EP2203951A1 - Fuel cell arrangement - Google Patents
Fuel cell arrangementInfo
- Publication number
- EP2203951A1 EP2203951A1 EP08844611A EP08844611A EP2203951A1 EP 2203951 A1 EP2203951 A1 EP 2203951A1 EP 08844611 A EP08844611 A EP 08844611A EP 08844611 A EP08844611 A EP 08844611A EP 2203951 A1 EP2203951 A1 EP 2203951A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- gas
- fuel cell
- anode
- reforming units
- 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.)
- Withdrawn
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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
-
- 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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
- H01M8/0631—Reactor construction specially adapted for combination reactor/fuel cell
-
- 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
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
-
- 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
- H01M8/14—Fuel cells with fused electrolytes
- H01M2008/147—Fuel cells with molten carbonates
-
- 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 invention relates to a fuel cell assembly according to the preamble of claim 1.
- Conventional fuel cell assemblies particularly those of molten carbonate fuel cells, include fuel cells arranged in the form of a fuel cell stack, each comprising an anode and a cathode and an electrolyte matrix disposed therebetween, an anode inlet provided on one side of the fuel cell stack for supplying fresh fuel gas to the anodes and an anode exit to the anode Discharging spent fuel gas from the anodes, wherein gas flow paths are provided within the fuel cells to bypass the fuel gas in a given main flow direction to the anodes.
- Reforming units serve to convert a fuel supplied to the reforming units at a fuel inlet into reforming fuel or fuel gas discharged from the reforming units at a reformer fuel outlet, the reforming units being disposed between adjacent fuel cells in thermal contact therewith within the fuel cell stack, and the reformer fuel outlet of the reforming units opens at the side of the fuel cell stack at which the anode inlet of the fuel cell and a fuel delivery system for distributing the fuel to be reformed is located at the individual reforming units.
- the reforming units thus serve, on the one hand, for producing fuel gas convertible into the fuel cells, produced by reforming the fuel fed to the reforming units and, on the other hand, for internal cooling of the fuel cell stack due to the endothermic nature of the reaction taking place in the reforming units, due to thermal contact with the fuel cells the latter heat is withdrawn.
- DE 699 10 624 T2 which is based on EP 1 157 437 B1
- a fuel cell assembly of the type described above is known, in which on the side of the anode inputs of the fuel cell stack combined fuel cells, a gas cap for distributing the fuel gas is provided on the anode inputs , under which the fuel delivery system is housed, which serves to distribute the fuel to be reformed to the individual reforming units.
- This consists of a fuel supply manifold, which from the outside via a fuel inlet pipe, the fuel to be reformed can be fed, and which is connected via respective supply lines to the individual reforming units.
- the Reformiericaen are formed by plate-shaped elements which are arranged parallel to the fuel cell between them.
- the reforming units have fuel inlet openings on the same side of the fuel cell stack at which both the anode inlets and the fuel outlets of the reforming units are located.
- the fuel to be reformed fed to the individual reforming units by the fuel delivery system is therefore in the same plane on a U-shaped path through the interior of the reforming units from the side of the fuel cell stack, in which the anode inputs are located, first in DC to the main flow direction of the fuel gas to the Anodes or in the leading past the anodes gas flow paths in the reforming units and then returned in countercurrent thereto.
- the two opposite flow paths within the reforming units are separated in the known fuel cell assembly by a baffle plate.
- DE 102 32 331 B4 discloses a fuel cell arrangement with fuel cells arranged in the form of a fuel cell stack, each containing an anode and a cathode and an electrolyte matrix arranged therebetween, in which an anode inlet for supplying fresh fuel gas to one side of the fuel cell stack Anodes is provided, and which has an anode outlet for discharging spent fuel gas from the anodes, wherein within the fuel cells in turn gas flow paths are provided to pass the fuel gas in a given main flow direction to the anodes.
- cathode inlet For supplying fresh cathode gas to the cathodes of the fuel cells, these have a cathode inlet and for discharging spent cathode gas from the cathodes a cathode outlet, wherein within the fuel cells Gas flow paths are provided to pass the cathode gas to the cathodes.
- the gas flow paths for the cathode gas have partially opposite to the main flow direction of the same extending parts which are disposed within the fuel cell or between adjacent fuel cells, wherein the counter to the main flow direction of the cathode gas extending parts of the gas flow paths cathode gas supplied with a cooling in the fuel cell correspondingly low temperature is.
- the supplied cathode gas provides an internal cooling of the fuel cell stack, which causes a lowering of the temperature and thus a higher current density, with which the fuel cell can be operated.
- the object of the invention is to provide a fuel cell assembly of the type mentioned, in which to be reformed fuel is converted by internal reforming, and which is operable with a high current density.
- the invention provides a fuel cell assembly having fuel cells arranged in the form of a fuel cell stack, each containing an anode and a cathode and an electrolyte matrix therebetween, with an anode inlet provided on one side of the fuel cell stack for supplying fresh fuel gas to the anodes and an anode exit for discharging spent fuel gas from the anodes, wherein gas flow paths are provided within the fuel cells to bypass the fuel gas in a given main flow direction to the anodes, with reforming units for converting a fuel supplied to the reforming units at a fuel inlet into reformer fuel flowing from a reformer fuel outlet Reforming units is discharged, wherein the reforming units are arranged between adjacent fuel cells in thermal contact with these within the fuel cell stack , and wherein the reformer fuel outlet of the reforming units on the side of Fuel cell stack opens at which the anode input of the fuel cell is located, and with a fuel delivery system for distributing the fuel to be reformed to the individual reforming units.
- the fuel inlets of the reforming units are provided at the anode inlet opposite side of the fuel cell stack and the reforming units are flowed through in countercurrent to the main flow direction of the fuel gas in the leading past the anodes gas flow paths of the fuel to be reformed, and that for the distribution of provided fuel to be reformed fuel delivery system is provided on the anode side opposite side of the fuel cell stack.
- a particular advantage of the invention is that there is no deflection of the fuel in the plane of the reforming units, as is the case in the prior art. As a result, the pressure losses are significantly reduced (50%), so that a much higher gas throughput than in fuel cell systems with the same dimensions of the components is possible. As a result, systems of the previous order of magnitude can also be operated with biogenic gases which have a lower calorific value than methane.
- the cathode gas is conducted in crossflow with the fuel, the temperature in the region of the cathode inlet is lower than in the region of the cathode outlet.
- the positioning of catalyst material is dispensed with in the corresponding areas.
- a gas hood serving to receive the spent fuel gas discharged from the anode outlets is provided on the side of the fuel cell stack opposite the anode inputs, where the Fuel delivery system is arranged.
- the gas cap defines a space receiving the spent fuel gas discharged from the anode outlets, in which respective fuel supply lines connected to the fuel inlets of each reforming unit and a distribution pipe connected to each of the fuel supply lines are arranged.
- the distributor line is connected to the fuel feed lines via respective intermediate lines which each contain a dielectric separator for electrical insulation of the reformer from the distributor line.
- the gas cap defines a space receiving the spent fuel gas discharged from the anode outlets, in which respective fuel supply lines connected to the fuel inlets of each reforming unit are arranged, and the gas cap includes a fuel gas exhausted from at least one gas guide channel for discharging fuel to the fuel feeds forming the anode exits space forming the first gas guide path and, sealed against this and connected to the fuel feeds.
- the gas guide channel or the gas guide channels are connected to the fuel feeds via respective intermediate lines, each containing a dielectric separator for electrically insulating the reformer from the distribution line.
- the gas guide channel may be formed by a running on a longitudinal side of the gas hood hollow profile.
- the gas hood is formed as a composite of sheets and cross members, in which the hollow sections are integrated as side parts of the gas hood.
- one of the hollow profiles with openings for the discharge of the Anodenausgang formed in the bounded by the gas hood space anode exhaust gas.
- the hollow profile is formed on its inside with holes through which anode exhaust gas enters the hollow profile.
- the anode exhaust gas is discharged to the outside via connecting pieces on its outside.
- the reforming units are preferably formed by plate-shaped elements arranged in parallel to the fuel cells, which in each case exclusively define gas flow paths which are flowed through in countercurrent to the main flow direction of the reformed fuel gas in the gas flow paths leading past the anodes.
- the gas flow paths defined by the plate-shaped members may include a material of a reforming catalyst.
- the Reformierticianen may contain Bipolarbleche by which adjacent fuel cells of the fuel cell stack are limited and electrically contacted.
- the bipolar plates may confine the gas flow paths in the reforming units toward one of the adjacent fuel cells.
- FIG. 1 shows a schematic perspective partial view of a fuel cell arrangement with fuel cells arranged in the form of a fuel cell stack for explaining the basic flow of the gases through the fuel cells according to an embodiment of the invention
- Fig. 2 is a schematic view of a fuel cell from the end face of the fuel cell stack shown in Fig. 1, wherein the flow paths provided in the fuel cell stack reforming units and at the anodes of Fuel cells are shown over, according to an embodiment of the invention;
- Fig. 3 is a schematic view of a fuel cell from the end face of the fuel cell stack shown in Fig. 1, wherein the flow paths are represented by provided in the fuel cell stack reforming units and the anodes of the fuel cell, according to another embodiment of the invention and
- Fig. 4 is a perspective view of a gas hood with integrated hollow profiles for the supply and discharge of gases.
- the fuel cell stack shown schematically in FIG. 1 in a partial perspective view, designated generally by the reference numeral 10, contains a number of fuel cells 12.
- the fuel cells 12 each contain an anode 1, a cathode 2, as indicated only schematically in FIG. 1 and an electrolyte matrix 3 interposed therebetween.
- reforming units 18 formed by plate-shaped members are provided in the fuel cell stack 10.
- the reforming units 18 may be arranged at the end of the fuel cell stack 10 or in particular between two adjacent fuel cells 12. In each case a plurality of fuel cells 12 can be combined into one group and the reforming units 18 can be arranged on one or between two adjacent groups of fuel cells 12.
- the bipolar plates 4 may also form constituents of the reforming units 18 or be contained in these.
- the Bipolarbleche 4 serve to lead the streams of a fuel gas B and a cathode gas or oxidant gas O separated from each other via the anode 1 and via the cathode 2 of respective fuel cells.
- the electrical contact to the anode 1 and to the cathode 2 is produced by respective current collectors arranged on these electrodes, which are not specifically shown in FIG.
- the flow of the fuel gas B and the cathode gas O enforce the fuel cell stack 10 transversely to each other, ie in the manner of a cross-flow.
- An anode inlet 13 serves to supply fresh fuel gas B to the anodes 1 and an anode outlet 14 for discharge of spent fuel gas B of the same.
- a cathode inlet 15 serves to supply fresh cathode gas or oxidizing gas O to the cathodes 2 and finally a cathode outlet 16 for discharging spent cathode gas O therefrom.
- FIGS. 2 and 3 show a section through each of a reforming unit 18 transverse to the longitudinal direction of the fuel cell stack 10 and in particular represent the gas flow paths through the reforming units 18 and the gas flow paths along the anodes 1, wherein the gas flow paths through the reforming units 18 by bold arrows and the gas flow paths are shown at the anodes 1 by thin arrows.
- the reforming units 18 are supplied with fuel to be reformed at a fuel inlet 181 and discharged after reforming at a reformer fuel outlet 182.
- the adjacent fuel cell (s) 12 within the fuel cell stack 10 is deprived of heat, thereby causing it to cool, due to the fact that the reforming units 18 are in thermal contact therewith.
- the outlet 182 of the reforming units 18, at which the reformed fuel is discharged, is located on the side of the fuel cell stack 10, at which also the anode inlet 13 of the fuel cell 12 is located. That is, the reformed fuel discharged from the reforming units 18 is available to the anodes 1 at its entrance 13 as fuel gas.
- the fuel inlets 181 of the reforming units 18 are provided on the side of the fuel cell stack 10 opposite to the anode inlet 13, so that the flow direction of the fuel to be reformed (bold arrows) through the reforming units 18 countercurrently to the main flow direction of the fuel gas B (with thin As can be seen in FIGS.
- the low temperature cathode gas passed in cross flow to the fuel stream enters the cathode entrance, it may be desirable to reduce the fuel flow in the cathode entrance area to prevent reforming and concomitant cooling there.
- This can be realized with the device according to the invention by simple measures by the fuel flow is variably adjustable, as will be described in more detail below.
- a fuel delivery system indicated generally by the reference numeral 19, which serves to distribute the fuel to be reformed to the individual reforming units 18.
- the fuel delivery system 19 includes fuel inlets 191 connected to the fuel inlets 181 of each reforming unit 18 by which the fuel to be reformed is distributed evenly throughout the width of the reforming units 18 and a manifold 192 (FIG. 1) connected to each of these fuel inlets 191 2) or a channel 41 (FIG. 3) connected to each of these fuel feeds 191.
- the distribution line 192 or the channel 41 is connected via respective intermediate lines 193 with the fuel supply lines 191.
- the intermediate lines 193 each contain a dielectric separator 194, which causes electrical isolation of the reforming units 18 from the manifold 192 and the channel 41, respectively.
- the recessed by the fuel supply lines 191 areas of the reforming units are provided with covers 6 and thereby prevent fuel access there.
- covers 6 In order to completely exclude the corresponding cathode-input-side regions of the reforming units from the flow of fuel, walls 5 extending parallel to the direction of flow may be provided in the reforming units for partitioning.
- Corresponding covers 7 or walls 5 and a limited by a line 7, reduced in width fuel supply 191 are indicated in Figure 2 by broken lines.
- the positioning of catalyst material can be dispensed with in the corresponding cathode-input-side regions.
- a gas hood 24 is provided on the side of the fuel cell stack 10 opposite the anode inputs 13, which serves to receive the spent fuel gas discharged from the anode outlets 14 and in which the fuel delivery system 19 is arranged.
- a similar gas cap 23 is provided, which serves for supplying the reformed fuel gas to the anode inputs 13.
- the gas cap 24 defines a space receiving the spent fuel gas discharged from the anode outlets 14, in which the fuel supply lines 191 connected to the fuel inlets 181 of each reforming unit 18 and the distribution line 192 connected thereto and the intermediate lines 193, each containing said dielectric separator 194 are arranged.
- the gas cap 24 again delimits a spent fuel gas exhausted from the anode outlets 14, in which the respective fuel supply lines 191 connected to the fuel inlets 181 of the reformers 18 are arranged, but the gas cap 24 is also so being configured to include a first gas routing path 14a forming the space for receiving the spent fuel gas from the anode exits 14, and one or more gas routing channels 41 contra-rotating against said first gas routing path 14a sealed and connected to the fuel supply lines 191, and which are provided for the delivery of the fuel to be reformed to the fuel supply lines 191.
- the gas guide channels 41 are connected to the fuel feeds 191 via the said intermediate lines 193, which respectively contain the said dielectric separating element 194.
- the one or more gas guide channels 41 are arranged in the embodiment shown in Fig. 3 on the longitudinal side of the gas cap 24 in the form of a frame tube thereof, which extends on both longitudinal sides thereof.
- FIG. 4 shows such a gas hood 24 formed with hollow profiles 51 and 52 in greater detail.
- the hollow sections 51 and 52 which consist of rectangular tubes, form in a composite with plates 56, 58 and cross members 57, the gas cap 24, wherein the hollow sections 51 and 52 form the side parts, but at the same time also be used for the supply and discharge of gases .
- the hollow profile 51 is used to transfer the fuel into the fuel supply lines 191.
- holes 54 are provided on the inner sides of the hollow profile 51, to which the intermediate lines 193 are connected.
- To initiate the fuel from an external source into the hollow profile 51 is an Anschuss 55.
- the hollow profile 51 on the other side of the gas cap 24 opposite hollow section 52 serves to dissipate the effluent from the anodes anode exhaust gas.
- 52 not shown holes are provided on the inside of the hollow profile, which connect the cavity of the hollow profile 52 with the interior of the gas cap 24, which is in communication with the anode outputs 14.
- the removal of the anode exhaust gas collected in the hollow section 52 finally takes place via connecting pieces 53 on the outside of the hollow profile 52.
- the holes and connecting pieces are distributed over the length and their cross section is designed such that a uniform flow is achieved across the fuel cell stack.
- the gas cap 24 in the described embodiment is z. B. produce as a welded construction of a few components.
- the fact that parts of the gas hood also serve as media guides creates a multifunctional component that, despite its complex functionality, is simple and clear in design.
- the arrangement of the hollow profile 51 at the outer edge of the gas cap 24 has the further advantage that due to the distance of the connection points, the intermediate lines 193 can be performed with a correspondingly large length. Unavoidable Relatiwerschiebitch between stack and gas cap 24 lead due to the lower lever arm to lower force transmission, since that the risk of leaking is reduced.
- the reforming units 18 are formed in the described embodiments by plate-shaped elements, which are arranged parallel to the fuel cells 12, and may contain a material of a reforming catalyst in a conventional arrangement and manner.
- the material of the reforming catalyst may be disposed in gas flow paths defined by said plate-shaped elements.
- the reforming units 18 may contain Bipolarbleche 4 through which each adjacent fuel cell 12 are limited from each other and electrically contacted.
- the bipolar plates 4 may limit the gas flow paths in the reforming units 18 toward one of the adjacent fuel cells 12.
- An electrical contacting of Bipolarbleche 4 can be done in a conventional manner by suitable current collectors.
Landscapes
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007051514A DE102007051514A1 (en) | 2007-10-29 | 2007-10-29 | A fuel cell assembly |
PCT/EP2008/009092 WO2009056272A1 (en) | 2007-10-29 | 2008-10-28 | Fuel cell arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2203951A1 true EP2203951A1 (en) | 2010-07-07 |
Family
ID=40193492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08844611A Withdrawn EP2203951A1 (en) | 2007-10-29 | 2008-10-28 | Fuel cell arrangement |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110020718A1 (en) |
EP (1) | EP2203951A1 (en) |
KR (1) | KR20100091203A (en) |
DE (1) | DE102007051514A1 (en) |
WO (1) | WO2009056272A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011100621A1 (en) | 2011-05-05 | 2012-11-08 | Mtu Onsite Energy Gmbh | Fuel cell assembly has reforming unit comprising anode inlet-side fuel inlet provided for supplying fuel from hollow frame of anode inlet gas cap to fluid outlets |
AT523488B1 (en) * | 2020-02-06 | 2021-12-15 | Avl List Gmbh | Protective reformer device for protecting an anode section of a fuel cell stack |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5175062A (en) * | 1991-01-30 | 1992-12-29 | Energy Research Corporation | Reforming unit for fuel cell stack |
US5348814A (en) | 1992-03-11 | 1994-09-20 | Matsushita Electric Industrial Co., Ltd. | Internal reforming type molten carbonate fuel cell |
JP3316393B2 (en) * | 1996-09-25 | 2002-08-19 | 三菱電機株式会社 | Fuel cell power generation system and operation method thereof |
US6200696B1 (en) | 1999-02-16 | 2001-03-13 | Energy Research Corporation | Internal reforming fuel cell assembly with simplified fuel feed |
DE10232331B4 (en) | 2002-07-17 | 2005-06-16 | Mtu Cfc Solutions Gmbh | A fuel cell assembly |
KR100750794B1 (en) * | 2006-02-07 | 2007-08-20 | 두산중공업 주식회사 | Molten Carbonate fuel cell provided with indirect internal steam reformer |
KR100768574B1 (en) * | 2006-12-29 | 2007-10-19 | 두산중공업 주식회사 | Separator for molten carbonate fuel cell |
-
2007
- 2007-10-29 DE DE102007051514A patent/DE102007051514A1/en not_active Ceased
-
2008
- 2008-10-28 US US12/918,533 patent/US20110020718A1/en not_active Abandoned
- 2008-10-28 KR KR1020107011876A patent/KR20100091203A/en not_active Application Discontinuation
- 2008-10-28 WO PCT/EP2008/009092 patent/WO2009056272A1/en active Search and Examination
- 2008-10-28 EP EP08844611A patent/EP2203951A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
KR20100091203A (en) | 2010-08-18 |
WO2009056272A1 (en) | 2009-05-07 |
US20110020718A1 (en) | 2011-01-27 |
DE102007051514A1 (en) | 2009-04-30 |
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Inventor name: PETERHANS, STEFAN, IBRAHIM Inventor name: WAGNER, WOLFGANG Inventor name: WUERTENBERGER, UWE Inventor name: BEDNARZ, MARC |
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