JPS61200760U

JPS61200760U -

Info

Publication number: JPS61200760U
Application number: JP8531585U
Authority: JP
Priority date: 1985-06-06
Filing date: 1985-06-06
Publication date: 1986-12-16
Also published as: JPH0410141Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例である電磁液圧制
御弁の正面断面図である。第２図および第３図は
、前記電磁液圧制御弁のそれぞれ別の応用例を示
す系統図である。第４図は本考案の別の実施例に
用いられる焼結片の内部構造を概念的に示す断面
図である。１０：ハウジング、｛３２：電磁方向切換弁、
３４：電磁流量制御弁｝（電磁液圧制御弁）、３
６，３８：ボール、４０：プランジヤ、４２，４
４：弁座、４６：圧縮コイルスプリング、６０：
ピストン、６４：ソレノイド（第一ソレノイド）
、７０：ボール、７２：プランジヤ、７４：ピス
トン、７６：弁座、７８：圧縮コイルスプリング
、８２：ソレノイド（第二ソレノイド）、８６：
絞り通路、９０：液通路（非絞り通路）、９２：
焼結片、１００：マスタシリンダ、１０２：ブレ
ーキシリンダ、１１２：リザーバ、１１４：ポン
プ、１２０：タンク、１２２：ポンプ、１２６：
第一レギユレータ、１２８：第二レギユレータ、
１３０：パワー液圧室、１６８：目の細かい部分
、１６９：目の粗い部分、１７０：焼結片。 FIG. 1 is a front sectional view of an electromagnetic hydraulic pressure control valve according to an embodiment of the present invention. FIGS. 2 and 3 are system diagrams showing different application examples of the electromagnetic hydraulic pressure control valve. FIG. 4 is a sectional view conceptually showing the internal structure of a sintered piece used in another embodiment of the present invention. 10: Housing, {32: Electromagnetic directional control valve,
34: Electromagnetic flow control valve} (electromagnetic hydraulic pressure control valve), 3
6,38: Ball, 40: Plunger, 42,4
4: Valve seat, 46: Compression coil spring, 60:
Piston, 64: Solenoid (first solenoid)
, 70: Ball, 72: Plunger, 74: Piston, 76: Valve seat, 78: Compression coil spring, 82: Solenoid (second solenoid), 86:
Restricted passage, 90: Liquid passage (non-restricted passage), 92:
Sintered piece, 100: Master cylinder, 102: Brake cylinder, 112: Reservoir, 114: Pump, 120: Tank, 122: Pump, 126:
First regulator, 128: Second regulator,
130: Power hydraulic chamber, 168: Fine mesh portion, 169: Coarse mesh portion, 170: Sintered piece.

Claims

[Claims for Utility Model Registration] (1) An electromagnetic directional control valve that selectively communicates the hydraulic chamber of a controlled device such as a brake cylinder with a hydraulic pressure source and a tank, and a throttle passage and a non-throttle passage in parallel. an electromagnetic flow control valve that is provided between the electromagnetic directional switching valve and the hydraulic pressure chamber and controls the flow rate of the hydraulic fluid in two stages, large and small, by opening and closing the non-restricted passage; In an electromagnetic hydraulic pressure control valve that is installed in an anti-skid device of a hydraulic brake device and that rapidly increases, rapidly decreases, gradually increases, or gradually decreases the hydraulic pressure in the hydraulic pressure chamber according to changes in the slip rate of the wheels, the non-restricted passage and An electromagnetic hydraulic pressure control valve for an anti-skid device, characterized in that the throttle passage is formed by filling the through holes formed in parallel with a porous material. (2) The porous body has a multilayer structure in which a coarse part is provided on both sides of a fine part, and the through hole is filled so that the working fluid flows in a direction substantially perpendicular to the layer. Scope of claim for utility model registration No. 1
An electromagnetic hydraulic pressure control valve for an anti-skid device as described in . (3) The electromagnetic hydraulic control valve for an anti-skid device according to claim 1 or 2, wherein the porous body is a sintered alloy.