WO2023062013A1 - Wasserabscheidevorrichtung für eine brennstoffzelle mit beweglicher ventileinrichtung - Google Patents
Wasserabscheidevorrichtung für eine brennstoffzelle mit beweglicher ventileinrichtung Download PDFInfo
- Publication number
- WO2023062013A1 WO2023062013A1 PCT/EP2022/078263 EP2022078263W WO2023062013A1 WO 2023062013 A1 WO2023062013 A1 WO 2023062013A1 EP 2022078263 W EP2022078263 W EP 2022078263W WO 2023062013 A1 WO2023062013 A1 WO 2023062013A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- collection volume
- valve
- valve device
- fuel cell
- 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.)
- Ceased
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
- H01M8/04—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
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
- H01M8/04164—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by condensers, gas-liquid separators or filters
-
- 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
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04253—Means for solving freezing problems
-
- 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 water separator for a fuel cell, which has an antifreeze device with a movable valve device.
- the invention also relates to a fuel cell device for a motor vehicle, which has such a water separation device.
- fuel cells are also used as electrical energy sources.
- the fuel cell is a galvanic cell in which electrical energy is generated based on a chemical reaction between a fuel and an oxidizing agent. Hydrogen is the preferred fuel used in motor vehicles. Atmospheric oxygen is used as the oxidizing agent.
- the fuel cell consists of two electrodes (anode and cathode), which are separated from each other by a semi-permeable membrane. The two reactants, fuel and oxidant, are fed continuously to the electrodes. The membrane is only for one of the types of ions released during the reaction, e.g. B. protons, permeable.
- the reaction between the oxidizing agent and the fuel releases electrical energy, which is used to operate the motor vehicle's electric motors.
- water is produced as a reaction product on the cathode side.
- nitrogen as the main component of air
- water gradually diffuse from the cathode via the membrane to the anode. This is undesirable because nitrogen and water block the hydrogen supply channels and reduce the even distribution of the hydrogen within the anode, which adversely affects the efficiency of the fuel cell.
- it must be evacuated from the electrodes. This is often done by blowing out.
- the water-containing gas mixture (aerosol) that leaves the electrodes is fed to a water separator on the outlet side, in which the Water is separated from the remaining gas.
- the separated water is collected in a collection container and released from time to time through a valve. If the fuel cell is operated below the freezing point of water, ice can form in the area of the collection container and the valve. Due to the very high pressure forces that occur as a result, water separators, collection tanks and valves can be damaged or destroyed. The risk of ice formation is particularly high when the fuel cell is switched off. To avoid ice formation, the affected components can be heated electrically or by means of a heat transfer fluid. However, the technical infrastructure required for this is complex, expensive and prone to defects.
- a water separating device for a fuel cell has a separating device for separating water from a water-containing gas mixture discharged from the fuel cell.
- the water separation device also includes a container with a collection volume for collecting or catching the water separated by the separation device.
- the water separation device also includes an antifreeze device with a movable or displaceable valve device for draining water from the collection volume, the valve device being coupled to the collection volume in a pressure-transmitting manner, the antifreeze device being designed in such a way that when the water in the collection volume freezes, the valve device moves increasing the collection volume moves towards a freezing position, and that when the frozen water in the collection volume melts, the valve means moves back towards a melting position, reducing the collection volume.
- Ice has a specific volume that is approx. 8-10% larger than water. If the water that has accumulated in the container freezes to form ice, very high pressure forces arise if expansion of the ice or adequate volume equalization is not possible.
- the idea on which the invention is based is to be seen in providing an antifreeze device that enables variable volume equalization in the collection volume. In other words, the antifreeze device enables the collection volume to be increased as required if the water in the collection volume freezes, and a corresponding reduction in the collection volume if the ice in the collection volume liquefies.
- the valve device has two opposite surface sides.
- the valve device On one side of the surface it is connected to the collection volume and, depending on the filling level, to the water or ice that has collected in it, in a pressure-transmitting connection.
- the valve device On the other side of the surface, the valve device is in force-transmitting connection with the environment (atmospheric pressure, ambient air).
- the valve device can also be coupled on the other surface side to a restoring device, which exerts a force on it that opposes the force on the side of the collection volume (see claim 2).
- the valve device is movably or displaceably mounted along a displacement path. Along this displacement distance, it assumes a position in which the forces acting on it on opposite surface sides are in equilibrium. If there is water in the collection volume, the valve assembly is in a melt position.
- the valve device then moves along the displacement path in the direction of the freezing position, in which equilibrium of forces then again prevails. If the ice in the collection volume melts, this results in a one-sided reduction in the pressure force on the valve device on the side of the collection volume due to the shrinkage of the ice volume (e.g. due to the evacuation effect in the space between the valve device and the melting ice). The valve device then moves along the displacement path in the direction of the melting position until there is a balance of forces again.
- the antifreeze device is dimensioned in such a way that the increase in the collection volume is large enough to prevent damage to the water separation device due to the formation of ice.
- the antifreeze device can be designed or dimensioned in such a way that the collection volume can expand or increase by at least 8% when ice forms.
- damage to the water separation device in the event of ice formation within the collection volume can be reliably avoided.
- the operational reliability of the water separation device is thus ensured even at temperatures below freezing.
- the costs and the susceptibility to failure are low. Electrical or fluid-based heating can be dispensed with, which considerably reduces the costs, the technical complexity and the susceptibility of the water separation device to failure.
- the valve device as part of the antifreeze device, it has a double function, which keeps the costs, the number of components and the construction effort low.
- the water separating device has a drain channel for draining the liquid water separated in the water separating device by means of the valve device.
- the discharge channel is formed in a boundary wall of the container and is fluidically coupled to the valve device.
- the antifreeze device has a restoring device, coupled in a force-transmitting manner to the valve device, for exerting a restoring force on the valve device directed in the direction of the melting position, with the restoring force increasing when the valve device moves in the direction of the freezing position, and wherein the restoring force is reduced when the valve device moves in the direction of the melting position.
- a reset device ensures the return movement of the valve device to the melting position. It is also possible to set the restoring force by selecting the restoring device accordingly.
- the restoring device can have a mechanical spring (e.g. made of metal or plastic), an elastomer (e.g. rubber) or a gas pressure spring, which is coupled to the valve device in a force-transmitting manner.
- a mechanical spring e.g. made of metal or plastic
- an elastomer e.g. rubber
- a gas pressure spring which is coupled to the valve device in a force-transmitting manner.
- the container has a cavity on a boundary wall, the valve device being displaceably arranged in the cavity, and the restoring device being arranged on the side of the valve device facing away from the collection volume.
- a fuel cell device is provided. This shows:
- a fuel cell which has an anode device and a cathode device, wherein the anode device has an anode outlet for discharging water-containing gas mixture from the anode device, and wherein the cathode device has a cathode outlet for discharging water-containing gas mixture from the cathode device,
- At least one water separation device according to one of claims 1 to 4, which is coupled to the anode output and / or the cathode output.
- FIG. 1 shows a schematic representation of a fuel cell device for a motor vehicle
- FIG. 2 shows a schematic representation of the fuel cell and the associated water separation devices
- a motor vehicle 1 with an exemplary embodiment of a fuel cell device 2 is shown schematically in FIG.
- the core of the fuel cell device 2 is the actual fuel cell 3, which acts as a galvanic cell.
- the fuel cell 3 has an anode device 4 and a cathode device 5, which are separated from one another by an electrolyte device 6 (ion conductor).
- the electrolyte device 6 can be designed, for example, as a polymer electrolyte membrane, which is permeable only to protons but not to electrons. Alternatively, certain ceramics or other solid electrolytes can also be used.
- the anode device 4 and the cathode device 5 have electrode plates or bipolar plates (not shown), which are preferably made of metal or carbon and are coated with a catalyst such as platinum or palladium.
- the fuel cell device 2 also includes a fuel supply device 7 which is coupled to an input 8 of the anode device 4 in order to supply it with fuel.
- the fuel supply device 7 has a fuel tank 9 in which the fuel is stored.
- the fuel used is hydrogen, which is stored in the fuel tank 9 in liquid or gaseous form under very high pressure (e.g. 350 bar to 700 bar).
- the fuel tank 9 is connected to the input 8 of the anode device 4 via a supply line 10 .
- a shut-off valve 11 and a pressure reducer 12 are arranged one behind the other in the supply line 10 downstream (arrow) of the fuel tank 9 .
- the pressure reducer 12 reduces the gas pressure to about 10 bar to 30 bar.
- An electrically actuated metering valve 13 is provided further downstream in the supply line 10, by means of which a targeted metering of the hydrogen into the anode device 4 is possible.
- the metering valve 13 is controlled by a control device 14 which is assigned to the fuel cell device 2 and is electrically connected to the metering valve 13 .
- a pressure sensor 15 is arranged between the metering valve 14 and the anode device 4 , which is connected to the control device 14 and provides the hydrogen pressure value at the input 8 of the anode device 4 .
- the pressure within the anode device 4 ranges between 0.8 bar and 4 bar.
- the fuel cell device 2 also includes an oxidizing agent supply device 16 which is coupled to the cathode device 5 in order to supply it with oxidizing agent.
- atmospheric oxygen serves as the oxidizing agent, which is supplied to the cathode device 5 by the oxidizing agent supply device 16 .
- the oxidizing agent supply device 16 has a further pressure sensor 17 which the control device 14 supplies the oxygen pressure or the air pressure at the inlet 18 of the cathode device 5 .
- the hydrogen on the side of the anode device 4 reacts with the atmospheric oxygen on the side of the cathode device 5 to form water, with a direct current flow occurring between the anode device 4 and the cathode device 5 .
- the direct current can be used to operate an electric drive motor (not shown) of motor vehicle 1 .
- the respective reaction products from the anode device 4 and the cathode device 5 are discharged.
- the anode device 4 has an anode outlet 41, via which the reaction products can be evacuated from the anode device 4, i.e. can be discharged.
- the reaction products on the part of the anode device 4 are essentially a gas mixture of steam, nitrogen and hydrogen as the main components.
- the cathode device 5 has a cathode outlet 51 via which reaction products can be evacuated from the cathode device 5, ie can be discharged.
- the reaction products on the part of the cathode device 5 are usually a gas mixture of steam, nitrogen and oxygen as the main components.
- the first water separation device 400 has a first gas inlet 401 which is fluidically coupled to the anode outlet 41 .
- the first water separation device 400 is designed to separate water from the water-containing gas mixture which escapes from the anode outlet 41 . While the separated, liquid water remains at least temporarily in the first water separation device 400, the separated gas components leave the first water separation device 400 immediately after the separation process via a first gas outlet 402.
- the separated gas components are then optionally fed via a recirculation path 20 with a fan 21 arranged therein to Returned to the input of the anode device 4 or released into the environment via a controllable first gas valve 410 .
- the liquid water separated in the first water separating device 400 can be drained from time to time via a controllable first valve device 4510 assigned to the first water separating device 400 and a first drain channel 4600 .
- the fuel cell device 2 has a second water separation device 500 which is assigned to the cathode device 5 .
- the second water separation device 500 has a second gas inlet 501 which is fluidically coupled to the cathode outlet 51 .
- the second water separation device 500 is designed to separate water from the water-containing gas mixture which escapes from the cathode outlet 51 . While the separated, liquid water remains at least temporarily in the second water separation device 500, the separated gas components leave the second water separation device 500 immediately after the separation process via a second gas outlet 502 into the environment.
- the liquid water separated in the second water separating device 500 can be discharged from time to time via a controllable second valve device 5510 assigned to the second water separating device 500 and a second discharge channel 5600 .
- only one water separation device can be provided, which is assigned either to the anode device 4 or to the cathode device 5 .
- the first water separation device 400 has a first separation device 430 for separating water from the water-containing gas mixture discharged from the anode device 4, a first container 440 for collecting the separated water, and a first antifreeze device 4500.
- the second water separation device 500 likewise has a second separation device 530 for separating water from the water-containing gas mixture discharged from the cathode device 5, a second container 540 for collecting the separated water, and a second antifreeze device 5500.
- the first separating device 430 and the second separating device 530 can be embodied as cyclone separators, for example.
- the first container 440 and the second container 540 can be designed in one piece with the first water separation device 400 and the second water separation device 500, respectively, or as separate components.
- FIGS. 3 and 4 exemplary embodiments of the first antifreeze device 450 and parts of the first water separation device 400 are shown schematically.
- the structure and mode of operation of only the first antifreeze device 450 is described below. However, all the contents of the description can be transferred in an analogous manner to the second antifreeze device 550 of the same construction.
- the basic mode of operation and the basic structure of the first antifreeze device 450 is illustrated in FIGS. 3 and 4 described. Based on the Figs. 5 to 7, concrete, constructive exemplary embodiments are then described, with the basic mode of operation and the basic structure also applying to these exemplary embodiments. Reference is first made to FIGS.
- FIG. 3 shows the first water separating device 400 in a state in which water 600 has already collected in the first collection volume 441 .
- a cavity 443 is formed in the boundary wall 442 of the first container 440 .
- an opening 445 is formed in the boundary wall 442, which is closed off from the first antifreeze device 4500 to the environment in a liquid-tight or gas-tight manner.
- the first antifreeze device 4500 can be attached to the boundary wall 442 of the first container 440 by a screw, adhesive or welded connection.
- the first antifreeze device 4500 includes the first valve device 4510, which is shown in Figs. 3 and 4 is shown purely schematically.
- the first valve device 4510 is arranged in the cavity 443 or in the opening 445 and is mounted there in a displaceable or movable or sliding manner along a displacement path (double arrow).
- the first valve device 4510 is coupled to the water in the collection volume 441 in a pressure-transmitting manner on one surface side. In the exemplary embodiment, this surface side is in direct contact with the water 600 .
- the first valve device 4510 is coupled to a restoring device 4520 of the first antifreeze device 4500 in a compressive force-transmitting manner.
- the coupling takes place by means of one or more coupling elements 4521, which are assigned to the resetting device 4520.
- the first valve device 4510 water 600 can be drained from the collection volume 441 via the first drain channel 4600, which is formed in the boundary wall 442 of the first container 440 and is fluidically coupled to the valve device 4510.
- the water 600 in the collection volume 441 is in liquid form.
- the first valve device 4510 is in a melting position along the displacement path. In the melting position, the first valve device 4510 is in a stable equilibrium of forces in the direction of the displacement path. The forces acting on opposite sides of the surface cancel each other out.
- the water 600 in the collection volume 441 can ice up, particularly when the fuel cell 3 is not operated for a long period of time. Ice has a specific volume about 9% larger than liquid water.
- Ice has a specific volume about 9% larger than liquid water.
- FIG. 4 the water in the collection volume 441 is completely frozen into ice 700 .
- the first valve device 4510 is in the freezing position along the displacement path (double arrow). In the freezing position, the first valve device 4510 is again in a stable equilibrium of forces in the direction of the displacement path. The compressive forces on opposite surface sides cancel each other out. The volume expansion due to icing of the water is complete.
- the collection volume 441 in Fig. 4 is correspondingly larger than the collection volume in Fig. 3.
- the restoring device 4520 is coupled to the valve device 4510 in a compressive force-transmitting manner via the coupling elements 4521 and is designed to exert a restoring force on the valve device 4510 directed in the direction of the melting position.
- the restoring device 4520 may be configured such that the restoring force undergoes a progression the further the valve device 4510 moves from the melting position to the freezing position. The movement of the valve device 4510 from the melting position in the direction of the freezing position thus takes place with an increase in the collection volume 441 and with an increase in the restoring force.
- the resulting water 600 takes up a smaller volume than the ice 700.
- the pressure force on the surface side of the valve device 4510 facing the collection volume 441 decreases and is now less than that of the reset device 4520 on the valve device 4510 applied restoring force. Due to this imbalance of forces, the valve device 4510 moves in the direction of the melting position (FIG. 3) until the forces are again in balance. The movement of the valve device 4510 from the freezing position in the direction of the melting position thus takes place with a reduction in the collection volume 441 and with a weakening of the restoring force.
- the first antifreeze device 4500 enables the first collection volume 441 to be adjusted as required, depending on the aggregate state of the water contained therein. If the water contained in the first collection volume 451 freezes, the first anti-freeze device 4500 causes the first collection volume 441 to increase, which means that the resulting ice can expand sufficiently in accordance with its larger specific volume, without excessive pressure forces arising, which could damage the first Water separation device 400 or the first container 440 can lead.
- the first antifreeze device 4500 is designed in such a way that the natural volumetric expansion that occurs when the water ices over is compensated by the enlargement of the first collection volume 441 to such an extent that excessive pressure forces and damage to the first water separation device 400 are avoided.
- the antifreeze device 4500 enables the collection volume 441 to be increased by approximately 9% to 16% in the event of the water icing up. So if the valve assembly 4510 in For example, when the valve assembly 4510 is in the freezing position, the collection volume is about 9% to 16% greater than when the valve assembly 4510 is in the melting position.
- valve device 4510 protrudes with a valve section 4511 into the opening 445 formed in the boundary wall 444 and with a control section 4512 to the outside beyond the boundary wall 444 .
- a plurality of seals 4513 are provided on the outer diameter of the valve section 4511, which seal the cavity 443 from the outside in a liquid-tight manner, with the ability of the valve device 4510 to be moved still being ensured.
- the valve device 4510 has a limiting plate 4514 which extends radially (transversely to the displacement direction of the valve device 4510) outwards.
- the valve device 4510 remains with its control section 4512 and the limiter plate 4514 outside of the container 440 and in the melting position with the limiter plate 4514 abuts the boundary wall 444 .
- a valve plate 4515 with a flow channel S is arranged in the valve section 4511, a valve seat being formed on a side of the valve plate 4515 facing away from the collecting volume 441, at the edge of the flow channel S.
- a movable valve body 4516 is also arranged in the valve section 4511 . In the closed state of the valve device 4510, this rests against the valve seat 4515 in a liquid-tight manner. When the valve device 4510 is open, the valve body 4516 lifts off the valve seat 4515 and releases the flow channel S, so that water can flow through the flow channel S from the collection volume 441 . In the open state, the flow channel S is fluidically connected to the drain channel 4600, which in Figs. 5-7 runs in sections on the radial outer edge of the valve device 4510 and in sections in the boundary wall 444 of the container 440, so that water flows via the flow channel S and the drain channel 4600 can be discharged from the container 440.
- the valve device 4510 is designed as an electromagnetic valve.
- An electromagnetic actuator is provided in the control section 4512, which has an armature 4517 connected to the valve body 4516, a coil winding 4519a surrounding the armature 4517, and a pole piece 4518. Current/voltage can be applied to the coil winding 4519a by means of the power supply 4519b in order to open and close the valve device 4510 in this way.
- the valve device 4510 is slidably mounted at its plate-shaped section 4510a on two screw bolts 4523 which are fastened to the container wall 444.
- the restoring device 4520 has the two or more screw bolts 4523, which are fastened to the container wall 444, and two mechanical springs as coupling elements 4521, which are slipped over the shanks of the screw bolts 4523.
- the mechanical springs 4521 can be in the form of helical springs or plate springs made of metal or plastic.
- the valve device 4510 is slidably mounted with its limiting plate 4514 on two or more bolts 4523 .
- the limiting plate 4514 is provided with several through-holes, through which the shanks of the screw bolts 4523 pass.
- the mechanical springs 4521 are supported at one of their ends on the heads of the bolts 4523 and at their opposite ends on the limit plate 4514 of the valve body 4510.
- Valve device 4510 is thus coupled elastically and in a force-transmitting manner to restoring device 4520, with the restoring force increasing when valve device 4510 moves in the direction of the freezing position (mechanical springs are compressed and thus tensioned) and reduced in the opposite direction of movement (mechanical springs are relaxed).
- the heads of the bolts 4523 act as mechanical
- the water in the collection volume 441 is in liquid form.
- the valve assembly 4510 is in the melt position.
- the mechanical springs 4521 are relaxed or only slightly compressed. If the water 600 freezes in the collection volume, the volumetric expansion causes the valve device 4510 to be displaced in the direction of the freezing position, increasing the collection volume 441.
- the valve device 4510 slides under compression of the mechanical springs 4521 in the direction of the heads of the screw bolts 4523 6, the water 600 in the collection volume 441 is completely frozen.
- Valve assembly 4510 is in the freeze position.
- the mechanical springs 4521 are highly compressed and generate a restoring force urging the valve assembly 4510 to the melt position. As soon as the water in the collection volume 441 melts again with a reduction in volume, the mechanical springs 4521 force the valve device 4510 back into the melting position.
- FIG. 7 differs from the embodiment of FIGS. 5 and 6 only in that two sleeve-shaped elastomers are provided as coupling elements 4521, which also function as springs. Otherwise, the mode of operation is analogous to the exemplary embodiment in FIGS. 5 and 6!
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- Engineering & Computer Science (AREA)
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- Sustainable Development (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112022004967.7T DE112022004967A5 (de) | 2021-10-15 | 2022-10-11 | Wasserabscheidevorrichtung für eine Brennstoffzelle mit beweglicher Ventileinrichtung |
| JP2024522289A JP2024537363A (ja) | 2021-10-15 | 2022-10-11 | 可動の弁装置を備えた燃料電池用の水分離装置 |
| CN202280069452.8A CN118120083A (zh) | 2021-10-15 | 2022-10-11 | 用于燃料电池的具有可移动的阀门装置的水分离设备 |
| US18/700,880 US20240405233A1 (en) | 2021-10-15 | 2022-10-11 | Water Separation Device for a Fuel Cell, Comprising a Movable Valve Mechanism |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021211698.1A DE102021211698A1 (de) | 2021-10-15 | 2021-10-15 | Wasserabscheidevorrichtung für eine Brennstoffzelle mit beweglicher Ventileinrichtung |
| DE102021211698.1 | 2021-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023062013A1 true WO2023062013A1 (de) | 2023-04-20 |
Family
ID=84357975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2022/078263 Ceased WO2023062013A1 (de) | 2021-10-15 | 2022-10-11 | Wasserabscheidevorrichtung für eine brennstoffzelle mit beweglicher ventileinrichtung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240405233A1 (de) |
| JP (1) | JP2024537363A (de) |
| CN (1) | CN118120083A (de) |
| DE (2) | DE102021211698A1 (de) |
| WO (1) | WO2023062013A1 (de) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016208600A1 (de) * | 2016-05-19 | 2017-11-23 | Robert Bosch Gmbh | Absperrventil, SCR-System und Verfahren zur Leckagedetektion und/oder Dosiermengenabweichungserkennung |
| US20180205100A1 (en) * | 2017-01-18 | 2018-07-19 | Toyota Jidosha Kabushiki Kaisha | Fuel cell system |
| DE102018110661A1 (de) * | 2017-05-08 | 2018-11-08 | Ford Global Technologies, Llc | Konkaver ausstoßablauf für kraftstoffzellen |
| DE102019113605A1 (de) * | 2018-05-25 | 2019-11-28 | Aisin Seiki Kabushiki Kaisha | Gas- und Wasserabgabeeinheit für ein Brennstoffzellensystem |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5840134Y2 (ja) * | 1978-01-18 | 1983-09-09 | 日本鋼管継手株式会社 | 水道管の凍結破壊防止器 |
| DE19958829C1 (de) | 1999-11-30 | 2001-08-02 | Mannesmann Ag | Brennstoffzellensystem mit einer Vorrichtung zum Zuleiten von Brennstoff |
| JP2004362807A (ja) * | 2003-06-02 | 2004-12-24 | Nissan Motor Co Ltd | 燃料電池システム |
| JP2005327665A (ja) * | 2004-05-17 | 2005-11-24 | Toyota Motor Corp | 気液分離システム |
| DE102006050808A1 (de) | 2006-10-27 | 2008-04-30 | Robert Bosch Gmbh | Tank zur Bevorratung eines Reduktionsmittels |
-
2021
- 2021-10-15 DE DE102021211698.1A patent/DE102021211698A1/de not_active Withdrawn
-
2022
- 2022-10-11 WO PCT/EP2022/078263 patent/WO2023062013A1/de not_active Ceased
- 2022-10-11 JP JP2024522289A patent/JP2024537363A/ja active Pending
- 2022-10-11 CN CN202280069452.8A patent/CN118120083A/zh active Pending
- 2022-10-11 DE DE112022004967.7T patent/DE112022004967A5/de active Pending
- 2022-10-11 US US18/700,880 patent/US20240405233A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016208600A1 (de) * | 2016-05-19 | 2017-11-23 | Robert Bosch Gmbh | Absperrventil, SCR-System und Verfahren zur Leckagedetektion und/oder Dosiermengenabweichungserkennung |
| US20180205100A1 (en) * | 2017-01-18 | 2018-07-19 | Toyota Jidosha Kabushiki Kaisha | Fuel cell system |
| DE102018110661A1 (de) * | 2017-05-08 | 2018-11-08 | Ford Global Technologies, Llc | Konkaver ausstoßablauf für kraftstoffzellen |
| DE102019113605A1 (de) * | 2018-05-25 | 2019-11-28 | Aisin Seiki Kabushiki Kaisha | Gas- und Wasserabgabeeinheit für ein Brennstoffzellensystem |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112022004967A5 (de) | 2024-08-01 |
| US20240405233A1 (en) | 2024-12-05 |
| DE102021211698A1 (de) | 2023-04-20 |
| CN118120083A (zh) | 2024-05-31 |
| JP2024537363A (ja) | 2024-10-10 |
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