利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.029 秒)

    Method and system for controlling the operation of a hydrogen generator and a fuel cell
    7.
    发明授权
    Method and system for controlling the operation of a hydrogen generator and a fuel cell 失效
    用于控制氢发生器和燃料电池的操作的方法和系统

    公开(公告)号：US06893755B2

    公开(公告)日：2005-05-17

    申请号：US10282937

    申请日：2002-10-28

    申请人： David Leboe

    发明人： David Leboe

    IPC分类号： H01M8/04 ,  H01M8/06 ,  H02J7/00

    CPC分类号： H01M8/04089 ,  H01M8/04201 ,  H01M8/04231 ,  H01M8/04373 ,  H01M8/04388 ,  H01M8/04589 ,  H01M8/04738 ,  H01M8/04753 ,  H01M8/04992 ,  H01M8/0612 ,  H01M8/0662

    摘要： This application relates to a method and system for controlling the supply of fuel to a dead-ended hydrogen fuel cell. The invention may be utilized, for example, to more efficiently integrate the operation of a hydrogen fuel cell and a hydrogen generator, such as a reformer coupled with a hydrogen separation unit. The invention ensures that the production and consumption of hydrogen are effectively balanced to avoid negative feed line pressure fluctuations. The fuel supply control subsystem and hydrogen consumption control subsystems are, however, “decoupled” and hence independently operable. The invention may include an accumulator disposed in a flow path between the hydrogen generator and the fuel cell for storing hydrogen under pressure. The accumulator is sufficiently large in volume such that the pressure of hydrogen in the flow path does not deviate substantially from a target pressure, even during the waste purging sessions. The system enables the use of low-cost pressure transducers in place of mass flow meters. In one aspect of the invention raffinate flow from the hydrogen separator can be controllably adjusted to regulate the temperature or other operating parameters of the reformer.

    摘要翻译： 本申请涉及用于控制向死水型氢燃料电池供应燃料的方法和系统。 例如，本发明可以用于更有效地整合氢燃料电池和氢发生器的操作，例如与氢分离单元耦合的重整器。 本发明确保氢的生产和消耗有效地平衡，以避免负的进料管线压力波动。 然而，燃料供应控制子系统和氢消耗控制子系统“分离”并因此可独立操作。 本发明可以包括设置在氢气发生器和燃料电池之间的流动路径中的储存器，用于在压力下储存氢气。 蓄能器体积足够大，使得即使在废物清洗阶段期间，流动路径中的氢气压力也不会显着偏离目标压力。 该系统能够使用低成本的压力传感器代替质量流量计。 在本发明的一个方面，可以可控地调节来自氢气分离器的残液流，以调节重整器的温度或其它操作参数。

    Hybrid power supply system having energy storage device protection circuit
    8.
    发明申请
    Hybrid power supply system having energy storage device protection circuit 审中-公开
    具有储能装置保护电路的混合供电系统

    公开(公告)号：US20060061922A1

    公开(公告)日：2006-03-23

    申请号：US10947038

    申请日：2004-09-22

    申请人： Rasvan Mihai ,  Eugene Trandafir ,  David Leboe

    发明人： Rasvan Mihai ,  Eugene Trandafir ,  David Leboe

    IPC分类号： H02H7/06

    CPC分类号： B60W20/13 ,  B60L3/0046 ,  B60L3/0053 ,  B60L58/40 ,  B60W10/08 ,  B60W10/26 ,  B60W10/28 ,  B60W20/00 ,  B60W20/11 ,  B60W2510/244 ,  B60W2510/246 ,  H01M6/50 ,  H01M16/006 ,  H02J7/34 ,  H02J2001/004 ,  Y02T90/34

    摘要： This application relates to an energy storage device protection circuit for use in a hybrid system supplying power to an active dynamic DC load, such as an electric vehicle drive. The circuit prevents over-discharge of the energy storage device and ensures that the system will be capable of delivering a minimum acceptable level of power to the load, even when the energy storage device is in a low state of charge or other de-rated mode. The hybrid system includes a power generator such as fuel cell capable of supplying at least the average power value requirements of the load and an energy storage device such as a battery or capacitor capable of supplying at least the difference between the peak power requirements of the load and the average power value. A controller is provided for controlling the relative supply of power to the load from the power generator and the energy storage device. The protection circuit is in series with the energy storage device and may include a first switch controllable by the controller, a diode in parallel with the first switch and optionally a current-limiting impedance in parallel with the first switch. The system may be implemented in lift trucks and the like to prevent overdriving of the vehicle in a low state of charge condition while permitting the operator to safely return the vehicle to a service location. The system regulates the output of the fuel cell in both the normal and de-rated operating modes to avoid load-following operation.

    摘要翻译： 本申请涉及一种用于向诸如电动车辆驱动器的主动动态DC负载供电的混合动力系统中的能量存储装置保护电路。 该电路防止能量存储装置的过度放电，并且确保系统能够向负载提供最小可接受的电力水平，即使当储能装置处于低充电状态或其他降额模式 。 混合动力系统包括诸如能够至少提供负载的平均功率值要求的燃料电池的发电机和能够至少提供负载的峰值功率要求之间的差异的电池或电容器的能量存储装置 和平均功率值。 提供控制器，用于控制来自发电机和能量存储装置的负载的相对电力供应。 保护电路与能量存储装置串联，并且可以包括可由控制器控制的第一开关，与第一开关并联的二极管和可选地与第一开关并联的限流阻抗。 该系统可以在起重车等中实现，以防止车辆在低充电状态下的过度驱动，同时允许操作者将车辆安全地返回到服务位置。 该系统在正常和降额运行模式下调节燃料电池的输出，以避免负载跟随操作。

    Apparatus and method for cell voltage monitoring
    10.
    发明申请
    Apparatus and method for cell voltage monitoring 审中-公开
    电池电压监测装置及方法

    公开(公告)号：US20050057219A1

    公开(公告)日：2005-03-17

    申请号：US10667270

    申请日：2003-09-17

    申请人： Chris Kaminski ,  David Leboe ,  Michael Lee

    发明人： Chris Kaminski ,  David Leboe ,  Michael Lee

    IPC分类号： G01R31/36 ,  H02J7/00 ,  H02J7/32

    CPC分类号： H02J7/0021 ,  G01R19/16542 ,  G01R31/396

    摘要： A cell voltage monitoring device is powered internally by the stack being measured and uses no external power sources whatsoever. The cell voltage monitoring device comprises a plurality of differential amplifiers each corresponding to a cell within the stack. The differential amplifiers are divided into groups of a suitable number, each group corresponding to a set of series-connected cells being collectively measured by the differential amplifiers in that group. Within each group of differential amplifiers, the positive supply terminal of each differential amplifier is connected to the most positive output terminal of the corresponding set of series-connected cells, and the negative supply terminal of each differential amplifier is connected to the most negative output terminal of the corresponding set of series-connected cells. By doing so, each group of differential amplifiers is powered by the set of series-connected cells being measured by that group. A method of cell voltage monitoring based on this device.

    摘要翻译： 电池电压监测装置由被测量的电池内部供电，并且不使用任何外部电源。 电池电压监视装置包括多个差分放大器，每个差分放大器对应于堆叠内的单元。 差分放大器被分成适当数量的组，每个组对应于由该组中的差分放大器共同测量的一组串联连接的单元。 在每组差分放大器中，每个差分放大器的正电源端子连接到相应组串联单元的最正极输出端子，每个差分放大器的负极端子连接到最负极输出端子 的相应组的串联单元。 通过这样做，每组差分放大器由被该组测量的一组串联连接的电池供电。 基于该装置的电池电压监测方法。