利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

64 条记录 (耗时 0.028 秒)

    Humidification control during shutdown of a fuel cell system
    1.
    发明授权
    Humidification control during shutdown of a fuel cell system 有权
    燃料电池系统停机时的加湿控制

    公开(公告)号：US08168343B2

    公开(公告)日：2012-05-01

    申请号：US12184776

    申请日：2008-08-01

    申请人： Bruce J. Clingerman ,  Steven D. Burch ,  John P. Salvador ,  Manish Sinha

    发明人： Bruce J. Clingerman ,  Steven D. Burch ,  John P. Salvador ,  Manish Sinha

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04231 ,  H01M8/04126 ,  H01M8/04634

    摘要： A process for controlling the length of a purge and the purge rate of a fuel cell stack at system shut-down so as to provide the desired amount of stack humidity. The membrane humidification is measured at system shut-down by a high frequency resistance sensor that detects membrane humidification and provides the measurement to a controller. The controller controls the compressor that provides cathode input air to the fuel cell stack so that the time of the purge and the flow rate of the purge provide a desired membrane humidity for the next start-up.

    摘要翻译： 用于在系统关闭时控制净化长度和燃料电池堆的吹扫速率以提供所需量的堆积湿度的方法。 通过检测膜加湿的高频电阻传感器在系统关闭时测量膜加湿，并向控制器提供测量。 控制器控制向燃料电池堆提供阴极输入空气的压缩机，使得净化时间和吹扫流量为下次启动提供期望的膜湿度。

    HUMIDIFICATION CONTROL DURING SHUTDOWN OF A FUEL CELL SYSTEM
    2.
    发明申请
    HUMIDIFICATION CONTROL DURING SHUTDOWN OF A FUEL CELL SYSTEM 有权
    燃料电池系统关闭期间的湿度控制

    公开(公告)号：US20100028728A1

    公开(公告)日：2010-02-04

    申请号：US12184776

    申请日：2008-08-01

    申请人： Bruce J. Clingerman ,  Steven D. Burch ,  John P. Salvador ,  Manish Sinha

    发明人： Bruce J. Clingerman ,  Steven D. Burch ,  John P. Salvador ,  Manish Sinha

    IPC分类号： H01M8/00 ,  H01M8/04

    CPC分类号： H01M8/04231 ,  H01M8/04126 ,  H01M8/04634

    摘要： A process for controlling the length of a purge and the purge rate of a fuel cell stack at system shut-down so as to provide the desired amount of stack humidity. The membrane humidification is measured at system shut-down by a high frequency resistance sensor that detects membrane humidification and provides the measurement to a controller. The controller controls the compressor that provides cathode input air to the fuel cell stack so that the time of the purge and the flow rate of the purge provide a desired membrane humidity for the next start-up.

    摘要翻译： 用于在系统关闭时控制净化长度和燃料电池堆的吹扫速率以提供所需量的堆积湿度的方法。 通过检测膜加湿的高频电阻传感器在系统关闭时测量膜加湿，并向控制器提供测量。 控制器控制向燃料电池堆提供阴极输入空气的压缩机，使得清洗时间和吹扫流量为下一次启动提供期望的膜湿度。

    System and method for controlling steam in a fuel system with a fuel processor
    8.
    发明授权
    System and method for controlling steam in a fuel system with a fuel processor 有权
    用燃料处理器控制燃料系统中的蒸汽的系统和方法

    公开(公告)号：US06709780B2

    公开(公告)日：2004-03-23

    申请号：US10136843

    申请日：2002-04-30

    申请人： Donald H. Keskula ,  Bruce J. Clingerman ,  Steven D. Burch ,  Paul T. Yu

    发明人： Donald H. Keskula ,  Bruce J. Clingerman ,  Steven D. Burch ,  Paul T. Yu

    IPC分类号： H01M804

    CPC分类号： H01M8/04228 ,  H01M8/0267 ,  H01M8/04089 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04302 ,  H01M8/04303 ,  H01M8/0618

    摘要： A control system controls steam in a fuel cell system including a fuel processor. A fuel cell has run, standby and shutdown operating modes. A fuel processor provides reformate to the fuel cell. A pressure sensor generates a pressure signal based on a pressure of steam supplied to the fuel processor. A valve directs steam to or vents steam away from the fuel processor. A controller communicates with the pressure sensor, the fuel cell and the valve and controls the valve based on the operating mode of the fuel cell and the pressure signal. The controller opens the valve during the shutdown mode. The controller closes the valve during the run operating mode. The controller initially closes the valve during the standby mode. The controller opens the valve if the pressure signal exceeds a first predetermined pressure value and closes the valve when the pressure falls.

    摘要翻译： 控制系统控制包括燃料处理器的燃料电池系统中的蒸汽。 燃料电池具有运行，待机和关机操作模式。 燃料处理器为燃料电池提供重整产品。 压力传感器基于供应到燃料处理器的蒸汽的压力产生压力信号。 一个阀门将蒸汽引导到或者将蒸气从燃料处理器排出。 控制器与压力传感器，燃料电池和阀门进行通信，并且基于燃料电池的操作模式和压力信号来控制阀。 控制器在关机模式下打开阀门。 控制器在运行模式下关闭阀门。 控制器在待机模式下首先关闭阀门。 如果压力信号超过第一预定压力值，则控制器打开阀门，当压力下降时关闭阀门。

    Fuel cell system including a two-position back-pressure valve
    10.
    发明授权
    Fuel cell system including a two-position back-pressure valve 有权
    燃料电池系统包括两位置背压阀

    公开(公告)号：US07771855B2

    公开(公告)日：2010-08-10

    申请号：US11750875

    申请日：2007-05-18

    申请人： Bruce J. Clingerman ,  John P. Salvador ,  Ronald L. James

    发明人： Bruce J. Clingerman ,  John P. Salvador ,  Ronald L. James

    IPC分类号： H01M8/04 ,  H01M8/00 ,  H01M2/00

    CPC分类号： H01M8/04089 ,  H01M8/04126 ,  H01M8/04223 ,  H01M8/04228

    摘要： A fuel cell system that employs a two-position valve at the cathode exhaust gas output for controlling the pressure within the fuel cell stack to control the stack relative humidity. In one embodiment, the two-position valve is switchable between a fully open and a fully closed position, where the valve is opened when the fuel cell system is operating at a low operation temperature and the valve is closed when the fuel cell system is operating at a high operation temperature. A fixed restriction valve is provided in parallel with the two-position valve so that when the two-position valve is fully closed, the proper amount of pressure is provided at the cathode output. In another embodiment, the two-position valve employs sized leak paths so that when the two-position valve is in the closed position, the cathode exhaust gas can still flow through.

    摘要翻译： 一种燃料电池系统，其在阴极废气输出处采用两位置阀来控制燃料电池堆内的压力以控制堆叠相对湿度。 在一个实施例中，双位置阀可以在完全打开和完全关闭的位置之间切换，当燃料电池系统在低操作温度下操作时阀被打开，并且当燃料电池系统运行时阀被关闭 在高的操作温度。 与二位置阀并联设置一个固定的限位阀，当两位阀完全关闭时，在阴极输出端提供适当的压力。 在另一个实施例中，双位阀采用大小的泄漏路径，使得当两位置阀处于关闭位置时，阴极废气仍然可以流过。