WO2015045540A1 - 圧縮機及び過給機 - Google Patents
圧縮機及び過給機 Download PDFInfo
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- WO2015045540A1 WO2015045540A1 PCT/JP2014/067414 JP2014067414W WO2015045540A1 WO 2015045540 A1 WO2015045540 A1 WO 2015045540A1 JP 2014067414 W JP2014067414 W JP 2014067414W WO 2015045540 A1 WO2015045540 A1 WO 2015045540A1
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- WIPO (PCT)
- Prior art keywords
- impeller
- compressor
- wire rope
- supercharger
- air guide
- Prior art date
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Classifications
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- 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
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
- F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of rotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/005—Exhaust driven pumps being combined with an exhaust driven auxiliary apparatus, e.g. a ventilator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/16—Other safety measures for, or other control of, pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a compressor and a supercharger used for an internal combustion engine.
- a turbocharger having a compressor having an impeller for compressing air and an air guide cylinder for containing the impeller and guiding air is used. It has been.
- the turbocharger described in Patent Document 1 when a part of the impeller bursts and scatters outward, the head tank of the lubricating oil for lubricating the journal bearing is not damaged and oil leakage does not occur.
- an impact absorbing partition wall is provided between the diffuser of the compressor and the head tank.
- Patent Document 1 describes a configuration for preventing the lubricant head tank from being damaged inside the supercharger when a part of the impeller is scattered as described above.
- a configuration for maintaining the state where the impeller is stored in the compressor or the supercharger so as not to be scattered outside the compressor or the supercharger is not disclosed.
- An object of some embodiments of the present invention is to effectively prevent impeller debris from being scattered outside the compressor or supercharger when the impeller breaks, and store the impeller inside the compressor or supercharger. It is providing the compressor and supercharger which can maintain the state which carried out more reliably.
- a compressor includes: (1) an impeller for compressing air; An air guide tube for accommodating the impeller and guiding the air; At least one wire rope wound around the air guide tube; Have
- the impeller fragments When the impeller breaks in the compressor, the impeller fragments may scatter toward the radially outer side of the impeller and break through the air guide tube.
- the impeller fragments are attached to at least one wire rope wound around the air guide tube. collide. Since the wire rope is formed by winding a plurality of wires, the kinetic energy of the impeller pieces can be effectively absorbed by the deformation of the wire rope itself when the impeller pieces collide, and the impeller pieces can be received.
- the structure of the compressor as described in said (1) can be implement
- a scroll chamber frame that forms a scroll chamber for guiding the air that has passed through the air guide tube to the outside; At least a part of the at least one wire rope is provided between the air guide tube and the scroll chamber frame.
- the at least part of the at least one wire rope is located within a range where the impeller blades exist in the axial direction of the impeller.
- the compressor described in (3) above (4) In at least a part of a range of the impeller blades in the axial direction of the impeller, The height at which the at least one wire rope is stacked in the radial direction of the impeller becomes higher toward the upstream side in the air flow direction in the air guide tube.
- the impeller blade height increases as it goes upstream in the direction of air flow in the air guide tube. Therefore, based on the damage prediction of the air guide tube according to the impeller blade height, the height of the wire rope stacked in the radial direction of the impeller (from the surface of the air guide tube to the outer end of the wire rope in the radial direction of the impeller) By adjusting the distance or the number of windings of the wire rope in the radial direction of the impeller, it is possible to efficiently suppress impeller fragments from being scattered outside the compressor.
- (5) It further has at least one caulking member for caulking one end and the other end of the at least one wire rope.
- the wire rope can be installed around the air guide tube with a simple configuration. Therefore, even when the impeller is broken, the state in which the impeller is stored inside the compressor can be more reliably maintained with a simple configuration.
- a supercharger includes the compressor described in any one of (1) to (6) above.
- the impeller of the compressor breaks, the impeller fragments are effectively prevented from scattering outside the compressor, so the impeller is placed inside the supercharger.
- the stored state can be maintained more reliably (impeller storage performance can be improved).
- the impeller when the impeller breaks, the impeller fragments are effectively prevented from scattering outside the compressor and the supercharger, and the impeller is stored inside the compressor and the supercharger. It becomes possible to maintain the state which was made more reliably.
- FIG. 1 is a schematic diagram illustrating an overall configuration of an internal combustion engine system according to some embodiments. It is a schematic sectional drawing which shows a part of supercharger which concerns on some embodiment. It is a figure which shows the structure of the wire rope which concerns on some embodiment. It is a figure which shows the structure of the crimping member which concerns on some embodiment. It is a schematic sectional drawing which shows a part of supercharger which concerns on some embodiment.
- FIG. 1 is a schematic diagram showing an overall configuration of an internal combustion engine system 100 according to some embodiments.
- An internal combustion engine system 100 shown in FIG. 1 includes an internal combustion engine 2, a supercharger 4 that pressurizes intake air to the internal combustion engine 2, and a generator 8 that is driven by a turbine 6 that the supercharger 4 has.
- a supercharger 4 shown in FIG. 1 is connected to a centrifugal compressor (compressor) 10 that pressurizes intake air to the internal combustion engine 2, and the compressor 10 via a rotary shaft 12 and is driven by exhaust gas from the internal combustion engine 2. And a turbine 6.
- the supercharger 4 shown in FIG. 1 uses an exhaust turbine supercharger (so-called turbocharger) that drives the compressor 10 by the turbine 6 driven by the exhaust gas of the internal combustion engine 2 in this way.
- a mechanical supercharger that drives the compressor 10 by power extracted from the output shaft of the internal combustion engine 2 via a belt or the like may be used.
- the internal combustion engine 2 for example, a diesel engine or a gasoline engine can be selected as appropriate.
- FIG. 2 is a schematic sectional view showing a part of the supercharger 4 according to some embodiments.
- the compressor 10 shown in FIG. 2 includes an impeller 14 for compressing air, an air guide tube 16 for accommodating the impeller 14 and guiding air, a wire rope 18 wound around the air guide tube 16, including.
- the impeller 14 includes a hub 19 and a plurality of wings 20 provided around the hub.
- impeller fragments for example, part of the blades 20 of the impeller 14
- air guide There is a possibility of breaking through the tube 16.
- the wire rope 18 is wound around the air guide tube 16 of the compressor 10 constituting a part of the supercharger 4 shown in FIG. Even if it breaks through, the impeller fragment collides with the wire rope 18 wound around the air guide tube 16. Since the wire rope 18 is formed with a plurality of wires 22 (see FIG. 3), the impeller fragments effectively absorb the kinetic energy of the impeller fragments by the deformation of the wire rope 18 itself when the impeller fragments collide with each other. You can catch debris. Therefore, it is possible to effectively prevent the impeller fragments from being scattered outside the turbocharger 4 and the compressor 10 when the impeller 14 is broken, and more reliably the state where the impeller 14 is stored in the supercharger 4 and the compressor 10. It is possible to maintain (the storage performance of the impeller 14 can be improved).
- the material of the wire rope 18 suitably according to required intensity
- strength for example, stainless steel etc.
- the thickness of the wire rope 18 may be appropriately selected according to the required strength.
- a wire rope having a diameter of about 1 to 24 mm may be used.
- the material and thickness of the wire rope 18 are not limited to this.
- the compressor 10 constituting a part of the supercharger 4 further includes a scroll chamber frame 25 that forms a scroll chamber 24 for guiding the air that has passed through the air guide cylinder 16 to the outside.
- a scroll chamber frame 25 that forms a scroll chamber 24 for guiding the air that has passed through the air guide cylinder 16 to the outside.
- at least a part of the wire rope 18 is provided between the air guide tube 16 and the scroll chamber frame 25.
- At least a part of the wire rope 18 is located within the existence range W of the blade 20 of the impeller 14 in the axial direction of the impeller 14 (the axial direction of the rotating shaft 12). .
- the wire rope 18 is located at a position where the impeller fragment is highly likely to be scattered when the impeller 14 is broken, the impeller fragment can be effectively received by the wire rope 18.
- the wire rope 18 is stacked in the radial direction of the impeller 14 in at least a part of the range W of the blade 20 of the impeller 14 in the axial direction of the impeller 14.
- the height (the distance from the surface of the air guide tube 16 to the outer end of the wire rope 18 in the radial direction of the impeller 14) becomes higher toward the upstream side in the direction in which air flows in the air guide tube 16.
- the height of the blade 20 of the impeller 14 increases as it goes upstream in the direction in which air flows in the air guide tube 16. Therefore, in the existence range W of the impeller 14 blades 20 in the axial direction of the impeller 14, impeller fragments generated when the impeller 14 breaks toward the upstream side in the air flow direction P in the air guide tube 16. Likely to grow.
- the impeller 14 can be supercharged without using the wire rope 18 more than necessary. 4 and the state stored in the compressor 10 can be more reliably maintained.
- the supercharger 4 includes a caulking member 32 that caulks one end portion 28 and the other end portion 30 of the wire rope 18.
- the wire rope 18 can be installed around the air guide tube 16 with a simple configuration. Therefore, even when the impeller 14 is broken, the state in which the impeller 14 is stored in the supercharger 4 or the compressor 10 can be more reliably maintained with a simple configuration.
- the supercharger 4 has a plurality of wire ropes 34 to 37 wound around the air guide tube 16.
- FIG. 5 shows an enlarged view around the air guide tube 16 in the compressor 10 constituting a part of the supercharger 4.
- the materials and diameters of the plurality of wire ropes 34 to 37 can be the same as those of the wire rope 18 described with reference to FIG.
- the air guide cylinder 16 of the compressor 10 constituting a part of the supercharger 4 is provided. Impeller debris can be effectively prevented from scattering outside the supercharger 4 and the compressor 10 without increasing the thickness.
- a plurality of wire ropes 34 to 37 are provided in at least a part of the existence range W of the blades 20 of the impeller 14 in the axial direction of the impeller 14.
- the height at which the impellers 14 are stacked in the radial direction becomes higher toward the upstream side in the air flow direction P in the air guide tube 16.
- the height of the blade 20 of the impeller 14 increases as it goes upstream in the air flow direction P in the air guide tube 16. Therefore, in the presence range W of the impeller 14 blades 20 in the axial direction of the impeller 14, the impeller fragments generated when the impeller 14 breaks toward the upstream side in the air flow direction in the air guide cylinder 16. Is likely to be.
- the impeller 14 can be used without using the wire rope more than necessary.
- the state stored in the supercharger 4 and the compressor 10 can be more reliably maintained.
- the plurality of wire ropes 34 to 37 are caulked by caulking members (similar to the caulking members 32 shown in FIG. 4) that caulk one end and the other end of each.
- caulking members similar to the caulking members 32 shown in FIG. 4
- the wire ropes 34 to 37 can be installed around the air guide tube 16 with a simple configuration. Therefore, even when the impeller 14 is broken, the state where the impeller 14 is stored in the supercharger 4 can be more reliably maintained with a simple configuration.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Supercharger (AREA)
Abstract
Description
特許文献1に記載の過給機には、インペラの一部がバーストして外方に飛散した際に、ジャーナル軸受を潤滑するための潤滑油のヘッドタンクが破損してオイル漏れが発生しないように、コンプレッサのディフューザとヘッドタンクとの間に衝撃吸収隔壁が設けられている。
この点に関し、特許文献1には、上述のようにインペラの一部が飛散した際に、過給機の内部で潤滑油ヘッドタンクを破損させないための構成は記載されているものの、インペラ破片が圧縮機や過給機の外部に飛散しないように、インペラを圧縮機や過給機の内部に格納した状態を維持するための構成については開示されていない。
(1)空気を圧縮するためのインペラと、
前記インペラを収容し前記空気を案内するための空気案内筒と、
前記空気案内筒の周りに巻かれた少なくとも1本のワイヤロープと、
を有する。
この点に関し、上記(1)に記載の圧縮機においては、インペラ破片が飛散して空気案内筒を突き破ったとしても、インペラ破片は空気案内筒の周りに巻かれた少なくとも1本のワイヤロープに衝突する。ワイヤロープは、複数のワイヤを縒って形成されているため、インペラ破片の衝突時にワイヤロープ自体の変形によってインペラ破片の運動エネルギーを効果的に吸収して、インペラ破片を受け止めることができる。したがって、インペラの破断時にインペラ破片が圧縮機の外部へ飛散することを効果的に抑制し、インペラを圧縮機の内部に格納した状態をより確実に維持することができる(インペラの格納性を向上することができる)。
また、上記(1)に記載の圧縮機の構成は、既存の圧縮機に対してインペラを収容する空気案内筒の周りに少なくとも1本のワイヤロープを巻くことで実現しうる。すなわち、あらたに全ての構成を調達せずとも、既存の圧縮機に対して付加的に少なくとも1本のワイヤロープを設ければ製造できるという生産容易性の観点でのメリットもある。
(2)前記空気案内筒を通過した空気を外部へ案内するためのスクロール室を形成するスクロール室フレームを更に備え、
前記少なくとも1本のワイヤロープの少なくとも一部は、前記空気案内筒と前記スクロール室フレームとの間に設けられる。
(3)前記少なくとも1本のワイヤロープの前記少なくとも一部は、前記インペラの軸方向において前記インペラの翼の存在範囲内に位置する。
(4)前記インペラの軸方向における前記インペラの翼の存在範囲のうちの少なくとも一部の範囲において、
前記少なくとも1本のワイヤロープが前記インペラの半径方向に積み重なる高さは、前記空気案内筒内を前記空気が流れる方向において上流側に向かうにつれて高くなる。
(5)前記少なくとも1本のワイヤロープの一端部と他端部とをかしめる少なくとも1つのかしめ部材を更に有する。
(6)前記ワイヤロープは複数本設けられている。
これに対し、上記(6)に記載の圧縮機によれば、インペラ破片の衝突によって1本のワイヤロープが切断されたとしても、切断されたワイヤロープとは別のワイヤロープの張力は維持される。すなわち、1本のワイヤロープが切断されたとしても、他のワイヤロープによってインペラ破片の運動エネルギーを効果的に吸収することができる。したがって、インペラの破断時にインペラ破片が圧縮機の外部へ飛散することを効果的に抑制し、インペラを圧縮機の内部に格納した状態をより確実に維持することができる。
本発明の幾つかの実施形態に係る過給機では、圧縮機のインペラの破断時にインペラ破片が圧縮機の外部へ飛散することが効果的に抑制されるので、インペラを過給機の内部に格納した状態をより確実に維持することができる(インペラの格納性を向上することができる)。
図1に示す過給機4では、このように、内燃機関2の排気により駆動されるタービン6によってコンプレッサ10を駆動する排気タービン式の過給機(所謂ターボチャージャ)を用いている。他の実施形態に係る過給機4では、内燃機関2の出力軸からベルト等を介して取り出した動力によってコンプレッサ10を駆動する機械式の過給機(所謂スーパーチャージャ)を用いてもよい。また、内燃機関2としては、例えばディーゼルエンジンやガソリンエンジン等を適宜選択することができる。
このように、インペラ14が破断した際にインペラ破片が飛散する可能性が高い位置にワイヤロープ34~37が位置するため、ワイヤロープ34~37によってインペラ破片を効果的に受け止めることができる。
4 過給機
6 タービン
8 発電機
10 コンプレッサ
12 回転軸
14 インペラ
16 空気案内筒
18,34~37 ワイヤロープ
19 ハブ
20 翼
22 ワイヤ
24 スクロール室
25 スクロール室フレーム
28 一端部
30 他端部
32 かしめ部材
100 内燃機関システム
P 空気案内筒内を空気が流れる方向
W インペラの軸方向におけるインペラの翼の存在範囲
Claims (7)
- 空気を圧縮するためのインペラと、
前記インペラを収容し前記空気を案内するための空気案内筒と、
前記空気案内筒の周りに巻かれた少なくとも1本のワイヤロープと、
を有する圧縮機。 - 前記空気案内筒を通過した空気を外部へ案内するためのスクロール室を形成するスクロール室フレームを更に備え、
前記少なくとも1本のワイヤロープの少なくとも一部は、前記空気案内筒と前記スクロール室フレームとの間に設けられる請求項1に記載の圧縮機。 - 前記少なくとも1本のワイヤロープの前記少なくとも一部は、前記インペラの軸方向において前記インペラの翼の存在範囲内に位置する請求項2に記載の圧縮機。
- 前記インペラの軸方向における前記インペラの翼の存在範囲のうちの少なくとも一部の範囲において、
前記少なくとも1本のワイヤロープが前記インペラの半径方向に積み重なる高さは、前記空気案内筒内を前記空気が流れる方向において上流側に向かうにつれて高くなる請求項3に記載の圧縮機。 - 前記少なくとも1本のワイヤロープの一端部と他端部とをかしめる少なくとも1つのかしめ部材を更に有する請求項1~4のいずれか1項に記載の圧縮機。
- 前記ワイヤロープは複数本設けられている請求項1~5のいずれか1項に記載の圧縮機。
- 請求項1乃至6の何れか一項に記載の圧縮機を備える過給機。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP14848311.8A EP3009634B1 (en) | 2013-09-25 | 2014-06-30 | Compressor and turbocharger |
CN201480041370.8A CN105531461B (zh) | 2013-09-25 | 2014-06-30 | 压缩机及增压器 |
KR1020167002206A KR101820254B1 (ko) | 2013-09-25 | 2014-06-30 | 압축기 및 과급기 |
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JP2013198637A JP6012572B2 (ja) | 2013-09-25 | 2013-09-25 | 過給機 |
JP2013-198637 | 2013-09-25 |
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JP (1) | JP6012572B2 (ja) |
KR (1) | KR101820254B1 (ja) |
CN (1) | CN105531461B (ja) |
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CN113684708A (zh) * | 2021-08-27 | 2021-11-23 | 西安石油大学 | 一种钢丝绳头自动拆分机械手 |
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DE102018129128A1 (de) * | 2018-11-20 | 2020-05-20 | Man Energy Solutions Se | Einsatzstück für einen Turbolader |
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2014
- 2014-06-30 CN CN201480041370.8A patent/CN105531461B/zh active Active
- 2014-06-30 WO PCT/JP2014/067414 patent/WO2015045540A1/ja active Application Filing
- 2014-06-30 KR KR1020167002206A patent/KR101820254B1/ko active IP Right Grant
- 2014-06-30 EP EP14848311.8A patent/EP3009634B1/en active Active
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CN113684708A (zh) * | 2021-08-27 | 2021-11-23 | 西安石油大学 | 一种钢丝绳头自动拆分机械手 |
Also Published As
Publication number | Publication date |
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EP3009634B1 (en) | 2019-02-27 |
EP3009634A1 (en) | 2016-04-20 |
KR101820254B1 (ko) | 2018-01-18 |
KR20160023892A (ko) | 2016-03-03 |
JP2015063955A (ja) | 2015-04-09 |
JP6012572B2 (ja) | 2016-10-25 |
CN105531461B (zh) | 2018-09-11 |
CN105531461A (zh) | 2016-04-27 |
EP3009634A4 (en) | 2016-09-14 |
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