JPS62167977U

JPS62167977U -

Info

Publication number: JPS62167977U
Application number: JP5656686U
Authority: JP
Priority date: 1986-04-14
Filing date: 1986-04-14
Publication date: 1987-10-24

Description

[Brief explanation of the drawing]

第１図はこの考案の１実施例を示す縦断面図、
第２図は従来の圧力制御弁の１例を示す縦断面図
である。２０……本体、２３……内孔、２４……第１通
路、２５……第２通路、２６……第１弁座、２７
……中間体、２８……親弁、２９……第２弁座、
３１……室、３２……絞り孔、３４……中間室、
３５……ばね、３６……チヨーク、３８……パイ
ロツト弁。 FIG. 1 is a longitudinal sectional view showing one embodiment of this invention.
FIG. 2 is a longitudinal sectional view showing an example of a conventional pressure control valve. 20... Body, 23... Inner hole, 24... First passage, 25... Second passage, 26... First valve seat, 27
... intermediate body, 28 ... main valve, 29 ... second valve seat,
31...chamber, 32...diaphragm hole, 34...intermediate chamber,
35... Spring, 36... Chiyork, 38... Pilot valve.

Claims

[Scope of utility model registration request]

A first valve seat is provided between a first passage and a second passage communicating with the body internal bore, and an intermediate body is slidably accommodated in the body internal bore so as to open and close the valve hole of the first valve seat. At the same time, a parent valve for opening and closing the valve hole, which has a second valve seat provided to communicate the inner hole of the main body and the first passage, is slidably housed in the intermediate body by pressing it in the valve closing direction with a spring. , the back side of the parent valve is formed into an intermediate chamber communicating with the first passage via a choke provided on the parent valve, a pilot valve is provided to control the pressure in the intermediate chamber, and the effective diameter of the first valve seat is set to the second passage. In the pressure control valve, the outer diameter of the intermediate body is formed to be larger than the effective diameter of the first valve seat, and the outer diameter of the intermediate body is larger than the effective diameter of the first valve seat. A pressure control valve that has a throttle hole in its intermediate body that connects it to a passage.