EP2603670A1 - Dispositif de blocage d'un pied d'une aube de rotor - Google Patents
Dispositif de blocage d'un pied d'une aube de rotorInfo
- Publication number
- EP2603670A1 EP2603670A1 EP11758248.6A EP11758248A EP2603670A1 EP 2603670 A1 EP2603670 A1 EP 2603670A1 EP 11758248 A EP11758248 A EP 11758248A EP 2603670 A1 EP2603670 A1 EP 2603670A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- groove
- blade
- ring sector
- locking
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/32—Locking, e.g. by final locking blades or keys
- F01D5/326—Locking of axial insertion type blades by other means
-
- 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
- F01D5/3084—Fixing blades to rotors; Blade roots ; Blade spacers the blades being made of ceramics
-
- 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
Definitions
- the invention relates to the field of turbomachine rotors and, more particularly, the maintenance of the rotor blades on a rotor disk.
- a front-blower and double-body turbojet engine typically comprises, from upstream to downstream, a blower, a low-pressure compressor stage, a high-pressure compressor stage, a combustion chamber, a high-pressure turbine stage, and a high-pressure turbine stage. low pressure turbine stage.
- upstream and downstream are defined with respect to the direction of air circulation in the turbojet engine.
- inside and outside are defined radially with respect to the axis of the motor.
- a cylinder extending along the axis of the engine has an inner face facing the axis of the motor and an outer surface opposite to its inner surface.
- a low-pressure turbine stage for example, comprises successive rotor disks 1 each having axial or oblique grooves 11 into which blades 2 are engaged by their feet 3, the blades 2 extending radially outwardly with respect to the X axis of the motor.
- the blades 2 are retained radially in the grooves by their feet 3 in the form of fir, which also allows to provide a space between the foot 3 and the bottom of the groove to allow a flow of air which is guided in the body blades to ventilate them.
- the blades 2 are retained axially upstream by a sealing ring 4 comprising sealing lamellae, the sealing ring 4 being known to those skilled in the art under the designation "labyrinth ring".
- a circumferential ring sector 5 is mounted between a groove 6 of the rotor disk 1 and a downstream hook 7 of the blade root 3 2.
- the sector ring 5 blocks the axial displacement of the blade 2 downstream, the blade 2 remaining integral with the rotor disc 1.
- the feet 3 of the blades 2 are made of metallic material.
- the current method of fixing a metal foot can not be transposed for the attachment of a foot composite material.
- a traditional composite material does not allow to simply form concave areas in the blade root.
- the manufacture of a blade root, having a fir-shaped, composite material is not preferred. Indeed, during the operation of the engine, differential expansions appear and the fir-shaped foot teeth are no longer supported in the groove of the rotor disc. The radial retention of the dawn is not satisfactory.
- the invention relates to a device for blocking a root of a rotor blade in a groove of a rotor disk of a turbomachine, comprising:
- At least one locking tooth extending from the ring sector radially relative to the axis of the ring sector so as to block the axial displacement of the root of the blade in the groove.
- this simple mounting device allows to block radially and axially a blade with a rotor disk according to the prior art.
- Such a monobloc device makes it possible to guarantee correct positioning of each tooth and each wedge intended to block the blade root.
- the device is quick to mount in the rotor since each device may have several teeth and several blocking wedges.
- the device comprises ventilation means, provided in said ring sector, arranged to allow evacuation of a flow of air flowing between the bottom of the groove and the blocking wedge.
- the blocking wedge makes it possible to create a ventilation space between the blade root and the bottom of the groove in which circulates a flow of air that is evacuated by said ventilation means.
- the ventilation means are aligned with the direction in which the blocking tooth extends.
- the ventilation airflow cools the blocking wedge, the blade root and the bottom of the groove which are aligned axially with the blocking tooth.
- the ventilation means are in the form of at least one ventilation orifice.
- An orifice is easy to machine in the ring sector and allows evacuation of the ventilation airflow.
- the ventilation means are in the form of at least one ventilation notch formed in the portion of the ring sector intended to be inserted into the groove of the rotor disc. A ventilation notch allows to lighten the mass of the device while allowing the evacuation of the air flow.
- the ring sector has a crenellated inner edge.
- the ring sector has an inner radial portion, intended to be mounted in the groove of the rotor disk, and an outer radial portion, from which the blocking tooth extends, which are offset. axially with respect to each other along the ring axis.
- this offset makes it possible to accurately position the locking device without creating significant overhang for the blocking wedge with respect to its attachment in the groove. A tilting of the locking device is then limited.
- the invention also relates to a rotor of a turbomachine comprising a rotor disk, at least one rotor blade and at least one locking device as presented above, the rotor disk having a groove in which is housed a foot of the rotor. blade and a groove in which is mounted the locking device, the blocking wedge of the locking device extending between the blade root and the bottom of the groove.
- the rotor disk extending axially from upstream to downstream, the groove is formed at the downstream end of the rotor disc so as to block an axial displacement downstream of the blade in the groove.
- the root of the rotor blade comprises a casing of composite material.
- the blade root of composite material preferably ceramic matrix, is simple to manufacture and allows to form a rotor having all the advantages of a rotor according to the prior art with metal vanes.
- the root of the rotor blade has a dovetail shape. Thanks to the locking device according to the invention, the blade can be blocked radially which prevents any defect positioning of the blade in its housing when the rotor is stopped.
- Figure 1 is a radial sectional view of a rotor disk of a turbomachine in which is mounted a rotor blade according to the prior art
- Figure 2 is a perspective view of a first embodiment of a locking device according to the invention
- FIG 3 is a perspective view of a rotor according to the invention comprising a locking device according to Figure 2, the locking device axially blocking a single rotor blade mounted in the rotor disc;
- Figure 4 is a radial sectional view of the rotor of Figure 3 along the axis A-A;
- Figure 5 is a perspective view of a second embodiment of a locking device according to the invention.
- Figure 6 is a perspective view of a third embodiment of a locking device according to the invention.
- the invention will now be presented for a rotor of a turbomachine forming a low pressure turbine stage.
- the rotor comprises a low-pressure turbine rotor disc 1, extending axially along an axis X as shown in FIG. 3, in which axial or oblique grooves 11 are formed in which blades 2 are engaged by their feet 3. , the blades 2 extending radially outwardly relative to the axis X of the engine.
- the rotor disc 1 comprises an annular groove 6 extending radially inwards formed downstream of the groove 1 1 of the rotor disk 1.
- the invention is here described for a downstream blocking but it goes without saying that it applies in a similar way for an axial locking upstream.
- the rotor further comprises a locking device 8 of a root 3 of a rotor blade 2 in a groove 11 of the rotor disc 1 which will now be presented with reference to FIGS. 2 to 6.
- the locking device 8 has as many blocking wedges 82 as teeth 83.
- each blade 2 of rotor disk 1 is locked by a shim 82 and a blocking tooth 83.
- the number of spacers 82 is equal to the number of blades 2 to be blocked.
- the rotor disk 1 has 98 grooves 1 1 to receive as many blades 2.
- locking devices 8 of which 10 have nine spacers 82 and one of which has eight spacers 82, each device 8 having as many spacers 82 as locking teeth 83.
- the number of spacers 82 per device 8 may vary according to the number of blades of the rotor disc 1 or the number of devices 8 used to block the blades 2 of a rotor disc 1.
- the locking device 8 generally comprises a circular ring sector 81, at least one blocking wedge 82 and at least one blocking tooth 83 for axially locking the foot 3 of a rotor blade 3 housed in a groove 1 1 of the rotor disc 1 while allowing ventilation of the groove 1 1.
- the circular ring sector 81 is intended to be mounted, transversely to the axis of the turbomachine, in a groove 6 of the rotor disc 1.
- a circular ring sector is defined relative to to an axis which is subsequently designated ring axis S which is oriented from the rear to the front in Figure 2 and which defines the axial direction. Subsequently, the terms “forward” and “backward” are defined with respect to the S-ring axis.
- the ring sector 81 extends radially with respect to the ring axis S in the radial axis direction R, shown in Fig. 2, which is directed from the inside to the outside.
- the circular ring sector 81 has a constant radius of curvature and is flattened in the axial direction S, its radial dimension being longer than its axial dimension.
- the ring sector 81 has an open angle of the order of 30 ° but it goes without saying that this angle can be different.
- the inner radial portion 84 of the ring sector 81 is axially offset relative to its outer radial portion 85 as shown in FIG. 2.
- the inner radial portion 84 is in front of the outer radial portion 85 so as to allow the housing of the inner radial end 84 in the groove 6 of the rotor disc 1 while allowing the outer radial portion 85 to bear radially in the groove 1 1 of the rotor disc 1 as shown in Figure 3. This characteristic will be detailed later in the example of implementation of the invention.
- the locking wedge 82 of the blocking device 8 is integral and orthogonal to the ring sector 81, the spacer 82 extending from the rear face of the ring sector 81, parallel to the axis of FIG. ring S.
- the blocking wedge 82 is arranged to radially support the blade root 3 2 in the groove 1 1 of the rotor disk 1.
- the blocking wedge 82 is secured to the upper part 85 of the ring sector 81 so as to raise the blade root 3 2 relative to the bottom of the groove 1 1 to allow air to flow into the groove 1 1 of the rotor disc 1.
- the blocking wedge 82 of the locking device 8 is flattened in the radial direction R, its axial dimension being longer than its radial dimension.
- the length of the blocking wedge 82 defined along the ring axis S is configured to support the blade root 3 2.
- the length of the blocking wedge 82 corresponds to about 80% of the length of the blade root 3 2 as shown in Figure 4. It goes without saying that the length of the blocking wedge 82 may vary.
- the length of the blocking wedge 82 is at least equal to half the length of the blade root 3 to distribute the forces on the blocking wedge 82.
- the locking tooth 83 of the locking device 8 is integral and orthogonal to the blocking wedge 82.
- the blocking tooth 83 extends from the upper part 85 of the ring sector 81 in the radial direction R outwardly, that is to say radially with respect to the axis of the ring sector S, so as to block the axial displacement of the blade root 3 in the groove 1 1 of the rotor disk 1.
- the length of the tooth 83, defined along the radial axis R, is configured, in this example, to extend to the outer diameter of the rotor disc 1 when the locking device 8 is in the mounted position as shown in FIG. 3 .
- the dimensions of the blocking tooth 83 are defined to resist the axial displacements of the blade root 3 during a rotation of the rotor.
- the blocking tooth 83 is arranged to be aligned axially with the groove 1 1 of the rotor disc 1.
- the rear face of the locking tooth 83 also called stop face, has a surface whose dimension is smaller than at the section of the groove 1 1 of the rotor disk 1 as shown in Figure 3.
- Such locking tooth 83 can fulfill its function of axial locking while having a reduced mass because of its reduced dimensions.
- the locking tooth 83 is foldable / retractable to allow a simple mounting of the locking device 8 in the groove 6, the tooth 83 being unfolded / output after assembly.
- the locking device 8 further comprises ventilation means provided in the annular sector 81, preferably in its outer part 85, between the connecting zone of the blocking wedge 82 and the inner part 84 of the annular sector 81 as shown. These ventilation means are in the form of openings passing through the ring sector 81 in the axial direction so as to allow the evacuation of a flow of air F flowing between the bottom of the groove. 1 1 and the blocking wedge 82 as shown in FIG. 4.
- the ventilation means are aligned radially with the blocking tooth 83 which allows axially locking the blade root 3 while allowing the ventilation of the groove January 1.
- the ventilation means are in the form of circular through holes 91 as shown in Figures 2 to 4 whose diameter is calibrated for ventilation.
- Circular orifices 91 have the advantage of being simple to machine.
- the ventilation means are in the form of through orifices of elliptical section 92, the small diameter of which preferably extends in the radial direction.
- Elliptical section orifices 92 made for example by an inclined bore, have the advantage of offering a high air flow without affecting the mechanical strength in the radial direction of the ring sector 81. Indeed, the distance between the inner edge of the annular sector 81 and an elliptical orifice is larger than the distance between the inner edge of the annular sector 81 and a circular orifice which offers a better mechanical strength.
- the ventilation means are in the form of notches 93 formed from the inner portion 84 of the ring sector 81 to its outer portion 85.
- the inner end of the ring sector 81 is crenellated so as to allow the grooves 1 1 to be ventilated.
- the notches 93 have the advantage of lightening the mass of the ring sector 81 while being easy to machine by drilling.
- the notches 93 provide a large ventilation air flow.
- the locking device 8 of Figure 2 is mounted in the rotor disc 1 by placing the blocking wedges 82 axially in the grooves 1 1 of the disc of rotor 1 and inserting the inner portion 84 of the locking device 8 in the downstream groove 6 of the rotor disc 1 so that the upper portion 85 of the ring sector 81 bears in radial abutment in the bottom of the groove 1 1 so as to provide a circulation space for an air flow F between the blocking wedge 82 and the bottom of the groove 1 1.
- the axial offset also makes it possible to prevent the blocking device from tilting 8 while limiting the cantilever of the blocking device 8.
- the blocking wedge 82 is parallel to the bottom of the groove 1 1 once mounted.
- the locking tooth 83 extends radially with respect to the axis of the motor and is aligned axially with the groove January 1.
- the ventilation means here circular orifices 91, extend halfway up the circulation space of the air flow F between the blocking wedge 82 and the bottom of the groove 1 1 which ensures a good air circulation.
- the blade root 3 is then inserted into the groove 1 1 by axial displacement from upstream to downstream so that the foot 2 bears against the outer surface of the blocking wedge 82 to be retained. radially and thus avoid a defect positioning of the blade 2 in the disk 1, in particular, when the engine is stopped. Furthermore, the blade root 3 bears against the upstream surface (stopping surface) of the locking tooth 83 to be axially locked.
- the locking device 8 it is not necessary to use a blade at the foot of fir or to form a hook in the blade root to axially block the blade 2.
- the root 3 of the rotor blade 2 has a simple dovetail shape whose envelope is made of a composite material. It is the locking device 8, and not the blade root 3 2, which performs the functions of axial blocking, radial blocking and ventilation of the groove 1 1 of the rotor disc 1.
- Such a foot 3 is simple to manufacture and has a reduced mass.
- the envelope of the blade root 3 is made of ceramic matrix composite material (CMC).
- CMC ceramic matrix composite material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1056528A FR2963806B1 (fr) | 2010-08-10 | 2010-08-10 | Dispositif de blocage d'un pied d'une aube de rotor |
| PCT/FR2011/051882 WO2012020195A1 (fr) | 2010-08-10 | 2011-08-08 | Dispositif de blocage d'un pied d'une aube de rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2603670A1 true EP2603670A1 (fr) | 2013-06-19 |
| EP2603670B1 EP2603670B1 (fr) | 2018-03-07 |
Family
ID=43867171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11758248.6A Active EP2603670B1 (fr) | 2010-08-10 | 2011-08-08 | Dispositif de blocage d'un pied d'une aube de rotor |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9429030B2 (fr) |
| EP (1) | EP2603670B1 (fr) |
| CN (1) | CN103080479B (fr) |
| BR (1) | BR112013002996B1 (fr) |
| CA (1) | CA2807556C (fr) |
| FR (1) | FR2963806B1 (fr) |
| RU (1) | RU2572654C2 (fr) |
| WO (1) | WO2012020195A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3009608B1 (fr) * | 2014-10-02 | 2019-10-30 | United Technologies Corporation | Ensemble d'aubes avec des aubes segmentées bloqués |
| RU2578874C1 (ru) * | 2014-11-27 | 2016-03-27 | Марат Закиевич Нафиков | Способ формирования металлопокрытия одновременной электроконтактной приваркой двух стальных проволок |
| US9664058B2 (en) | 2014-12-31 | 2017-05-30 | General Electric Company | Flowpath boundary and rotor assemblies in gas turbines |
| US9777586B2 (en) | 2014-12-31 | 2017-10-03 | General Electric Company | Flowpath boundary and rotor assemblies in gas turbines |
| FR3093533B1 (fr) * | 2019-03-06 | 2022-04-15 | Safran Aircraft Engines | dispositif d’amortissement pour rotor de turbomachine |
| CN114762968B (zh) * | 2021-01-14 | 2024-07-16 | 中国航发商用航空发动机有限责任公司 | 叶片挡环安装工具和叶片挡环安装方法 |
| CN114215610B (zh) * | 2021-12-01 | 2023-06-27 | 东方电气集团东方汽轮机有限公司 | 一种燃气轮机透平动叶轴向定位结构和安装拆解方法 |
| US12071864B2 (en) | 2022-01-21 | 2024-08-27 | Rtx Corporation | Turbine section with ceramic support rings and ceramic vane arc segments |
| CN115419470B (zh) * | 2022-08-18 | 2025-08-12 | 中国航发贵阳发动机设计研究所 | 一种转子叶片轴向限位结构 |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA604830A (en) * | 1960-09-06 | Metropolitan-Vickers Electrical Company Limited | Locking means for axial flow turbo-machine blading | |
| US1873956A (en) * | 1930-05-05 | 1932-08-30 | Allis Chalmers Mfg Co | Rotor structure |
| US3076634A (en) * | 1959-06-12 | 1963-02-05 | Ass Elect Ind | Locking means for compressor and turbine blades |
| US3343806A (en) * | 1965-05-27 | 1967-09-26 | Gen Electric | Rotor assembly for gas turbine engines |
| GB1291302A (en) * | 1970-03-14 | 1972-10-04 | Sec Dep For Defendence | Improvements in bladed rotor assemblies |
| US3945758A (en) * | 1974-02-28 | 1976-03-23 | Westinghouse Electric Corporation | Cooling system for a gas turbine |
| US4207029A (en) * | 1978-06-12 | 1980-06-10 | Avco Corporation | Turbine rotor assembly of ceramic blades to metallic disc |
| US4470757A (en) * | 1982-02-25 | 1984-09-11 | United Technologies Corporation | Sideplate retention for a turbine rotor |
| FR2524933B1 (fr) * | 1982-04-13 | 1987-02-20 | Snecma | Dispositif de verrouillage axial d'aubes de rotor de turbine ou de compresseur |
| US4507052A (en) * | 1983-03-31 | 1985-03-26 | General Motors Corporation | End seal for turbine blade bases |
| US4659285A (en) * | 1984-07-23 | 1987-04-21 | United Technologies Corporation | Turbine cover-seal assembly |
| FR2586061B1 (fr) * | 1985-08-08 | 1989-06-09 | Snecma | Disque porte labyrinthe multifonction pour rotor de turbomachine |
| US4781534A (en) * | 1987-02-27 | 1988-11-01 | Westinghouse Electric Corp. | Apparatus and method for reducing windage and leakage in steam turbine incorporating axial entry blade |
| US5222865A (en) * | 1991-03-04 | 1993-06-29 | General Electric Company | Platform assembly for attaching rotor blades to a rotor disk |
| FR2694046B1 (fr) * | 1992-07-22 | 1994-09-23 | Snecma | Dispositif d'étanchéité et de rétention pour un rotor entaillé de brochages recevant des pieds d'aubes. |
| ITMI991210A1 (it) * | 1999-05-31 | 2000-12-01 | Nuovo Pignone Spa | Dispositivo di fissaggio per palette per turbine a gas |
| KR100837134B1 (ko) | 2001-07-03 | 2008-06-11 | 에이비비 터보 시스템즈 아게 | 축류 터보 엔진의 로터 블레이드용 고정 장치 |
| FR2842828B1 (fr) * | 2002-07-25 | 2005-04-29 | Snecma Moteurs | Piece mecanique, et procede de fabrication d'une telle piece mecanique |
| FR2867223B1 (fr) * | 2004-03-03 | 2006-07-28 | Snecma Moteurs | Turbomachine comme par exemple un turboreacteur pour avion |
| US7329101B2 (en) * | 2004-12-29 | 2008-02-12 | General Electric Company | Ceramic composite with integrated compliance/wear layer |
| RU49905U1 (ru) * | 2005-06-01 | 2005-12-10 | Федеральное государственное унитарное предприятие "Московское машиностроительное производственное предприятие "САЛЮТ" (ФГУП "ММПП "САЛЮТ") | Устройство для фиксирования рабочей лопатки в пазу детали ротора |
| FR2888897B1 (fr) | 2005-07-21 | 2007-10-19 | Snecma | Dispositif d'amortissement des vibrations d'un anneau de retention axiale des aubes de soufflante d'une turbomachine |
| UA82235C2 (uk) * | 2005-12-12 | 2008-03-25 | Государственное Предприятие «Запорожское Машиностроительное Конструкторское Бюро «Прогресс» Имени Академика О.Г. Ивченко» | Пристрій кріплення лопаток робочого колеса осьової турбомашини |
| JP2007247406A (ja) * | 2006-03-13 | 2007-09-27 | Ihi Corp | ファンブレードの保持構造 |
| US7806662B2 (en) * | 2007-04-12 | 2010-10-05 | Pratt & Whitney Canada Corp. | Blade retention system for use in a gas turbine engine |
| FR2918103B1 (fr) * | 2007-06-27 | 2013-09-27 | Snecma | Dispositif de refroidissement des alveoles d'un disque de rotor de turbomachine. |
| FR2918414B1 (fr) * | 2007-07-06 | 2013-04-12 | Snecma | Dispositif d'alimentation en air de ventilation des aubes de turbine basse pression d'un moteur a turbine a gaz ; segment pour l'arret axial et la ventilation des aubes de turbine basse pression |
| FR2939834B1 (fr) * | 2008-12-17 | 2016-02-19 | Turbomeca | Roue de turbine avec systeme de retention axiale des aubes |
-
2010
- 2010-08-10 FR FR1056528A patent/FR2963806B1/fr active Active
-
2011
- 2011-08-08 EP EP11758248.6A patent/EP2603670B1/fr active Active
- 2011-08-08 WO PCT/FR2011/051882 patent/WO2012020195A1/fr not_active Ceased
- 2011-08-08 CN CN201180039352.2A patent/CN103080479B/zh active Active
- 2011-08-08 CA CA2807556A patent/CA2807556C/fr active Active
- 2011-08-08 US US13/816,083 patent/US9429030B2/en active Active
- 2011-08-08 BR BR112013002996-0A patent/BR112013002996B1/pt active IP Right Grant
- 2011-08-08 RU RU2013109409/02A patent/RU2572654C2/ru active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012020195A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103080479A (zh) | 2013-05-01 |
| CN103080479B (zh) | 2015-12-09 |
| BR112013002996B1 (pt) | 2020-12-08 |
| RU2013109409A (ru) | 2014-09-20 |
| FR2963806B1 (fr) | 2013-05-03 |
| US9429030B2 (en) | 2016-08-30 |
| US20130136605A1 (en) | 2013-05-30 |
| BR112013002996A2 (pt) | 2016-06-14 |
| FR2963806A1 (fr) | 2012-02-17 |
| CA2807556A1 (fr) | 2012-02-16 |
| CA2807556C (fr) | 2018-04-17 |
| WO2012020195A1 (fr) | 2012-02-16 |
| RU2572654C2 (ru) | 2016-01-20 |
| EP2603670B1 (fr) | 2018-03-07 |
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