Thermal enclosure
    1.
    发明授权

    公开(公告)号:US11549635B2

    公开(公告)日:2023-01-10

    申请号:US15632778

    申请日:2017-06-26

    摘要: A thermal insulation device includes a first plate, a second plate formed to nest adjacent the first plate with a gap between the first and second plates, a porous material disposed between the plates, and a sealing layer disposed between the first and second plates such that the porous material is sealed from ambient at a pressure less than ambient. Multiple such sets of plates may be used to form an enclosure for a device that thermally insulates the device from ambient.

    FUEL CELL UNITS HAVING ANGLED OFFSET FLOW CHANNELS

    公开(公告)号:US20210359323A1

    公开(公告)日:2021-11-18

    申请号:US17390447

    申请日:2021-07-30

    摘要: The present disclosure provides fuel cell units formed from a plurality of flow plate assemblies disposed in a stack configuration, with adjacent flow plate assemblies in the stack configuration disposed at an offset angle relative to each other. Fuel cell stacks can be formed from a plurality of the fuel cell units placed into a stack aligned with each other with no offset. The present disclosure also provides for methods of forming the fuel cell units, fuel cell stacks, and fuel cell systems containing the former.

    AERIAL DRONE
    5.
    发明申请

    公开(公告)号:US20210323686A1

    公开(公告)日:2021-10-21

    申请号:US17174208

    申请日:2021-02-11

    IPC分类号: B64D27/24 B64C39/02

    摘要: The disclosure relates to an unmanned aerial vehicle, wherein a fuel cell system component provides a structural component of the vehicle. In some instances propulsion modules affixed to wings are oriented so as to provide airflow to plates of a fuel cell via air inlets for each fuel cell provided at the forward surface of each wing, a fuel cell system component forming a portion of the body and wherein the air inlets are unblocked during flight, each propulsion module is configured to provide air as an oxidant to a fuel cell via the air inlets.

    Fuel cell units having angled offset flow channels

    公开(公告)号:US11101480B2

    公开(公告)日:2021-08-24

    申请号:US16637939

    申请日:2018-08-03

    摘要: The present disclosure provides fuel cell units formed from a plurality of flow plate assemblies disposed in a stack configuration, with adjacent flow plate assemblies in the stack configuration disposed at an offset angle relative to each other. Fuel cell stacks can be formed from a plurality of the fuel cell units placed into a stack aligned with each other with no offset. The present disclosure also provides for methods of forming the fuel cell units, fuel cell stacks, and fuel cell systems containing the former.

    COOLING PLATES FOR FUEL CELLS
    7.
    发明申请

    公开(公告)号:US20210218038A1

    公开(公告)日:2021-07-15

    申请号:US17048333

    申请日:2019-04-16

    摘要: Separator plates (108; 300; 400; 410) for fuel cell assemblies have a first edge (110, 310) and a second, opposing edge (111, 311). The fuel cell separator plates define a series of airflow channels (112, 113, 312, 313, 401, 411) extending longitudinally between the first and second edges. The airflow channels can be non-linear airflow channels formed from a linked series of bumps (320) opposite to corresponding recesses (321) in the facing channel walls. The linked series of bumps and recesses can run the entire channel length. The linked series of bumps and recesses can be formed as a sinusoidal wave having an amplitude and a frequency.

    Apparatus for Determining Reactant Purity

    公开(公告)号:US20210066735A1

    公开(公告)日:2021-03-04

    申请号:US17098223

    申请日:2020-11-13

    摘要: An apparatus (10) configured to determine reactant purity comprising: a first fuel cell (11) configured to generate electrical current from the electrochemical reaction between two reactants, having a first reactant inlet (13) configured to receive a test reactant comprising one of the two reactants from a first reactant source (7, 5, 16); a second fuel cell (12) configured to generate electrical current from the electrochemical reaction between the two reactants, having a second reactant inlet (14) configured to receive the test reactant from a second reactant source (5); a controller (20) configured to apply an electrical load to each fuel cell and determine an electrical output difference, ODt, between an electrical output of the first fuel cell (11) and an electrical output of the second fuel cell (12), and determine a difference between a predicted output difference and the determined electrical output difference, ODt, the predicted output difference determined based on a historical output of difference and a historical rate of change in said output difference determined at an earlier time, said controller (20) configured to provide a purity output indicative of the test reactant purity at least based on the difference between the predicted and determined output difference.

    Coolant injection controller
    10.
    发明授权

    公开(公告)号:US10923738B2

    公开(公告)日:2021-02-16

    申请号:US15529974

    申请日:2015-11-26

    摘要: A coolant injection controller for a fuel cell system, the coolant injection controller configured to actively control the flow of a coolant to a fuel cell assembly for cooling and/or hydrating the fuel cell assembly in response to a measure of fuel cell assembly performance, wherein the coolant injection controller is configured to provide for a first mode of operation if the measure of fuel cell assembly performance is below a predetermined threshold and a second mode of operation if the measure of fuel cell assembly performance is above the predetermined threshold, the first and second modes having different coolant injection profiles and wherein, in the first mode of operation, the coolant injection profile provides for control of the flow of coolant by alternating between at least two different injection flow rates.