Membrane and electrode structure for methanol fuel cell
    1.
    发明授权
    Membrane and electrode structure for methanol fuel cell 失效
    甲醇燃料电池膜和电极结构

    公开(公告)号:US5958616A

    公开(公告)日:1999-09-28

    申请号:US19733

    申请日:1998-02-06

    摘要: The invention provides devices and techniques for reducing or eliminating fuel crossover from the anode to the cathode in fuel cells using organic fuels. The invention particularly provides proton exchange membranes having passages or channels with or without a catalyst layer active for the electrochemical oxidation of a fuel. The invention reduces fuel crossover by providing void spaces within the membrane where the fuel may be sequestered as it diffuses through the membrane from the anode to the cathode. The sequestered fuel may be removed physically and/or electrochemically. The invention provides for physical removal of the sequestered fuel by means of flowing a gas stream or a liquid stream through the passages thus evacuating the fuel before it diffuses to the cathode. Electrochemical removal of the fuel involves coating the inner walls of the passages with a catalyst, electronically connecting the catalyst with the anode, and electrooxidation of the crossover fuel sequestered in contact with the catalyst which is active for this oxidation process.

    摘要翻译: 本发明提供了用于减少或消除使用有机燃料的燃料电池中从阳极到阴极的燃料交叉的装置和技术。 本发明特别提供了具有或不具有用于燃料的电化学氧化活性的催化剂层的通道或通道的质子交换膜。 本发明通过在膜内提供空隙来减少燃料交叉,其中燃料可以通过膜从阳极扩散到阴极而被隔离。 隔离燃料可以物理和/或电化学去除。 本发明提供了通过使气体流或液体流流过通道从而物理去除隔离燃料,从而在燃料扩散到阴极之前抽空燃料。 燃料的电化学去除包括用催化剂涂覆通道的内壁,将催化剂与阳极电连接,并与与该氧化过程有活性的催化剂相接触的交换燃料电氧化。

    AUXILIARY FLUID SOURCE FOR AN EGR PURGE SYSTEM
    4.
    发明申请
    AUXILIARY FLUID SOURCE FOR AN EGR PURGE SYSTEM 有权
    用于EGR净化系统的辅助流体源

    公开(公告)号:US20090129914A1

    公开(公告)日:2009-05-21

    申请号:US11941447

    申请日:2007-11-16

    IPC分类号: F02C9/16 F02C1/00

    CPC分类号: F02C3/34 F01N3/04 Y02T10/20

    摘要: The exhaust within an exhaust gas recirculation (EGR) system should be purged to allow for access to the components of the EGR system. A system and method for purging the EGR system is provided. The system and method may incorporate a purge gas supply that may include: at least one pressurized cylinder, a storage tank, a compressor, or a benign fluid source. The system and method may drive the exhaust out of the EGR system.

    摘要翻译: 排气再循环(EGR)系统中的废气应被清除以允许进入EGR系统的部件。 提供了一种用于净化EGR系统的系统和方法。 该系统和方法可以包括净化气体供应源,其可以包括:至少一个加压缸,储罐,压缩机或良性流体源。 该系统和方法可以将排气驱动出EGR系统。

    Auxiliary fluid source for an EGR purge system
    5.
    发明授权
    Auxiliary fluid source for an EGR purge system 有权
    用于EGR清洗系统的辅助流体源

    公开(公告)号:US07874141B2

    公开(公告)日:2011-01-25

    申请号:US11941447

    申请日:2007-11-16

    CPC分类号: F02C3/34 F01N3/04 Y02T10/20

    摘要: The exhaust within an exhaust gas recirculation (EGR) system should be purged to allow for access to the components of the EGR system. A system and method for purging the EGR system is provided. The system and method may incorporate a purge gas supply that may include: at least one pressurized cylinder, a storage tank, a compressor, or a benign fluid source. The system and method may drive the exhaust out of the EGR system.

    摘要翻译: 排气再循环(EGR)系统中的废气应被清除以允许进入EGR系统的部件。 提供了一种用于净化EGR系统的系统和方法。 该系统和方法可以包括净化气体供应源,其可以包括:至少一个加压缸,储罐,压缩机或良性流体源。 该系统和方法可以将排气驱动出EGR系统。