JPH022574U

JPH022574U -

Info

Publication number: JPH022574U
Application number: JP7959488U
Authority: JP
Priority date: 1988-06-16
Filing date: 1988-06-16
Publication date: 1990-01-09

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の断面図、第２図は
二次圧を制御する場合のブロツク図、第３図は負
圧解除用の逆止弁を設けた場合の部分拡大断面図
である。１：ボデイ、２：隔壁、３：流入口、４：一次
室、５：流出口、６：二次室、８：弁口、８ａ，
８ｂ：（弁口８の）開口、９，１０：弁座、１１
：第１開閉弁、２１：第２開閉弁、１２，２２：
ソレノイド、１３，２３：コイル、１４，２４：
プランジヤ、１５，２５：弁杆、１６，２６：弁
体、１７，２７：圧縮コイルばね、３０：ダイヤ
フラム、３１：圧力室、３２：連通孔、４２：逆
止弁。 Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a block diagram when controlling secondary pressure, and Fig. 3 is a partially enlarged sectional view when a check valve for releasing negative pressure is provided. It is. 1: Body, 2: Partition, 3: Inlet, 4: Primary chamber, 5: Outlet, 6: Secondary chamber, 8: Valve port, 8a,
8b: Opening (of valve port 8), 9, 10: Valve seat, 11
: 1st on-off valve, 21: 2nd on-off valve, 12, 22:
Solenoid, 13, 23: Coil, 14, 24:
Plunger, 15, 25: Valve rod, 16, 26: Valve body, 17, 27: Compression coil spring, 30: Diaphragm, 31: Pressure chamber, 32: Communication hole, 42: Check valve.

Claims

[Claims for Utility Model Registration] 1. A primary chamber communicating with the inflow port and a secondary chamber communicating with the outflow port are defined in the body by a partition wall, and the partition wall is provided with a gas flow direction perpendicular to the flow direction of the gas in the two chambers. one valve port penetrating in the direction, a valve seat is formed in an opening on the primary chamber side and an opening on the secondary chamber side of the valve port, and both the primary chamber and the secondary chamber A valve body is provided which opens and closes the valve port by moving toward and away from each of the valve seats, and the valve body is biased in the valve closing direction by a spring force, and the plunger is attracted by the excitation of a coil. A diaphragm connected to the plunger is connected to the plunger of the solenoid via a valve rod so as to be attracted against the spring force, and a diaphragm connected to the plunger is stretched in the secondary chamber to create a pressure between the solenoid and the solenoid. 1. A valve seat facing type electromagnetic valve, characterized in that a chamber is defined, and a communication hole is formed in the valve rod to communicate the pressure chamber and the primary chamber when the valve is closed. 2. The valve seat according to claim 1 as a utility model registration, characterized in that a check valve is provided between the secondary chamber and the valve port to allow gas in the secondary chamber to flow into the valve port side. Opposed solenoid valve.