JPS61103674U

JPS61103674U -

Info

Publication number: JPS61103674U
Application number: JP18863684U
Authority: JP
Priority date: 1984-12-11
Filing date: 1984-12-11
Publication date: 1986-07-01

Description

[Brief explanation of the drawing]

第１図〜第３図は本考案による電磁レリーフ弁
の一実施例を示し、第１図は全体の縦断面図、第
２図は要部の拡大縦断面図、第３図は第２図の
―断面図である。符号の説明、２０……バルブ本体、２２……ス
プール、２４……弁座部材、２４ａ……レリーフ
通路、２４ｂ……弁座面、２４ｃ……開口縁、２
５……ボール弁、２６……ボールシート、２７…
…スプリング、３５……ソレノイド、Ｙ……円錐
面。 Figures 1 to 3 show an embodiment of the electromagnetic relief valve according to the present invention, in which Figure 1 is an overall vertical sectional view, Figure 2 is an enlarged vertical sectional view of main parts, and Figure 3 is an enlarged vertical sectional view of the main parts. It is a cross-sectional view of. Explanation of symbols, 20...Valve body, 22...Spool, 24...Valve seat member, 24a...Relief passage, 24b...Valve seat surface, 24c...Opening edge, 2
5...Ball valve, 26...Ball seat, 27...
...Spring, 35...Solenoid, Y...Conical surface.

Claims

[Scope of utility model registration request]

The spool is slidably fitted into the valve body,
A valve seat member having a valve seat surface opening a relief passage into which pressure fluid is introduced is provided in the valve body opposite to one end of the spool, and a ball seat that contacts a ball valve that opens and closes the relief passage and the spool are connected to each other. A spring that urges the ball valve toward the valve seat surface is interposed between one end and the spring is applied in accordance with the amount of movement of the spool by a control current applied to a solenoid provided in the valve body. In the electromagnetic relief valve configured to vary the force, the ball seat is such that when the ball valve is at its maximum lift, most of the ball seat is in contact with the opening edge of the relief passage to the valve seat surface and the ball valve. An electromagnetic relief valve characterized by having a shape located inside a conical surface.