公开(公告)号：US20130142675A1

公开(公告)日：2013-06-06

申请号：US13756361

申请日：2013-01-31

Applicant: CKD CORPORATION

Inventor： Tatsushi NABEI ,  Yukie NAKAMURA

IPC: F04B27/00

CPC classification number: F16K31/046 ,  F16K31/508 ,  F16K41/103

Abstract: In a fluid control device, a valve body is prevented from being pressed forcefully against a valve seat or the like, and an excessive load is prevented from acting on a motor. A flow rate adjustment device includes a first engagement portion, and a second engagement portion that is capable of moving relative to the first engagement portion and transmitting and receiving rotary force. The flow rate adjustment device includes a valve body that adjusts an opening of a flow passage, and a rod that is coupled to the valve body. The flow rate adjustment device further includes a male screw portion and a female screw portion that are intermeshed so as to be fed relative to each other in the axial direction, a projecting portion that restricts movement of the second engagement portion, and a first cylinder that restricts movement of the rod.

Abstract translation: 在流体控制装置中，防止阀体被强制地压靠在阀座等上，并且防止过大的负载作用在电动机上。 流量调节装置包括第一接合部和能够相对于第一接合部移动并且发送和接收旋转力的第二接合部。 流量调节装置包括调节流路的开口的阀体和与阀体连结的杆。 流量调节装置还包括外螺纹部和内螺纹部，所述外螺纹部和内螺纹部相互相对于彼此沿轴向供给，限制第二接合部的移动的突出部和第一圆筒， 限制杆的运动。

公开(公告)号：US20180355983A1

公开(公告)日：2018-12-13

申请号：US16102754

申请日：2018-08-14

Applicant: CKD CORPORATION

Inventor： Tatsushi NABEI ,  Yukie NAKAMURA ,  Sayumi TAKANO

IPC: F16K7/17

CPC classification number: F16K7/17 ,  F16K7/12 ,  F16K7/16 ,  F16K15/148 ,  F16K25/00

Abstract: A diaphragm valve includes a first valve housing, a diaphragm, a drive member, and a second valve housing. The diaphragm has a second abutting surface opposed to a first abutting surface, and a sealing portion formed on a position surrounding a second abutting surface. The diaphragm has an elastic coupling portion that elastically deforms and couples the second abutting surface to the sealing portion to cause the second abutting surface to move to a side of the first valve housing with respect to the sealing portion. The elastic coupling portion has a concave curved surface having a curved surface shape that is concave to a side of the second valve housing. The second valve housing has a supporting portion having a second convex curved surface having a curved surface shape that is convex to a side of the elastic coupling portion on a position opposed to the concave curved surface.

公开(公告)号：US20210156483A1

公开(公告)日：2021-05-27

申请号：US17099336

申请日：2020-11-16

Applicant: CKD CORPORATION

Inventor： Kyomi YAMADA ,  Tatsushi NABEI

IPC: F16K1/42 ,  F16K7/16

Abstract: A regulator performing fluid control includes an annular protruding portion having a valve seat on its leading end and an annular diameter-decreasing surface formed by decreasing an inner diameter of the annular protruding portion toward a valve hole. The regulator includes a valve element provided with a contact surface to be in contact with the valve seat and a columnar step portion provided on an inner peripheral side of the valve seat protruding from the contact surface toward the valve hole, the step portion having a diameter larger than an inner diameter of the valve hole and being coaxially formed with the valve hole. An annular ridge is formed by an outer peripheral surface of the step portion intersecting an end face of the step portion on the valve-hole side with the annular diameter-decreasing surface to constitute a passage narrowing portion.

公开(公告)号：US20190257432A1

公开(公告)日：2019-08-22

申请号：US16309051

申请日：2017-06-19

Applicant: CKD CORPORATION

Inventor： Tatsushi NABEI ,  Michio MIYASHITA ,  Shinji ISHIKAWA ,  Fumihito TSUCHIYA

IPC: F16K1/36 ,  F16K31/122

Abstract: A fluid control valve and manufacturing method thereof, wherein, when a pressing force acts on the engagement surface between a diaphragm member and a valve seat-contacting member, the valve seat-contacting member is not displaced and no gap is formed. The diaphragm member made of a first fluorine-based resin material is provided with a diaphragm membrane and a rod-shaped part in the center of the diaphragm membrane. The valve seat-contacting member made of an injection-moldable second fluorine-based resin material is provided with a ring-shaped sealing surface and a recess on the opposite side from the ring-shaped sealing surface. The rod-shaped part is partly fitted into the recess. A ring-shaped recessed is formed on outer circumference of a portion of the rod-shaped part. A small diameter recess is formed on the inner circumference of the recess. The ring-shaped recess section and the small diameter recess adhere closely to form the engagement surface.