公开(公告)号：US20210388919A1

公开(公告)日：2021-12-16

申请号：US17286991

申请日：2019-10-21

Applicant: FUJIKIN INCORPORATED

Inventor： Takahiro MATSUDA ,  Kenji AIKAWA ,  Akihiro HARADA ,  Kazunari WATANABE ,  Tomohiro NAKATA ,  Tsutomu SHINOHARA

IPC: F16K31/50 ,  F16K27/00 ,  F16K7/14 ,  F16K31/122

Abstract: A valve device includes: a valve body which is accommodated in an accommodation recess having a circular cross-sectional shape, and has a first port and a second port in a bottom surface; and a bonnet nut which has an outer screw portion screwed with an inner screw portion formed on an inner periphery of the accommodation recess to press the valve body toward the bottom of the accommodation recess to fix the valve body onto a flow path block. The valve body has an outer peripheral surface portion fitted to an inner peripheral surface portion of the accommodation recess of the flow path block. A convex portion for defining an orientation of the valve body about an axis with respect to the flow path block is formed on the outer peripheral surface portion.

公开(公告)号：US20200292093A1

公开(公告)日：2020-09-17

申请号：US16613572

申请日：2018-05-25

Applicant: FUJIKIN INCORPORATED

Inventor： Kazunari WATANABE ,  Tomohiro NAKATA ,  Tsutomu SHINOHARA

IPC: F16K27/02 ,  F16K27/00

Abstract: A valve device is made more compact and has improved yield strength against a bending moment. The problem is solved by a valve device including a valve body having a block shape, a casing having a tubular shape, incorporating a drive mechanism that drives a valve element that opens and closes the flow path, connected to the valve body, and extending upward from an upper surface of the valve body, and a protective member that comes into contact with the casing having a tubular shape and the valve body, and is for suppressing a stress concentration that occurs between a casing member positioned on a base portion of a casing and the valve body when a bending moment acts as an external force on the casing.