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    Reinforced stators and fabrication methods
    2.
    发明授权
    Reinforced stators and fabrication methods 有权
    加固定子和制造方法

    公开(公告)号：US09309767B2

    公开(公告)日：2016-04-12

    申请号：US13817032

    申请日：2011-08-15

    申请人： Harold A. Sreshta ,  Jiinjen Albert Sue ,  Stefan M. Butuc ,  Jan Edgar Marshall

    发明人： Harold A. Sreshta ,  Jiinjen Albert Sue ,  Stefan M. Butuc ,  Jan Edgar Marshall

    IPC分类号： F01C21/00 ,  F01C1/22 ,  F04C2/107

    CPC分类号： F01C1/22 ,  B33Y80/00 ,  F04C2/1075 ,  Y10T29/49826

    摘要： A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition, the stator comprises a stator insert coaxially disposed within the housing. The stator insert has a radially outer surface that engages the housing and a radially inner surface defining a helical-shaped through bore extending axially through the stator insert. The stator insert includes an insert body and an insert liner attached to the insert body. The insert body is radially positioned between the housing and the insert liner. The insert body comprises a reinforcement structure and a plurality of voids dispersed within the reinforcement structure.

    摘要翻译： 用于渐进式泵或电动机的定子包括具有中心轴线的管状壳体。 此外，定子包括同轴地设置在壳体内的定子插入件。 定子插入件具有径向外表面，该外表面与壳体接合，径向内表面限定螺旋状通孔，其轴向延伸穿过定子插入件。 定子插入件包括插入体和附接到插入体的插入衬垫。 插入体径向地定位在壳体和插入衬垫之间。 插入体包括加​​强结构和分散在加强结构内的多个空隙。

    Reinforced Stators and Fabrication Methods
    3.
    发明申请
    Reinforced Stators and Fabrication Methods 有权
    加固定子及制作方法

    公开(公告)号：US20130149182A1

    公开(公告)日：2013-06-13

    申请号：US13817032

    申请日：2011-08-15

    申请人： Harold A. Sreshta ,  Jiinjen Albert Sue ,  Stefan M. Butuc ,  Jan Edgar Marshall

    发明人： Harold A. Sreshta ,  Jiinjen Albert Sue ,  Stefan M. Butuc ,  Jan Edgar Marshall

    IPC分类号： F01C1/22

    CPC分类号： F01C1/22 ,  B33Y80/00 ,  F04C2/1075 ,  Y10T29/49826

    摘要： A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition, the stator comprises a stator insert coaxially disposed within the housing. The stator insert has a radially outer surface that engages the housing and a radially inner surface defining a helical-shaped through bore extending axially through the stator insert. The stator insert includes an insert body and an insert liner attached to the insert body. The insert body is radially positioned between the housing and the insert liner. The insert body comprises a reinforcement structure and a plurality of voids dispersed within the reinforcement structure.

    摘要翻译： 用于渐进式泵或电动机的定子包括具有中心轴线的管状壳体。 此外，定子包括同轴地设置在壳体内的定子插入件。 定子插入件具有径向外表面，该外表面与壳体接合，径向内表面限定螺旋状通孔，其轴向延伸穿过定子插入件。 定子插入件包括插入体和附接到插入体的插入衬垫。 插入体径向地定位在壳体和插入衬垫之间。 插入体包括加​​强结构和分散在加强结构内的多个空隙。

    POLYCRYSTALLINE DIAMOND CUTTING ELEMENT
    8.
    发明申请
    POLYCRYSTALLINE DIAMOND CUTTING ELEMENT 审中-公开
    多晶金刚石切割元件

    公开(公告)号：US20150075877A1

    公开(公告)日：2015-03-19

    申请号：US14553849

    申请日：2014-11-25

    申请人： National Oilwell DHT, L.P.

    发明人： Deepthi Raj Setlur ,  Michael D. Hughes ,  Mark Jonathan Francis ,  Harold A. Sreshta ,  Guodong Zhan ,  Russell C. Gilleylen ,  JiinJen Albert Sue

    IPC分类号： E21B10/567 ,  B24D18/00 ,  E21B10/573

    摘要： A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.

    摘要翻译： 用于井下工具的钻头的多晶金刚石切割元件。 切割元件包括基底和结合到基底的金刚石台。 钻石台包括金刚石填料，其中至少一个浸出的多晶金刚石段沿其至少一个工作表面装入其中。 切割元件可以通过将金刚石台定位在基底上并将金刚石台结合到基底上而形成，使得多晶金刚石段沿钻石台的至少一个工作表面定位。 可以使用火花等离子体烧结或双压操作将金刚石台结合到基底上。