EP3405734A1 - Method for transferring heat and heat exchanger - Google Patents
Method for transferring heat and heat exchangerInfo
- Publication number
- EP3405734A1 EP3405734A1 EP17700961.0A EP17700961A EP3405734A1 EP 3405734 A1 EP3405734 A1 EP 3405734A1 EP 17700961 A EP17700961 A EP 17700961A EP 3405734 A1 EP3405734 A1 EP 3405734A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- storage medium
- heat
- medium
- storage
- screw
- 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- Withdrawn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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/003—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using thermochemical reactions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F5/00—Elements specially adapted for movement
- F28F5/06—Hollow screw conveyors
-
- 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
- Y02E60/14—Thermal energy storage
Definitions
- the present invention relates to a method for transferring heat, in which heat is transferred from a heat transfer medium to a storage medium and / or from a storage medium to a heat transfer medium.
- the heat transfer medium and the storage medium are supplied with two spaces separated from one another by means of a heat transfer plate.
- the heat transfer then takes place via the heat transfer plate.
- the present invention has for its object to provide a method for transferring heat, which is easy to implement and allows efficient heat transfer.
- This object is achieved by a method for transferring heat from a heat transfer medium to a storage medium and / or from a storage medium to a heat transfer medium in that the method comprises:
- the inventive method is particularly suitable for
- Storage medium is or is provided as a free-flowing storage medium. - -
- the storage medium may be formed or provided, for example, as a powder bed.
- the heat transfer medium and the storage medium are preferably guided without direct or direct contact with each other, in particular past each other.
- heat is provided by exothermic reaction of the storage medium with a reaction medium.
- This provided heat is transferred in particular subsequently and / or even during the heat generation on the heat transfer medium.
- reaction medium and the heat transfer medium are mutually different media or identical media.
- reaction medium and the heat transfer medium are preferably conducted in one and the same or in different and fluidically effective separate line regions.
- Reaction medium is used and comes in the supply to the storage medium and / or when passing through the storage medium in direct contact with the storage medium, which preferably on the one hand a heat-generating exothermic reaction and on the other hand
- the storage medium is included in this specification and the attached
- the storage medium is a storage medium in the separated state, in which the storage medium is separated from the reaction medium.
- storage medium contextually preferably both storage medium in the connected state and storage medium in the disconnected state or only storage medium in the connected state or storage medium in the separated state.
- the storage medium may preferably be conveyed in a state, in particular in the connected state or in the separated state, by means of the screw device.
- the storage medium is conveyed together in both states in the screw device and thereby mixed.
- this can be an efficient heat generation and / or heat transfer can be realized.
- the reaction between the storage medium and the reaction medium is preferably a reversible reaction.
- the storage medium in the connected state is a metal hydroxide and / or in the separated state, a metal oxide.
- the reaction medium is preferably water.
- reaction medium is supplied to the heat generation in the screw device to the conveyed in the screw device storage medium.
- the heat transfer medium is preferably guided in one or more shafts for receiving one or more screw elements of the screw device.
- the heat transfer medium is guided in a jacket which surrounds the one or more screw elements at least partially or completely.
- the leadership of the heat transfer medium is carried out in particular such that a heat transfer from and / or to the storage medium is possible.
- the screw device is operated selectively, in particular alternately, in a heat storage operation and in a heat supply operation, wherein a conveying direction of the
- Storage medium in the heat storage operation is preferably opposite to a conveying direction of the storage medium in the heat supply operation.
- heat is preferably transferred from the heat transfer medium to the storage medium.
- the storage medium heated in this way is preferably subsequently fed to a regeneration device and is preferably further heated there.
- this reaction medium can be separated from the storage medium.
- the regeneration device is preferably used to remove the
- the storage medium is preferably discharged by means of the regeneration device.
- a single storage container is used to hold both loaded storage medium and discharged storage medium.
- the use of one or more variable inner walls of the storage container may be provided in order to store variable amounts of loaded storage medium and discharged storage medium with maximum space utilization.
- loaded storage medium is removed from the storage container for loaded storage medium and fed to the screw device.
- the loaded storage medium is preferably heated, so that the reaction medium is removed from the storage medium.
- the storage medium is preferably conveyed alternately from one storage container to the other storage container and in each case passed through the screw device, so that heat can be stored and heat can be provided alternately.
- the present invention further relates to a heat exchanger.
- the invention is in this respect the task of providing a heat exchanger, which is easy to manufacture and allows efficient heat transfer.
- a heat exchanger for transferring heat from a heat transfer medium to a storage medium and / or from a storage medium to a heat transfer medium
- the heat exchanger comprises a screw device, in particular a twin screw device, wherein the screw device a screw conveyor area for conveying the storage medium and a conduit region for guiding the heat transfer medium, wherein the screw conveyor region and the heat transfer line region are thermally coupled to one another.
- the heat exchanger according to the invention preferably has one or more of the features and / or advantages described in connection with the method according to the invention.
- the heat exchanger according to the invention is preferably suitable for carrying out the method according to the invention.
- the method according to the invention can preferably have one or more of the features and / or advantages described in connection with the heat exchanger.
- the storage medium is free-flowing, in particular powdery.
- the heat transfer medium is preferably liquid or gaseous, for example vaporous. - -
- the screw device comprises at least two storage medium feeds for feeding storage medium to the screw feed area and / or at least two storage medium discharges for discharging storage medium from the screw feed area.
- the supply and / or discharge preferably take place at different points of the screw device with respect to one or more conveying directions.
- the storage medium feeds and / or the storage medium discharges are preferably arranged on mutually opposite end regions of the screw device.
- Storage medium on the one hand and discharged storage medium on the other hand are provided.
- a storage medium supply for supplying loaded storage medium and a storage medium discharge for discharging loaded storage medium are arranged at one and the same end region of the screw device.
- a storage medium supply for supplying discharged storage medium and a storage medium discharge for discharging discharged storage medium are arranged on one and the same end region of the screw device.
- Heat exchanger comprises a regeneration device for regenerating storage medium.
- the regeneration device preferably adjoins the screw device, in particular in a conveying direction of the storage medium in the heat storage operation of the heat exchanger.
- the regeneration device preferably comprises a heating device for heating the storage medium.
- the heating device may for example comprise an electric heater or be designed as an electric heater.
- the heating device is preferably heat to the loaded
- the heat exchanger in particular the screw device, preferably comprises a line region for a reaction medium.
- the line region for a reaction medium preferably opens into the screw conveyor region or is formed in sections by the screw conveyor region.
- reaction medium is then preferably guided or feasible independently of the heat transfer medium.
- the heat exchanger is particularly suitable for use in a heat storage device.
- the present invention therefore also relates to a heat storage device for storing and / or providing heat. - -
- the heat storage device preferably comprises at least one heat exchanger according to the invention.
- the heat storage device preferably has one or more of the features and / or advantages described in connection with the heat exchanger or the method according to the invention.
- the method according to the invention and / or the heat exchanger according to the invention preferably have one or more of the
- the heat storage device preferably further comprises:
- a conveyor for conveying discharged storage medium; and / or a conveyor system for conveying loaded storage medium; and / or one or more storage containers for storage of discharged storage medium and / or loaded storage medium.
- the screw device is preferably designed as a twin-screw device.
- the screw device preferably forms a reactor for reacting the storage medium with the reaction medium.
- the screw device preferably comprises two laterally juxtaposed or otherwise adjacent and / or intermeshing screw elements.
- the loading of the storage medium with reaction medium is in particular a discharge of the heat storage device, that is, a provision of heat. - -
- the discharge of the storage medium is preferably a loading of the heat storage device with heat (heat storage).
- the loading of the heat storage device with heat that is the
- Separation of the reaction medium from the storage medium preferably can be done electrically.
- the heating device provided for this purpose may, for example, be a resistance heater.
- a grid or an arrangement of rods may be provided as heating elements of the heating device.
- the heating device comprises a microwave heating.
- the storage medium may comprise a microwave-active or microwave-active substance.
- the storage medium comprises activated carbon or that the storage medium activated carbon is mixed.
- a direct contact between the storage medium to be discharged and one or more heating elements of the heating device is provided in order to transfer the heat required for discharging the storage medium to the storage medium.
- the storage medium is preferably mixed, in particular in order to achieve a uniform heat transfer and / or heat supply by supplying reaction medium.
- the screw device preferably makes it possible to realize a long and closed reaction space for reacting the storage medium with the reaction medium. As a result, an essentially complete reaction with a slight excess of reaction medium can preferably be realized.
- the excess reaction medium in particular water vapor, can preferably be easily separated from the storage medium, so that the storage medium preferably dry in a
- Storage tank is storable.
- a compensation can be provided by varying a shaft diameter of the screw device and / or a change in the pitch of screw elements of the screw device.
- the screw device preferably comprises two or more screw elements, which in particular have mutually different speeds and / or thread heights. In this way, in particular a mutual cleaning of the screw elements and / or an optimized mechanical processing, promotion and / or mixing of the storage medium can be realized.
- One or more storage medium feeds and / or one or more storage medium discharges preferably have locks and / or security elements, in particular non-return flaps. In this way, an undesired backflow of storage medium, reaction medium and / or heat transfer medium can preferably be avoided.
- a security element may be, for example, a rotary valve.
- a rotary valve By means of such a rotary valve, in particular, a backflow of steam into the screw conveyor region or out of the screw conveyor region can be avoided.
- the heat exchanger comprises a pressure equalization vessel and / or a condensation heat exchanger.
- vaporous or gaseous reaction medium and / or heat transfer medium is condensed by means of a condensation device, in particular after leaving a screw conveying region of the screw device.
- the invention can realize a seasonal heat storage with low losses.
- surplus electricity from a photovoltaic system can be used for discharging storage medium in order to be able to provide heat at any later time through reaction medium supply.
- the efficiency of heat storage and / or heat utilization can be optimized.
- the heat of condensation for domestic water heating can be used.
- the heat exchanger comprises one or more heat exchanger units.
- the screw device is a heat exchanger unit.
- the heat exchanger comprises one or more further heat exchanger units. - -
- a heat exchanger unit is arranged upstream of the screw device with respect to a conveying direction of the storage medium in the heat storage operation and / or in the heat supply operation.
- a heat exchanger unit with respect to a conveying direction of the storage medium in the heat storage operation and / or in the heat supply operation
- a heat exchanger unit may be arranged upstream of the regeneration device with respect to a conveying direction of the storage medium in the heat storage operation and / or in the heat provision operation.
- a heat exchanger unit can be arranged downstream of the regeneration device with respect to a conveying direction of the storage medium in the heat storage operation and / or in the heat provision operation.
- One or more heat exchanger units are preferably thermally coupled to each other, in particular, a common heat transfer medium circuit may be provided.
- heat of the storage medium can be recovered, in particular downstream of the screw device and / or the
- Regeneration device to be supplied storage medium with heat, in particular preheated, heated, which of the from the Schnecken- - -
- FIG. 1 shows a schematic longitudinal section through a first embodiment of a heat exchanger, in which a screw device is provided for transferring heat from a heat transfer medium to a storage medium and / or from the storage medium to the heat transfer medium;
- FIG. 2 is one of FIG. 1 corresponding schematic representation of a second embodiment of a heat exchanger, in which a subsequent to the screw device regeneration device is provided, wherein the heat exchanger is operated in a heat storage operation;
- FIG. 3 is a of FIG. 1 corresponding schematic representation of
- Heat exchanger of Figure 2 wherein the heat exchanger is operated in a heat supply operation.
- FIGS. 2 and 3 shows a schematic representation of a heat storage device, which has a heat exchanger according to FIGS. 2 and 3;
- Fig. 5 is a schematic sectional view of a storage container for storing loaded and unloaded storage medium
- Fig. 6 is a corresponding to FIG. 5 schematic representation of
- FIG. 1 illustrated first embodiment of a designated as a whole with 100 heat exchanger is used to transfer heat from a heat transfer medium to a storage medium and / or from a storage medium to a heat transfer medium.
- the heat exchanger 100 comprises a screw device 102 which, for example, is a twin-screw device 104 and comprises one or more screw elements 106.
- a storage medium can be conveyed linearly in a conveying direction 108 by means of the screw device 102.
- the heat exchanger 100 comprises a storage medium supply 110, via which storage medium to a screw feed region 112 of the
- Screw device 102 can be fed.
- the heat exchanger 100 comprises a storage medium discharge 114, via which storage medium can be discharged from the screw feed region 112.
- reaction medium can be fed.
- reaction medium supply 116 discharges directly into the screw conveyor region 112 filled with storage medium.
- the reaction medium supply 116 is in particular part of a
- the heat exchanger 100 comprises a reaction medium discharge 120 for the removal of reaction medium from the screw conveyor region 112.
- the heat exchanger 100 also includes a conduit region 122 for guiding heat transfer medium.
- the line region 122 in this case comprises a heat transfer medium supply 124 for supplying heat transfer medium to the screw device 102 and a heat transfer medium removal 126 for discharging
- the screw device 102 further preferably comprises one or more shafts 130, preferably each designed as a hollow shaft 128, on which the one or more screw elements 106 are arranged, formed and / or mounted.
- the hollow shaft 128 or the hollow shafts 128 preferably connect the
- Heat transfer medium supply 124 with the heat transfer medium removal 126 so that heat transfer medium can be passed through the screw device 102, in particular without direct contact between the
- the screw device 102 preferably comprises a jacket 132, which preferably surrounds the one or more screw elements 106 and preferably forms part of a housing 134 of the screw device 102 surrounding the screw conveyor region 112. - -
- the jacket 132 preferably also connects the heat transfer medium supply 124 with the heat transfer medium removal 126, so that heat transfer medium can be passed through the screw device 102, in particular without direct contact with the storage medium and / or the reaction medium.
- the first embodiment of the heat exchanger 100 described above functions as follows:
- storage medium formed as a metal oxide is supplied to the screw feed region 112 of the screw device 102 via the storage medium feed 110.
- Reaction medium is fed to the storage medium via the reaction medium supply 116.
- the storage medium reacts with the reaction medium.
- the reaction medium is, for example, water, which reacts in particular with the formation of metal hydroxide with the storage medium.
- Screw elements 106 causes heat released during the reaction of the storage medium with the reaction medium to be uniform and efficient - - The guided in the screw device 102 heat transfer medium is transmitted.
- the heat transfer medium 106 is passed through the screw device 102 in a direction opposite to the direction of conveyance 108 of the storage medium.
- the heat transfer thus takes place preferably in the countercurrent principle.
- heated heat transfer medium can be removed via the heat transfer medium discharge 126.
- reaction medium storage medium loaded storage medium
- reaction medium removal 120 serves to discharge excess reaction medium from the screw feed region 112.
- the reaction medium which in particular is removed in vapor form, can be fed to a condensation device in order to optimize the provision of heat and / or heat.
- a second embodiment of a heat exchanger 100 shown in FIGS. 2 and 3 differs from that shown in FIG. 1, essentially in that two storage medium feeders 110 and two storage medium deliveries 114 are provided.
- the screw device 102 is operable in two different operations with different conveying direction 108.
- FIG. 2 illustrated heat storage operation and the in Fig. 3 provided heat supply operation.
- Heat exchanger 100 is also provided a regeneration device 140 for regenerating the storage medium.
- a storage medium supply 110 and a storage medium removal 114 are respectively provided at opposite ends of the screw device 102.
- the one or more shafts 130 for receiving the one or more screw elements 106 are preferably provided with an inner double guide 136, so that the heat transfer medium in the one or more waves 130 both in a direction parallel to the conveying direction 108 first direction through the Screw conveyor area 112 and against this direction in a second direction again through the
- Screw conveyor area 112 is feasible.
- One end of each shaft 130 thus preferably comprises a deflection section 138 for deflecting and returning the heat transfer medium guided inside the shaft 130.
- Such a double guide 136 can advantageously be in the one or more shafts 130, in particular when the one or more screw elements 106 of the screw device 102 are connected to one another
- Regeneration device 140 of the heat exchanger 100 connects.
- the storage medium conveyed by means of the screw device 102 can then be supplied directly from the screw device 102 to a heating device 142 of the regeneration device 140, in particular without being adversely affected by a line region 122 for guiding the heat transfer medium.
- the regeneration device 140 is used in particular for removing reaction medium from the storage medium. - -
- the storage medium can be heated in particular by direct contact and thereby heat transfer takes place, whereby the bound to the storage medium reaction medium is separated from the storage medium.
- the reaction medium can then be removed and / or used in particular via a reaction medium removal 120 of the regeneration device 140.
- the heat exchanger 100 preferably comprises one or more security elements 144, for example check valves 146, by means of which an undesired backflow or return of storage medium and / or reaction medium and / or heat carrier medium against a predetermined flow direction or conveying direction can be prevented.
- security elements 144 for example check valves 146
- non-return valves 146 As an alternative to the use of one or more non-return valves 146, the use of one or more rotary valves may also be provided.
- the heat exchanger 100 is selectively operable in either a heat storage operation (FIG. 2) or a heat providing operation (FIG. 3).
- heat is transferred from the heat transfer medium to the storage medium and / or the storage medium is heated by means of the regeneration device 140, in order ultimately to remove the reaction medium from the storage medium and thus to store energy (heat).
- FIG. 2 and 3 illustrated second embodiment of the heat exchanger 100 in terms of structure and function with the first embodiment shown in FIG. 1, so that reference is made to the above description in this regard.
- a heat storage device designated as a whole as 148 includes, for example, a heat exchanger 100 according to the heat storage device 100 shown in FIG. 2 and 3 illustrated second embodiment.
- the heat storage device 148 preferably comprises one or more storage containers 150 and one or more conveyor systems 152.
- Storage medium can be stored in particular by means of a storage container 150.
- a conveyor 152 storage medium is preferably from the screw device 102 of the heat exchanger 100 to a storage container 150 and / or from a storage container 150 to the screw device 102 of the heat exchanger 100 can be conveyed.
- two storage containers 150 which are different from one another, and two conveyor systems 152, which are different from one another, are provided.
- a storage container 150 and a conveyor 152 for storage and / or promotion of loaded with reaction medium
- Another storage tank 150 and a further conveyor 152 are used for storage and / or promotion of liberated from reaction medium storage medium. - -
- the heat storage device 148 operates as follows:
- the storage medium is conveyed alternately from one storage container 150 to the other storage container 150.
- the storage medium in each case passes through the screw conveyor region 112 of the screw device 102 of the heat exchanger 100.
- the storage medium is mixed with reaction medium alternately, in particular to provide heat, and freed from the reaction medium, in particular to store heat.
- a heat storage device 148 may contain only a single storage container 150 for receiving loaded and unloaded storage medium.
- Such a storage container 150 is shown in FIGS. 5 and 6 are shown.
- such a storage container 150 comprises a movable, in particular displaceably arranged, partition wall 154, by means of which an interior 156 of the storage container 150 can be subdivided into size-variable storage areas 158.
- the size ratio of the storage areas 158 can be flexibly varied depending on which amount of storage medium is present as a loaded storage medium and as a discharged storage medium.
- a large amount of storage medium can thus be stored with optimum space utilization, - - In particular, regardless of whether this storage medium is present in the loaded or unloaded state.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016200921.4A DE102016200921B4 (en) | 2016-01-22 | 2016-01-22 | Method of transferring heat, heat exchanger and heat storage device |
PCT/EP2017/051010 WO2017125452A1 (en) | 2016-01-22 | 2017-01-18 | Method for transferring heat and heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3405734A1 true EP3405734A1 (en) | 2018-11-28 |
Family
ID=57860863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17700961.0A Withdrawn EP3405734A1 (en) | 2016-01-22 | 2017-01-18 | Method for transferring heat and heat exchanger |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3405734A1 (en) |
DE (1) | DE102016200921B4 (en) |
WO (1) | WO2017125452A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018132467A1 (en) * | 2018-12-17 | 2020-06-18 | ELMESS-Thermosystemtechnik GmbH & Co. KG | Method and device for loading and unloading a thermochemical heat storage medium |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB737118A (en) * | 1953-01-30 | 1955-09-21 | Holo Flite Int Inc | Improvements in or relating to heat exchange devices |
US3765481A (en) * | 1972-02-09 | 1973-10-16 | Bethlehem Steel Corp | Heat exchanger and mixer |
US3955554A (en) * | 1974-04-29 | 1976-05-11 | Collie Robert L | Solar heating system |
DE3320595A1 (en) * | 1983-06-08 | 1984-12-13 | Rheinische Braunkohlenwerke AG, 5000 Köln | SCREW CONVEYOR FOR DISCHARGING SOLID RESIDUES FROM DEVICES OPERATED UNDER HIGH TEMPERATURE AND PRESSURE |
SE530811C2 (en) * | 2007-01-31 | 2008-09-16 | Camiltek Ab | Arrangements and methods for generating and extracting hydration heat |
DE102009052304A1 (en) * | 2009-11-09 | 2011-05-26 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Thermochemical heat storage and method for receiving, converting, storing and releasing heat of reaction |
DE102010009181A1 (en) * | 2010-02-24 | 2011-08-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 80686 | Method and device for storing and emitting heat by means of a phase change material |
DE102013203619A1 (en) * | 2013-03-04 | 2014-09-04 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Heat accumulator device for use in passenger car to store and provide heat, has feed device supplying liquid reactant mediums to heat accumulator mediums, where accumulator and reactant mediums exothermically react with one another |
-
2016
- 2016-01-22 DE DE102016200921.4A patent/DE102016200921B4/en active Active
-
2017
- 2017-01-18 WO PCT/EP2017/051010 patent/WO2017125452A1/en active Application Filing
- 2017-01-18 EP EP17700961.0A patent/EP3405734A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE102016200921B4 (en) | 2020-02-13 |
DE102016200921A1 (en) | 2017-07-27 |
WO2017125452A1 (en) | 2017-07-27 |
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