JPH0335382U

JPH0335382U -

Info

Publication number: JPH0335382U
Application number: JP9640189U
Authority: JP
Priority date: 1989-08-18
Filing date: 1989-08-18
Publication date: 1991-04-05

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例に係る電磁弁を示
す縦断面図、第２図は第１図に示す電磁弁が適用
されるアンチロツクブレーキシステムの油圧系統
を示す全体構成図、第３図は第１図に示す電磁弁
の一部を拡大して示した拡大断面図、第４図は第
１図の−線に沿う断面図、第５図は第３図の
−矢視図、第６図は第３図の−線に沿う
断面図、第７図は第３図の−線に沿う断面図
、第８図は本考案の第２実施例に係る電磁弁の要
部を示す縦断面図である。１００，１０１……インバルブ（第１開閉弁）
、１０２，１０３……アウトバルブ（第２開閉弁
）、２０２……センタコア（コア）、２０５，２
０６……プランジヤ（弁体部）、２１１，２１２
……ボール弁体（弁体）、２１３，２１３ｂ……
プツシユロツド（ロツド）、２１５……弁座部材
、２１６……弁座部材（第２開閉弁の弁座部材）
、２２０，２２１……励磁コイル、３００……ポ
ート部材、３０１……フイルタ。 FIG. 1 is a longitudinal sectional view showing a solenoid valve according to a first embodiment of the present invention, FIG. 2 is an overall configuration diagram showing a hydraulic system of an anti-lock brake system to which the solenoid valve shown in FIG. 1 is applied, and FIG. 3 is an enlarged sectional view of a part of the electromagnetic valve shown in FIG. 1, FIG. 4 is a sectional view taken along the - line in FIG. 1, and FIG. 5 is a view taken in the direction of the - arrow in FIG. 3. , FIG. 6 is a sectional view taken along the - line in FIG. 3, FIG. 7 is a sectional view taken along the - line in FIG. FIG. 100, 101...In-valve (first opening/closing valve)
, 102, 103... Out valve (second opening/closing valve), 202... Center core (core), 205, 2
06... Plunger (valve body part), 211, 212
...Ball valve body (valve body), 213, 213b...
Push rod (rod), 215... Valve seat member, 216... Valve seat member (valve seat member of second on-off valve)
, 220, 221... Excitation coil, 300... Port member, 301... Filter.

Claims

[Claims for Utility Model Registration] (1) A plunger is sucked toward the core when an excitation coil is energized on both sides of the core with through holes, thereby pressing the valve body against the valve seat member. A normally closed first on-off valve that opens when the excitation coil is released, and a normally closed first on-off valve that closes when the plunger is attracted toward the core when the excitation coil is energized, and the valve body is pressed against the valve seat member. In the electromagnetic valve in which a second on-off valve and a second on-off valve are vertically arranged, a valve seat member of the second on-off valve and a port member forming a fluid passage are press-fitted into the through hole of the core, and 2. A solenoid valve characterized in that a filter is sandwiched between a valve seat member of the on-off valve and the port member. (2) When the excitation coil is energized, the tip of the rod protruding from the plunger of the first on-off valve comes into contact with the end of the port member, and the plunger of the first on-off valve does not come into contact with the core. The electromagnetic valve according to claim 1, characterized in that: