Valve actuating control device for removal of foreign particles, has variable resistor equivalence parameter inquiry circuit, which works in order to monitor a pre-determined variable resistor equivalence parameter

摘要

The valve actuating control device has a variable resistor equivalence parameter monitoring circuit, which works, in order to monitor a pre-determined variable resistor equivalence parameter, which is equivalent to a resistance, which finds out the butterfly valve (3), if it is turned by the valve control member within the gas flow path (2). A valve operating monitoring circuit, which works, around a value of the variable resistor equivalence parameter, which is monitored by the variable resistor equivalence parameter monitoring circuit. The valve actuating monitoring circuit works for determining a rotary motion of the butterfly valve has decelerated due to the existence of foreign particles, which prevent the movement of the butterfly valve, and controls the operation of the butterfly valve in order to execute the actuation of removal of foreign particles at a time point, when it is required.