JPH0247486U

JPH0247486U -

Info

Publication number: JPH0247486U
Application number: JP12683488U
Authority: JP
Priority date: 1988-09-27
Filing date: 1988-09-27
Publication date: 1990-03-30

Description

[Brief explanation of the drawing]

第１図は本考案の実施例にかかる電磁弁の断面
図、第２図は同電磁弁の一部拡大図、第３図は第
２図―線断面図、第４図は従来の電磁弁を示
す断面図、第５図イ，ロ，ハは同電磁弁の開弁、
中間、閉弁の各状態の一部拡大図、第６図は第５
図イの―線断面図である。２１……弁本体、２２……弁座、２３……弁体
、２４……弁体ガイド部材、２５……耐圧筒、２
６……プランジヤ室、２７……プランジヤ、２９
……ソレノイド、３１……連通溝。 Fig. 1 is a sectional view of a solenoid valve according to an embodiment of the present invention, Fig. 2 is a partially enlarged view of the same solenoid valve, Fig. 3 is a sectional view taken along the line of Fig. 2, and Fig. 4 is a conventional solenoid valve. Figure 5 A, B, and C are cross-sectional views showing the opening of the solenoid valve;
A partially enlarged view of the intermediate and closed valve states, Figure 6 is the 5th
FIG. 21...Valve body, 22...Valve seat, 23...Valve body, 24...Valve body guide member, 25...Pressure cylinder, 2
6...Plunger chamber, 27...Plunger, 29
...Solenoid, 31...Communication groove.

Claims

[Claims for Utility Model Registration] 1. A pressure cylinder on the outer periphery of which a solenoid is disposed and a valve body guide member that guides the movement of the valve body are arranged facing each other in the axial direction, and a plunger chamber is formed between them. In the plunger chamber, the plunger is driven by the solenoid to stroke the valve body, and a gap is formed between the end face of the plunger and one wall of the plunger chamber to determine the valve lift when the valve is fully open and fully closed. In a solenoid valve, the solenoid valve is provided with a plurality of circumferential communication grooves on the outer circumferential surface of the plunger that allow fluid on the side compressed by the plunger in the plunger chamber to escape to the opposite side when the plunger is stroked. , the relationship between the total cross-sectional area _S1 of each of the communication grooves and the total area _S2 of the fluid inlet from the gap to each communication groove is such that _S1 < S in the valve fully open and fully closed states. ₂ A solenoid valve characterized in that it is configured to: 2. The electromagnetic valve according to claim 1, wherein each communication groove has a rectangular cross section that is elongated toward the center of the plunger.