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    Method and device for limiting crossover in fuel cell systems
    1.
    发明申请
    Method and device for limiting crossover in fuel cell systems 有权
    用于限制燃料电池系统中交叉的方法和装置

    公开(公告)号：US20040062957A1

    公开(公告)日：2004-04-01

    申请号：US10256892

    申请日：2002-09-28

    Applicant: MOTOROLA, INC.

    Inventor： Ronald James Kelley ,  Steven Duane Pratt ,  Sivakumar Muthuswamy ,  Robert Pennisi

    IPC: H01M008/04

    CPC classification number: H01M8/04261 ,  H01M8/04194 ,  H01M8/04197 ,  H01M8/04365 ,  H01M8/04388 ,  H01M8/04798 ,  H01M8/1011 ,  H01M2008/1095 ,  Y02E60/50 ,  Y02E60/523

    Abstract: A method of and fuel cell system for limiting an amount of a fuel crossing over a membrane in a fuel cell, the method including determining an appropriate molecular ratio of the fuel and water for a fuel-water mixture 503; and controlling an amount of the fuel-water mixture that is available to an anode side of the membrane 507 in the fuel cell according to an amount of the fuel that will be electro-oxidized by the fuel cell. The fuel cell system includes a fuel cell membrane 103 having an anode layer 107, a cathode layer 109, and an electrolyte layer 111 where the cathode layer is exposed to an oxygen source, and a fuel delivery system 105 including a fuel chamber 119 disposed around and proximate to the anode layer at a side opposite to the electrolyte layer, the fuel delivery system implementing the method above.

    Abstract translation: 一种用于限制在燃料电池中的膜上交叉的燃料的量的燃料电池系统的方法和方法，所述方法包括确定用于燃料 - 水混合物503的燃料和水的适当分子比; 并且根据将被燃料电池电氧化的燃料的量，控制在燃料电池中的膜507的阳极侧可用的燃料 - 水混合物的量。 燃料电池系统包括燃料电池膜103，其具有阳极层107，阴极层109和阴极层暴露于氧源的电解质层111，以及燃料输送系统105，其包括设置在燃料室周围的燃料室119 并且在与电解质层相对的一侧靠近阳极层，实现上述方法的燃料输送系统。

    Electronic device having two-sided keypad and method of forming same
    2.
    发明申请
    Electronic device having two-sided keypad and method of forming same 审中-公开
    具有双面键盘的电子设备及其形成方法

    公开(公告)号：US20040203525A1

    公开(公告)日：2004-10-14

    申请号：US10335337

    申请日：2002-12-31

    Applicant: Motorola, Inc.

    Inventor： Joseph G. Gillette ,  Scott Potter ,  Sivakumar Muthuswamy ,  Steven D. Pratt

    IPC: H04B001/38

    CPC classification number: H04M1/23 ,  H04M1/0214

    Abstract: A portable electronic device (100) includes a keypad (e.g. 300) that may be actuated from either side of a single substrate (301, 401, 501, 601, 701, 801). The keypad includes inner actuators (103) and outer actuators (205) that provide active contact, support and tactile feel from both sides of the substrate. The electronic device gains greater operability and utility since a single keypad is operable from either side of one housing.

    Abstract translation: 便携式电子设备（100）包括可从单个基板（301,401,501,601,701,801）的任一侧致动的小键盘（例如300）。 键盘包括内部致动器（103）和外部致动器（205），其从衬底的两侧提供主动接触，支撑和触感。 电子设备获得更大的可操作性和实用性，因为单个键盘可从一个外壳的任一侧操作。

    Two-stage hybrid gas pressure regulator
    4.
    发明申请
    Two-stage hybrid gas pressure regulator 有权
    两级混合气体压力调节器

    公开(公告)号：US20040033400A1

    公开(公告)日：2004-02-19

    申请号：US10219582

    申请日：2002-08-15

    Applicant: MOTOROLA, INC.

    Inventor： Ronald James Kelley ,  Steven Duane Pratt ,  Robert Pennisi ,  Sivakumar Muthuswamy

    IPC: H01M008/04 ,  F24F011/00

    CPC classification number: H01M8/04089 ,  H01M8/04753 ,  H01M2250/30 ,  Y02B90/18 ,  Y10T137/7795

    Abstract: A gas pressure regulator (100) includes a mechanical primary stage (102), preferably including a spring valve, and an electronic secondary stage (104), preferably including a micromachined pressure regulator, the combination of the mechanical primary stage and the electronic secondary stage suitable for relatively precise low pressure near zero flow rates with reasonable energy consumption rates, such as encountered when supplying fuel to a low power fuel cell system.

    Abstract translation: 气体压力调节器（100）包括优选地包括弹簧阀的机械初级级（102）和优选包括微加工压力调节器的电子级级（104），机械初级级和电子级级 适合于具有合理能量消耗率的相对精确的低压近零流率，例如在向低功率燃料电池系统供应燃料时遇到的。

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