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    • 2. 发明申请
    • PROCEDURE FOR STARTING UP A FUEL CELL USING A FUEL PURGE
    • 使用燃油泵启动燃料电池的步骤
    • WO2005065232A3
    • 2006-09-28
    • PCT/US2004042955
    • 2004-12-21
    • UTC FUEL CELLS LLCKULP GALEN WBREAULT RICHARD D
    • KULP GALEN WBREAULT RICHARD D
    • H01M8/00H01M4/92H01M8/04
    • H01M8/04223H01M4/926H01M8/04231
    • A vacuum fuel cell system (10) and procedure provide for starting up a fuel cell (12) with a rapid fuel purge of an anode flow field (38) to minimize corrosion of a carbon catalyst support layer (26) by a reverse current mechanism produced by movement of a fuel-air front through the anode flow field (38). A vacuum source (90) applies a vacuum to the anode flow field (38) while the fuel cell (12) is shut down and while a fuel inlet valve (70) and a fuel exhaust valve (74) are closed. The resulting vacuum within the anode flow field (38) produces rapid purge of the fuel through the anode flow field (38) upon start up, and a strong vacuum will get rid of essentially all of the air within the anode flow field (38) to virtually eliminate movement of the fuel-air front.
    • 真空燃料电池系统(10)和程序提供用阳极流场(38)的快速燃料吹扫来启动燃料电池(12),以通过反向电流机制来最小化碳催化剂支撑层(26)的腐蚀 通过燃料空气前端通过阳极流场(38)的运动而产生。 当燃料电池(12)关闭并且燃料入口阀(70)和燃料排出阀(74)关闭时,真空源(90)向阳极流场(38)施加真空。 在阳极流场(38)中产生的真空在启动时通过阳极流场(38)产生燃料的快速吹扫,并且强真空将消除阳极流场(38)内的基本上所有的空气, 实际上消除了燃油空气前端的运动。