CN201699084U - Novel fuel cell stack tool clamping apparatus - Google Patents
Novel fuel cell stack tool clamping apparatus Download PDFInfo
- Publication number
- CN201699084U CN201699084U CN2010202289136U CN201020228913U CN201699084U CN 201699084 U CN201699084 U CN 201699084U CN 2010202289136 U CN2010202289136 U CN 2010202289136U CN 201020228913 U CN201020228913 U CN 201020228913U CN 201699084 U CN201699084 U CN 201699084U
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- framework
- end plate
- pressing plate
- frock clamp
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Fuel Cell (AREA)
Abstract
A novel fuel cell stack tool clamping apparatus relates to a tool clamping apparatus, which consists of a framework (1), a pressure plate (2), stainless steel nut components (3), pressure levers (4) and an adjusting piece (5). The top part of the framework (1) is provided with the pressure plate (2). The pressure lever (4) is fixedly connected with the framework (1) through the stainless steel nut component (3) and is arranged at the two sides of the pressure plate (2). The adjusting piece (5) is arranged under the pressure plate (2). The utility model has the advantages of simple structure, convenient cell stack installation and dismantlement and greatly improved tool speed and efficiency. The framework is casted into mold, which reduces weight and cost, improves standardization rate and is favorable to mass production.
Description
Technical field:
The utility model relates to a kind of frock clamp, is specifically related to a kind of new fuel cell heap frock clamp.
Background technology:
Electrochemical fuel cell is a kind of device that hydrogen and oxidant can be changed into electric energy and product, the internal core parts of this device are membrane electrode (Membrane ElectrodeAssembly, be called for short MEA), membrane electrode (MEA) has a proton exchange membrane, two porous conductive materials of film two sides folder, forms as carbon paper.The catalyst that contains the initiation electrochemical reaction of even tiny dispersion on two boundary faces of film and carbon paper is as the metal platinum catalyst.The electronics that the membrane electrode both sides can will take place to generate in the electrochemical reaction process with conductive body is drawn by external circuit, constitutes current circuit.
At the anode tap of membrane electrode, fuel can pass porousness diffusion material (carbon paper) by infiltration, and electrochemical reaction takes place on catalyst surface, lose electronics, form cation, cation can pass proton exchange membrane by migration, arrives the other end cathode terminal of membrane electrode.At the cathode terminal of membrane electrode, contain the gas of oxidant (as oxygen), as air, pass porousness diffusion material (carbon paper), and the generation electrochemical reaction obtains electronics on catalyst surface, forms anion by infiltration.The cation of coming in the anion and the anode tap migration of cathode terminal formation reacts, and forms product.
Adopting hydrogen is fuel, and the air that contains oxygen is in the Proton Exchange Membrane Fuel Cells of oxidant (or pure oxygen is an oxidant), and fuel hydrogen has just produced hydrogen cation (or being proton) in the catalytic electrochemical reaction of anode region.Proton exchange membrane is helping the hydrogen cation to move to the cathodic region from the anode region.In addition, air-flow and oxygen containing air-flow that proton exchange membrane will contain hydrogen fuel are kept apart, and they can not mixed mutually produce the explosion type reaction.
In the cathodic region, oxygen obtains electronics on catalyst surface, forms anion, and moves the hydrogen cation reaction of coming, reaction of formation product water with the anode region.In the Proton Exchange Membrane Fuel Cells that adopts hydrogen, air (oxygen), anode reaction and cathode reaction can be used equation expression:
Anode reaction: H
2→ 2H
++ 2e
Cathode reaction: 1/2O
2+ 2H
++ 2e → H
2O
In typical Proton Exchange Membrane Fuel Cells, membrane electrode (MEA) generally all is placed in the middle of the pole plate of two conductions, and quarter is milled by die casting, punching press or machinery in the surface that every baffler contacts with membrane electrode, and formation is the guiding gutter of one or more at least.These guide plates can be the pole plates of metal material, also can be the pole plates of graphite material.Water conservancy diversion duct on these guide plates and guiding gutter import fuel and oxidant the anode region and the cathodic region on membrane electrode both sides respectively.In the structure of a Proton Exchange Membrane Fuel Cells monocell, only there is a membrane electrode, the membrane electrode both sides are respectively the baffler of anode fuel and the baffler of cathode oxidant.These bafflers are both as current collector plate, and also as the mechanical support on membrane electrode both sides, the guiding gutter on the baffler acts as a fuel again and enters the passage of positive cathode surface with oxidant, and as the passage of taking away the water that generates in the fuel cell operation.
In order to increase the gross power of whole Proton Exchange Membrane Fuel Cells, two or more monocells can be connected into battery pack or the mode by tiling usually by straight folded mode and be unified into battery pack, in straight folded, in-line battery pack, can there be guiding gutter on the two sides of a pole plate, wherein one side can be used as the anode guide face of a membrane electrode, and another side can be used as the cathode diversion face of another adjacent membranes electrode, and this pole plate is called bipolar plates.A series of monocell connects together and forms a battery pack by certain, mode.Battery pack tightens together by front end-plate, end plate and pull bar usually and becomes one.
A typical battery stack generally includes: the water conservancy diversion import and the flow-guiding channel of (1) fuel and oxidant gas are distributed to fuel (as hydrogen, methyl alcohol or the hydrogen-rich gas that obtained by methyl alcohol, natural gas, gasoline) and oxidant (mainly being oxygen or air) in the guiding gutter of each anode, cathode plane equably after reforming; (2) import and export and the flow-guiding channel of cooling fluid (as water) are evenly distributed to the cooling water fluid in each battery pack inner cooling channel, the heat absorption that hydrogen in the fuel cell, the exothermic reaction of oxygen electrochemistry are generated and take battery pack out of after dispel the heat; (3) outlet of fuel and oxidant gas and corresponding flow-guiding channel, fuel gas and oxidant gas are when getting rid of, and portability goes out the liquid that generates in the fuel cell, the water of gaseous state.Usually, the import and export of all fuel, oxidant, cooling fluid are all opened on the end plate of fuel battery or on two end plates.
The Proton Exchange Membrane Fuel Cells group both can be used as the dynamical system of delivery vehicles such as car, ship, can be used as movable type or stationary power generation station again.
Proton Exchange Membrane Fuel Cells generally becomes battery pile by several monocells by series connection or assembling in parallel together.
Existing fuel cell pack is generally by some monocells (monocell is made of guide plate, three in one membreane electrode), flow-collection mother-board, the front and back end plate is formed, and many pull bars are arranged on the end plate of front and back, generally makes pull bar that forward and backward pressing plate is tightly become a fuel cell pack with securing member; The method that the securing member pull bar adds screw is common fastening method.Fuel cell must fully compress the front and back end plate with securing member, but must be pressed to equably in a certain suitable pressure limit, guarantees safe, the efficient operation of fuel cell pack.
When fuel cell pack large-scale production, must at first realize can be to a large amount of monocells (monocell generally be made of guide plate, three in one membreane electrode), positive and negative afflux conduction motherboard and forward and backward end plate be assembled into fuel cell pack on a large scale, and fuel cell pack is moved test.
At present, the fuel cell pack of this common fastening assembling that adds securing member with pull bar has brought huge obstacle to assembling is very unfavorable repeatedly to realizing large-scale fuel cell pack assembly and test.
1, the fastening matching requirements of fuel cell pack rod-pulling type are high especially, must reach the front and back of whole fuel cell pack, each zone is subjected to basically identical and identical fastening force on the end plate, this requirement is very difficult, practical operation tend to make whole fuel cell pack before, the fastening force that certain zone is subjected on the end plate is smaller, and the fastening force that certain zone is subjected to is bigger, and the thrust that causes some zone on the fuel battery pole board to be subjected to is not enough, cause electrode and baffler contact resistance too big, and that some zone is subjected to thrust is too big, cause pole plate distortion or cracked, or cause electrode injured.
When 2, this fuel cell pack was assemblied in fuel cell expanded by heating or shrinkage by pull bar is fastening, the pressure that is subjected on the front and back end plate of fuel cell pack was in different size, can cause pole plate or electrode injured when serious.
All must take much time when 3, each this fuel cell pack is by the fastening assembling of pull bar, can't quick on a large scale assembly and test.
4, this fuel cell mainly is to hold yardstick by manual operation by the fastening assembling of pull bar, and standardization level is low, is unfavorable for the control of quality.
The utility model content:
The purpose of this utility model provides a kind of new fuel cell heap frock clamp, and it is simple in structure, in light weight, tightness is good, easy to detect, easy to assembly fast, standardized rate is high, cost is low, improve frock speed and efficient.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it is made up of framework, pressing plate, stainless steel nut assembly, depression bar and trimmer; The top of framework is provided with pressing plate, and depression bar fixes by stainless steel nut assembly and framework, and is arranged on the pressing plate both sides, and trimmer is arranged on the pressing plate below.
The utility model also is a kind of taboo fixing apparatus, will be installed in battery pile and the fuel cell humidification heap in the framework and adopt electroplax by pressing plate, trimmer and depression bar and nut to be fixed.Be provided with insulation spacer between nut and the quarter pillar; Trimmer is a kind of can the distortion and bigger plastics or the rubber The thin plate of hardness on a small quantity.The outside of framework is the negative or positive electrode as battery pile.
The utility model has the advantages that simple in structure, loading and unloading battery heap improves frock speed and efficient conveniently, greatly; Framework is by the cast molding manufacturing, can weight reduction, reduce cost, improve standardized rate, and help to produce in batches.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model embodiment one;
Fig. 3 is the structural representation of the utility model embodiment two.
Embodiment:
Referring to Fig. 1, this embodiment by the following technical solutions: it is made up of framework 1, pressing plate 2, stainless steel nut assembly 3, depression bar 4 and trimmer 5; The top of framework 1 is provided with pressing plate 2, and depression bar 4 fixes by stainless steel nut assembly 3 and framework 1, and is arranged on pressing plate 2 both sides, and trimmer 5 is arranged on pressing plate 2 belows.
Described framework 1 is made up of fixed charge method end plate 1-1 and four quarter pillar 1-2, and four angles of fixed charge method end plate 1-1 are provided with four quarter pillar 1-2.
Described fixed charge method end plate 1-1 is provided with air vent hole 1-3, limbers 1-4 and location hole 1-5, and location hole 1-5 is arranged on fixed charge method end plate 1-1 two ends, and air vent hole 1-3 and limbers 1-4 are evenly distributed on the fixed charge method end plate 1-1.
Last four the right-angle side symmetric positions of described four quarter pillar 1-2 are provided with four screws.
All be provided with on described pressing plate 2 and the trimmer 5 and the corresponding corresponding aperture of fixed charge method end plate 1-1, air vent hole and limbers.
Described depression bar 4 two ends are provided with screw thread, match with stainless steel nut assembly 3.
This embodiment also is a kind of taboo fixing apparatus, will be installed in battery pile and the fuel cell humidification heap in the framework and adopt electroplax by pressing plate, trimmer and depression bar and nut to be fixed.Be provided with insulation spacer between nut and the quarter pillar; Trimmer is a kind of can the distortion and bigger plastics or the rubber The thin plate of hardness on a small quantity.The outside of framework is the negative or positive electrode as battery pile.
The advantage of this embodiment be simple in structure, loading and unloading battery heap convenient, improve frock speed and efficient greatly; Framework is by the cast molding manufacturing, can weight reduction, reduce cost, improve standardized rate, and help to produce in batches.
Embodiment one: the frock clamp that is used to install 30 membrane electrode fuel cell packs
With reference to Fig. 2, it by framework 1, pressing plate 2, depression bar 4, trimmer 5, fuel cell humidification heap 6, adopt electroplax 7 and fuel cell pack 8 is formed, be disposed with fuel cell pack 8 in the framework 1 from bottom to top, adopt electroplax 7 and fuel cell humidification heap 6, fuel cell humidification heap 6 is provided with trimmer, pressing plate 2 is arranged on the top of trimmer 5, and both sides, pressing plate 2 top are provided with depression bar 4.
The framework of frock clamp is by the one-time formed metal framework of casting technique.The inner surface of metal framework has been done insulation processing, and inner surface comprises the inner surface of end plate and the inner surface of four quarter pillars.The framework end plate of frock clamp is solid reinforcement metal surface plate, and four posts of framework are established reinforcement, and pressing plate is the non-metal board that has two location holes and four air vent holes that is provided with reinforcement.Trimmer is provided with two location holes and four air vent holes.Four quarter pillars are provided with the through hole of four symmetries, have determined the position of four through holes according to the specification of battery pile and humidifier, and one-time formed in the process of cast metal framework.The pad that is provided with between nut and the quarter pillar is an insulation spacer.
The step that battery pile is installed is as follows: at first, two backstays are inserted in the location hole of framework end plate, along two backstays and four quarter pillars, a plurality of fuel cell Dan Dui, a humidifier of adopting electroplax, battery pile are installed on the end plate of framework successively.Cover pressing plate then, be put into and execute on the forcing press heavily, the position that forcing press presses down is lower than the position of framework through hole, adds the trimmer of a suitable thickness, and just the position with through hole adapts, and then inserts two depression bars by four through holes on quarter pillar.At last, insulation spacer on pad between nut and the quarter pillar is screwed in the depression bar top with nut.The module of such 30 membrane electrode fuel cell pack has just been finished.
Embodiment two: the frock clamp that is used to install 20 membrane electrode fuel cell packs
With reference to Fig. 3, its structure is identical with embodiment one with installation steps, difference is that the framework end plate of frock clamp is the plate that hollow out has reinforcement, and four posts of framework are not established reinforcement, and pressing plate is the thin sheet metal that has two location holes and four air vent holes that is provided with reinforcement.
Claims (6)
1. new fuel cell heap frock clamp is characterized in that it is made up of framework (1), pressing plate (2), stainless steel nut assembly (3), depression bar (4) and trimmer (5); The top of framework (1) is provided with pressing plate (2), and depression bar (4) fixes by stainless steel nut assembly (3) and framework (1), and is arranged on pressing plate (2) both sides, and trimmer (5) is arranged on pressing plate (2) below.
2. a kind of new fuel cell heap frock clamp according to claim 1 is characterized in that described framework (1) is made up of fixed charge method end plate (1-1) and four quarter pillars (1-2), and four angles of fixed charge method end plate (1-1) are provided with four quarter pillars (1-2).
3. a kind of new fuel cell heap frock clamp according to claim 1 is characterized in that last four the right-angle side symmetric positions of described four quarter pillars (1-2) are provided with four screws.
4. a kind of new fuel cell heap frock clamp according to claim 1 is characterized in that all being provided with on described pressing plate (2) and the trimmer (5) and the corresponding corresponding aperture of fixed charge method end plate (1-1), air vent hole and limbers.
5. a kind of new fuel cell heap frock clamp according to claim 1, it is characterized in that described fixed charge method end plate (1-1) is provided with air vent hole (1-3), limbers (1-4) and location hole (1-5), location hole (1-5) is arranged on fixed charge method end plate (1-1) two ends, and air vent hole (1-3) and limbers 1-4 are evenly distributed on the fixed charge method end plate (1-1).
6. a kind of new fuel cell heap frock clamp according to claim 1 is characterized in that described depression bar (4) two ends are provided with screw thread, match with stainless steel nut assembly (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202289136U CN201699084U (en) | 2010-06-18 | 2010-06-18 | Novel fuel cell stack tool clamping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202289136U CN201699084U (en) | 2010-06-18 | 2010-06-18 | Novel fuel cell stack tool clamping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699084U true CN201699084U (en) | 2011-01-05 |
Family
ID=43400330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202289136U Expired - Fee Related CN201699084U (en) | 2010-06-18 | 2010-06-18 | Novel fuel cell stack tool clamping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201699084U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633359A (en) * | 2013-12-09 | 2014-03-12 | 新源动力股份有限公司 | Fuel cell stack assembly method |
| CN105304925A (en) * | 2015-11-27 | 2016-02-03 | 上海空间电源研究所 | Fuel cell stack assembly device |
| CN106099153A (en) * | 2015-04-29 | 2016-11-09 | 现代自动车株式会社 | For fastening the apparatus and method of fuel cell pack |
| CN109103486A (en) * | 2018-08-27 | 2018-12-28 | 新源动力股份有限公司 | A kind of long heap of fuel cell assembles fixed device and assemble method |
| CN109411800A (en) * | 2012-09-18 | 2019-03-01 | 智慧能量有限公司 | Fuel-cell stack assembly |
| CN109643819A (en) * | 2016-10-14 | 2019-04-16 | 蒂森克虏伯系统工程有限责任公司 | Assembling device for stacking fuel cells heap |
| CN111602279A (en) * | 2018-04-17 | 2020-08-28 | 株式会社Lg化学 | Apparatus for evaluating performance of fuel cell stack |
| CN113224364A (en) * | 2021-05-25 | 2021-08-06 | 华能国际电力股份有限公司 | Vertical assembling device and method for molten carbonate fuel cell stack |
| CN114196977A (en) * | 2022-01-25 | 2022-03-18 | 厦门仲鑫达氢能技术有限公司 | Vertical electrolytic stack with mosaic structure |
-
2010
- 2010-06-18 CN CN2010202289136U patent/CN201699084U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411800A (en) * | 2012-09-18 | 2019-03-01 | 智慧能量有限公司 | Fuel-cell stack assembly |
| CN109411800B (en) * | 2012-09-18 | 2021-05-28 | 智慧能量有限公司 | Fuel cell stack assembly |
| CN103633359A (en) * | 2013-12-09 | 2014-03-12 | 新源动力股份有限公司 | Fuel cell stack assembly method |
| CN106099153A (en) * | 2015-04-29 | 2016-11-09 | 现代自动车株式会社 | For fastening the apparatus and method of fuel cell pack |
| CN106099153B (en) * | 2015-04-29 | 2021-04-30 | 现代自动车株式会社 | Apparatus and method for fastening fuel cell stack |
| CN105304925A (en) * | 2015-11-27 | 2016-02-03 | 上海空间电源研究所 | Fuel cell stack assembly device |
| CN105304925B (en) * | 2015-11-27 | 2018-02-02 | 上海空间电源研究所 | A kind of fuel cell pile assembles device |
| CN109643819A (en) * | 2016-10-14 | 2019-04-16 | 蒂森克虏伯系统工程有限责任公司 | Assembling device for stacking fuel cells heap |
| US11527772B2 (en) | 2018-04-17 | 2022-12-13 | Lg Chem, Ltd. | Apparatus for evaluating performance of fuel cell stack |
| CN111602279A (en) * | 2018-04-17 | 2020-08-28 | 株式会社Lg化学 | Apparatus for evaluating performance of fuel cell stack |
| EP3680972A4 (en) * | 2018-04-17 | 2020-12-23 | Lg Chem, Ltd. | Apparatus for evaluating performance of fuel cell stack |
| CN111602279B (en) * | 2018-04-17 | 2023-06-13 | 株式会社Lg化学 | Apparatus for evaluating fuel cell stack performance |
| CN109103486A (en) * | 2018-08-27 | 2018-12-28 | 新源动力股份有限公司 | A kind of long heap of fuel cell assembles fixed device and assemble method |
| CN109103486B (en) * | 2018-08-27 | 2023-09-26 | 新源动力股份有限公司 | Fuel cell long stack assembling and fixing device and assembling method |
| CN113224364A (en) * | 2021-05-25 | 2021-08-06 | 华能国际电力股份有限公司 | Vertical assembling device and method for molten carbonate fuel cell stack |
| CN114196977A (en) * | 2022-01-25 | 2022-03-18 | 厦门仲鑫达氢能技术有限公司 | Vertical electrolytic stack with mosaic structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201699084U (en) | Novel fuel cell stack tool clamping apparatus | |
| CN100536217C (en) | Integral type fuel battery stack tandem method | |
| CN100414754C (en) | Integrated fuel cell pile packaging and fastening device | |
| CN101425587B (en) | Integrated apparatus used for fuel cell humidifying | |
| CN201130692Y (en) | Encapsulation apparatus for fastening belt | |
| CN100392900C (en) | Assembling frame for large scale quick assembling and detecting of fuel battery stack | |
| CN100444445C (en) | Flow-collection mother-board and end-plate composite structure for fuel cells | |
| CN100468843C (en) | Guiding pole plate capable of being used as proton exchanging film and method for manufacturing same | |
| CN1770534A (en) | Fuel cell with hydrogen gas air temperature and humidity adjusting device | |
| CN100388548C (en) | Improved version of hold-down gear for fuel cell pile | |
| CN101459255B (en) | Package and installation method for integrated fuel cell pack | |
| CN100536204C (en) | Apparatus for pressing membrane electrode for fuel cell pile | |
| CN102005593A (en) | Novel system-integration type modular fuel cell system | |
| CN2768218Y (en) | Fuel cell with compact structure | |
| CN100536210C (en) | Design for collecting plate of integrated fuel cell | |
| CN201117729Y (en) | Fuel cell stack fastening device | |
| CN101436673B (en) | Integration type fuel battery easy to mount/demount | |
| CN100517825C (en) | Fuel cell pile suitable for mass production and assembling | |
| CN100414761C (en) | Fuel cell stack testing device with power generation function | |
| CN2768217Y (en) | Fuel cell with anti-backfire function | |
| CN1815788A (en) | Fuel cell with high operation stability | |
| CN100414762C (en) | Single module type fuel cell | |
| CN100342575C (en) | Hydrogen storage device for fuel battery | |
| CN101894961B (en) | New double-core open type hydrogen-air fuel cell | |
| CN200950456Y (en) | Package structure of integrated fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20120618 |