发明授权
- 专利标题: Fuel cell resuscitation method and apparatus
- 专利标题(中): 燃料电池复苏方法及装置
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申请号: US09916213申请日: 2001-07-25
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公开(公告)号: US06861167B2公开(公告)日: 2005-03-01
- 发明人: Brian Wells , Tan Duc Uong , Charles Joseph Schembri , Gregory A. James , George Alexander Skinner , Benno Giesecke
- 申请人: Brian Wells , Tan Duc Uong , Charles Joseph Schembri , Gregory A. James , George Alexander Skinner , Benno Giesecke
- 申请人地址: CA Burnaby
- 专利权人: Ballard Power Systems Inc.
- 当前专利权人: Ballard Power Systems Inc.
- 当前专利权人地址: CA Burnaby
- 代理机构: Seed IP Law Group PLLC
- 主分类号: H01M8/10
- IPC分类号: H01M8/10 ; H01M8/04 ; H01M8/00
摘要:
A fuel cell system includes fuel cells forming a fuel cell stack, having a fuel passage and an oxidant passage. A purge valve is coupled to the fuel passage to exhaust contaminants, and a controller is coupled to temporarily increase the oxidant stream flow rate through the oxidant passage, and to temporarily open the fuel purge valve, if a voltage across a pair of fuel cells is less than a defined threshold voltage. In this resuscitation step, the oxidant flow rate can be temporarily increased by increasing a duty cycle of an air compressor by approximately 50% for a duration of between approximately 5 to 10 seconds. The controller can further shut down fuel cell operation if a voltage across a pair of fuel cells is less than a defined threshold voltage in an inter-resuscitation period immediately following the resuscitation step.
公开/授权文献
- US20030022042A1 Fuel cell resuscitation method and apparatus 公开/授权日:2003-01-30