SOLENOID VALVE

摘要

A spool is composed of an outer spool (60) for opening and closing each port (52, 54, 56) of a sleeve (50), and also of an inner spool (70) with which a shaft (38) of a solenoid section (30) makes contact to cause the inner spool (70) to open and close a feedback chamber (58).  A spring (80) is designed to appropriately receive a load which is the sum of a load acting on the outer spool (60) due to feedback force occurring when an output pressure is a predetermined pressure P1 and a load acting on the outer spool (60) due to urging force of a spring (44), and the spring (80) is mounted between the outer spool (60) and the inner spool (70).  Pressing the inner spool (70) by means of the solenoid section (30) axially moves the outer spool (60) through the spring (80) to open and close each port (52, 54, 56) and open the feedback chamber (58) in a closed state by urging force of the spring (80).