Thermal Managing End Plate For Fuel Cell Stack Assembly

    公开(公告)号:US20210066730A1

    公开(公告)日:2021-03-04

    申请号:US17048469

    申请日:2019-04-16

    摘要: Fuel cell stack assemblies (100) have a positive end plate (200) and a negative end plate (300), The end plates (200, 300) can be formed from a central structural element (220, 320) with an insulating end plate cover (210, 310) and an insulating end plate manifold (230, 330). A plurality of cathode plates (150) and a plurality of fuel cell assemblies (250) can be arranged in a stack having an alternating pattern of cathode plates (150) and fuel cell assemblies (250), with the positive end plate (200) and the negative end plate (300) provided on either end of the stack of cathode plates and fuel cell assemblies.

    Anode bleed control in a fuel cell stack

    公开(公告)号:US10903512B2

    公开(公告)日:2021-01-26

    申请号:US16276441

    申请日:2019-02-14

    摘要: An electrochemical fuel cell assembly comprises a fuel cell stack having a fuel delivery inlet and a fuel delivery outlet. The fuel cell stack further includes a number of fuel cells each having a membrane-electrode assembly and a fluid flow path coupled between the fuel delivery inlet and the fuel delivery outlet for delivery of fuel to the membrane electrode assembly. A fuel delivery conduit is coupled to the fuel delivery inlet for 10 delivery of fluid fuel to the stack. A bleed conduit is coupled to the fuel delivery outlet for venting fluid out of the stack. A variable orifice flow control device coupled to the bleed conduit configured to dynamically vary an amount of fluid from the fuel delivery outlet passing into the bleed conduit as a function of one or more of the control parameters: (i) measured fuel concentration; (ii) measured humidity; (iii) cell voltages of fuel cells in the 15 stack; (iv) impedance of fuel cells in the stack; (v) resistance of fuel cells in the stack. The variable orifice flow control device may be coupled to a recirculation conduit and may be configured to dynamically vary a proportion of fluid from the fuel delivery outlet passing into the bleed conduit as a function of the control parameters.

    Authentication of replaceable fuel cartridge

    公开(公告)号:US10658689B2

    公开(公告)日:2020-05-19

    申请号:US14380678

    申请日:2013-01-18

    摘要: The within disclosure provides devices, methods and systems for use in authenticating hydrogen fuel tanks or cartridges utilizing unique identifier elements, physical conformations and combinations of same. A user may place a hydrogen cartridge with a hollow body and a shaped body and/or dispensing end in a carriage having a fluid communication means and said fluid communication means matching said shaped body and/or dispensing end, whereby a tank mating to the carriage is limited to matching shaped cartridge and carriage.

    FLUID FLOW PLATE FOR A FUEL CELL
    215.
    发明申请

    公开(公告)号:US20190326614A1

    公开(公告)日:2019-10-24

    申请号:US16504156

    申请日:2019-07-05

    摘要: The invention relates to bipolar plates for electrochemical fuel cell assemblies, and in particular to configurations of bipolar plates allowing for multiple fluid flow channels for the passage of anode, cathode and coolant fluids. Embodiments disclosed include a bipolar plate (10) for an electrochemical fuel cell assembly, comprising: a first plurality of fluid flow channels (13) extending across a first face of the bipolar plate between first inlet and outlet ports (18a, 18b) at opposing ends of the bipolar plate; a second plurality of fluid flow channels (22) extending across a second opposing face of the bipolar plate between second inlet and outlet ports (21a, 21b) at opposing ends of the bipolar plate; and a third plurality of fluid flow channels (14) extending between third inlet and outlet ports (19a, 19b) at opposing ends of the bipolar plate, the third plurality of fluid flow channels provided between first and second corrugated plates (11, 12) forming the first and second opposing faces of the bipolar plate, wherein the first, second and third fluid flow channels are coplanar.

    Fluid flow plate for a fuel cell
    216.
    发明授权

    公开(公告)号:US10403909B2

    公开(公告)日:2019-09-03

    申请号:US14655751

    申请日:2013-12-18

    摘要: The invention relates to bipolar plates for electrochemical fuel cell assemblies, and in particular to configurations of bipolar plates allowing for multiple fluid flow channels for the passage of anode, cathode and coolant fluids. Embodiments disclosed include a bipolar plate (10) for an electrochemical fuel cell assembly, comprising: a first plurality of fluid flow channels (13) extending across a first face of the bipolar plate between first inlet and outlet ports (18a, 18b) at opposing ends of the bipolar plate; a second plurality of fluid flow channels (22) extending across a second opposing face of the bipolar plate between second inlet and outlet ports (21a, 21b) at opposing ends of the bipolar plate; and a third plurality of fluid flow channels (14) extending between third inlet and outlet ports (19a, 19b) at opposing ends of the bipolar plate, the third plurality of fluid flow channels provided between first and second corrugated plates (11, 12) forming the first and second opposing faces of the bipolar plate, wherein the first, second and third fluid flow channels are coplanar.

    FLUID FLOW PLATE FOR A FUEL CELL
    217.
    发明申请

    公开(公告)号:US20190198892A1

    公开(公告)日:2019-06-27

    申请号:US16287231

    申请日:2019-02-27

    摘要: A fluid flow plate having first and second fluid flow channels on a fluid flow plate with an active area of fluid flow fields having one or more arrays of fluid transfer points (301, 302, 303) disposed along an edge of the flow field for communicating fluid into or out of flow channels. A first and second distribution gallery (15, 16, 21)with peripheral edge portions bounded by the arrays including at least one pair of inlets in external edges of the fluid flow plate and wherein the first fluid distribution gallery is shaped such that the combined lengths of the first-gallery second peripheral edge portions are longer than the first-gallery first peripheral edge portion, and wherein the internal edges of the flow plate comprise edges of a hole, aperture, or port passing through the flow plate, and the external edges of the flow plate comprise an outer peripheral edge of the plate. The edges each may comprise a castellated structure (31, 32, 34).

    Performance balancing elastomeric hydrogen reactor

    公开(公告)号:US10329148B2

    公开(公告)日:2019-06-25

    申请号:US15417098

    申请日:2017-01-26

    IPC分类号: C01B3/06 B01J7/02

    摘要: A hydrogen producing reactor having a pellet core within a containment vessel. The vessel having an exit nozzle surrounding the pellet. Optionally, one or more elastomeric winding may be placed around the elastomeric or compressing material of the containment vessel; and, a water line to deliver fluid to the pellet. Whereby the containment compresses around the fuel pellet as it is used. Hydrogen and other products produced by the reactor within a cartridge is filtered with a clog-less filter and substantially pure hydrogen is output.

    Fuel source, fuel cell system and associated method

    公开(公告)号:US10283790B2

    公开(公告)日:2019-05-07

    申请号:US15116799

    申请日:2015-02-11

    发明人: David Edgar

    摘要: A fuel source (100), a fluid gauge adapter (300), a fuel cell system (200) and an associated method. The fuel source (100) has a gauge (104) comprising an electronic multi-stable display (106). The fuel cell system (200) and method relate to receiving fuel from the fuel source (100), determining (212) a fuel consumption of the fuel cell system (200), calculating (214) a substance level of the fuel source in accordance with the fuel consumption and updating (216) an electronic multi-stable display of the fluid gauge of the fuel source in accordance with the substance level.