JPH0326880U

JPH0326880U -

Info

Publication number: JPH0326880U
Application number: JP8695189U
Authority: JP
Priority date: 1989-07-25
Filing date: 1989-07-25
Publication date: 1991-03-19

Description

[Brief explanation of drawings]

図面は本考案の一実施例を示すものであり、第
１図は閉弁時の全体縦断面図、第２図は第１図の
−線断面図、第３図は開弁時の第１図に対応
した要部縦断面図である。４……電磁式制御弁、８……入口ポート、９…
…出口ポート、１０……弁ハウジング、１１……
主弁体、１２……パイロツト弁、２２……ガイド
筒としての内ガイド筒、２５……背圧室、２７…
…パイロツト弁孔、２８……パイロツト弁体、３
４……絞り、３７……逃げ溝、４３……ソレノイ
ド、Ｒ……リザーバ。 The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional view of the whole when the valve is closed, Fig. 2 is a cross-sectional view taken along the line - - of Fig. 1, and Fig. 3 is a cross-sectional view of the first embodiment when the valve is open. FIG. 4...Solenoid control valve, 8...Inlet port, 9...
...Outlet port, 10... Valve housing, 11...
Main valve body, 12...Pilot valve, 22...Inner guide cylinder as a guide cylinder, 25...Back pressure chamber, 27...
...Pilot valve hole, 28...Pilot valve body, 3
4... Throttle, 37... Relief groove, 43... Solenoid, R... Reservoir.

Claims

[Scope of utility model registration request]

The valve housing in which an inlet port and an outlet port are provided has a main valve body that can switch communication and isolation between both ports, and a main valve body that faces the inlet port in order to apply fluid pressure in the inlet port in the valve opening direction. A back pressure chamber that is slidably fitted while being spring-biased in the valve-closing direction, and is formed with the back side of the main valve body facing in order to exert fluid pressure that biases the main valve body in the valve-closing direction. and the reservoir, there is a pilot valve hole bored in the end of the guide cylinder provided in the valve housing facing the back surface of the main valve body, and a pilot valve hole that opens in response to energization and demagnetization of the solenoid. An electromagnetic control valve in which a pilot valve is provided with a pilot valve body slidably fitted into a guide cylinder to open and close the valve, and a throttle is provided between the inlet port and the back pressure chamber, 1. An electromagnetic control valve characterized in that an escape groove connecting a pilot valve hole and a back pressure chamber is provided at an end of a guide cylinder facing a back surface of a main valve body.