Fluid-biased hydraulic control valve

摘要

A hydraulic control valve is provided having a solenoid body, an energizable coil, and an armature positioned adjacent the coil. A valve stem extends from the armature. The coil is energizable to move the armature and the valve stem from a first position to a second position. The valve body, the armature and the valve stem are configured so that the armature and the valve stem are biased to the first position by pressurized fluid, allowing the armature to operate without a biasing spring.

主权项

1. A hydraulic control valve comprising:
a solenoid body; a selectively energizable coil; an armature positioned adjacent the coil and having a valve stem extending therefrom; the coil being energizable to move the armature and the valve stem from a first position to a second position; a pole piece positioned to establish a gap between the pole piece and the armature; wherein the armature is configured to route pressurized fluid between the gap and a side of the armature opposite the pole piece and the gap; and wherein the valve body, the armature and the valve stem are configured so that the armature and the valve stem are biased to the first position by pressurized fluid.