公开(公告)号：US20220397203A1

公开(公告)日：2022-12-15

申请号：US17778397

申请日：2020-11-04

Applicant: FUJIKIN INCORPORATED

Inventor： Keisuke Ishibashi ,  Tadayuki Yakushijin ,  Ryo Tangotani ,  Tadanobu Yoshida ,  Michio Yamaji ,  Shoichi Uruno

IPC: F16K7/17 ,  F16K7/12 ,  F16K31/122

Abstract: Provided is an actuator including a ball-type thrust amplifier therein that controls a valve in which a high-pressure fluid flows, and having less wear between members and a long lifespan. This actuator for a valve includes a thrust amplification mechanism therein, in which the thrust amplification mechanism includes a disk, a ball presser, a stem, and a plurality of balls that are sandwiched by and in contact with an upper surface of the disk, a tapered surface of the ball presser, and a tapered surface of the stem and disposed to move outward as the stem moves downward, the surfaces of the parts constituting the thrust amplification mechanism are coated with grease containing an additive, and the additive of the grease includes at least chloroalkane.

公开(公告)号：US11035493B2

公开(公告)日：2021-06-15

申请号：US16497469

申请日：2018-03-27

Applicant: FUJIKIN INCORPORATED

Inventor： Keisuke Ishibashi ,  Michio Yamaji ,  Tadayuki Yakushijin ,  Shunji Obara ,  Keigo Kobayashi

IPC: F16K31/122 ,  F16K7/16 ,  F16K7/18 ,  F16K31/44 ,  F15B15/10 ,  F15B15/14 ,  F16K3/34

Abstract: Provided is a small-sized controller capable of precisely controlling a flow rate of a high-pressure fluid. Between a working shaft of a drive device and a valve stem, a power transmission device is disposed to amplify a force acting on the working shaft and transmit the resultant force to the valve stem. A diaphragm as a valve element is made of metal and is deformable to: a state where a fluid passage is fully closed; a state where the fluid passage is fully open; or a state where the fluid passage is partially open. When the fluid passage is partially open, on the basis of the flow rate of a fluid flowing through fluid passages, the drive device finely adjusts the position of the working shaft such that the flow rate is constant.

公开(公告)号：US20190162337A1

公开(公告)日：2019-05-30

申请号：US16321166

申请日：2017-07-25

Applicant: FUJIKIN INCORPORATED

Inventor： Keisuke Ishibashi ,  Takayasu Nakahama ,  Toshinori Ochiai ,  Michio Yamaji ,  Tadayuki Yakushijin ,  Takashi Funakoshi ,  Kunihiko Daido ,  Hideyuki Miyagawa

IPC: F16L19/02 ,  F16L23/18 ,  F16L17/06

Abstract: Provided herein is a pipe joint of a relatively small joint diameter for use under ultrahigh pressure conditions. The pipe joint includes first and second joint members having mutually communicating fluid passages; and a gasket interposed between abutting end surfaces of the first and second joint members. The first and second joint members have ring-shaped seal projections formed at the abutting end surfaces thereof. The pipe joint satisfies a coefficient F of 0.4 or less in the following formula (1). F=(D32−D12)/(D42−D22),   Formula (1): where D1 represents the inner diameter of the first and second joint members, D2 represents the inner diameter of the gasket, D3 represents the diameter of the seal projections, and D4 represents the outer diameter of the gasket.

公开(公告)号：US20190093774A1

公开(公告)日：2019-03-28

申请号：US16087265

申请日：2018-01-30

Applicant: FUJIKIN INCORPORATED

Inventor： Keisuke Ishibashi ,  Tadayuki Yakushijin ,  Ryohei Fujimoto ,  Norifumi Suntou ,  Michio Yamaji ,  Yasuhiro Yoshikane

IPC: F16K11/044 ,  F16K1/34

Abstract: Provided is a switching valve for use in an analyzer module for switching flow passages of fluids, in which the manufacturing cost is reduced and the life is increased. The valve element is provided with a lower contact portion that comes into close contact with a lower valve seat disposed at a valve body when a valve is closed, and with an upper contact portion that comes into close contact with an upper valve seat disposed at a counter plate when the valve is open. The counter plate has a first recess that is open downward and a second recess that is open toward the first recess and has a smaller horizontal cross-sectional area than that of the first recess, and the upper valve seat is press-fitted into the second recess.

公开(公告)号：US09983051B2

公开(公告)日：2018-05-29

申请号：US14889388

申请日：2014-04-25

Applicant: FUJIKIN INCORPORATED

Inventor： Masaaki Nagase ,  Ryousuke Dohi ,  Nobukazu Ikeda ,  Kouji Nishino ,  Michio Yamaji ,  Tadayuki Yakushijin

IPC: G02B27/02 ,  G01J1/04 ,  G01J1/42 ,  G02B1/02 ,  G01N21/03 ,  G01N21/05 ,  G02B7/00 ,  G01J5/08 ,  G01J3/02 ,  G01N21/33 ,  G01J5/00

CPC classification number: G01J1/0403 ,  G01J1/0407 ,  G01J1/42 ,  G01J3/0205 ,  G01J5/0014 ,  G01J5/0875 ,  G01N21/0303 ,  G01N21/05 ,  G01N21/33 ,  G02B1/02 ,  G02B7/007 ,  G02B27/022 ,  G02B27/028

Abstract: A fastening structure of a brittle-fracturable panel material includes a first fastening flange, a second fastening flange, and a light transmission window panel made of a brittle-fracturable panel material, wherein the light transmission window panel is nipped between the first fastening flange and the second fastening flange, and both fastening flanges are air-tightly fitted and fastened.

公开(公告)号：US20170234439A1

公开(公告)日：2017-08-17

申请号：US15502850

申请日：2015-12-14

Applicant: FUJIKIN INCORPORATED

Inventor： Yasumasa Yanagida ,  Michio Yamaji ,  Tadayuki Yakushijin ,  Keisuke Ishibashi ,  Tsuyoshi Tanikawa

IPC: F16K1/52 ,  F16K31/122

CPC classification number: F16K1/523 ,  F16K7/17 ,  F16K31/122 ,  F16K31/1225 ,  F16K31/508

Abstract: Provided is a fluid controller in which reduction of the accuracy caused by the loosening of a screw portion and reduction of the durability caused by torsional stress are prevented. A stem vertical-movement-amount adjustment means 11 is provided with: a handle 41 which has a female screw 41b on an inner periphery thereof and which is rotatably supported by a casing 4; a movable body 42 in which a male screw 46b is provided on an outer periphery thereof and is screwed into the inner periphery of the handle 41; and a guide means 43 which prevents rotation of the movable body 42 relative to the casing 4 and which enables vertical movement of the movable body 42.

公开(公告)号：US20170045164A1

公开(公告)日：2017-02-16

申请号：US15213703

申请日：2016-07-19

Applicant: FUJIKIN INCORPORATED

Inventor： Tsutomu Shinohara ,  Takahiro Matsuda ,  Tomohiro Nakata ,  Michio Yamaji

IPC: F16L19/00 ,  F16B43/00

CPC classification number: F16L19/00 ,  F16B5/0241 ,  F16B5/0258 ,  F16B43/001 ,  F16K27/003

Abstract: Provided are a fixing device for a lower-stage member which facilitates a leveling operation for making upper surfaces of lower-stage members coplanar, and can further enhance a vibration absorbing effect generated by an elastic member, and a fluid control device which includes the fixing device. A fixing device for a lower-stage member is configured such that respective lower-stage members (2) are fixed once and, thereafter, a desired lower-stage member (2) is moved upwardly against an elastic force (21) so as to finely adjust positions of upper surfaces of a plurality of lower-stage members (2). The elastic member (21) is formed of an annular body made of rubber or a synthetic resin. A cutout (21a, 21b) which imparts the elastic deformation by bending when a force in the vertical direction is applied to the elastic member (21) is formed on an upper portion and a lower portion of an inner peripheral surface of the elastic member (21).

Abstract translation: 本发明提供一种用于下段构件的定影装置，其用于使下级构件的上表面共面的调平操作，并且可以进一步增强由弹性构件产生的振动吸收效果;以及流体控制装置，其包括固定 设备。 下部构件的固定装置被构造成使得相应的下级构件（2）固定一次，然后，期望的下级构件（2）抵抗弹性力（21）向上移动，以便 微调多个下段构件（2）的上表面的位置。 弹性部件（21）由橡胶或合成树脂制的环状体形成。 在弹性构件（21）的内周面的上部和下部形成有向垂直方向施加力的弯曲时的弹性变形的切口（21a，21b）（ 21）。

公开(公告)号：US20160369903A1

公开(公告)日：2016-12-22

申请号：US14898888

申请日：2014-11-12

Applicant: FUJIKIN INCORPORATED

Inventor： Taichi Kitano ,  Tsutomu Shinohara ,  Tadayuki Yakushijin ,  Tomohiro Nakata ,  Tsuyoshi Tanikawa ,  Michio Yamaji

IPC: F16K7/14 ,  F16K27/00

CPC classification number: F16K7/14 ,  F15B13/0817 ,  F16K27/003

Abstract: As passages forming a main gas passage, each of the passage blocks 3 has a first inverted-V passage, a first outlet passage communicating between the apex of the first inverted-V passage and an outlet of a first on-off valve. As passages forming a vent gas passage, each of the passage blocks 3 has a second inverted-V passage and a second outlet passage communicating between the apex of the second inverted-V passage and an outlet of a second on-off valve. As passages forming a first sub-gas inflow passage, each of the passage blocks has a first inlet passage leading to an inlet of the first on-off valve and a common inlet passage. As passages forming a second sub-gas inflow passage, each of the passage blocks has a second inlet passage leading to an inlet of the second on-off valve and a communication path continued to the common inlet passage.

Abstract translation: 作为形成主气体通道的通道，每个通道块3具有第一倒V通道，第一出口通道在第一倒V通道的顶点和第一开关阀的出口之间连通。 作为形成通气气体通道的通道，每个通道块3具有第二倒V通道和第二出口通道，第二出口通道在第二倒V通道的顶点和第二开关阀的出口之间连通。 作为形成第一副气体流入通道的通道，每个通道块具有通向第一开关阀的入口的第一入口通道和公共入口通道。 作为形成第二副气体流入通道的通道，每个通道块具有通向第二开关阀的入口的第二入口通道和连续到公共入口通道的连通路径。

公开(公告)号：US20210018103A1

公开(公告)日：2021-01-21

申请号：US17043025

申请日：2019-09-17

Applicant: FUJIKIN INCORPORATED

Inventor： Tadayuki Yakushijin ,  Keisuke Ishibashi ,  Michio Yamaji ,  Akihiro Harada

IPC: F16K7/16 ,  F16K7/17

Abstract: A diaphragm valve configured to allow for adjustment of a Cv value during assembly of the diaphragm valve is provided. A valve body, a diaphragm, an actuator, a bonnet, a stem, and a diaphragm holder are provided, the bonnet includes a through hole coaxial with the stem and formed with a female thread, the cylindrical body formed with a male thread on an outer surface is screwed into the through hole in engagement with the female thread, the stem is inserted into the cylindrical body, a diaphragm side end surface of the cylindrical body protrudes from an opening surface of the through hole on the diaphragm side toward a diaphragm, a stem side end surface of the diaphragm holder comes into abutment with the diaphragm side end surface of the cylindrical body, so that a position of the abutted surfaces in an axial direction of the stem is adjusted by a degree of adjustment between the male thread and the female thread.

公开(公告)号：US10711902B2

公开(公告)日：2020-07-14

申请号：US16086421

申请日：2018-01-25

Applicant: FUJIKIN INCORPORATED

Inventor： Tsuyoshi Tanikawa ,  Keisuke Ishibashi ,  Tadayuki Yakushijin ,  Michio Yamaji ,  Ryousuke Dohi ,  Yoshinori Shimomura ,  Takashi Funakoshi

IPC: F16K11/048 ,  F16K31/122 ,  F16K1/36 ,  F16K41/10 ,  F16K1/38 ,  F16K3/02

Abstract: A valve element movement mechanism includes: a first valve stem having one end portion to which a first valve element to close and open an area between one of the large diameter portion and the small diameter portion is fixed; a second valve stem having one end portion to which a second valve element to close and open an area between the other of the large diameter portions and the small diameter portion is fixed; a first bellows having one end portion fixed to a first bellows flange and the other end portion fixed to the first valve element; a second bellows having one end portion fixed to a second bellows flange and the other end portion fixed to the second valve element; a frame disposed outside the main passage; and an actuator to move the frame in the directions in which valve elements are closed and opened.