WO2007148810A1 - 燃料電池 - Google Patents
燃料電池 Download PDFInfo
- Publication number
- WO2007148810A1 WO2007148810A1 PCT/JP2007/062647 JP2007062647W WO2007148810A1 WO 2007148810 A1 WO2007148810 A1 WO 2007148810A1 JP 2007062647 W JP2007062647 W JP 2007062647W WO 2007148810 A1 WO2007148810 A1 WO 2007148810A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- fuel cell
- load
- cell stack
- display
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a fuel cell having a cell stack in which power generation cells are stacked.
- Such a fuel cell is usually arranged in a cell stack in which a required number of cells that generate electricity by an electrochemical reaction between a fuel gas and an oxidizing gas are stacked, and disposed outside the stacking direction of the cell stack.
- the fuel cell stack includes an end plate that applies a compressive load adjusted by a load adjusting screw to the cell stack.
- a spring module in which a plurality of springs are arranged between the plates is disposed between the cell stack and the end plate in order to equalize the compressive load on the cell stack and reduce the fluctuation of the compressive load.
- This spring module is provided with a scale on the side wall raised from the peripheral edge of one plate, and by reading the end position of the side wall raised from the peripheral edge of the other plate by this scale, The compressive load applied to the cell stack can be ascertained. Disclosure of the invention
- one side with a scale is provided. Since the compression load is read on the side, depending on the arrangement state of the fuel cell or the storage state in the case, one side provided with the scale is hidden, and it is difficult to read the compression load.
- a fuel cell according to the present invention includes a cell stack in which a plurality of cells are stacked, an end plate disposed outside the stack of the cell stack, and the cell stack.
- a fuel cell provided between the end plate and a pressing device for adjusting a compressive load applied to the cell stack, wherein the pressing device includes a pair of plates and a space between the plates.
- An elastic member that is arranged and elastically separates the plate bodies from each other, and includes a load display unit that has a display member that is fixed to one plate body and protrudes to the outer surface side of the other plate body.
- the compression load acting on the cell stack can be smoothed by observing the amount of protrusion of the display member on the outer surface side of the other plate. Can grasp.
- a housing space for the elastic member may be closed by side walls that are formed on a peripheral edge of the plate and overlap each other.
- the load display unit may be provided at a plurality of locations in the plane of the pressing device.
- the fuel cell of the present invention includes a cell stack formed by stacking a plurality of cells, an end plate disposed outside the stack of the cell stack, and the cell stack and the end braid.
- a fuel cell provided with a pressing device that adjusts a compressive load applied to the cell stack, wherein the pressing device is arranged between a pair of plates and elastically arranged between the plates.
- An elastic member that separates the bodies from each other and a plurality of load display portions that indicate the interval between the plate bodies are provided, and each load display portion is visible from a predetermined direction.
- each load display unit can be adjusted while visually observing from a predetermined direction, and assembling workability of the pressing device can be improved.
- the compressive load applied to the cell stack can be read smoothly.
- FIG. 1 is a cross-sectional view of a part of the fuel cell according to the present embodiment.
- FIG. 2 is a perspective view illustrating the structure of a spring module provided in the fuel cell.
- FIG. 3 is a cross-sectional view illustrating the structure of the load display portion provided in the spring module.
- FIG. 4 is a sectional view showing a modification of the spring module.
- FIG. 5 is a side view of the spring module showing another structure for fixing the display shaft to the lower plate.
- FIG. 6 is a side view showing a modification of the display shaft.
- FIG. 7 is a cross-sectional view showing a modification of the display shaft.
- FIG. 1 shows a fuel cell 10.
- This fuel cell 10 is used as an in-vehicle power generation system for fuel cell vehicles, power generation systems for all moving objects such as ships, airplanes, trains and walking robots, and power generation equipment for buildings (housing, buildings, etc.) It can be applied to stationary power generation systems, etc., but specifically for automobiles.
- the fuel cell 10 has a fuel cell stack 11 and a stack case (not shown) made of an insulating material such as a synthetic resin that covers the outside of the fuel cell stack 11.
- the fuel cell stack 1 1 has a pair of rectangular end plates 1 2 (not shown in the figure) connected to each other by tension plates 1 3, and the outer portions are configured.
- the plate 12 and the tension plate 13 are made of, for example, duralumin.
- the fuel cell stack 11 includes a cell stack 22 formed by stacking a required number of cells 21 having a rectangular shape in a plan view between the end plates 1 2 to generate electric power by receiving supply of fuel gas and oxidizing gas. Is provided. Between one end plate 1 2 and the cell stack 2 2, a spring module (pressing device) 2 3, an insulating plate 2 4, a terminal plate 2 5, and a cover plate are arranged in this order from the end plate 1 2 side. 2 6 are arranged.
- the cover plate 26 can be omitted.
- an insulating plate 24, a terminal plate 25, and a cover plate 26 are disposed between the other end plate 12 and the cell stack 22 in order from the end plate 12 side. Has been.
- the end plate body 30 is formed with a plurality of through holes 32 that penetrate in the thickness direction.
- the stopper 31 reinforces the end braid 12 including the end plate main body 30 by contacting the end of the end plate main body 30 with the spring module 23 side.
- the stopper 31 has a cylindrical boss 35 having a female thread 34 formed on the inside thereof, and extends radially outward from the axial center of the boss 35 to the entire circumference. It has a boss part 35 and a substantially disk-shaped flange part 36 having a constant thickness coaxial.
- the stopper 31 is inserted into the through hole 3 2 of the end plate body 30 at one cylindrical portion 3 7 of the boss portion 35 that protrudes from the flange portion 36 to one side in the axial direction.
- the entire surface of 6 is in contact with the end plate body 30.
- the axial length of one cylindrical portion 37 of the stopper 31 is equal to the axial length of the through hole 32 of the end plate body 30.
- the end surface of the cylindrical portion 37 is the end plate body 30. It is flush with the outer edge of the.
- the end plate 1 2 has a load adjustment screw 41 that is screwed into the female screw 3 4 of the stopper 31, and the load adjustment screw 4 1 is the end plate 1 2 of the spring module 2 3. It contacts the spherical projection formed on the side.
- the load adjusting screw 41 is formed with a recess 43 on the projection 28 side, and the recess 43 is engaged with the projection 28.
- the load adjustment screw 4 1 has a tool fitting portion 4 2 for fitting a tool such as a hexagon bolt on the opposite side of the projection 2 8.
- the load adjustment screw 4 1 is connected to this tool fitting.
- the spring module 2 3 has an end plate 1 2 side upper plate (plate body) 5 1 and a cell stack 2 2 side lower plate (plate body) 5 2.
- a plurality of coil springs (elastic members) 53 are disposed between the upper plate 51 and the lower plate 52.
- the upper plate 51 and the lower plate 52 are made of, for example, a metal material having a small specific gravity such as aluminum, and the upper plate 51 has a protrusion 28 on which the load adjusting screw 41 is brought into contact. Has been.
- the spring module 23 is provided with a load display portion 61 at a position near each corner.
- These load display portions 61 have a column-shaped display shaft (display member) 6 2 erected on the lower plate 52, and this display shaft 62 is formed on the upper plate 51. It is inserted into the insertion hole 63 and protrudes to the outer surface side of the end plate 12 of the upper plate 51.
- the display shaft 6 2 has a threaded portion 6 4 formed at one end thereof, and the threaded portion 6 4 is screwed into the screw hole 6 5 formed in the lower plate 52. Is attached to the lower plate 52.
- the display shaft 6 2 has a tool fitting portion 69 formed of a hexagonal hole for fitting a tool such as a hexagon bolt at the other end.
- the display shaft 6 2 is provided with this tool fitting. By being rotated through a tool fitted to the part 69, the screwing amount of the mouth bullet 52 into the screw hole 65 can be adjusted.
- the tool fitting portion 69 is not limited to a hexagonal hole, and may be rotatable by a hexagonal wrench as a hexagonal head in a plan view, or a plurality of convex portions may be radially formed around the so-called torque wrench. May be pivotable. Furthermore, a cross hole or a straight groove may be simply formed on the end face so that it can be rotated by a driver.
- a lock nut 6 6 is screwed into the threaded portion 6 4 of the display shaft 6 2, and the display shaft 6 2 is screwed into the lower plate 5 2 in the mouth.
- the display shaft 6 2 is fixed to the lower plate 52 by rotating the lock nut 66 and pressing it against the lower plate 52.
- the display shaft 6 2 constituting the load display portion 61 has a scale portion 6 7 on the other end side opposite to the screw portion 6 4.
- the scale portion 67 is composed of a plurality of scale lines 68 formed by, for example, engraving at predetermined intervals in the axial direction. These scale lines 68 are along the circumferential direction of the display shaft 62. Formed over the entire circumference.
- the spring module is read by reading the protruding amount of the display shaft 6 2 protruding from the insertion hole 6 3 of the upper plate 51 by the scale line 6 8 of the scale section 6 7. It is possible to grasp the compressive load applied to the cell laminate 2 2 through 2 3.
- the compressive load applied to the cell stack 22 by the load adjusting screw 4 1 is made uniform in the surface direction by the spring module 23 having a plurality of coil springs 53, and Compressive load fluctuations due to expansion and contraction during power generation are absorbed.
- the side surface of the spring module 23 is hidden by housing the fuel cell stack 11 in the case or installing it in the vehicle.
- the compression load acting on the cell stack 22 can be grasped smoothly and accurately without using a load cell. can do. Therefore, an expensive device such as a load cell can be eliminated, and the cost can be reduced.
- the side walls 51a and 52a that wrap around each other are formed on the peripheries of the upper plate 51 and the lower plate 52, and the accommodating space for accommodating the coil spring 53. Even if the structure is closed, it is very easy to grasp the compression load by visually checking the protruding amount of the display shaft 62. You can.
- the load display unit 61 is provided at a plurality of locations in the plane of the spring module 23, cell stacking can be performed by measuring the amount of protrusion of the display shaft 62 in the load display unit 61.
- the compression load acting on the body 2 2 can be grasped smoothly, and the inclination of the upper plate 51 and the lower plate 52 can be grasped, and the balance of the compression load can be grasped. .
- the display shaft 62 of all the load display parts 61 can be visually observed from a predetermined direction, and the balance of compression load can be grasped
- each load display section 61 can be adjusted while visually observing the display shaft 62 from a predetermined direction, reducing the number of adjustment steps, and improving the assembly workability of the spring module 23. Improvement can also be achieved.
- the display shafts 62 of all the load display units 61 can be visually observed from a predetermined direction.
- the compressive load can be fully grasped.
- the load measuring section can be reduced, and the manufacturing cost and labor for adjustment can be reduced.
- the display shaft 62 by rotating the display shaft 62, the screwing amount to the lower plate 52 can be adjusted, and the position of the scale line 68 can be finely adjusted. As a result, even if the accuracy of the position of the graduation line 6 8 determined from the elastic force of the coil spring 5 3 is lowered due to the design tolerance or the deflection of the upper plate 51 or lower plate 52, the display shaft 6 By rotating 2 and finely adjusting the position of the graduation line 6 8, it can be easily corrected and the accuracy can be improved. In addition, since the display shaft 62 fixed to the lower plate 52 is inserted into the through hole 63 of the upper plate 51, the surface of the upper plate 51 and the lower plate 52 is reduced. The relative displacement of the coil spring can be suppressed, and the elastic force by the coil spring 53 can be smoothly exhibited.
- the display shaft 6 2 is fixed to the lower plate 52 with the cap nut 6 6 screwed into the threaded portion 6 4 of the display shaft 62.
- the threaded portion 6 4 of the display shaft 6 2 If the fastening force to the screw hole 6 5 of the lower plate 5 2 is sufficiently strong, as shown in Fig. 5, without the lock nut 6 6 being installed, the screw part 6 4 of the display shaft 6 2 is attached to the lower plate 5 2
- the display shaft 6 2 may be fixed to the lower plate 52 by screwing into the screw hole 65.
- FIGS. 6 and 7 what is shown in FIGS. 6 and 7 is another example of the display shaft 62 that constitutes the load display section 61.
- the display shaft 71 has four display surfaces 72 that are recessed with respect to the outer peripheral surface by forming a flat portion on the outer peripheral surface thereof.
- a scale line 6 8 is formed on the display surface 72 to form a scale portion 6 7.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/304,816 US7901828B2 (en) | 2006-06-20 | 2007-06-18 | Fuel cell |
DE112007001515.2T DE112007001515B4 (de) | 2006-06-20 | 2007-06-18 | Brennstoffzelle mit einem Zellenschichtungskörper und einer Anpressvorrichtung zum Justieren der Druckbelastung auf den Zellenschichtungskörper |
CA2654503A CA2654503C (en) | 2006-06-20 | 2007-06-18 | Fuel cell |
CN2007800228815A CN101473485B (zh) | 2006-06-20 | 2007-06-18 | 燃料电池 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-170514 | 2006-06-20 | ||
JP2006170514A JP5045880B2 (ja) | 2006-06-20 | 2006-06-20 | 燃料電池 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007148810A1 true WO2007148810A1 (ja) | 2007-12-27 |
Family
ID=38833545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/062647 WO2007148810A1 (ja) | 2006-06-20 | 2007-06-18 | 燃料電池 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7901828B2 (ja) |
JP (1) | JP5045880B2 (ja) |
CN (1) | CN101473485B (ja) |
CA (1) | CA2654503C (ja) |
DE (1) | DE112007001515B4 (ja) |
WO (1) | WO2007148810A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009163912A (ja) * | 2007-12-28 | 2009-07-23 | Toyota Motor Corp | 燃料電池ユニット、および、燃料電池 |
EP2432064A1 (en) * | 2009-04-13 | 2012-03-21 | Honda Motor Co., Ltd. | Fuel cell module |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008060006A (ja) * | 2006-09-01 | 2008-03-13 | Chuo Spring Co Ltd | 燃料電池用セル押圧アセンブリ |
JP5227015B2 (ja) * | 2007-12-27 | 2013-07-03 | トヨタ自動車株式会社 | 燃料電池スタック |
JP5277958B2 (ja) * | 2008-12-26 | 2013-08-28 | トヨタ自動車株式会社 | 燃料電池スタックの製造方法 |
JP5415140B2 (ja) | 2009-04-27 | 2014-02-12 | 本田技研工業株式会社 | 燃料電池モジュール |
JP5436919B2 (ja) * | 2009-04-27 | 2014-03-05 | 本田技研工業株式会社 | 燃料電池モジュール |
DE102010007980A1 (de) * | 2010-02-15 | 2011-08-18 | Daimler AG, 70327 | Vorrichtung zur Kompression einer Brennstoffzellenanordnung |
JP5574746B2 (ja) * | 2010-02-24 | 2014-08-20 | 本田技研工業株式会社 | 燃料電池スタック |
KR101106237B1 (ko) | 2010-07-30 | 2012-01-20 | 한국에너지기술연구원 | 연료전지 스택의 체결장치 |
JP5664477B2 (ja) * | 2011-06-28 | 2015-02-04 | トヨタ自動車株式会社 | 燃料電池、および、燃料電池の製造方法 |
DE102012024963B4 (de) | 2012-12-20 | 2023-03-16 | Cellcentric Gmbh & Co. Kg | Brennstoffzellen-Anordnung mit einem geschlossenen Gehäuse |
DE102013206334A1 (de) * | 2013-04-10 | 2014-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Brennstoffzellensystem |
JP6210049B2 (ja) * | 2014-11-04 | 2017-10-11 | トヨタ自動車株式会社 | 車両 |
JP6146394B2 (ja) | 2014-11-13 | 2017-06-14 | トヨタ自動車株式会社 | 燃料電池装置 |
KR102518546B1 (ko) * | 2018-02-09 | 2023-04-07 | 현대자동차주식회사 | 연료전지용 단위 셀 |
JP2019192503A (ja) * | 2018-04-25 | 2019-10-31 | トヨタ自動車株式会社 | 燃料電池及びその製造方法 |
JP2020149787A (ja) * | 2019-03-11 | 2020-09-17 | トヨタ自動車株式会社 | 燃料電池モジュール |
JP7137703B2 (ja) * | 2019-05-31 | 2022-09-14 | 株式会社豊田自動織機 | 蓄電装置 |
EP3944385B1 (en) | 2020-07-23 | 2023-04-19 | AVL List GmbH | Removable load cell design for fuel cell stack |
FR3143885A1 (fr) * | 2022-12-15 | 2024-06-21 | Symbio France | Cartouche et son utilisation, pour maintenir en compression un empilement de cellules électrochimiques |
Citations (8)
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JPH07275542A (ja) * | 1994-04-14 | 1995-10-24 | Brother Ind Ltd | ミシンの布押え圧力表示機構 |
JPH07301210A (ja) * | 1994-05-06 | 1995-11-14 | Nippon Kaihatsu Consultant:Kk | 推力表示器付流体式押圧器 |
JP2003060161A (ja) * | 2001-08-09 | 2003-02-28 | Toshiba Corp | 平型半導体素子用スタック |
JP2004288618A (ja) * | 2003-03-06 | 2004-10-14 | Toyota Motor Corp | 燃料電池 |
JP2005142049A (ja) * | 2003-11-07 | 2005-06-02 | Nissan Motor Co Ltd | 燃料電池スタック |
JP2006114362A (ja) * | 2004-10-15 | 2006-04-27 | Toyota Motor Corp | 燃料電池 |
JP2006120346A (ja) * | 2004-10-19 | 2006-05-11 | Nissan Motor Co Ltd | 燃料電池システム |
JP2006244750A (ja) * | 2005-03-01 | 2006-09-14 | Toyota Motor Corp | 燃料電池スタック、燃料電池セル、その製造方法及びその加重調整方法 |
Family Cites Families (7)
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DE19517042C1 (de) | 1995-05-10 | 1996-12-05 | Mtu Friedrichshafen Gmbh | Brennstoffzellenanordnung |
US6057053A (en) * | 1997-11-25 | 2000-05-02 | Ballard Power Systems Inc. | Compression assembly for an electrochemical fuel cell stack |
DE19910129C1 (de) * | 1999-02-28 | 2000-06-29 | Heliocentris Energiesysteme | Brennstoffzellensystem zur elektrochemischen Energieerzeugung |
JP3724332B2 (ja) | 2000-05-23 | 2005-12-07 | 日産自動車株式会社 | 燃料電池システム |
EP1314215A2 (en) | 2000-07-19 | 2003-05-28 | Ballard Power Systems Inc. | Method and apparatus for measuring displacement of a fuel cell stack during assembly |
JP2004127809A (ja) | 2002-10-04 | 2004-04-22 | Nissan Motor Co Ltd | 燃料電池スタック |
JP2005317359A (ja) | 2004-04-28 | 2005-11-10 | Toyota Motor Corp | 燃料電池システム |
-
2006
- 2006-06-20 JP JP2006170514A patent/JP5045880B2/ja not_active Expired - Fee Related
-
2007
- 2007-06-18 WO PCT/JP2007/062647 patent/WO2007148810A1/ja active Search and Examination
- 2007-06-18 US US12/304,816 patent/US7901828B2/en not_active Expired - Fee Related
- 2007-06-18 CN CN2007800228815A patent/CN101473485B/zh not_active Expired - Fee Related
- 2007-06-18 DE DE112007001515.2T patent/DE112007001515B4/de not_active Expired - Fee Related
- 2007-06-18 CA CA2654503A patent/CA2654503C/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07275542A (ja) * | 1994-04-14 | 1995-10-24 | Brother Ind Ltd | ミシンの布押え圧力表示機構 |
JPH07301210A (ja) * | 1994-05-06 | 1995-11-14 | Nippon Kaihatsu Consultant:Kk | 推力表示器付流体式押圧器 |
JP2003060161A (ja) * | 2001-08-09 | 2003-02-28 | Toshiba Corp | 平型半導体素子用スタック |
JP2004288618A (ja) * | 2003-03-06 | 2004-10-14 | Toyota Motor Corp | 燃料電池 |
JP2005142049A (ja) * | 2003-11-07 | 2005-06-02 | Nissan Motor Co Ltd | 燃料電池スタック |
JP2006114362A (ja) * | 2004-10-15 | 2006-04-27 | Toyota Motor Corp | 燃料電池 |
JP2006120346A (ja) * | 2004-10-19 | 2006-05-11 | Nissan Motor Co Ltd | 燃料電池システム |
JP2006244750A (ja) * | 2005-03-01 | 2006-09-14 | Toyota Motor Corp | 燃料電池スタック、燃料電池セル、その製造方法及びその加重調整方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009163912A (ja) * | 2007-12-28 | 2009-07-23 | Toyota Motor Corp | 燃料電池ユニット、および、燃料電池 |
EP2432064A1 (en) * | 2009-04-13 | 2012-03-21 | Honda Motor Co., Ltd. | Fuel cell module |
EP2432064A4 (en) * | 2009-04-13 | 2013-06-19 | Honda Motor Co Ltd | FUEL CELL MODULE |
Also Published As
Publication number | Publication date |
---|---|
CN101473485B (zh) | 2012-09-19 |
CA2654503C (en) | 2011-08-02 |
JP2008004305A (ja) | 2008-01-10 |
CN101473485A (zh) | 2009-07-01 |
DE112007001515T5 (de) | 2009-05-07 |
US20090176145A1 (en) | 2009-07-09 |
JP5045880B2 (ja) | 2012-10-10 |
US7901828B2 (en) | 2011-03-08 |
DE112007001515B4 (de) | 2018-05-30 |
CA2654503A1 (en) | 2007-12-27 |
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