公开(公告)号：US20170343110A1

公开(公告)日：2017-11-30

申请号：US15680190

申请日：2017-08-17

Applicant: NOK CORPORATION

Inventor： Kazunari SEKI ,  Koji WATANABE

IPC: F16J15/24 ,  F16J15/44 ,  F16J15/16

CPC classification number: F16J15/24 ,  F16J15/164 ,  F16J15/441

Abstract: A sealing device includes a seal ring 200 made of resin which is in close contact with a side wall surface on a low pressure side of an annular groove 410, and slides against an inner peripheral surface of a shaft hole in a housing 500 through which a shaft 400 is inserted. A metal spring 300 presses the seal ring 200 toward an outer peripheral surface side, wherein a concave portion 220 is formed on an outer peripheral surface of the seal ring 200 which extends from an end portion on a high pressure side of the outer peripheral surface to a position which does not reach an end portion on a low pressure side of the outer peripheral surface, and introduces a fluid from the high pressure side.

公开(公告)号：US20150362074A1

公开(公告)日：2015-12-17

申请号：US14764858

申请日：2014-02-19

Applicant: NOK CORPORATION

Inventor： Kazunari SEKI ,  Koji WATANABE

IPC: F16J15/24 ,  F16J15/16

CPC classification number: F16J15/24 ,  F16J15/164 ,  F16J15/441

Abstract: Provided is a sealing device that is capable of exhibiting a sealing function even in a condition in which a fluid pressure is low while suppressing its sliding torque. A sealing device 100 is characterized by including: a seal ring 200 made of resin which is in close contact with a side wall surface on a low pressure side of an annular groove 410, and slides against an inner peripheral surface of a shaft hole in a housing 500 through which a shaft 400 is inserted; and a metal spring 300 which is provided along an inner peripheral surface of the seal ring 200 in a state in which a gap is formed between the metal spring 300 and a groove bottom surface of the annular groove 410, and presses the seal ring 200 toward an outer peripheral surface side, wherein a concave portion 220 is formed on an outer peripheral surface of the seal ring 200 which extends from an end portion on a high pressure side of the outer peripheral surface to a position which does not reach an end portion on a low pressure side of the outer peripheral surface, and introduces a fluid from the high pressure side.

Abstract translation: 提供即使在流体压力低的条件下也能够抑制其滑动转矩的情况下也能够表现出密封功能的密封装置。 密封装置100的特征在于包括：与环状槽410的低压侧的侧壁面紧密接触的由树脂制成的密封环200，并且在密封环200的轴孔的内周面上滑动 壳体500，轴400穿过该壳体500插入; 以及在金属弹簧300与环状槽410的槽底面之间形成间隙的状态下沿着密封环200的内周面设置的金属弹簧300，将密封环200朝向 外周面侧，在密封环200的外周面上形成凹部220，该外周面从外周面的高压侧的端部延伸到不到达端部的位置 外周面的低压侧，从高压侧引入流体。

公开(公告)号：US20210140545A1

公开(公告)日：2021-05-13

申请号：US16621341

申请日：2018-06-27

Applicant: NOK CORPORATION

Inventor： Yusuke YOSHIDA ,  Koji WATANABE

IPC: F16J15/3284

Abstract: A seal ring capable of stabilizing sealing performance while reducing rotation torque. A seal ring 100 has a plurality of first dynamic pressure generation groove 131 and a plurality of second dynamic pressure generation groove 132 on an outer peripheral surface thereof with intervals in the circumferential direction, the plurality of first dynamic pressure generation groove 131 extending from a position close to a first side surface 100A with respect to the center of width in an axial direction to the first side surface 100A and configured to generate dynamic pressure with relative rotation between a housing and the seal ring 100, and the plurality of second dynamic pressure generation groove 132 extending from a position close to a second side surface 100B with respect to the center of width in the axial direction to the second side surface 100B and configured to generate dynamic pressure with the relative rotation between the housing and the seal ring 100.

公开(公告)号：US20160116066A1

公开(公告)日：2016-04-28

申请号：US14895100

申请日：2014-05-26

Applicant: NOK CORPORATION

Inventor： Koji WATANABE ,  Kazunari SEKI

IPC: F16J15/16

CPC classification number: F16J15/164 ,  F16J9/14 ,  F16J15/441 ,  F16J15/443

Abstract: A seal ring (100) makes contact with a low-pressure-side (L) side wall surface of an annular groove (510) and slides against an inner circumferential surface of a shaft hole of a housing (600) through which a shaft (500) is inserted. The seal ring includes a pair of concave portions (130) extending in a circumferential direction on an outer surface, wherein a distance between a side surface on one side of a convex portion (120) that is disposed between the pair of concave portions (130) and a side surface on another side of the seal ring (100), and a distance between a side surface on another side of the convex portion (120) and a side surface on one side of the seal ring (100) are set to be shorter than a distance between an inner circumferential surface of the seal ring and an outer circumferential surface of the convex portion (120).

Abstract translation: 密封环（100）与环状槽（510）的低压侧（L）侧壁面接触，并抵靠壳体（600）的轴孔的内周面滑动，轴 500）。 密封环包括在外表面上沿圆周方向延伸的一对凹部（130），其中设置在一对凹部（130）之间的凸部（120）的一侧的侧表面之间的距离 ）和所述密封环（100）的另一侧的侧面，并且所述凸部（120）的另一侧的侧面与所述密封环（100）的一侧的侧面之间的距离设定为 比密封环的内周面和凸部（120）的外周面之间的距离短。

公开(公告)号：US20200300370A1

公开(公告)日：2020-09-24

申请号：US16896316

申请日：2020-06-09

Applicant: NOK CORPORATION

Inventor： Yusuke YOSHIDA ,  Koji WATANABE

IPC: F16J15/44 ,  F16J15/16

Abstract: The seal ring is annular around an axis x and includes an annular outer peripheral surface facing an outer periphery side, and a plurality of recessed parts. The recessed parts are formed in such a way as to be spaced apart from each other in a circumferential direction and are recessed from the outer peripheral surface toward an inner periphery side. The recessed parts expand, in the axis x direction, from one side surface to a position which does not reach another side surface. The outer peripheral surface includes a annular contact surface between the another side surface and the position, and rib surfaces respectively between mutually neighboring recessed parts in the circumferential direction. Each of the rib surfaces extends between the one side surface and the position in the axis x direction.

公开(公告)号：US20170138483A1

公开(公告)日：2017-05-18

申请号：US15318834

申请日：2015-06-02

Applicant: NOK CORPORATION

Inventor： Koji WATANABE ,  Katsuyoshi SAKUMA

IPC: F16J15/34

CPC classification number: F16J15/3464 ,  F16J15/164 ,  F16J15/3208 ,  F16J15/3252 ,  F16J15/3268 ,  F16J15/3496 ,  F16J15/441

Abstract: A sealing device seals an annular gap between a shaft and a housing, and includes a first annular member 200 provided with a first cylindrical part 201 that is secured to an outer circumferential surface of the shaft 20, and a first flange 202 extending radially outward from the first cylindrical part 201; a second annular member 300 provided with a second cylindrical part 301 that is secured to an outer circumferential surface of the first cylindrical part 201, and a second flange 302 extending radially outward from the second cylindrical part 301; and an endless resin sealing ring 400 disposed between the first flange 202 and the second flange 302, the sealing ring providing a seal between itself and a shaft hole in the housing 30, and between itself and one of the first flange 202 and the second flange 302 on a low pressure side.

公开(公告)号：US20240405350A1

公开(公告)日：2024-12-05

申请号：US18691342

申请日：2022-08-05

Applicant: NOK CORPORATION

Inventor： Motohiro NAGASAWA ,  Koji WATANABE ,  Katsuyoshi SAKUMA

IPC: H01M50/325 ,  F16K17/02 ,  H01M50/308

Abstract: A pressure-regulating valve for a power storage module includes a case having a recessed part, and a through-hole formed in a bottom portion of the recessed part, a valve body positioned in the recessed part and capable of opening and closing the through-hole by elasticity, and a plug body that closes the recessed part, and the case and the plug body are attachably and detachably fixed.

公开(公告)号：US20190178382A1

公开(公告)日：2019-06-13

申请号：US16300550

申请日：2017-05-12

Applicant: NOK CORPORATION

Inventor： Koji WATANABE

IPC: F16J15/16 ,  F16J15/44 ,  F16J15/3272 ,  F16J15/34

Abstract: A seal ring capable of performing a sealing function even in a state where the fluid pressure is low. The seal ring includes a seal ring main body 100 made of resin, and an auxiliary seal ring 200 made of rubbery elastic material disposed on an outer peripheral surface of the seal ring main body 100 at a position with the largest diameter. When the fluid pressure is not applied, the outer diameter of the auxiliary seal ring 200 is larger than the inner diameter of an inner peripheral surface of a shaft hole of the housing through which the shaft is inserted.