Patent ID: 6739571
Filing Date: 2004-05-25
Classification: B60T,F16K

Abstract:
A solenoid valve comprising:a sleeve; a movable member disposed in the sleeve to move in an axial direction; a valve mechanism portion that is openable and closable in accordance with axial movement of the movable member for establishing and interrupting operational fluid communication across the valve mechanism portion; a valve chamber exposed to the valve mechanism portion and an end surface of the movable member at a valve mechanism portion side of the movable member; a damper chamber exposed to an axially opposite end surface of the movable member located opposite the end surface at the valve mechanism portion side; a throttling portion unitarily formed on a sliding surface of the movable member to establish fluid communication between the damper chamber and the valve chamber and introduce the operational fluid from the damper chamber to the valve chamber; and wherein the operational fluid in the damper chamber flows into the valve chamber via the throttling portion only by way of an outer periphery of the movable member.