FUEL CELL STACK
    1.
    发明申请

    公开(公告)号:US20250055002A1

    公开(公告)日:2025-02-13

    申请号:US18789811

    申请日:2024-07-31

    Abstract: A fuel cell stack includes stacked single cells. The single cells each include a power generation portion and a pair of a first separator and a second separator. The first separator includes first passages. The first passages each include first reversal portions and first general portions. The second separator includes second passages. The second passages each include second reversal portions and second general portions. The first reversal portions of the first passages each extend to increase a flow resistance of a cooling medium flowing through a part of a cooling medium flow region that corresponds to the first reversal portion. The second reversal portions of the second passages each extend to increase the flow resistance of the cooling medium flowing through a part of the cooling medium flow region that corresponds to the second reversal portion.

    Composite charging system and method

    公开(公告)号:US12224615B2

    公开(公告)日:2025-02-11

    申请号:US18011790

    申请日:2021-11-19

    Abstract: The present invention relates to a composite charging system and method capable of producing charging power for an electric vehicle by utilizing hydrogen energy supplied to a hydrogen vehicle, and compositely connecting hydrogen energy with a power system to efficiently perform charging of the electric vehicle, and more flexibly coping with the use of energy.
    The composite charging system according to the present invention comprises: a hydrogen charger which charges hydrogen into a vehicle; a hydrogen power supply system which generates and supplies power on the basis of hydrogen; a system power supply system which supplies power from a power system; an electric charger which charges the electric vehicle; and a battery power supply system which stores power supplied from the hydrogen power supply system and the system power supply system, and supplies the stored power to the electric charger.

    Installation and method for supplying a fuel cell with hydrogen

    公开(公告)号:US12224463B2

    公开(公告)日:2025-02-11

    申请号:US18413932

    申请日:2024-01-16

    Abstract: An installation for supplying a fuel cell with hydrogen comprising a fuel cell, a liquefied hydrogen storage facility and a supply circuit that includes at least one upstream end connected to the storage facility and one downstream end connected to a fuel inlet of the fuel cell, the supply circuit including at least one system for heating hydrogen by heat exchange with a heat source and a set of control valves, the liquefied hydrogen storage facility being configured to keep the liquefied hydrogen in equilibrium with a gaseous phase at a determined nominal storage pressure of between 1.5 and 4.5 bar, the supply circuit including a buffer tank for pressurized gaseous hydrogen which is configured to store the hydrogen withdrawn from the storage facility and heated by the heating system, the set of valves being configured to accumulate pressurized gas in the buffer tank at a determined storage pressure of between 4 and 100 bar, for example between 6 and 8 bar.

    Hydrogen powered auxiliary power unit

    公开(公告)号:US12212027B2

    公开(公告)日:2025-01-28

    申请号:US17710648

    申请日:2022-03-31

    Abstract: A system includes a reversible proton exchange membrane (PEM) fuel cell stack configured to receive oxygen and to controllably receive water and hydrogen, an electrical bus for coupling to a vehicle engine to receive electricity, the electrical bus coupled to the reversible fuel cell stack to controllably receive electricity from the fuel cell stack and provide electricity to the reversible fuel cell stack, and a hydrogen storage unit coupled to controllably receive hydrogen from the fuel cell stack, provide hydrogen to the fuel cell stack, and to provide hydrogen to a hydrogen gas powered electricity generator unit to couple to the electrical bus.

    Fuel supply arrangement for a fuel cell system and fuel cell system

    公开(公告)号:US12212024B2

    公开(公告)日:2025-01-28

    申请号:US16468670

    申请日:2017-12-14

    Inventor: Quirin Meder

    Abstract: A fuel supply arrangement with a fuel supply duct that supplies fuel from a fuel storage reservoir to a fuel cell. The fuel supply duct is between a fuel provision port and a fuel supply port, and a fuel circulation duct is connected to the fuel supply duct to return unconsumed fuel from the fuel cell to the fuel supply duct. A jet nozzle in the fuel supply duct uses negative flow pressure, draws unconsumed fuel from the fuel circulation duct and mixes it into the fuel supply duct. A bypass duct connected to the fuel supply duct bypasses the jet nozzle. A pressure monitoring device monitors pressure in the fuel supply duct and outputs a signal when the pressure drops below a specific value. An activation device activates the bypass duct in response to the signal to bypass the jet nozzle to supply fuel to the fuel cell.

    METHOD OF MANUFACTURING HYDROGEN FUEL CELL HOSES AND RELATED PARTS

    公开(公告)号:US20250023070A1

    公开(公告)日:2025-01-16

    申请号:US18897348

    申请日:2024-09-26

    Abstract: A method of manufacturing a hydrogen fuel cell hose and component parts is disclosed herein, including blending a formaldehyde-based, semi-crystalline engineering thermoplastic with graphene, wherein the graphene has a thickness of less than about 3.2 nm, a particle size of between about 50 nm and about 10 μm, and contains greater than about 95% carbon, exfoliating the graphene into plates, wherein the graphene plates having substantially no carboxylic acid, alcohols, ketones, aldehydes, or hydroxyl groups on the graphene plate surface or graphene plate edges, and aligning the graphene plates into perpendicular alignment, such that the graphene plates provide a barrier to migration of oxygen, nitrogen, moisture, or water vapor molecules.

    SUBSEA HYDROGEN STORAGE SYSTEM
    9.
    发明申请

    公开(公告)号:US20250020284A1

    公开(公告)日:2025-01-16

    申请号:US18715232

    申请日:2022-12-01

    Abstract: A subsea unit suitable for storing hydrogen gas underwater comprises a weighting base and an array of interconnecting storage tanks on the base. The base may be cast from concrete on a deck of a vessel from which the unit is subsequently launched into water. A protective structure fixed to the base covers the array of tanks. A restraint system, comprising a series of strap restraints curving around the top of each tank, secures the tanks to the base against buoyant upthrust. The restraints are attached to elongate tensile members extending upwardly from the base, disposed on opposite sides of the underlying tank. The arrangement transfers loads efficiently from each tank to the base on load paths that bypass the other tanks.

    METHOD OF OPERATING A FUEL CELL SYSTEM IN FUEL CELL MODE

    公开(公告)号:US20250006963A1

    公开(公告)日:2025-01-02

    申请号:US18577668

    申请日:2022-03-17

    Abstract: The invention concerns a method of operating a fuel cell system (1) in fuel cell mode, the fuel cell system (1) comprising at least one fuel cell (2) comprising an anode (2a), a cathode (2b) and an electrolyte (2c) provided between the anode (2a) and the cathode (2b), the fuel cell (2) being arranged for an internal reformation of hydrocarbon compounds inside the anode (2a), an anode exhaust conduit (4) connecting the anode outlet (2d) and a fuel conduit (6) and comprising a methanation unit (3a), a water-gas shift reactor (3b), and a water vapor condenser or water removal unit (12), the anode exhaust conduit (4) or the fuel conduit (6) comprising a carbon dioxide separation unit (11), and the fuel conduit (6) connecting a fuel cell system inlet (7) and an anode inlet (2e), the method comprising the steps of a) feeding feed gas into the fuel conduit (6) via the fuel cell system inlet (7), the feed gas comprising hydrocarbon compounds, b) controlling the methanation unit (3a) to produce methane and controlling the water gas shift reactor (3b) to produce hydrogen so that in a feed gas mixture supplied to the anode inlet (2e) a molar ratio of hydrogen to carbon at a selected operation temperature of the fuel cell (2) prevents the formation of solid carbon, wherein the molar ratio of oxygen to carbon in the feed gas mixture supplied to the anode inlet is smaller than 1, preferably smaller than 0.1, c) wherein carbon dioxide is separated from an anode exhaust or the feed gas mixture in the carbon dioxide separation unit (11), wherein water is not added to the feed gas or the feed gas mixture supplied to the anode inlet (2e), and wherein water vapor contained in the anode exhaust is separated in a water vapor condenser or water removal unit (12).

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