| 主权项 |
1. A hydraulic valve with electropneumatic actuator equipped with an inlet section, comprising:
an entry opening that receives hydraulic fluid from a hydraulic pump attached to a tank and directs the hydraulic fluid into a main line; equipped with at least one working section, where each working section comprises of the main line connected to at least one secondary line, the secondary line being connected to at least one opening, which is attached to at least one return line; a spool configured to manage these connections which moves vertically to allow or block passage of hydraulic fluid from the secondary line to the opening and the passage of the hydraulic fluid from the opening to the return line, the opening being connected to one of the chambers of a hydraulic actuator, and one of the ends of the spool being attached to a piston encased in a cylinder; the piston divides the cylinder into a front chamber and a rear chamber and is equipped with an outlet section that receives hydraulic fluid from the main line and the return line and directs the fluid through an outlet opening connected to the tank; an air inlet that receives pressurized air from an air compressor and directs the pressurized air into a line of the cylinder, the line being connected to an extension line attached to a solenoid extension valve that allows or blocks the passage of pressurized air from the extension line to a rear line, the rear line being attached to the rear chamber and the cylinder line being connected to a retraction line attached to a solenoid collection valve that allows or blocks the passage of pressurized air from the retraction line to an anterior line, which is attached to the front chamber. |
