PROPORTIONAL SOLENOID VALVE AND CONTROLLING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To obtain a proportional solenoid valve for improving oscillation resistance by reducing the self-excited oscillation region of a valve element.

SOLUTION: A drain side passage 15d comprises at least four even-numbered exhaust passage holes 15e arranged with an equal interval one another in the peripheral direction of a valve sheet member 15. The sectional areas of respective exhaust passage holes 15e are equal one another. Additionally, the total of the sectional area of all exhaust passage holes 15e is set to 1 to 2 times larger than the sheet area of a sheet section 15b.

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