JPH0369770U - - Google Patents
Info
- Publication number
- JPH0369770U JPH0369770U JP12949389U JP12949389U JPH0369770U JP H0369770 U JPH0369770 U JP H0369770U JP 12949389 U JP12949389 U JP 12949389U JP 12949389 U JP12949389 U JP 12949389U JP H0369770 U JPH0369770 U JP H0369770U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- valve
- back chamber
- inflow
- pilot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Details Of Valves (AREA)
- Fluid-Driven Valves (AREA)
Description
添付図面は本考案の実施例を示し、第１図は第
１実施例の閉弁状態の断面図、第２図はその開弁
状態の断面図であり、第３図は第２実施例を閉弁
状態の断面図である。
１……ボデイ、４……流入室、５……流出室、
６……主弁口、７……ダイヤフラム（可動仕切体
）、８……主弁体、１０……背室、１２……パイ
ロツト弁孔、１３……ブリード孔、１４……パイ
ロツト弁体、２０，２３……開弁付勢用圧縮コイ
ルばね。
The accompanying drawings show embodiments of the present invention; FIG. 1 is a sectional view of the first embodiment in the closed state, FIG. 2 is a sectional view of the valve in the open state, and FIG. 3 is a sectional view of the second embodiment. It is a sectional view of a valve closed state. 1...Body, 4...Inflow chamber, 5...Outflow chamber,
6... Main valve port, 7... Diaphragm (movable partition), 8... Main valve body, 10... Back chamber, 12... Pilot valve hole, 13... Bleed hole, 14... Pilot valve body, 20, 23... Compression coil spring for urging valve opening.
Claims (1)
入室と流出室を形成するとともに、前記主弁口を
開閉する主弁体を備えた可動仕切体により前記流
入室との間を仕切られた背室を形成し、前記可動
仕切体に、前記流入室内の流体を前記背室内に流
入させるブリード孔と該ブリード孔よりも大きい
流量で前記背室内の流体を前記流出室に流出させ
るパイロツト弁孔を形成し、閉弁時には、前記背
室側に設けたパイロツト弁体により前記パイロツ
ト弁孔を閉塞しつつ前記可動仕切体を押圧して前
記主弁口を閉塞し、開弁時には、前記パイロツト
弁体を退避させて前記パイロツト弁孔を開放する
とともに前記可動仕切体への押圧を解除した状態
において、流入量よりも流出量の多い前記背室内
が減圧するために該背室と前記流入室との間に生
じる圧力差により前記可動仕切体に前記主弁口を
開放する方向の移動力を付与するようにしたパイ
ロツト式電磁弁において、 前記可動仕切体に前記主弁口を開放する方向へ
の移動力を付与する開弁付勢用ばねを設けたこと
を特徴とするパイロツト式電磁弁。[Claims for Utility Model Registration] An inflow chamber and an outflow chamber that communicate with each other via a main valve port are formed in the body, and the inflow A back chamber partitioned from the chamber is formed, and the movable partition includes a bleed hole that allows fluid in the inflow chamber to flow into the back chamber, and a bleed hole that allows the fluid in the back chamber to flow into the back chamber at a flow rate larger than that of the bleed hole. A pilot valve hole is formed to allow the flow to flow into the outflow chamber, and when the valve is closed, the pilot valve body provided on the back chamber side closes the pilot valve hole and presses the movable partition body to close the main valve port. When the valve is opened, the pilot valve body is retracted to open the pilot valve hole and the pressure on the movable partition is released, so that the pressure in the back chamber, where the outflow volume is larger than the inflow volume, is reduced. A pilot type solenoid valve that applies a moving force in a direction to open the main valve port to the movable partition due to a pressure difference generated between the back chamber and the inflow chamber, A pilot type solenoid valve characterized by being provided with a valve opening biasing spring that applies a moving force in the direction of opening the valve port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12949389U JPH0369770U (en) | 1989-11-06 | 1989-11-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12949389U JPH0369770U (en) | 1989-11-06 | 1989-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0369770U true JPH0369770U (en) | 1991-07-11 |
Family
ID=31677119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12949389U Pending JPH0369770U (en) | 1989-11-06 | 1989-11-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0369770U (en) |
-
1989
- 1989-11-06 JP JP12949389U patent/JPH0369770U/ja active Pending
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