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    DIE CLEARANCE CONTROL FOR THIN SHEET STAINLESS STEEL BPP FORMING
    1.
    发明申请
    DIE CLEARANCE CONTROL FOR THIN SHEET STAINLESS STEEL BPP FORMING 有权
    用于薄板不锈钢BPP成型的DIE间隙控制

    公开(公告)号：US20160056478A1

    公开(公告)日：2016-02-25

    申请号：US14466244

    申请日：2014-08-22

    Applicant: GM Global Technology Operations LLC

    Inventor： Siguang Xu ,  Joseph N. Lovria ,  Elizabeth Dicocco

    IPC: H01M8/02 ,  H01M8/10

    CPC classification number: H01M8/0206 ,  H01M8/021 ,  H01M8/0247 ,  H01M8/10 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02P70/56 ,  Y02T90/32

    Abstract: A bipolar plate used in a fuel cell and a method of making a bipolar plate. The sheet is made generally from a stainless steel, and in a more preferable form from a ferritic stainless steel. In one configuration, a stamping or related metal forming tool operation will introduce a negative clearance as a way to move or otherwise reallocate a portion of the material making up the sheet into other portions as a way to reduce stretching, necking, thinning and related thickness deviations associated with the bends formed in the bipolar plate.

    Abstract translation: 用于燃料电池的双极板和制造双极板的方法。 片材通常由不锈钢制成，并且以更优选的形式由铁素体不锈钢制成。 在一种构造中，冲压或相关的金属成型工具操作将引入负间隙作为将构成片材的材料的一部分移动或以其它方式重新分配到其它部分的方式，以减少拉伸，颈缩，变薄和相关厚度 与双极板中形成的弯曲相关的偏差。

    Die clearance control for thin sheet stainless steel BPP forming
    2.
    发明授权
    Die clearance control for thin sheet stainless steel BPP forming 有权
    薄板不锈钢BPP成型的模具间隙控制

    公开(公告)号：US09406945B2

    公开(公告)日：2016-08-02

    申请号：US14466244

    申请日：2014-08-22

    Applicant: GM Global Technology Operations LLC

    Inventor： Siguang Xu ,  Joseph N. Lovria ,  Elizabeth Dicocco

    IPC: H01M8/0206 ,  H01M8/10 ,  H01M8/021 ,  H01M8/0247 ,  H01M8/02

    CPC classification number: H01M8/0206 ,  H01M8/021 ,  H01M8/0247 ,  H01M8/10 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02P70/56 ,  Y02T90/32

    Abstract: A bipolar plate used in a fuel cell and a method of making a bipolar plate. The sheet is made generally from a stainless steel, and in a more preferable form from a ferritic stainless steel. In one configuration, a stamping or related metal forming tool operation will introduce a negative clearance as a way to move or otherwise reallocate a portion of the material making up the sheet into other portions as a way to reduce stretching, necking, thinning and related thickness deviations associated with the bends formed in the bipolar plate.

    Abstract translation: 用于燃料电池的双极板和制造双极板的方法。 片材通常由不锈钢制成，并且以更优选的形式由铁素体不锈钢制成。 在一种构造中，冲压或相关的金属成型工具操作将引入负间隙作为将构成片材的材料的一部分移动或以其它方式重新分配到其它部分的方式，以减少拉伸，颈缩，变薄和相关厚度 与双极板中形成的弯曲相关的偏差。

    Header design employing generally regular shapes
    3.
    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

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

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

    IPC: H01M8/0276 ,  H01M8/0258

    Abstract: 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.

    HEADER DESIGN EMPLOYING GENERALLY REGULAR SHAPES
    5.
    发明申请
    HEADER DESIGN EMPLOYING GENERALLY REGULAR SHAPES 审中-公开

    公开(公告)号：US20180241055A1

    公开(公告)日：2018-08-23

    申请号：US15436207

    申请日：2017-02-17

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

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

    IPC: H01M8/0276 ,  H01M8/0258

    Abstract: 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.

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