JPH01154335U

JPH01154335U -

Info

Publication number: JPH01154335U
Application number: JP5090688U
Authority: JP
Priority date: 1988-04-18
Filing date: 1988-04-18
Publication date: 1989-10-24

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す縦断面図、
第２図は従来の流量制御弁装置の一例を示す概略
構成図である。１……電磁比例制御弁、２……補助弁、１１…
…制御弁本体、１５……流入ポート、１６……吐
出ポート、１８……スプール、２１……戻しばね
、３５……ソレノイド、３６……可動鉄心、４１
……補助弁本体、４４……流入ポート、４５……
吐出ポート、４９……スプール、５７……軸体（
接点）、６０……コイルばね（接触部）。 FIG. 1 is a longitudinal sectional view showing an embodiment of this invention.
FIG. 2 is a schematic configuration diagram showing an example of a conventional flow control valve device. 1... Solenoid proportional control valve, 2... Auxiliary valve, 11...
... Control valve body, 15 ... Inflow port, 16 ... Discharge port, 18 ... Spool, 21 ... Return spring, 35 ... Solenoid, 36 ... Movable iron core, 41
...Auxiliary valve body, 44...Inflow port, 45...
Discharge port, 49...spool, 57...shaft body (
contact), 60... coil spring (contact part).

Claims

[Scope of utility model registration request]

The electromagnetic proportional control valve is composed of an electromagnetic proportional control valve and an auxiliary valve. a solenoid that moves a spool and controls an opening between the inflow port and the discharge port, and the auxiliary valve includes an inflow port connected to the fluid pressure supply source and a discharge port of the electromagnetic proportional control valve. a spool that opens and closes between the inflow port and the discharge port; an elastic member that biases the spool in the closing direction; The auxiliary valve is equipped with a contact point with which the spool comes into contact when the spool is displaced, and a restriction is provided in the flow path downstream of the discharge port of the electromagnetic proportional control valve. In the flow control valve device, the spool of the auxiliary valve is moved in the opening direction against the biasing force of the return spring, and at least one of the mutual contact portions of the spool and the contact of the auxiliary valve is elastically moved in the direction of movement of the spool. A flow control valve device characterized in that it is movable.