Valve Assembly for a Control Valve and Control Valve

Abstract

A valve assembly for a control valve includes a valve body having a central longitudinal axis and a cavity with a fluid inlet portion and a fluid outlet portion, a valve needle axially movable in the cavity, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing the fluid flow through the fluid outlet portion in further positions, and an electro-magnetic actuator unit configured to actuate the valve needle. The electro-magnetic actuator unit includes a pole piece fixedly arranged relative to the valve body, and an armature coupled to the valve needle and axially movable in the cavity. The electro-magnetic actuator unit includes a permanent magnet coupled to the valve body and arranged such that the permanent magnet exerts a force on the armature acting to contribute to move the valve needle into the closing position.

Dependencies are inferred from the claim text.