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公开(公告)号:US20050031922A1
公开(公告)日:2005-02-10
申请号:US10637832
申请日:2003-08-08
IPC分类号: H01M20060101 , H01M8/04
CPC分类号: H01M8/04231
摘要: Hydrogen in a fuel cell is vented and purged with a fail-closed valve using stored energy (e.g. from a capacitor) when a diagnostic parameter is outside of an acceptable operating range. The valve closes after the stored energy has depleted. A safety switch in the relay circuit of the solenoid switch (or solenoid valve) is also grounded in computer-implemented shutdowns. Benefits from the invention include use of air-compatible catalysts, minimized parasitic losses to power output, minimized contamination of fuel cell internal surfaces after venting, minimized risk of explosive mixture buildup, and efficient operation.
摘要翻译: 当诊断参数在可接受的工作范围之外时,使用存储的能量(例如来自电容器),利用故障关闭阀将燃料电池中的氢气排出并吹扫。 存储的能量耗尽后阀门关闭。 电磁开关(或电磁阀)的继电器电路中的安全开关也接地在计算机执行的关机中。 本发明的优点包括使用空气兼容的催化剂,最小化功率输出的寄生损耗,最小化排气后燃料电池内表面的污染,最小化爆炸性混合物积聚的风险和有效的操作。