公开(公告)号：US20110143241A1

公开(公告)日：2011-06-16

申请号：US12636343

申请日：2009-12-11

申请人： Thomas W. Tighe ,  Steven G. Goebel ,  Gary M. Robb ,  Abdullah B. Alp ,  Balasubramanian Lakshmanan ,  Joseph Nicholas Lovria

发明人： Thomas W. Tighe ,  Steven G. Goebel ,  Gary M. Robb ,  Abdullah B. Alp ,  Balasubramanian Lakshmanan ,  Joseph Nicholas Lovria

IPC分类号： H01M8/00

CPC分类号： H01M8/04231 ,  H01M8/04089 ,  H01M8/04126 ,  H01M8/04223 ,  H01M8/04302 ,  H01M8/04303 ,  H01M8/04395 ,  H01M8/04455 ,  H01M8/04559 ,  H01M8/04701 ,  H01M8/04746 ,  H01M8/04753 ,  H01M8/04798 ,  H01M8/04955 ,  H01M2250/20 ,  Y02T90/32

摘要： A method for creating an oxygen depleted gas in a fuel cell system, including operating a fuel cell stack at a desired cathode stoichiometry at fuel cell system shutdown to displace a cathode exhaust gas with an oxygen depleted gas. The method further includes closing a cathode flow valve and turning off a compressor to stop the flow of cathode air.

摘要翻译： 一种用于在燃料电池系统中产生贫氧气体的方法，包括在燃料电池系统关闭时以期望的阴极化学计量运行燃料电池堆，以用贫氧气体置换阴极废气。 该方法还包括关闭阴极流量阀并关闭压缩机以阻止阴极空气的流动。

公开(公告)号：US20110229781A1

公开(公告)日：2011-09-22

申请号：US12725771

申请日：2010-03-17

申请人： Daniel I. Harris ,  Joseph Nicholas Lovria ,  Patrick Frost

发明人： Daniel I. Harris ,  Joseph Nicholas Lovria ,  Patrick Frost

IPC分类号： H01M8/04

CPC分类号： H01M8/04201 ,  H01M8/0267 ,  H01M8/04097 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04302 ,  H01M8/04313 ,  H01M8/0432 ,  H01M8/04388 ,  H01M8/04447 ,  H01M8/04552 ,  H01M8/04589 ,  H01M8/04597 ,  H01M8/04753 ,  H01M8/242 ,  H01M8/2483 ,  H01M2008/1095 ,  Y02E60/50

摘要： A fuel cell system is disclosed with a fuel cell stack having a plurality of fuel cells, the fuel cell stack including an anode supply manifold and an anode exhaust manifold, a sensor for measuring at least one of an environmental condition affecting the fuel cell stack and a characteristic of the fuel cell stack, wherein the sensor generates a sensor signal representing the measurement of the sensor; and a processor for receiving the sensor signal, analyzing the sensor signal, and controlling a flow rate of a fluid flowing into the anode supply manifold based upon the analysis of the sensor signal.

摘要翻译： 燃料电池系统被公开为具有多个燃料电池的燃料电池堆，所述燃料电池堆包括阳极供应歧管和阳极排气歧管，传感器，用于测量影响燃料电池堆的环境条件和 燃料电池堆的特征，其中所述传感器产生表示所述传感器的测量的传感器信号; 以及处理器，用于接收传感器信号，分析传感器信号，以及基于传感器信号的分析来控制流入阳极供应歧管的流体的流量。

公开(公告)号：US20110183225A1

公开(公告)日：2011-07-28

申请号：US12693251

申请日：2010-01-25

申请人： Daniel I. Harris ,  Joseph Nicholas Lovria ,  Matthew C. Kirklin ,  Gary M. Robb

发明人： Daniel I. Harris ,  Joseph Nicholas Lovria ,  Matthew C. Kirklin ,  Gary M. Robb

IPC分类号： H01M8/00 ,  H01M8/04

CPC分类号： H01M8/04455 ,  H01M8/04798 ,  H01M2250/20 ,  Y02T90/32

摘要： A method for controlling cathode air flow at system start-up by controlling a stack by-pass valve. The method includes determining a concentration of hydrogen in a cathode side of the fuel cell system. The method also includes determining a volumetric flow rate through a cathode compressor, determining a volumetric flow rate through the stack cathode and determining a fraction of volumetric flow rate through the cathode to the total flow through the compressor. The method determines a modeled hydrogen outlet concentration from the fuel cell stack based on the volumetric flow rate through the compressor, the fraction of volumetric flow rate through the compressor to the total flow through the compressor and the concentration of hydrogen in the cathode. The method uses a desired fraction of volumetric flow rate through the cathode and the total flow through the compressor to determine the position of the by-pass valve.

摘要翻译： 一种通过控制堆叠旁通阀来控制系统启动时的阴极气流的方法。 该方法包括确定燃料电池系统的阴极侧的氢浓度。 该方法还包括确定通过阴极压缩机的体积流量，确定通过堆叠阴极的体积流量，并确定通过阴极的体积流量与通过压缩机的总流量的比例。 该方法基于通过压缩机的体积流量，通过压缩机的体积流量与通过压缩机的总流量的比例以及阴极中的氢浓度，确定来自燃料电池堆的模拟氢出口浓度。 该方法使用通过阴极的体积流量的期望分数和通过压缩机的总流量来确定旁通阀的位置。