Invention Grant
US07641993B2 Exhaust emissions control of hydrogen throughout fuel cell stack operation
有权
废气排放控制氢气在整个燃料电池堆运行
- Patent Title: Exhaust emissions control of hydrogen throughout fuel cell stack operation
- Patent Title (中): 废气排放控制氢气在整个燃料电池堆运行
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Application No.: US11449931Application Date: 2006-06-09
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Publication No.: US07641993B2Publication Date: 2010-01-05
- Inventor: David A. Arthur , Abdullah B. Alp
- Applicant: David A. Arthur , Abdullah B. Alp
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations, Inc.
- Current Assignee: GM Global Technology Operations, Inc.
- Current Assignee Address: US MI Detroit
- Agency: Miller IP Group, PLC
- Agent John A. Miller
- Main IPC: H01M8/04
- IPC: H01M8/04
Abstract:
A system and method for limiting the amount of hydrogen being bled from an anode exhaust line. The method includes maintaining a pressure bias between an anode outlet and a cathode outlet of a fuel cell stack so that when an anode exhaust gas is bled from the anode exhaust line and mixed with the cathode exhaust gas, the concentration of hydrogen in the mixed gas is maintained below a predetermined percentage. The pressure bias is such that the anode exhaust gas has a higher gas pressure than the cathode exhaust gas.
Public/Granted literature
- US20070287044A1 Exhaust emissions control of hydrogen throughout fuel cell stack operation Public/Granted day:2007-12-13
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