Leydig, Voit & Mayer, Ltd.
Vaned spool type directional control valve and four-way reversible valve for cooling cycle system using the same
A vaned spool type directional control valve used to change a direction of motion of an actuator in an air pressure or oil hydraulic circuit includes a vaned spool having a valve portion and a vane portion integrally formed on a spool shaft. A chamber including a shaft support portion, a valve room, and a vane room is formed corresponding to the vaned spool. Main ports connected to the valve room in the chamber and two vane ports penetrating the opposed sides of the vane room are formed in the directional control valve. The directional control valve is of a pilot operated type so that flow of fluid in a main circuit can be changed by rotating the vane spool using the pressure of a pilot fluid.
Aser Tech Co., Ltd.
F F F F Y F Y
F16K F16K F15B F15B Y10T F25B Y10T
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Yun Boon
Lee