JPS6291079U

JPS6291079U -

Info

Publication number: JPS6291079U
Application number: JP18289985U
Authority: JP
Priority date: 1985-11-29
Filing date: 1985-11-29
Publication date: 1987-06-10

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図は電磁油
圧弁の断面図、第２図はスプール弁の原位置状態
を示す要部断面図、第３図は同作動位置状態を示
す要部断面図、第４図は比較例を示すスプール弁
の原位置状態を示す要部断面図である。１０……バルブ本体、１４……入口ポート、１
５……出口ポート、１７……スプール弁、１８…
…内穴、１９……第１絞り、２０……第２絞り、
２１……通孔、２２……オリフイス、２５……ス
プリング、３７……ヨーク、３９……ソレノイド
。 The drawings show an embodiment of the present invention, in which Fig. 1 is a sectional view of an electromagnetic hydraulic valve, Fig. 2 is a sectional view of the main part of the spool valve showing its original position, and Fig. 3 is a main part of the spool valve in its operating position. FIG. 4 is a cross-sectional view of a main part of a spool valve showing a comparative example in its original position. 10... Valve body, 14... Inlet port, 1
5... Outlet port, 17... Spool valve, 18...
...Inner hole, 19...First aperture, 20...Second aperture,
21...Through hole, 22...Orifice, 25...Spring, 37...Yoke, 39...Solenoid.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

バルブ本体に入口ポートと出口ポートとの２つ
のポートを有する内孔内に筒状のスプール弁を摺
動可能に嵌装し、前記入口ポートから流入する流
体を前記スプール弁の外周に形成した第１絞りと
通孔を介してスプール弁内穴開口端より出口ポー
トへ流し、スプール弁の外周に形成した第２絞り
を介して出口ポートに流す２分流構成とし、この
スプール弁を前記２つのポートを連通する開口方
向に付勢するスプリングと、制御電流に応じて前
記スプール弁を２つのポートの連通を閉止方向に
吸引するソレノイドとを備え、前記スプール弁の
内穴開口端にオリフイスを設けたことを特徴とす
る電磁油圧弁。 A cylindrical spool valve is slidably fitted into an inner hole having two ports, an inlet port and an outlet port, in a valve body, and a cylindrical spool valve is formed on the outer periphery of the spool valve to allow fluid to flow in from the inlet port. The spool valve has a two-part flow configuration in which the flow flows from the open end of the spool valve inner hole to the outlet port through a first restriction and a through hole, and flows to the outlet port through a second restriction formed on the outer periphery of the spool valve. and a solenoid that attracts the spool valve in the direction of closing the communication between the two ports in response to a control current, and an orifice is provided at the opening end of the inner hole of the spool valve. An electrohydraulic valve characterized by: