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A solenoid operated valve having a solenoid winding mounted on a valve housing formed with a valve chamber, an end closed sleeve concentrically assembled with the solenoid winding, a stationary element disposed within the end closed sleeve and mounted on the valve housing together with the end close

A solenoid operated valve having a solenoid winding mounted on a valve housing formed with a valve chamber, an end closed sleeve concentrically assembled with the solenoid winding, a stationary element disposed within the end closed sleeve and mounted on the valve housing together with the end closed sleeve to form a fluid chamber in a closed end portion of the sleeve, the fluid chamber being communicated with the valve chamber through an axial bore of the stationary element, a movable element disposed within the fluid chamber to be moved toward the stationary element against a return spring loaded thereto when the solenoid winding is activated, a movable valve rod engaged at one end thereof with the movable element for movement therewith and extending into the valve chamber through the axial bore of the stationary element, a valve body disposed within the valve chamber to be moved by the valve rod, and a valve seat mounted within the valve chamber and located between an inlet passage and an outlet passage to be closed by the valve body, wherein a hydraulic damping mechanism is composed of an annular sealing member coupled with the movable element and slidably engaged with an internal surface of the end closed sleeve to form a damper chamber and an orifice formed in the movable element to provide a fluid communication between the damper chamber and the valve chamber.

대표청구항 ▼

A solenoid operated valve having a valve housing formed with a valve chamber positioned between an inlet passage and an outlet passage; a solenoid winding mounted on said valve housing; an end closed sleeve concentrically assembled with said solenoid winding and having an opening end mounted on said

A solenoid operated valve having a valve housing formed with a valve chamber positioned between an inlet passage and an outlet passage; a solenoid winding mounted on said valve housing; an end closed sleeve concentrically assembled with said solenoid winding and having an opening end mounted on said valve housing; a stationary element disposed within said end closed sleeve and mounted on said valve housing together with said end closed sleeve to form a fluid chamber in a closed end portion of said sleeve, said fluid chamber being communicated with said valve chamber through an axial bore of said stationary element; a movable element disposed within said fluid chamber to be moved toward said stationary element against a return spring loaded thereto when said solenoid winding is activated; a movable valve rod engaged at one end thereof with said movable element for movement therewith and extending into said valve chamber through the axial bore of said stationary element; a valve body disposed within said valve chamber to be moved by said valve rod; a valve seat mounted within said valve chamber and located between said inlet and outlet passages to be closed by said valve body; and a hydraulic damping mechanism including an annular sealing member coupled with said movable element and slidably engaged with an internal surface of said end closed sleeve to form a damper chamber and fluid restriction means arranged to provide a fluid communication between said damper chamber and said valve chamber.