| 摘要 |
A continuous water level controller includes a base member, a sleeve mounted in the base member, a piston assembly and an actuating linkage. A stopper is attached to one end of the shaft in the base member to close the outlet of the base member. A piston is slidably received in said sleeve and securely attached to the shaft. A spring is mounted around the shaft between the stopper and the piston. The time the outlet is open is controlled by the restitution force of the spring and the siphonage between the piston and the sleeve. Consequently, the distance the piston travels controls the volume discharged from the outlet to achieve the goal of continuous control.
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