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46 条记录 (耗时 0.027 秒)

    Displacement absorption tunnels for circular beads
    21.
    发明授权
    Displacement absorption tunnels for circular beads 有权

    公开(公告)号：US11329296B2

    公开(公告)日：2022-05-10

    申请号：US16380270

    申请日：2019-04-10

    申请人： GM Global Technology Operations LLC

    发明人： Liang Xi ,  Siguang Xu ,  Maddani Ramya

    IPC分类号： H01M8/0276 ,  H01M8/0258

    摘要： A plate includes a planar portion and a circular bead, or circular bead seal, that is offset from the planar portion. An axis is substantially perpendicular to the planar portion, and the circular bead arcs about the axis. The axis may be defined by a hole through the planar portion that is substantially surrounded by the circular bead. One or more displacement absorption tunnels is offset from the planar portion and extends radially relative to the axis. Each of the displacement absorption tunnels intersects the circular bead. In some configurations the displacement absorption tunnels may have an arcuate shape, and in some configurations the displacement absorption tunnels may have a trapezoidal shape. A plurality of plates having similar, though not identical, features may be stacked together.

    Header design employing generally regular shapes
    22.
    发明授权
    Header design employing generally regular shapes 有权

    公开(公告)号：US10529996B2

    公开(公告)日：2020-01-07

    申请号：US15436207

    申请日：2017-02-17

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  Honda Motor Co., Ltd.

    发明人： Masaaki Sakano ,  Xi Yang ,  Liang Xi ,  Siguang Xu ,  Joseph N. Lovria ,  Jeffrey D. Williams ,  Yu Tomana ,  Kentaro Ishida

    IPC分类号： H01M8/0276 ,  H01M8/0258

    摘要： A plate includes a working face and a header portion. The working face defines a plurality of reactant channels thereon. The header portion is disposed in a peripheral area of the plate and includes a plurality of flanges and a plurality of beads. The flanges are disposed on the header portion and define a plurality of apertures through the plate. Each flange defines a respective one of the apertures. At least one of the apertures is fluidly connected to the reactant channels. The plurality of beads is disposed on the working face. Each bead is disposed about a respective one of the apertures and thereby defines a respective one of the flanges. Each bead defines a shape consisting of bead-corners and bead-sides. Each bead has a sealing surface thereon. The sealing surface is configured to deflect when exposed to a contact pressure to thereby provide a substantially fluid-tight seal.

    REINFORCEMENT STRUCTURE FOR BEAD SEAL IN A PLATE ASSEMBLY
    25.
    发明申请
    REINFORCEMENT STRUCTURE FOR BEAD SEAL IN A PLATE ASSEMBLY 审中-公开

    公开(公告)号：US20180226662A1

    公开(公告)日：2018-08-09

    申请号：US15425069

    申请日：2017-02-06

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  Honda Motor Co., Ltd.

    发明人： Xi Yang ,  Siguang Xu ,  Liang Xi ,  Richard D. Blakeley ,  Masaaki Sakano ,  Yu Tomana ,  Kentaro Ishida

    IPC分类号： H01M8/0276 ,  F16J15/02 ,  C25B9/00

    摘要： A plate assembly includes a first plate having a planar portion and a first bead seal formed therein. The first bead seal includes a first end surface spaced away from the planar portion. The first bead seal includes first and second opposing sides extending away from the first end surface and contiguous with the planar portion. The first bead seal includes a first reinforcement structure having a first plurality of walls each intersecting the first opposing side of the first bead seal. The first plate includes a second bead seal formed therein. The first bead seal and the second bead seal may be joined via the first reinforcement structure such that the first plurality of walls of the first reinforcement structure each intersect a third opposing side of the second bead seal.

    PLATE STRUCTURE FOR A FUEL CELL
    26.
    发明申请
    PLATE STRUCTURE FOR A FUEL CELL 审中-公开

    公开(公告)号：US20180226661A1

    公开(公告)日：2018-08-09

    申请号：US15425074

    申请日：2017-02-06

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Xi Yang ,  Richard D. Blakeley ,  Liang Xi ,  Siguang Xu

    IPC分类号： H01M8/0271 ,  H01M8/0286

    CPC分类号： H01M8/0276 ,  H01M8/0286 ,  H01M2008/1095 ,  Y02P70/56

    摘要： A plate structure includes a plate having a planar portion defining a datum plane. The plate includes a raised bead seal and a tunnel protruding away from the datum plane. The raised bead seal extends along a centerline laying on the datum plane. The tunnel extends along a path laying on the datum plane. The tunnel intersects the raised bead seal. The path and the centerline intersect to form a first intersection angle and an adjacent second intersection angle on the datum plane. The first intersection angle and the second intersection angle are supplementary angles. The first intersection angle is an acute angle, and the second intersection angle is an obtuse angle. The path and the centerline are arranged to form a specific value of the first intersection angle and the second intersection angle to control a stiffness of the raised bead seal.

    BIPOLAR PLATE FOR A FUEL CELL, AND A METHOD MANUFACTURING THE SAME
    29.
    发明申请
    BIPOLAR PLATE FOR A FUEL CELL, AND A METHOD MANUFACTURING THE SAME 审中-公开

    公开(公告)号：US20180114994A1

    公开(公告)日：2018-04-26

    申请号：US15298273

    申请日：2016-10-20

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Richard D. Blakeley ,  Xi Yang ,  Siguang Xu ,  Liang Xi

    IPC分类号： H01M8/0297

    CPC分类号： H01M8/0297 ,  H01M8/0206 ,  H01M8/0267 ,  Y02P70/56

    摘要： A bipolar plate for a fuel cell includes a first plate having a first bead seal, and a second plate having a second bead seal. The first bead seal and the second bead seal are disposed opposite each other and extend along a centerline. An outer weld connects the first plate and the second plate together, and extends along an outer weld line. The outer weld line is laterally spaced an outer gap distance from an outer lateral edge of the first and second bead seals. The outer gap distance varies with a position along the centerline to control a stiffness of the bead seals. Positioning the weld line nearer the outer lateral edge increases the stiffness of the raised bead seals in low stiffness areas, whereas positioning the weld line farther from the lateral edge decreases the stiffness of the raised bead seals in high stiffness areas.

    Fuel cell microseal and a method of manufacture thereof
    30.
    发明授权
    Fuel cell microseal and a method of manufacture thereof 有权

    公开(公告)号：US11431002B2

    公开(公告)日：2022-08-30

    申请号：US16392081

    申请日：2019-04-23

    申请人： GM Global Technology Operations LLC

    发明人： Xi Yang ,  Anita Luong ,  Liang Xi ,  Siguang Xu

    IPC分类号： H01M8/0276 ,  H01M8/0286 ,  H01M8/0284 ,  H01M50/183 ,  H01M8/10

    摘要： A microseal for a metal bead seal joint includes a substantially horizontal surface, first and second substantially vertical surfaces disposed on opposite ends of the substantially horizontal surface, and a contoured surface operatively configured to adhere to a portion of a metal bead. The contoured surface may be disposed opposite the substantially horizontal surface and may be integral to the first and second substantially vertical surfaces. The substantially horizontal surface may be operatively configured to substantially maintain its horizontal surface orientation in both a compression state and a non-compression state.