Compact fluid pressure control valve solenoid with pilot or gate valve

摘要

A compact fluid pressure control solenoid valve including a gate valve has outer and inner sleeves. The outer sleeve has ports connected thereto for the admission of pressurized fluid and the delivery of pressurized fluid from the pressure control valve to the work or back to a sump. The inner sleeve has formed therein at least a pair of fluid grooves, and the outer sleeve acting in conjunction with the grooves to form passages for hydraulic fluid flow to and from the gate valve and from main valve chamber. The inner sleeve has a main valving chamber with the gate valve being formed at one end of the main valving chamber.