DRILLING MOTORS WITH ELASTICALLY DEFORMABLE LOBES
    4.
    发明申请
    DRILLING MOTORS WITH ELASTICALLY DEFORMABLE LOBES 审中-公开
    钻孔机具有弹性变形杆

    公开(公告)号:WO2013006450A4

    公开(公告)日:2013-09-19

    申请号:PCT/US2012044975

    申请日:2012-06-29

    Inventor: DICK AARON J

    CPC classification number: E21B4/02 F01C21/08 F03C2/08 F04C2/1071 F04C2230/231

    Abstract: In an aspect, a drilling motor is provided that in one embodiment includes a stator and a rotor configured to be disposed in the stator, wherein the rotor includes a lobe member having an elastically deformable surface configured to provide an interference seal between the stator and the rotor.

    Abstract translation: 在一方面,提供了一种钻孔电动机,其在一个实施例中包括定子和被配置为设置在定子中的转子,其中转子包括具有弹性变形表面的凸角构件,该构件构造成在定子和 转子。

    SYNERGIC SURFACE MODIFICATION FOR BEARING SEAL
    7.
    发明申请
    SYNERGIC SURFACE MODIFICATION FOR BEARING SEAL 审中-公开
    用于轴承密封的合成表面改性

    公开(公告)号:WO2011028427A2

    公开(公告)日:2011-03-10

    申请号:PCT/US2010045972

    申请日:2010-08-19

    CPC classification number: E21B10/25 F16J15/3424 F16J15/344 Y10T29/49885

    Abstract: The present invention relates to a method and apparatus for forming a dynamic seal between two surfaces (136, 140). More specifically, the invention relates to creating a textured surface (166) with a thin, hard coating (176) on a metallic annular sealing ring (170) such as the sealing ring used in an earth boring drill bit (100).

    Abstract translation: 本发明涉及用于在两个表面(136,140)之间形成动态密封件的方法和装置。 更具体地,本发明涉及在金属环形密封环(170)上形成具有薄的硬质涂层(176)的纹理表面(166),例如用于钻孔钻头(100)中的密封环。

    ENGINEERED BEARING SURFACE FOR ROCK DRILLING BIT
    8.
    发明申请
    ENGINEERED BEARING SURFACE FOR ROCK DRILLING BIT 审中-公开
    用于钻探钻头的工程轴承表面

    公开(公告)号:WO2010078182A3

    公开(公告)日:2010-08-26

    申请号:PCT/US2009069373

    申请日:2009-12-23

    CPC classification number: E21B10/22 Y10T29/49986

    Abstract: A drill bit bearing having a treated surface and method for preparing the same is provided. The method includes the steps of polishing at least one contacting surface of the bearing with an abrasive paste to a finish of less than about 10 µin Ra. The surface of the polishing instrument has a coating that includes a mixture of an epoxy cement and a polymer.

    Abstract translation: 提供了一种具有处理过的表面的钻头轴承及其制造方法。 该方法包括以下步骤:用研磨膏将轴承的至少一个接触表面抛光至小于约10μinRa的表面。 抛光工具的表面具有包含环氧树脂水泥和聚合物的混合物的涂层。

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