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    CONTROL METHOD AND SYSTEM OF A FUEL CELL ELECTRIC VEHICLE STACK
    23.
    发明申请
    CONTROL METHOD AND SYSTEM OF A FUEL CELL ELECTRIC VEHICLE STACK 有权

    公开(公告)号：US20220402363A1

    公开(公告)日：2022-12-22

    申请号：US17638280

    申请日：2020-10-09

    申请人： Ceres Intellectual Property Company Limited

    发明人： Lei Sun ,  Chao Yu ,  Youpeng Chen ,  Gangyi Hu

    IPC分类号： B60L3/00 ,  B60L58/30 ,  H01M8/04537 ,  H01M8/04664 ,  H01M8/04746 ,  H01M8/04955

    摘要： A control method and system of a fuel cell electric vehicle stack. The control method comprises obtaining insulation resistance of the stack, comprising at least two sub-stacks connected in parallel; and disconnecting a sub-stack with insulation failure from a DC bus and then causing the stack to enter a failure mode when it is determined that the insulation resistance of the stack is smaller than a first preset threshold. The stack is determined to have an insulation failure when it is determined that the insulation resistance of the stack is smaller than the first preset threshold. The sub-stack with the insulation failure is located and disconnected the sub-stack with insulation failure from a DC bus, and the stack is then caused to run in a failure mode to perform failure protection, avoid deterioration of the insulation failure and burnout of the stack and improve the safety performance of the stack.

    STEAM GENERATOR FOR FUEL CELL SYSTEM
    26.
    发明申请
    STEAM GENERATOR FOR FUEL CELL SYSTEM 有权

    公开(公告)号：US20220316698A1

    公开(公告)日：2022-10-06

    申请号：US17639290

    申请日：2020-08-26

    申请人： Ceres Intellectual Property Company Limited

    发明人： Andrew BALLARD ,  Colin BENNETT ,  Joshua RYLEY ,  Martin SCHMIDT ,  Oliver POSTLETHWAITE ,  Paul BARNARD ,  Simone DOZIO ,  Tomasz DOMANSKI

    IPC分类号： F22B27/16 ,  H01M8/04007 ,  H01M8/0637 ,  F22B1/18 ,  F22B37/22

    摘要： A steam generator for a fuel cell system having a heat exchanger (34) with at least one internal heat exchange surface, a water inflow pipe (46), a dripper head (52) with a flow passageway fluidly connected to the water inflow pipe (46). The dripper head (52) extends inside the heat exchanger (52) above the heat exchange surface for feeding water down onto the heat exchange surface for conversion into steam. The dripper head (52) has outlet holes (56) spaced along the flow passageway and between adjacent outlet (holes 56) the dripper head has a stepped profile on at least its underside to prevent droplets from adjacent holes coalescing. A fuel inflow pipe can have a section mounted coaxially to a part of the water inflow pipe (46). The fuel inflow pipe's section can surround the water inflow pipe's part. In a fuel cell system with a steam generator, the steam generator can include the fuel inflow pipe and a combined steam and fuel outlet and a reformer directly or indirectly connected downstream of the steam generator.

    ALIGNMENT APPARATUS AND METHODS OF ALIGNMENT
    29.
    发明申请
    ALIGNMENT APPARATUS AND METHODS OF ALIGNMENT 有权

    公开(公告)号：US20210119241A1

    公开(公告)日：2021-04-22

    申请号：US17076597

    申请日：2020-10-21

    申请人： Ceres Intellectual Property Company Limited

    发明人： Tomasz Domanski

    IPC分类号： H01M8/2465

    摘要： An alignment dowel comprises a body extending along a longitudinal axis, the body comprising a plurality of resilient vanes that extend generally perpendicular to the longitudinal axis, and an actuator portion. The stack has openings of a predetermined diameter. The vanes are arranged around the longitudinal axis so as to extend along the axis and project radially outwards to define an outer diameter of the body. The actuator portion is operable to move the vanes between a collapsed configuration in which the outer diameter is smaller than the predetermined diameter, and an expanded configuration in which the outer diameter of the body is greater than in the collapsed configuration. A stack assembly jig, comprises a tool base on which a stack of components can be positioned. The tool base has guide holes that are no smaller than the predetermined diameter and are positioned to correspond to the position of the openings in the stack. A base plate carries an array of alignment dowels arranged to correspond to the positions of the guide holes. The base plate is moveable relative to the tool base such that the alignment dowels can project through the guide holes and into the component openings. The actuators are operable to align the components in the stack. A method for aligning components of a cell stack using an alignment dowel, comprises arranging cells adjacent one another in a stack, wherein the cells have internal alignment features, wherein each alignment feature includes an engaging surface with which the alignment dowel is configured to engage and disengage when located within said alignment feature; and locating the alignment dowel in the alignment features in the collapsed configuration and operating the actuator to move the alignment dowel to the expanded configuration to align the cells.