

Publication Number Publication Date
EP2409083A2 true EP2409083A2 (fr) 2012-01-25
EP2409083B1 EP2409083B1 (fr) 2015-07-29

Family

ID=40886950

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09155390A Withdrawn EP2236928A1 (fr) 2009-03-17 2009-03-17 Elément de bouclier thermique
EP09784070.6A Not-in-force EP2409083B1 (fr) 2009-03-17 2009-12-02 Élément de protection thermique d'un bouclier thermique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09155390A Withdrawn EP2236928A1 (fr) 2009-03-17 2009-03-17 Elément de bouclier thermique

Country Status (5)

Country Link
US (1) US20110318531A1 (fr)
EP (2) EP2236928A1 (fr)
CN (2) CN103759293A (fr)
RU (1) RU2515692C2 (fr)
WO (1) WO2010105709A2 (fr)

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DE102010015263B4 (de) * 2010-04-15 2013-06-27 Leybold Optics Gmbh Hitzeschild in einer thermischen Bearbeitungskammer und Verfahren zu seiner Herstellung
US20130305517A1 (en) * 2012-05-16 2013-11-21 Laith Anthony Vincent Captured threaded connector system and method for mechanically coupling components
EP2711630A1 (fr) * 2012-09-21 2014-03-26 Siemens Aktiengesellschaft Dispositif de refroidissement d'une structure porteuse d'un bouclier thermique et bouclier thermique
ITMI20122104A1 (it) * 2012-12-10 2014-06-11 Ansaldo Energia Spa Struttura di supporto per piastrelle termoisolanti di camere di combustione di turbine a gas, modulo termoisolante e camera di combustione di turbina a gas
EP2762782A1 (fr) * 2013-02-05 2014-08-06 Siemens Aktiengesellschaft Élément de retenue pour maintenir une brique de protection thermique sur une structure porteuse
ITMI20131115A1 (it) * 2013-07-03 2015-01-04 Ansaldo Energia Spa Piastrella per il rivestimento di camere di combustione, in particolare di impianti per la produzione di energia elettrica a turbina a gas, e camera di combustione comprendente detta piastrella
EP3033509B1 (fr) * 2013-08-15 2019-05-15 United Technologies Corporation Turbine à gas comprenant un panneau de protection et support à cet effet
EP3043113B1 (fr) * 2015-01-12 2018-05-23 A.S.EN. Ansaldo Sviluppo Energia S.r.l. Dispositif de fixation pour carreau thermo-isolant de chambre de combustion de turbine à gaz
CN104654359B (zh) * 2015-02-13 2017-12-19 北京华清燃气轮机与煤气化联合循环工程技术有限公司 一种燃烧室预混合燃料喷嘴的引流结构
CN108474284B (zh) 2015-12-28 2020-11-27 莱多公司 具有保持特征的热屏蔽件
DE102016114177B4 (de) * 2016-04-15 2023-11-23 Jünger+Gräter GmbH Feuerfestschutzsegment
EP3211307B1 (fr) 2016-02-26 2019-06-05 Jünger + Gräter GmbH Feuerfestbau Élément protecteur réfractaire
DE102016103443B4 (de) * 2016-02-26 2022-04-28 Jünger+Gräter GmbH Feuerfestschutzsegment
EP3309456A1 (fr) 2016-10-13 2018-04-18 Siemens Aktiengesellschaft Écran thermique avec carreau et support
WO2019217839A1 (fr) 2018-05-10 2019-11-14 Blue Origin, Llc Système de protection thermique à haute température pour fusées, et procédés associés
US11667408B2 (en) 2018-06-12 2023-06-06 Blue Origin, Llc Metal encapsulated ceramic tile thermal insulation, and associated systems and methods
DE102018213925A1 (de) 2018-08-17 2020-02-20 Rolls-Royce Deutschland Ltd & Co Kg Brennkammerbaugruppe mit Schindelbauteil und Positonierungshilfe
DE102019200593A1 (de) * 2019-01-17 2020-07-23 Siemens Aktiengesellschaft Brennkammer
CN113074386B (zh) * 2021-03-17 2022-08-16 中国航发动力股份有限公司 一种隔热屏安装用辅助装置及隔热屏安装方法

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Also Published As

Publication number Publication date
US20110318531A1 (en) 2011-12-29
CN103759293A (zh) 2014-04-30
WO2010105709A3 (fr) 2011-04-14
RU2011141839A (ru) 2013-04-27
CN102356277A (zh) 2012-02-15
EP2409083B1 (fr) 2015-07-29
WO2010105709A2 (fr) 2010-09-23
CN102356277B (zh) 2014-10-22
EP2236928A1 (fr) 2010-10-06
RU2515692C2 (ru) 2014-05-20

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