METHOD AND APPARATUS FOR COLD TEMPERATURE OPERATION OF FUEL CELLS UTILIZING HYDRIDES HAVING DIFFERENT HEAT CAPACITIES
    54.
    发明公开
    METHOD AND APPARATUS FOR COLD TEMPERATURE OPERATION OF FUEL CELLS UTILIZING HYDRIDES HAVING DIFFERENT HEAT CAPACITIES 审中-公开
    方法和一种用于操作BRENNSTOFFZELLENBEI寒冷的气温使用具有不同WÄRMKAPAZITÄTEN氢化物

    公开(公告)号:EP1374326A4

    公开(公告)日:2008-03-26

    申请号:EP02709809

    申请日:2002-03-06

    Applicant: MOTOROLA INC

    Abstract: An apparatus and method for temperature regulation of a fuel cell using differential heat capacity of the fuel storage media is disclosed. The method of regulating the temperature involves measuring the temperature of one or more fuel cells, comparing the temperature against target values, selecting a control method from a set of available control methods based on the result of comparison and using that control method to initiate and control a regulation cycle, and actuating a flow control means using the selected control method to alter the flow of fuel between one or more fuel storage containers, each containing fuel storage media which exhibit different enthalpies of formation and dissociation. The regulation process starts with measuring temperature (110) of a fuel cell system (100). The measured temperature is then compared (120) to a predetermined set of ideal target values designed to provide peak fuel cell performance. Following the comparison step, a control method (130) is selected from a list of available control methods. The control method has the necessary parameters and logic to define an fuel flow initiation process (140) which in turn actuates a flow control means (150). Actuation of the flow control means changes the temperature of the one or more fuel cells and alters its operating parameters (160).

    METHOD AND APPARATUS FOR THERMAL MANAGEMENT OF FUEL CELL SYSTEMS
    55.
    发明公开
    METHOD AND APPARATUS FOR THERMAL MANAGEMENT OF FUEL CELL SYSTEMS 审中-公开
    方法和设备的散热管理燃料电池系统

    公开(公告)号:EP1275167A4

    公开(公告)日:2006-12-27

    申请号:EP01922780

    申请日:2001-03-28

    Applicant: MOTOROLA INC

    Abstract: The fuel cells (110) consists of one or more fuel cells (110), each having a major surface (140), and disposed next to each other in a side-by-side adjacent arrangement and a fuel storage container (120) having an exterior wall (150). The fuel cells (110) are positioned such that distance between the major surfaces (140) and the fuel storage container wall (150) along a direction normal to the major surfaces is substantially the same. In addition, one or more of the fuel cells are in thermal contact with the fuel storage container such that cell waste heat is transferred to the fuel storage container. During typical operation, a change in an operational parameter of the fuel cell system such as power output causes a change in the amount of waste heat generated in the fuel cell and the waste heat is transferred to the fuel storage container.

    ADAPTABLE MOLD BASE
    56.
    发明公开
    ADAPTABLE MOLD BASE 失效
    可调模架

    公开(公告)号:EP0784534A4

    公开(公告)日:1998-07-01

    申请号:EP95933967

    申请日:1995-09-27

    Applicant: MOTOROLA INC

    CPC classification number: B29C45/2675 B29C45/2673 B29C2033/0005

    Abstract: An adaptable mold assembly (10) consists of two mold bases (100, 102). One or both of the mold bases has at least one interchangeable portion (104, 105) removably mounted on the mold base, whose function is to actuate in a direction different from the draw direction. The interchangeable portion is typically used to facilitate the removal of the molded part from the mold, and often functions as a mold slide or pull. The ability to interchange and reconfigure the mold base reduces tooling costs and adds design flexibility to the tool. In another embodiment of the invention, the function of the interchangeable portion (106) is to provide process monitoring, process control or process optimization.

Patent Agency Ranking