| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a solenoid-operated pressure control valve for effecting approximately linear pressure control of the flow of fluid of a working circuit. SOLUTION: The solenoid-operated pressure control valve (10) is provided with a spool valve member (24) for controlling the fluid from an inlet port (60) to a control outlet port (64) and a discharge port (68). A solenoid is provided with a flux collector (14), having an area-reducing part (20) to form an annular air gap which is separated away from a working air gap. By decreasing flux which crosser the annular air gap, rapid increase in flux increase when the working air gap approached is corrected.</p> |
