JPH0333276U

JPH0333276U -

Info

Publication number: JPH0333276U
Application number: JP9400089U
Authority: JP
Priority date: 1989-08-10
Filing date: 1989-08-10
Publication date: 1991-04-02

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の縦断面図、及び該
実施例が適用された吸排気弁制御装置の一例を示
す図である。第２図は本考案の一実施例の要部を
示す縦断面図である。第３，４図は本考案の一実
施例の動作を説明するための、その弁体部分を示
す縦断面図である。第５図は従来の吸排気弁制御
装置の一例を示す図である。第６，７図は従来の
流体制御用ソレノイド弁の一例の動作を説明する
ための、その弁体部分を示す縦断面図である。第
８図はメインオリフイスの開口面積とソレノイド
弁の応答速度との関係を示すグラフである。２……コイル、６……コイルばね、３１Ｃ……
流体排出口、４１……第１シリンダ、４１Ａ……
パイロツトオリフイス、４２……第２シリンダ、
４２Ａ……流体流入口、４２Ｂ……流体吐出口、
４３……メインバルブ、４３Ａ……メインオリフ
イス、４４……コイルばね、４５……パイロツト
バルブ、４５Ａ……流体通路、４８……アジヤス
トねじ、４９……ロツクナツト、５０，５１……
シート部、２００……ソレノイド弁、Ｆ……メイ
ンバルブ前室、Ｒ……メインバルブ背圧室。 FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and a diagram showing an example of an intake/exhaust valve control device to which the embodiment is applied. FIG. 2 is a longitudinal sectional view showing the main parts of an embodiment of the present invention. 3 and 4 are longitudinal sectional views showing the valve body portion for explaining the operation of one embodiment of the present invention. FIG. 5 is a diagram showing an example of a conventional intake/exhaust valve control device. 6 and 7 are longitudinal sectional views showing the valve body portion of an example of a conventional solenoid valve for fluid control, for explaining the operation thereof. FIG. 8 is a graph showing the relationship between the opening area of the main orifice and the response speed of the solenoid valve. 2...Coil, 6...Coil spring, 31C...
Fluid outlet, 41...first cylinder, 41A...
Pilot orifice, 42...second cylinder,
42A...Fluid inlet, 42B...Fluid outlet,
43... Main valve, 43A... Main orifice, 44... Coil spring, 45... Pilot valve, 45A... Fluid passage, 48... Adjustment screw, 49... Lock nut, 50, 51...
Seat portion, 200... Solenoid valve, F... Main valve front chamber, R... Main valve back pressure chamber.

Claims

[Claims for Utility Model Registration] (1) A first cylinder having a pilot orifice, a pilot valve disposed within the first cylinder, and a solenoid device that drives the pilot valve and closes or opens the pilot orifice. A second cylinder having a fluid inlet and a fluid outlet and disposed around the first cylinder; A second cylinder disposed between the first cylinder and the second cylinder and having a main orifice at its tip. A fluid control solenoid valve comprising a main valve and a spring means for biasing the main valve and closing the fluid inlet, wherein when the main valve closes the fluid inlet, the distal end portion of the main valve is closed. and a blind member provided in the second cylinder so that the solenoid valve is disposed inside or near the main orifice. (2) The solenoid valve for fluid control according to claim 1, wherein the blind member is configured to be movable in a sliding direction of the main valve.