公开(公告)号：US10465804B2

公开(公告)日：2019-11-05

申请号：US15320942

申请日：2015-06-24

Applicant: KITZ CORPORATION

Inventor： Osamu Watanabe ,  Tomoya Yamasaki

IPC: F16K5/06 ,  F17C5/00 ,  F17C13/04 ,  B23P15/00

Abstract: A structure and method for fastening a ball seat for a ball valve, a trunnion ball valve, and a hydrogen station using the ball valve, in which a stepped part is positioned medially in each of inner and outer peripheral surfaces of a resin-made annular seat body, with a seat part on a tip side and a holding part on a rear end side; an attachment groove defined by inner and outer cylinders having a ring-shaped swaging edge part at a tip of a seat retainer; the holding part being attached to the attachment groove; and the swaging edge part of the inner and outer cylinders being in contact with and fixed by being swaged to the stepped part so as to cause the seat part to protrude farther than a swaging position.

公开(公告)号：US09879790B2

公开(公告)日：2018-01-30

申请号：US14913547

申请日：2014-08-28

Applicant: KITZ CORPORATION

Inventor： Takeshi Gomi ,  Ronald Guenther ,  Osamu Watanabe

IPC: F16K5/06 ,  F16K5/20 ,  H01M8/04082

CPC classification number: F16K5/201 ,  F16K5/0605 ,  F16K5/0626 ,  F16K5/0694 ,  H01M8/04201

Abstract: A high-pressure trunnion ball valve which is particularly suitable for a high-pressure fluid, the high-pressure trunnion ball valve is composed of a ball (10) rotatably provided in a body (3) having a lid member (2), a seat retainer (11) seal-connected to the ball, a spring member (12) applying an elastic force to the seat retainer to a seal side, and a seal member (13) attached to an outer circumferential face of the seat retainer. An upper stem (50) and a lower stem (51) having the same diameter are provided on an upper side and a lower side of the ball in an extending manner, respectively, to constitute a ball member (52), shaft-attaching seal mechanisms (20) having the same structure are attached to the upper and lower stems at symmetrical positions regarding the ball to achieve a balance structure, thereby avoiding thrust loads.

公开(公告)号：US09546736B2

公开(公告)日：2017-01-17

申请号：US14378722

申请日：2013-02-28

Applicant: KITZ CORPORATION

Inventor： Osamu Watanabe ,  Tetsuya Watanabe

IPC: F16K5/06 ,  F16K5/22 ,  F16K27/06 ,  F16K31/60 ,  F16K5/20 ,  F16K25/00

CPC classification number: F16K5/0663 ,  F16K5/0636 ,  F16K5/0647 ,  F16K5/0657 ,  F16K5/0668 ,  F16K5/201 ,  F16K5/227 ,  F16K25/005 ,  F16K27/067 ,  F16K31/60

Abstract: A trunnion ball valve includes a ball provided inside a body main unit in a freely rotatable manner; and a seal mechanism provided on positions on both sides of the ball so as to be in seal contact with the ball, the seal mechanism including: a seat retainer having a sealing surface that is to be in seal contact with a ball surface of the ball; a spring member provided for applying elastic force on a sealing surface side; and a sealing member provided on an outer surface of the seat retainer.

Abstract translation: 耳轴球阀包括以自由旋转的方式设置在主体主体内的球; 以及密封机构，其设置在与所述球体密封接触的球的两侧的位置上，所述密封机构包括：座椅保持器，其具有与所述球的球面密封接触的密封面 ; 设置用于在密封面侧施加弹性力的弹簧构件; 以及设置在所述座椅保持器的外表面上的密封构件。

公开(公告)号：US12072064B2

公开(公告)日：2024-08-27

申请号：US17442892

申请日：2020-03-26

Applicant: KITZ CORPORATION

Inventor： Osamu Watanabe

IPC: F17C5/06 ,  F17C13/02

CPC classification number: F17C5/06 ,  F17C13/025 ,  F17C2227/043 ,  F17C2265/065

Abstract: Provided are a method for filling hydrogen gas into banks, configured so as to typically maintain high-pressure banks, thereby reducing time delays for supplying hydrogen gas to a second and subsequent FCV; and a hydrogen station. The hydrogen gas filling method and the hydrogen station are characterized by: filling hydrogen gas from a compressor into a bank (target bank) of which pressure is below the preset predetermined pressure; and if there are a plurality of other target banks, selecting as the filling bank a bank that may reach the filled state the fastest by being filled with hydrogen gas from the compressor.

公开(公告)号：US12135098B2

公开(公告)日：2024-11-05

申请号：US17801748

申请日：2021-02-25

Applicant: KITZ CORPORATION

Inventor： Masazumi Funato ,  Mitsuru Hosokawa ,  Tetsuya Watanabe ,  Osamu Watanabe ,  Hisashi Shimizu

IPC: F16K41/04 ,  F16K5/06 ,  F16K5/20 ,  F16K27/06 ,  F16K27/10 ,  F16K31/04 ,  F16K41/00 ,  F16K49/00

Abstract: A valve (10) in accordance with an embodiment of the present invention includes a body (1) having a space in which a stem (3) and a ball (4) are housed, wherein an inner lid body (60) fixing the ball (4) in the space liquid-tightly partitions the space into a part in which the stem (3) is housed and a part in which the ball (4) is housed.