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    Sealing device
    1.
    发明授权
    Sealing device 有权
    密封装置

    公开(公告)号：US09388705B2

    公开(公告)日：2016-07-12

    申请号：US14384504

    申请日：2013-03-11

    Applicant: NOK CORPORATION

    Inventor： Kazunari Seki ,  Koji Watanabe ,  Wataru Tokunaga ,  Yuki Takao ,  Fangman Xu ,  Hirotaka Mizuta ,  Keisuke Nakashima ,  Takuya Igawa ,  Yusuke Yoshida ,  Hideya Watanabe ,  Yosuke Kondo

    IPC: F16J15/34 ,  F01D11/00 ,  F16J9/20 ,  F16J15/16 ,  F16J15/18 ,  F16J15/32 ,  F16J15/44

    CPC classification number: F01D11/003 ,  F16J9/20 ,  F16J15/164 ,  F16J15/18 ,  F16J15/181 ,  F16J15/3208 ,  F16J15/3244 ,  F16J15/442

    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.

    Abstract translation: 密封装置包括：外周环2000，其与低压侧（L）的环状槽4100的侧壁面接触，并且相对于壳体5000中的轴孔的内周面滑动 轴4000插入其中。 由与外周环2000的内周面接触的橡胶状弹性体和环状槽4100的槽底面分别形成的内周环3000。 外周环2000在其外周面形成有从高压侧（H）的端部延伸到未到达低压侧的端部的位置的凹部2220，以便引入 来自高压侧的流体。

    Seal ring
    2.
    发明授权
    Seal ring 有权

    公开(公告)号：US11614169B2

    公开(公告)日：2023-03-28

    申请号：US16965162

    申请日：2019-08-09

    Applicant: NOK CORPORATION

    Inventor： Yusuke Yoshida

    IPC: F16J15/32 ,  F16J15/3272 ,  F16J15/3204 ,  F16J15/44 ,  F16J15/3216

    Abstract: A seal ring has, on an outer peripheral surface side thereof, a pair of recessed parts 140 extending in a circumferential direction on both sides in a width direction thereof to form a projection part 120 between the pair of recessed parts 140, and has a plurality of ribs 130 connected to the projection part 120 and extending to lateral surfaces of the seal ring at intervals in the circumferential direction inside the pair of recessed parts 140, and a plurality of ribs 130 arranged on a sealed region side among the plurality of ribs 130 have lateral-wall surfaces on an upstream side in a relative rotation direction of a housing with respect to a shaft, each of the lateral-wall surfaces having inclined surfaces inclined from the upstream side to a downstream side in the relative rotation direction of the housing from the projection part 120 toward the lateral surfaces of the seal ring.

    Sealing device and sealing structure
    6.
    发明授权
    Sealing device and sealing structure 有权
    密封装置和密封结构

    公开(公告)号：US09157530B2

    公开(公告)日：2015-10-13

    申请号：US14384501

    申请日：2013-03-11

    Applicant: NOK CORPORATION

    Inventor： Kazunari Seki ,  Koji Watanabe ,  Wataru Tokunaga ,  Yuki Takao ,  Fangman Xu ,  Hirotaka Mizuta ,  Keisuke Nakashima ,  Takuya Igawa ,  Yusuke Yoshida ,  Hideya Watanabe ,  Yosuke Kondo

    IPC: F16J15/34 ,  F16J15/16 ,  F16J15/32 ,  F16J15/44 ,  F16J15/18

    CPC classification number: F01D11/003 ,  F16J9/20 ,  F16J15/164 ,  F16J15/18 ,  F16J15/181 ,  F16J15/3208 ,  F16J15/3244 ,  F16J15/442

    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.

    Abstract translation: 密封装置包括：外周环2000，其与低压侧（L）的环状槽4100的侧壁面接触，并且相对于壳体5000的轴孔的内周面滑动 轴4000插入其中。 由与外周环2000的内周面接触的橡胶状弹性体和环状槽4100的槽底面分别形成的内周环3000。 外周环2000在其外周面形成有从高压侧（H）的端部延伸到未到达低压侧的端部的位置的凹部2220，以便引入 来自高压侧的流体。

    Seal ring
    9.
    发明授权
    Seal ring 有权

    公开(公告)号：US12104698B2

    公开(公告)日：2024-10-01

    申请号：US17623715

    申请日：2020-05-13

    Applicant: NOK CORPORATION

    Inventor： Hideya Watanabe ,  Yusuke Yoshida

    IPC: F16J15/18 ,  F16J15/3272 ,  F16J15/10 ,  F16J15/16

    CPC classification number: F16J15/18 ,  F16J15/3272 ,  F16J15/104 ,  F16J15/164

    Abstract: A circular annular seal ring made from a resin is adapted to be disposed between an outer member and an inner member that rotate relative to each other. The seal ring is disposed in a circumferential groove of the outer member or the inner member to isolate a liquid space from an external space. The seal ring is formed from an elongated and arcuate rod to define a circle by joining ends of the rod, and has a junction formed from the ends. The seal ring has a radial thickness gradually decreasing from two points that are apart from the junction toward the junction. The points are separated from the junction by an angle of not less than 60 degrees and not more than 150 degrees about a central axis of the circle.

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