| 摘要 |
PURPOSE:To economize energy for an integrated three-port solenoid valve of self-sustaining type which includes two solenoids, by engaging one solenoid with a turning lever and using the solenoid to keep the valve in operation. CONSTITUTION:In addition to a first solenoid 70 for driving a plunger 50 engaged with a turning lever 30, a second solenoid 200 fitted with a plunger 201 capable of being engaged with the lever is provided. After the first solenoid 70 is energized to move the plunger 50 and the turning lever 30 in the direction of an arrow A to place them in an operating position, the second solenoid 200 is deenergized to return the plunger 201 to a position as shown in the drawing, by a compressed spring 202, to keep the turning lever in the operating position. For that reason, the first solenoid 70 can be deenergized to economize energy. |
