Patent ID: 9534700
Date: 2017-01-03
CPC Classifications: F16K

Claim:
1. An assembly comprising a valve and a valve actuator, the valve actuator comprising: a housing, a motor coupled to the valve, wherein rotation of the motor changes the position of the valve from a first position in which fluid flow may occur along at least one path and a second position in which fluid flow is either blocked or may occur along at least one second path, the valve presenting a plurality of adjustable positions between the first position and the second position, said motor being normally supplied with electrical power from a main source of electrical power, at least one sensor configured to detect the position of the valve, a switch controlling the delivery of electrical power to the motor, a power circuitry connected to the switch, a controller connected to the at least one sensor and to the power circuitry, the controller including a plurality of power settings each corresponding to one of the positions of the valve, said controller collecting in real time data relative to the position of the valve and data relative to the power setting, calculating the position correction in pro rata solely as to errors between the collected data relative to the position of the valve and collected data relative to the power setting, and sending a new power setting to the power circuitry based solely on the calculated position correction, wherein the power circuitry amplifies the controller signal.