公开(公告)号：US20200224787A1

公开(公告)日：2020-07-16

申请号：US16700146

申请日：2019-12-02

Applicant: CKD CORPORATION

Inventor： Tatsuhito AOYAMA

IPC: F16K31/143

Abstract: A combination valve includes a valve seat, a diaphragm valve element, a pilot system to automatically bring the diaphragm valve element into or out of contact with the valve seat by use of air pressure, and a manual system to hold the diaphragm valve element in contact with the valve seat even while air pressure is supplied. In the combination valve, a piston rod is provided such that, when the handle is turned to move the manual stem in a seating direction while the diaphragm valve element and the valve seat are separated from each other, the piston rod moves in the seating direction relative to a first piston and a second piston that are pushed by the air pressure in a separating direction.

公开(公告)号：US20250027570A1

公开(公告)日：2025-01-23

申请号：US18766737

申请日：2024-07-09

Applicant: CKD CORPORATION

Inventor： Tatsuhito AOYAMA ,  Shinya Takahashi

IPC: F16K7/17 ,  F16K25/00 ,  F16K31/122

Abstract: A fluid control valve includes a pressing member, a diaphragm member, and a valve seat. The pressing member presses and deforms the diaphragm member into contact with the valve seat. The valve seat includes a first annular valve seat made of fluorine resin and a second annular valve seat made of heat-resistant resin, which are arranged concentrically adjacent to each other. The heat-resistant resin has a higher deflection temperature under load at 1.82 MPa than the fluorine resin, measured according to ASTM D-648.

公开(公告)号：US20180094740A1

公开(公告)日：2018-04-05

申请号：US15566985

申请日：2017-01-27

Applicant: CKD CORPORATION

Inventor： Tatsuhito AOYAMA

IPC: F16K31/02 ,  F16K27/00

CPC classification number: F16K31/02 ,  F16K27/00 ,  F16K27/0236 ,  F16K31/0655

Abstract: A mounting structure of a solenoid valve for operation on a cylinder provided with an operation port, the solenoid valve being configured to control operation fluid to be supplied to the cylinder, includes a mounting block attached with the solenoid valve, and a mounting screw threadedly engaged with internal threads of the operation port to mount the mounting block on the cylinder. The mounting block includes an inlet passage for supplying the operation fluid to the solenoid valve, an outlet passage for flowing the operation fluid controlled by the solenoid valve, and a through hole through which the mounting screw is inserted and with which the outlet passage is communicated. The mounting screw includes an inner passage to communicate the operation port with the outlet passage. Seal members seal between an inner wall of the through hole and the mounting screw.

公开(公告)号：US20240376997A1

公开(公告)日：2024-11-14

申请号：US18681626

申请日：2023-03-07

Applicant: CKD CORPORATION

Inventor： Yutaka INOUE ,  Tatsuhito AOYAMA

IPC: F16K31/528 ,  F16K31/60 ,  F16K35/06

Abstract: A valve stem is disposed so as to be capable of moving linearly reciprocally in a case connected to a valve section for opening and closing a flow channel. The valve stem is urged toward the valve section by a spring. A manual lever is rotatably supported on the upper end of the valve stem. The valve stem is divided into a first rod part connected to the manual lever and a second rod part positioned on the valve section side, a connecting pin fixed to the first rod part is inserted through an elongated elongated hole formed in the second rod part along an axial direction, and the first rod part is able to move in the range of the elongated hole relative to the second rod section.

公开(公告)号：US20190128433A1

公开(公告)日：2019-05-02

申请号：US16090900

申请日：2017-05-18

Applicant: CKD CORPORATION

Inventor： Tatsuhito AOYAMA

IPC: F16K7/16 ,  F16K31/143 ,  F16K47/08

Abstract: A fluid control valve for controlling high-temperature fluid includes: a valve body including a valve chamber communicating with first and second flow passages, and a valve seat provided in the valve chamber; a metal diaphragm that contacts with and separates from the valve seat; a stem that moves the metal diaphragm up and down; and an actuator that drives the stem. The first flow passage includes a first orifice having a diameter set to 50% or less of a diameter of the second flow passage. Alternatively, the second flow passage includes a second orifice having a diameter set to 50% or less of the diameter of the second flow passage. The diameter of the second flow passage is calculated by converting a cylindrical flow passage area defined between the valve seat and the metal diaphragm when separated from the valve seat into a diameter of a circular flow passage.

公开(公告)号：US20150354723A1

公开(公告)日：2015-12-10

申请号：US14713391

申请日：2015-05-15

Applicant: CKD CORPORATION

Inventor： Tatsuhito AOYAMA

IPC: F16K31/60 ,  F16K35/02

CPC classification number: F16K35/025 ,  F16K7/16 ,  F16K31/508

Abstract: A manual opening/closing valve includes a manual handle, a valve element, a valve seat, an input port, and an output port. The manual opening/closing valve is arranged to move the valve element into contact with the valve seat when the manual handle is rotated, so that the valve is placed in a cutoff state in which communication between the input port and the output port is cut off, wherein the cutoff state includes a first cutoff state established when the manual handle is rotated to a first angle and a second cutoff state established when the manual handle is rotated to a second angle at which rotation operation force to the manual handle is converted to a cutoff load to be applied to the valve seat.

Abstract translation: 手动打开/关闭阀包括手动手柄，阀元件，阀座，输入端口和输出端口。 手动打开/关闭阀被设置为当手动旋转时将阀元件移动到与阀座接触，使得阀处于截止状态，在该截止状态下，输入端口和输出端口之间的连通被切断 ，其中所述切断状态包括当手动手柄旋转到第一角度时建立的第一切断状态，以及当手动手柄旋转到手动手柄的旋转操作力被转换为第二角度的第二角度时建立的第二切断状态 施加到阀座的截止负载。