WO2015042095A1 - Eccentric coupling device and method for coupling mating casings in a turbomachine - Google Patents
Eccentric coupling device and method for coupling mating casings in a turbomachine Download PDFInfo
- Publication number
- WO2015042095A1 WO2015042095A1 PCT/US2014/055991 US2014055991W WO2015042095A1 WO 2015042095 A1 WO2015042095 A1 WO 2015042095A1 US 2014055991 W US2014055991 W US 2014055991W WO 2015042095 A1 WO2015042095 A1 WO 2015042095A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bore hole
- casing
- flange
- bushing
- pin
- Prior art date
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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/243—Flange connections; Bolting arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/16—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same abutted flanges
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
-
- 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
- Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
- Y10T29/49899—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"] by multiple cooperating aligning means
Definitions
- the present disclosure relates generally to turbomachines, such as gas turbine systems, and more particularly to methods and apparatus for coupling mating casings, such as turbine casings and exhaust casings, of turbomachines together.
- a conventional gas turbine system includes a compressor section, a combustor section, and at least one turbine section.
- the compressor section is configured to compress air as the air flows through the compressor section.
- the air is then flowed from the compressor section to the combustor section, where it is mixed with fuel and combusted, generating a hot gas flow.
- the hot gas flow is provided to the turbine section, which utilizes the hot gas flow by extracting energy from it to power the compressor, an electrical generator, and other various loads.
- Various casings are typically utilized to encase and protect the various components of a turbomachine such as a gas turbine system.
- a turbine casing may surround at least a portion of the turbine section of a gas turbine system
- an exhaust casing may surround at least a portion of the exhaust section of a gas turbine system.
- the present disclosure is directed to a coupling device for coupling a first casing and a second casing together.
- the first casing and second casing include mating bore holes defined in mating flanges thereof, which may be misaligned.
- the coupling device may include a bushing insertable and positionable within one of the mating bore holes, and a pin insertable and positionable within the bushing and the other of the mating bore holes.
- the bushing and pin may each include eccentric features which may facilitate insertion into the mating bore holes when the bore holes are misaligned, thus coupling the first casing and second casing together.
- the present disclosure is directed to a
- the turbomachine may include a first casing and an second casing, and may further include one or more coupling devices as disclosed herein for coupling the first casing and second casing together.
- the present disclosure is directed to a method for coupling a first casing and a second casing together.
- the method may include inserting a bushing into a bore hole defined in a flange of the first casing or the second casing, rotating the bushing to align with a mating bore hole defined in a flange of the other of the first casing or the second casing, inserting a pin into the bushing, rotating the pin to align with the mating bore hole defined in a flange of the other of the first casing or the second casing, and inserting the pin into the mating bore hole.
- the bushing and pin may each include eccentric features which may facilitate insertion into the mating bore holes when the bore holes are misaligned, thus coupling the first casing and second casing together.
- FIG. 1 is a schematic view of a gas turbine system according to one embodiment of the present disclosure
- FIG. 2 is a side view of a gas turbine system according to one embodiment of the present disclosure
- FIG. 3 is a cross-sectional view of a coupling device coupling a first casing flange and an second casing flange together according to one embodiment of the present disclosure
- FIG. 4 is a bottom view of a bearing of a coupling device according to one embodiment of the present disclosure.
- FIG. 5 is a side cross-sectional view of a bearing of a coupling device according to one embodiment of the present disclosure
- FIG. 6 is a bottom view of a pin of a coupling device according to one embodiment of the present disclosure.
- FIG. 7 is a side view of a pin of a coupling device according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION
- FIG. 1 is a schematic diagram of a turbomachine, which in the
- turbomachine of the present disclosure need not be a gas turbine system 10, but rather may be any suitable turbine system or other turbomachine, such as a steam turbine system or other suitable system.
- the system 10 as shown may include a compressor section 12, a combustor section 14 which may include a plurality of combustors 15 as discussed below, and a turbine section 16.
- the compressor section 12 and turbine section 16 may be coupled by a shaft 18.
- the shaft 18 may be a single shaft or a plurality of shaft segments coupled together to form shaft 18.
- the shaft 18 may further be coupled to a generator or other suitable energy storage device, or may be connected directly to, for example, an electrical grid.
- An inlet section 19 may provide an air flow to the compressor section 12, and exhaust gases may be exhausted from the turbine section 16 through an exhaust section 20 and exhausted and/or utilized in the system 10 or other suitable system. Exhaust gases from the system 10 may for example be exhausted into the atmosphere, flowed to a steam turbine or other suitable system, or recycled through a heat recovery steam generator.
- gas turbine 10 includes various casings.
- a turbine casing 32 is illustrated, which surrounds at least a portion of the turbine section 16.
- Turbine casing 32 is generally cylindrical, and may be formed from one or more sections.
- a turbine casing 32 may include an upper casing portion and a lower casing portion. The upper casing portion may typically be uncoupled from the lower casing portion for access to the turbine section 16, etc.
- the turbine casing 32 may be formed from one, three, four or more components.
- Turbine casing 32 may further include a flange 38 disposed at a generally downstream end (with respect to a general direction of flow through the gas turbine system 10).
- the flange 38 may be generally cylindrical, and may include a plurality of bore holes 40 defined therein and spaced annularly around the flange 38.
- Each bore hole 40 may extend generally along a longitudinal axis or centerline 42 that is generally parallel to a longitudinal axis 45 of the gas turbine system 10.
- an exhaust casing 52 is illustrated, which surrounds at least a portion of the exhaust section 20.
- Exhaust casing 52 is generally cylindrical, and may be formed from one or more sections.
- an exhaust casing 52 may include an upper casing portion and a lower casing portion. The upper casing portion may typically be uncoupled from the lower casing portion for access to the exhaust section 20, etc.
- the exhaust casing 52 may be formed from one, three, four or more components.
- Exhaust casing 52 may further include a flange 58 disposed at a generally upstream end (with respect to a general direction of flow through the gas turbine system 10).
- the flange 58 may be generally cylindrical, and may include a plurality of bore holes 60 defined therein and spaced annularly around the flange 58. Each bore hole 60 may extend generally along a longitudinal axis or centerline 62 that is generally parallel to a longitudinal axis 45 of the gas turbine system 10.
- FIG. 2 Other various casings are illustrated in FIG. 2.
- an inlet casing 80, compressor casing 82, and compressor discharge casing 84 are illustrated.
- such casings may be generally cylindrical and formed from one or more sections.
- each casing 80, 82, 84 may include upstream and/or downstream flanges, which may abut with flanges of other casings to couple to casings together.
- a downstream flange of inlet casing 80 may abut with an upstream flange of compressor casing 82
- a downstream flange of compressor casing 82 may abut with an upstream flange of compressor discharge casing 84
- a downstream flange of compressor discharge casing 84 may abut with an upstream flange of turbine casing 32.
- respective bore holes 40, 60 of the turbine casing 32 and the exhaust casing 52 may mate together to couple the turbine casing 32 and exhaust casing 52 together.
- the respective flanges 38, 58 may abutted together, with the desire that the bore holes 40, 60 are generally aligned.
- bore holes 40, 60 may be slightly offset, such that the bore holes 40 are not aligned.
- bore holes 40, 60 may be misaligned such that the respective longitudinal axes 42, 62 of the bore holes 40, 60 are not co-axial. In these events, it may still be desirable, however, to couple the turbine casing 32 and exhaust casing 52 together.
- the present disclosure is further directed to coupling devices 100 for coupling first casings 32 and second casings 52 of turbomachines together.
- the present disclosure illustrates and describes embodiments wherein the turbine casing and exhaust casing are the first and second casings 32, 52, any suitable turbomachine casings which include generally vertically extending flanges and axially extending bore holes are within the scope and spirit of the present disclosure.
- a coupling device 100 extends through the mating bore holes 40, 60 of the flanges 38, 58 of the first casing 32 and second casing 52 when the flanges 38, 58 are abutted together.
- a coupling device 100 may include eccentric features that facilitate extending the coupling device 100 through both mating bore holes 40, 60 to couple the first casing 32 and second casing 52 together, even when misaligned.
- the bore holes 40, 60 have different widths (or diameters) 70, 72 and cross-sectional areas.
- the width 70 of bore hole 40 is larger than the width 72 of bore hole 60.
- the width 72 of bore hole 60 may be larger than the width 70 of bore hole 40.
- Such relative widths may, in conjunction with the eccentric features as discussed herein, facilitate coupling the flanges 38, 58 together when misaligned.
- coupling device 100 may include a bushing 102 and a pin 104.
- the bushing 102 may generally fit within one of the mating bore holes 40, 60, such as the first casing bore hole 40 as illustrated.
- Bushing 102 may thus include an outer surface 110 which, when engaged in a bore hole 40, 60, is proximate or in contact with an inner surface 112 of the bore hole.
- Bushing 102 may further include a bore hole 114 extending therethrough along a longitudinal axis or centerline 116.
- the bore hole 114 may be eccentrically positioned within the bushing 102.
- the longitudinal axis 116 of the bore hole 114 may be purposefully misaligned, and thus not co-axial with, a longitudinal axis or centerline 118 of the bushing 102.
- the axes 116, 118 may be generally parallel but spaced apart and not-coaxial.
- the bushing 102 can be rotated, such as about the longitudinal axis 118, until the other mating bore hole 40, 60, is roughly aligned with bore hole 114.
- the generally entire periphery of the other mating bore hole 40, 60 is longitudinally contained in alignment within the bore hole 114, such that pin 104 can be extended through bushing 102 and into bore hole 114.
- Pin 104 may generally fit within bushing 102, such as the bore hole 114 thereof, as well the other mating bore hole 40, 60, such as the second casing bore hole 60 as illustrated.
- pin 104 may include a first portion 130 and a second portion 132.
- the first portion 130 may generally fit within the bushing 102, such as within the bore hole 114 thereof, while the second portion 130 may generally extend through the bushing 102 and generally fit within the other mating bore hole 40, 60.
- the first portion 130 may thus include an outer surface 134 which, when engaged in the bore hole 114 of the bushing 102, is proximate or in contact with an inner surface 136 of the bore hole 114.
- the second portion 132 may include an outer surface 138 which, when engaged in the other mating bore hole 40, 60, such as the second casing bore hole 60 as illustrated, is proximate or in contact with an inner surface 140 of the other mating bore hole 40, 60.
- the second portion 132 may have a width and cross-sectional area that is less than a width and cross- sectional area of the first portion 130. Further and advantageously, the second portion 132 may be eccentrically positioned relative to the first portion 130. For example, as shown, a longitudinal axis or centerline 142 of the first portion 130 may be purposefully misaligned, and thus not co-axial with, a longitudinal axis or centerline 144 of the second portion 132. As shown, the axes 142, 144 may be generally parallel but spaced apart and not-coaxial.
- the pin 104 when the pin 104 is initially being positioned within and/or relative to the bore hole 114 of the bushing 102, the pin 104 can be rotated, such as generally about the longitudinal axis 142, until the second portion 132 is aligned with the other mating bore hole 40, 60. Once aligned, the second portion 132 can be extended into the other mating bore hole 40, 60, with the first portion 130 thus positioned within the bore hole 114 of the bushing 102.
- Positioning and engagement of the pin 104 within the bushing 102 may thus couple the first casing 32 and second casing 52 together.
- the pin 104 and bushing 102 may be fixedly connected to the first casing 32 and/or second casing 52, such as to the flanges 38, 58 thereof, once engaged in the bore holes 40, 60.
- the bushing 102 may be welded, brazed, bonded, affixed with an adhesive, or otherwise fixidly connected to the one of the bore holes 40, 60 that the bushing 102 is disposed within.
- the pin 104 may be welded, brazed, bonded, affixed with an adhesive, or otherwise fixidly connected to the bushing 102.
- Such fixed connection may further facilitate coupling of the first casing 32 and second casing 52 by the coupling device 100.
- a method may include, for example, abutting mating flanges 38, 58 of the first casing 32 and second casing 52 together.
- the method may further include inserting an eccentric bushing 102 into a bore hole 40, 60 defined in one of the mating flanges 38, 58, and rotating the bushing 102 about a longitudinal axis 118 to align a bore hole 114 of the bushing 102 with a bore hole 40, 60 defined in the other of the mating flanges 38, 58.
- the method may further include inserting an eccentric pin 104 into the bushing 102, and rotating the pin 104 to align a portion thereof with the bore hole 40, 60 defined in the other of the mating flanges 38, 58.
- the method may further include inserting the portion of the pin 104 into the other bore hole 40, 60.
- the pin 104 may be inserted and rotated after rotation of the bushing 102, while in other embodiments, the pin 104 and bushing 102 may be rotated generally simultaneously.
- both the bushing 102 and pin 104 may be initially inserted. Both the bushing 102 and pin 104 may then be rotated into proper alignment. The portion of the pin 104 may then be inserted.
- a method according to the present disclosure may further include fixidly connecting the bushing 102 and the pin 104, such as to the flange 38 and/or 58.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020167009676A KR20160055260A (en) | 2013-09-17 | 2014-09-17 | Eccentric coupling device and method for coupling mating casings in a turbomachine |
CN201480051293.4A CN105765175A (en) | 2013-09-17 | 2014-09-17 | Eccentric coupling device and method for coupling mating casings in a turbomachine |
JP2016542882A JP2016531243A (en) | 2013-09-17 | 2014-09-17 | Eccentric coupling device and method for coupling mating casing in turbomachine |
EP14778004.3A EP3047120A1 (en) | 2013-09-17 | 2014-09-17 | Eccentric coupling device and method for coupling mating casings in a turbomachine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361878770P | 2013-09-17 | 2013-09-17 | |
US61/878,770 | 2013-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015042095A1 true WO2015042095A1 (en) | 2015-03-26 |
Family
ID=51656099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2014/055991 WO2015042095A1 (en) | 2013-09-17 | 2014-09-17 | Eccentric coupling device and method for coupling mating casings in a turbomachine |
Country Status (6)
Country | Link |
---|---|
US (1) | US20150078892A1 (en) |
EP (1) | EP3047120A1 (en) |
JP (1) | JP2016531243A (en) |
KR (1) | KR20160055260A (en) |
CN (1) | CN105765175A (en) |
WO (1) | WO2015042095A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022122109A1 (en) | 2022-09-01 | 2024-03-07 | Bayerische Motoren Werke Aktiengesellschaft | Housing for aligning a first component feature to a second component feature for a motor vehicle, component arrangement, motor vehicle |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015114401A1 (en) * | 2015-08-28 | 2017-03-02 | Wittenstein Se | Mounting system for a machine element |
FR3042724B1 (en) * | 2015-10-27 | 2018-03-16 | Safran Aircraft Engines | MEANS OF CONNECTION BETWEEN TWO MECHANICAL PARTS |
EP3284919B1 (en) * | 2016-08-16 | 2024-09-25 | General Electric Technology GmbH | Axial flow turbine having a diaphragm split in two halves at a joint plane |
KR20180078080A (en) * | 2016-12-29 | 2018-07-09 | 한국항공우주연구원 | Fixed body position correcting apparatus considering eccentricity of rotor |
EP3573789B1 (en) | 2017-01-25 | 2021-07-21 | Vestas Wind Systems A/S | An alignment tool for aligning bores in structural members |
JP6802351B2 (en) * | 2017-02-24 | 2020-12-16 | 三菱重工コンプレッサ株式会社 | Steam turbine and center guide pin |
FR3094745B1 (en) * | 2019-04-02 | 2021-03-12 | Safran Aircraft Engines | Method of centering annular flange holes |
Citations (5)
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---|---|---|---|---|
DE1120216B (en) * | 1958-11-24 | 1961-12-21 | Ford Werke Ag | Gas turbine |
US3062497A (en) * | 1958-11-24 | 1962-11-06 | Ford Motor Co | Gas turbine engine |
US5848874A (en) * | 1997-05-13 | 1998-12-15 | United Technologies Corporation | Gas turbine stator vane assembly |
EP1978265A1 (en) * | 2007-04-02 | 2008-10-08 | Ansaldo Energia S.P.A. | A maintenance method of a gas turbine unit and gas turbine unit |
WO2014010287A1 (en) * | 2012-07-11 | 2014-01-16 | 三菱重工業株式会社 | Axial flow exhaust turbine |
Family Cites Families (13)
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US1097185A (en) * | 1913-04-22 | 1914-05-19 | Henry C Oehrle | Coupling-bolt. |
US3072423A (en) * | 1961-11-06 | 1963-01-08 | Northrop Corp | Adjustable support pin |
US3493249A (en) * | 1968-01-18 | 1970-02-03 | Westinghouse Electric Corp | Eccentric bushings for housings |
DE2934470A1 (en) * | 1979-08-25 | 1981-03-26 | Robert Bosch Gmbh, 70469 Stuttgart | SECURING ARRANGEMENT AGAINST SHIFTING AT LEAST TWO RELATED PARTS |
CH664191A5 (en) * | 1984-01-09 | 1988-02-15 | Bbc Brown Boveri & Cie | EXTERNAL ADJUSTABLE AXIAL FIXING OF A BLADE CARRIER IN A TURBINE. |
DE3525955A1 (en) * | 1985-07-18 | 1987-01-22 | Le Thanh Son Dipl Ing | THREADED SCREWS FOR ACCESSIBLE SCREW POINTS ACCESSIBLE ON ONE SIDE |
US5104286A (en) * | 1991-02-08 | 1992-04-14 | Westinghouse Electric Corp. | Recirculation seal for a gas turbine exhaust diffuser |
US5438756A (en) * | 1993-12-17 | 1995-08-08 | General Electric Company | Method for assembling a turbine frame assembly |
US5513547A (en) * | 1995-01-06 | 1996-05-07 | Westinghouse Electric Corporation | Combustion turbine alignment method and apparatus |
DE10236097B4 (en) * | 2002-08-02 | 2005-02-10 | Becher, Reinhard | Dowels and set of dowels |
US8870533B2 (en) * | 2011-07-13 | 2014-10-28 | General Electric Company | Assembly for aligning an inner shell of a turbine casing |
JP6194553B2 (en) * | 2014-01-27 | 2017-09-13 | 三菱日立パワーシステムズ株式会社 | POSITION ADJUSTING DEVICE, ROTARY MACHINE HAVING THE SAME, AND POSITION ADJUSTING METHOD |
EP2960530A1 (en) * | 2014-06-27 | 2015-12-30 | Siemens Aktiengesellschaft | Assembly method for an electric machine comprising at least two machine segments |
-
2014
- 2014-09-17 US US14/488,661 patent/US20150078892A1/en not_active Abandoned
- 2014-09-17 JP JP2016542882A patent/JP2016531243A/en active Pending
- 2014-09-17 CN CN201480051293.4A patent/CN105765175A/en active Pending
- 2014-09-17 WO PCT/US2014/055991 patent/WO2015042095A1/en active Application Filing
- 2014-09-17 EP EP14778004.3A patent/EP3047120A1/en not_active Withdrawn
- 2014-09-17 KR KR1020167009676A patent/KR20160055260A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1120216B (en) * | 1958-11-24 | 1961-12-21 | Ford Werke Ag | Gas turbine |
US3062497A (en) * | 1958-11-24 | 1962-11-06 | Ford Motor Co | Gas turbine engine |
US5848874A (en) * | 1997-05-13 | 1998-12-15 | United Technologies Corporation | Gas turbine stator vane assembly |
EP1978265A1 (en) * | 2007-04-02 | 2008-10-08 | Ansaldo Energia S.P.A. | A maintenance method of a gas turbine unit and gas turbine unit |
WO2014010287A1 (en) * | 2012-07-11 | 2014-01-16 | 三菱重工業株式会社 | Axial flow exhaust turbine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022122109A1 (en) | 2022-09-01 | 2024-03-07 | Bayerische Motoren Werke Aktiengesellschaft | Housing for aligning a first component feature to a second component feature for a motor vehicle, component arrangement, motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
KR20160055260A (en) | 2016-05-17 |
EP3047120A1 (en) | 2016-07-27 |
US20150078892A1 (en) | 2015-03-19 |
JP2016531243A (en) | 2016-10-06 |
CN105765175A (en) | 2016-07-13 |
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