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：US20250132448A1

公开(公告)日：2025-04-24

申请号：US18689701

申请日：2022-08-04

Applicant: NOK CORPORATION

Inventor： Katsuyoshi SAKUMA ,  Motohiro NAGASAWA

IPC: H01M50/308 ,  H01M50/325

Abstract: A pressure-regulating valve for a power storage module is a pressure-regulating valve for a power storage module in which a case accommodating a valve body in a valve chamber is attached to a power storage device (10), and the case has a sealing surface that is provided with a sealing member and is to contact the power storage device, and an attaching portion attachable to the power storage device by moving along a predetermined slide direction along the sealing surface.

公开(公告)号：US20240274965A1

公开(公告)日：2024-08-15

申请号：US18284672

申请日：2022-01-06

Applicant: NOK CORPORATION

Inventor： Katsuyoshi SAKUMA ,  Yusei SHINCHI

IPC: H01M50/325 ,  H01M50/15

CPC classification number: H01M50/325 ,  H01M50/15

Abstract: A pressure regulating valve for a power storage module includes a housing having a housing main body with an opening and a recess formed in the inside and a cover body that closes the opening and a columnar valve element housed in the recess, wherein the housing main body has a pressure introduction passage having a pressure introducing part which is a columnar space passing through the housing main body, and a groove connected to the pressure introducing part and opens to a surface of the bottom, the valve element has a shorter axial length than the outer diameter and covers an aperture on the bottom side in the pressure introduction passage, the cover body has a protrusion in contact with an end face of the valve element that pressurizes the valve element, and the valve element airtightly closes the pressure introduction passage.

公开(公告)号：US20250105430A1

公开(公告)日：2025-03-27

申请号：US18730189

申请日：2022-11-01

Applicant: NOK CORPORATION

Inventor： Motohiro NAGASAWA ,  Katsuyoshi SAKUMA

IPC: H01M50/325 ,  H01M50/59

Abstract: A pressure regulating valve is attached to each of a plurality of power storage modules. The pressure regulating valve allows internal spaces of the power storage modules to be open, respectively, and has a short-circuit preventing structure for preventing an electrolytic solution coming outside of the power storage modules from causing a short circuit with another power storage module or a short circuit between other power storage modules.

公开(公告)号：US20240291097A1

公开(公告)日：2024-08-29

申请号：US18692642

申请日：2022-07-19

Applicant: NOK CORPORATION

Inventor： Katsuyoshi SAKUMA

IPC: H01M50/325

CPC classification number: H01M50/325

Abstract: A pressure adjustment valve that can be attached to a power storage module has: a plurality of valve body portions that are opened in accordance with a pressure in the power storage module, and release the pressure in the power storage module, each valve body portion having a discharging portion for releasing the pressure, an inside of each valve body portion being isolated from another adjacent valve body portion.

公开(公告)号：US20200032907A1

公开(公告)日：2020-01-30

申请号：US16491745

申请日：2018-02-19

Applicant: NOK CORPORATION

Inventor： Katsuyoshi SAKUMA

IPC: F16J15/18 ,  F16J15/3272

Abstract: A seal ring is provided in which a ring body configured to be mounted in a mounting groove provided in one of two members, for example, a rotary shaft and a housing, that are configured to be assembled together so as to be relatively displaceable with respect to each other, is provided with a contact portion that comes in contact with the other of the two members, and a cut portion separating the ring body at one position on the circumference of the ring body. In order to eliminate undercorrection of shape that occurs at a portion in the vicinity of the cut portion, thereby reducing the size of a gap that is formed between the seal ring and the mating component when the seal ring is mounted, a thinned structure is provided only at a portion in the vicinity of the cut portion in an outer surface of the ring body other than the contact portion.

公开(公告)号：US20180355980A1

公开(公告)日：2018-12-13

申请号：US15780351

申请日：2016-11-30

Applicant: NOK CORPORATION

Inventor： Katsuyoshi SAKUMA

IPC: F16J15/48 ,  F16J15/18

CPC classification number: F16J15/48 ,  F16J15/18

Abstract: A shaft and a sealing structure that can reduce the sliding resistance of a seal ring regardless of whether the side surface of the seal ring wears out over time. A shaft 200 rotates relative to a housing 300 and includes an annular groove 210 on an outer periphery side thereof, to which a resinous seal ring 400 that seals an annular gap between the shaft 200 and the housing 300 to maintain pressure of sealed fluid, is attached. In the shaft 200, a side wall surface 213 of the annular groove 210 on which the seal ring 400 slides is made of metal, and dynamic pressure generation grooves 220 that generate dynamic pressure by the sealed fluid guided during the relative rotation are formed on the side wall surface 213.

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.