公开(公告)号：US20240271720A1

公开(公告)日：2024-08-15

申请号：US18643545

申请日：2024-04-23

Applicant: KITZ CORPORATION

Inventor： Masazumi FUNATO ,  Mitsuru HOSOKAWA ,  Tetsuya WATANABE ,  Osamu WATANABE ,  Hisashi SHIMUZU

IPC: F16K41/04 ,  F16K27/06 ,  F16K41/00

CPC classification number: F16K41/046 ,  F16K27/067 ,  F16K41/006

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.

公开(公告)号：US20240060566A1

公开(公告)日：2024-02-22

申请号：US18269843

申请日：2021-12-28

Applicant: KITZ CORPORATION

Inventor： Masazumi FUNATO ,  Tetsuya WATANABE ,  Mitsuru HOSOKAWA

IPC: F16K1/226 ,  F16K1/42

CPC classification number: F16K1/2263 ,  F16K1/42

Abstract: Realized is a sealing member which exhibits excellent sealing properties even at a low temperature and a high pressure. A sealing member (100) includes: a first pressing part (110) that presses a first side part of a gap by pressing from a lateral direction; a second pressing part (120) that is pressed against a second side part of the gap by the pressing from the lateral direction; and a part (122) that induces deformation of the sealing member (100) such that the sealing member (100) is strained toward the second side part by the pressing from the lateral direction.

公开(公告)号：US20230079603A1

公开(公告)日：2023-03-16

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 ,  F16K27/06 ,  F16K41/00

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.

公开(公告)号：US20160319940A1

公开(公告)日：2016-11-03

申请号：US15108685

申请日：2015-08-27

Applicant: KITZ CORPORATION

Inventor： Masazumi FUNATO ,  Masahiro KAZAMA

IPC: F16K5/06

CPC classification number: F16K5/06 ,  F16K5/0678 ,  F16K5/202

Abstract: A trunnion-type ball valve including a seat retainer (14) attaching a ball seat(s) to at least one side of a ball (12) having a through hole (12a) provided in a body (11). The ball is turnably provided via a stem (13), and the ball seat is attached in a protrusion-prevented and free state in an attachment groove formed in the seat retainer. An excessive pressure due to an abnormal pressure rise in a cavity upon full close or upon full open is configured to be relieved into a flow channel via a communication part provided between an inner peripheral surface of the ball seat and the attachment groove by moving the seat retainer in a direction opposite to the ball by self-tension utilizing the pressure and pushing-out the ball seat to a ball-side by the excessive pressure flowed into a rear-surface side of the ball seat in the attachment groove.

Abstract translation: 一种耳轴式球阀，其包括将球座附接到具有设置在主体（11）中的通孔（12a）的球（12）的至少一侧的座椅保持器（14）。 该球通过杆（13）可转动地设置，并且球座以形成在座椅保持器中的安装槽中以突起防止和自由的状态附接。 由于在完全关闭或全开时空腔中的异常压力升高引起的过大的压力被配置成经由设置在球座的内周表面和安装槽之间的连通部件移动到流动通道中， 通过利用压力自动张紧的方向保持在与球相反的方向上，并通过流入到安装槽中的球座的后表面侧的过大的压力将球座推出到球侧。

公开(公告)号：US20240068577A1

公开(公告)日：2024-02-29

申请号：US18269845

申请日：2021-12-28

Applicant: KITZ CORPORATION

Inventor： Masazumi FUNATO ,  Tetsuya WATANABE ,  Mitsuru HOSOKAWA

IPC: F16K5/20 ,  F16K5/06

CPC classification number: F16K5/201 ,  F16K5/0605 ,  F16K5/0636

Abstract: A valve (10) of an embodiment of the present invention has a tapered section (55) on an opening side of a depression (51a) of a body (1). When a projection (4b) of a ball (4) is inserted into the depression (51a), a part of a tip end edge of the projection (4b) is brought into contact with the tapered section (55), and the tapered section (55) guides the projection (4b) so that the entire circumference of the tip end edge of the projection (4b) is located on a bottom side with respect to the tapered section (55).

公开(公告)号：US20190154161A1

公开(公告)日：2019-05-23

申请号：US15571362

申请日：2016-05-13

Applicant: KITZ CORPORATION

Inventor： Masahiro KAZAMA ,  Masazumi FUNATO

IPC: F16K5/06 ,  F16K5/20 ,  F16K27/06

Abstract: A trunnion-type ball valve, a valve seal structure, and a valve packing in which, a seal surface pressure of a tip outer peripheral region is improved. A ball (3) provided inside a body (2) is rotatably provided via upper and lower stems (4 and 5) and is sealed with a ball seat (6). The trunnion-type ball valve has a packing attached between an outer periphery step part provided at a rear part of the ball seat and the body and a pressing mechanism by which the packing is pressed to a ball direction, and is provided with a contact surface to be contacted with a step part surface of the outer periphery step part on a tip outer diameter side of the packing and a space provided between the packing and the step part surface of the outer periphery step part on a tip inner diameter side of the packing.