JPH0341285U

JPH0341285U -

Info

Publication number: JPH0341285U
Application number: JP10116289U
Authority: JP
Priority date: 1989-08-31
Filing date: 1989-08-31
Publication date: 1991-04-19

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る電磁弁の概略
縦断面図、第２図は第１図の浮動軸受の概略斜視
図、第３図は本考案と従来の電磁弁のプランジヤ
部に作用する粘性力の状態を比較して示しており
、同図ａは本考案の概略構成図、同図ｂは従来例
の概略構成図、第４図は本考案と従来の電磁弁の
制御特性を比較して示したグラフ、第５図は従来
の電磁弁の概略縦断面図、第６図は第５図の電磁
弁を用いた圧力制御系の回路構成図である。符号の説明、１……電磁弁、２……ソレノイド
、３……弁箱、４……ケーシング、５……コイル
、６……センタポスト、７……プランジヤ挿入穴
、８……弁室、９……プランジヤ、９１……先端
部、１０……弁座、１１……流路、１２……スプ
リング、２０……浮動軸受、２１……〓間、Ｏ…
…圧油。 Fig. 1 is a schematic vertical cross-sectional view of a solenoid valve according to an embodiment of the present invention, Fig. 2 is a schematic perspective view of the floating bearing shown in Fig. 1, and Fig. 3 is a schematic longitudinal sectional view of a solenoid valve according to an embodiment of the present invention. The states of the acting viscous force are compared and shown. Figure a is a schematic diagram of the present invention, Figure b is a schematic diagram of the conventional example, and Figure 4 shows the control characteristics of the present invention and the conventional solenoid valve. FIG. 5 is a schematic longitudinal sectional view of a conventional solenoid valve, and FIG. 6 is a circuit configuration diagram of a pressure control system using the solenoid valve of FIG. Explanation of symbols, 1... Solenoid valve, 2... Solenoid, 3... Valve box, 4... Casing, 5... Coil, 6... Center post, 7... Plunger insertion hole, 8... Valve chamber, 9... Plunger, 91... Tip, 10... Valve seat, 11... Channel, 12... Spring, 20... Floating bearing, 21... Between, O...
...Pressure oil.

Claims

[Scope of Claim for Utility Model Registration] A solenoid valve that controls the opening and closing of a valve by reciprocating a plunger inserted into a plunger insertion hole in a solenoid using the electromagnetic attraction force of the solenoid, comprising: plunger insertion of the solenoid; A solenoid valve characterized in that a floating bearing for guiding the reciprocating movement of the plunger is provided in the hole, and the floating bearing is movable in the direction of the reciprocating movement of the plunger.