| 摘要 |
The solenoid valve used in an antilocking brake system (ABS) of an automobile is able to change directions of three- ports/three-positions. The solenoid valve includes a cylinder (13) in it. The cylinder has both connecting ports (P)(T) for the suction hole and the exhausting hole of the hydraulic pump. A yoke (12), producing sucking magnetic force when current flows in the solenoid coil (11), is placed in the central part of the cylinder inside of the tube. The cylinder incldues push rods supported by springs, first and second plungers (14), (15) which move independently to each other by magnetic force induced at the yoke, and first and second check valves (16)(17) placed in the connecting port (9) and the first plunger.
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