VARIABLE BACK-UP RING AND A SEALING STRUCTURE HAVING THE SAME

    公开(公告)号:US20240117881A1

    公开(公告)日:2024-04-11

    申请号:US18391069

    申请日:2023-12-20

    发明人: Byung Ryeol Lee

    IPC分类号: F16J15/16 H01M8/0276

    CPC分类号: F16J15/166 H01M8/0278

    摘要: A sealing structure includes a first connector body having a groove, a second connector body encompassing the first connector body, an O-ring partially received in the groove of the first connector body, and a variable back-up ring partially received in the groove of the first connector body and holding the O-ring. The variable back-up ring is deformable in a radial direction depending on a magnitude of a fluid pressure applied between the first connector body and the second connector body.

    FUEL CELL SEPARATOR WITH GASKET FOR IMPROVED SEALING
    5.
    发明申请
    FUEL CELL SEPARATOR WITH GASKET FOR IMPROVED SEALING 审中-公开
    带垫圈的燃油电池分离器,用于改进密封

    公开(公告)号:US20170018786A1

    公开(公告)日:2017-01-19

    申请号:US15196485

    申请日:2016-06-29

    IPC分类号: H01M8/0276 H01M8/04082

    摘要: A fuel cell separator with a gasket for improved sealing is provided. The fuel cell separator with a gasket is capable of improving the contact pressure of a cooling surface-side airtight line by additionally forming a sub-airtight line in a region in which a gas aperture is not formed at a cooling surface-side position that corresponds to the cooling surface-side airtight line of the separator.

    摘要翻译: 提供了具有用于改善密封的垫圈的燃料电池隔板。 具有垫圈的燃料电池分离器能够通过在与对应的冷却表面侧位置处未形成气体开口的区域中另外形成副气密线来提高冷却表面侧气密线的接触压力 到分离器的冷却表面侧气密线。

    ELECTROCHEMICAL CELL STACK
    7.
    发明申请
    ELECTROCHEMICAL CELL STACK 审中-公开
    电化学电池堆

    公开(公告)号:US20130008782A1

    公开(公告)日:2013-01-10

    申请号:US13581807

    申请日:2011-03-11

    IPC分类号: H01M8/04 H01M8/24 C25B9/18

    摘要: A cell stack has frames having lines of four apertures (41) at each end. In the stack, the apertures form four ducts at each end of the side of the stack, with the ducts extending from end to end of the stack for electrolyte flow therethrough. The apertures in the transfer frames have no passages connected to them. The eight apertures (41) in the passage frame are surrounded in pairs by four grooves (44) and 0-rings (45), dividing them into a pair for anolyte feed, a pair for anolyte return, a pair for catholyte feed and a pair for catholyte return. The stack is divided into opposite end sections (46, 47). Only one of each pair is connected to a local feed or return flow passage, contained within the 0-rings. The other is connected in the other section. The anolyte feed and return passages (51,52,55,56) lead from their apertures to respective openings (61) from the side (4) of each passage frame to its plain face (18). Here a distribution rebate (62), with spreading features (63), is provided to distribute/collect electrolyte to the graphite felt in the anolyte half cell. The result is that there is no electrical connection via the electrolyte in the ducts between cells at opposite ends of the stack. The inner ones of the ducts connect the cells at opposite ends of the section 46 and the outer ones the cells at opposite ends of the ducts (47). Thus a shunt current paths still exist, but at only half the voltage to the entire stack.

    摘要翻译: 电池堆在每个端部具有具有四个孔(41)的线的框架。 在堆叠中,孔在堆叠的侧面的每个端部处形成四个管道,其中管道从堆叠的端部延伸到末端,以使电解液流过其中。 传送框架中的孔没有连接到它们的通道。 通道框架中的八个孔(41)成对地被四个凹槽(44)和O形环(45)成对地分开,将它们分成用于阳极电解液进料的一对,阳极液返回的一对,阴极电解液进料的一对和 对阴道电泳返回。 该堆叠被分成相对的端部(46,47)。 每对中只有一个连接到包含在0环内的本地进料或回流通道。 另一部分连接在另一部分。 阳极电解液进料和返回通道(51,52,55,56)从它们的孔引导到从每个通道框架的侧面(4)到其平面(18)的各个开口(61)。 这里提供具有扩展特征(63)的分配回扣(62)以将电解质分配/收集到阳极电解液半电池中的石墨毡。 结果是在堆叠的相对端的电池之间的管道中的电解质没有电连接。 管道中的内部管道将部分46的相对端处的细胞和管道(47)的相对端处的细胞的外部细胞连接。 因此,分流电流路径仍然存在,但是仅为整个堆叠的电压的一半。

    Electrochemical apparatus
    8.
    发明授权
    Electrochemical apparatus 有权
    电化学仪器

    公开(公告)号:US08337678B2

    公开(公告)日:2012-12-25

    申请号:US12712711

    申请日:2010-02-25

    IPC分类号: C25B9/00 C25B1/02 C25B1/04

    摘要: A hydrogen electrolysis apparatus includes a stack of unit cells each having a membrane electrode assembly sandwiched between an anode separator and a cathode separator. The anode separator has a first flow field which is supplied with water, and the cathode separator has a second flow field which produces high-pressure hydrogen through an electrolysis of the water. The cathode separator also has a first seal groove defined therein which extends around the second flow field and a first seal member inserted in the first seal groove. The first seal groove and the second flow field are held in fluid communication with each other through passageways. The passageways keep the first seal groove and the second flow field in direct fluid communication with each other in bypassing relation to the boundary between the cathode separator and a solid polymer electrolyte membrane.

    摘要翻译: 氢电解装置包括一个单元电池堆,每个单元电池都具有夹在阳极隔板和阴极隔板之间的膜电极组件。 阳极分离器具有供给水的第一流场,阴极分离器具有通过电解电解产生高压氢的第二流场。 阴极分离器还具有限定在其中的第一密封槽,其围绕第二流场延伸,以及插入第一密封槽中的第一密封构件。 第一密封槽和第二流场通过通道保持流体连通。 通道保持第一密封槽和第二流场与阴极分离器和固体聚合物电解质膜之间的边界相互直接流体连通。

    ELECTROCHEMICAL APPARATUS
    9.
    发明申请
    ELECTROCHEMICAL APPARATUS 有权
    电化学设备

    公开(公告)号:US20100213051A1

    公开(公告)日:2010-08-26

    申请号:US12712711

    申请日:2010-02-25

    IPC分类号: C25B9/00

    摘要: A hydrogen electrolysis apparatus includes a stack of unit cells each having a membrane electrode assembly sandwiched between an anode separator and a cathode separator. The anode separator has a first flow field which is supplied with water, and the cathode separator has a second flow field which produces high-pressure hydrogen through an electrolysis of the water. The cathode separator also has a first seal groove defined therein which extends around the second flow field and a first seal member inserted in the first seal groove. The first seal groove and the second flow field are held in fluid communication with each other through passageways. The passageways keep the first seal groove and the second flow field in direct fluid communication with each other in bypassing relation to the boundary between the cathode separator and a solid polymer electrolyte membrane.

    摘要翻译: 氢电解装置包括一个单元电池堆,每个单元电池都具有夹在阳极隔板和阴极隔板之间的膜电极组件。 阳极分离器具有供给水的第一流场,阴极分离器具有通过电解电解产生高压氢的第二流场。 阴极分离器还具有限定在其中的第一密封槽,其围绕第二流场延伸,以及插入第一密封槽中的第一密封构件。 第一密封槽和第二流场通过通道保持流体连通。 通道保持第一密封槽和第二流场与阴极分离器和固体聚合物电解质膜之间的边界相互直接流体连通。