公开(公告)号：US20210054858A1

公开(公告)日：2021-02-25

申请号：US16547944

申请日：2019-08-22

Applicant: Control Components, Inc.

Inventor： Charles A. Hart

IPC: F15B15/20 ,  F15B21/08

Abstract: A control system for controlling the position of a piston within a cylinder includes a positioner, a digital controller, and one or more solenoid operated valves. The positioner may remain active at all times and contribute to control of the position of the piston. The digital controller may compare the actual position of the piston with a desired position of the piston and identify any deviation therebetween. When the deviation is above a prescribed threshold, the digital control may send a signal to the solenoid operated valve(s) to actuate the solenoid operated valve(s) to rapidly correct the deviation. As the deviation approaches zero, the digital controller may deactivate the solenoid operated valve(s) and the positioner may complete the correction.