SOLENOID VALVE FOR TRANSMISSION

摘要

A solenoid valve for transmission is provided to directly control the clutch pressure of transmission, improve fuel economy and simplify a hydraulic circuit. The solenoid valve comprises a holder(10), and a spool(20) and a solenoid part(30). The guideline hollow(10a) for guiding the movement of spool is formed inside the holder. The spool moves the solenoid part. A feedback channel(18) is formed in one side circumference part of holder. A feedback chamber(11) and a control chamber(13) are opened through the feedback channel. The exposed portion(18a) of the feedback channel is shut tightly by the mounting surface of the valve body.