Patent ID: 6592099
Filing Date: 2003-07-15
Classification: F01P,F04B,F04D,F15B,Y02B,Y10T

Abstract:
A silting prevention control device comprising a solenoid valve in which a moving member slides with respect to a valve body according to a control current instruction to output pressurized oil according to a moving position of the moving member, and a subject equipment to be controlled which operates according to the pressurized oil output from the solenoid valve, the silting prevention control device being adapted to prevent silting from occurring in a space between the moving member and the valve body of the solenoid valve, wherein:a relation between a time range and a current value of a silting prevention current instruction to the solenoid valve is predetermined within a range that the subject equipment to be controlled does not operate, and when a current value of the controlled current instruction is not more than a threshold value, the silting prevention current instruction is given to the solenoid valve according to the predetermined relation.