Patent ID: 6145538
Filing Date: 2000-11-14
Classification: F16K,F25B,Y02B,Y10T

Abstract:
A flow control valve comprising:a valve housing having liquid inlet and outlet passageways, and a guide space which is communicated with said liquid inlet and outlet passageways;a spool which is connected to be movable up and down with respect to said guide space of said valve housing so as to control an openness of said outlet passageway;a spool guide which is accommodated in an upper portion of said guide space so as to allow a flow of refrigerant liquid downward by being moved together with said spool;an elastic support which elastically supports said spool guide in one direction;a seal member which is connected to a lower end portion of said valve housing, wrapping around a lower portion of said spool, so as to prevent a leakage of the refrigerant liquid; anda driving mechanism, which includes a step motor, which moves said spool up and down.