| 摘要 |
PURPOSE:To improve parts precision and to eliminate the need for adjustment, etc., by providing a stopper at a valve part on an AC solenoid side to slide said valve part, and thus pressing a valve seat with spring force. CONSTITUTION:When a solenoid 11 is not in operation, a spring 15 is charged several times as strongly as a spring 16 to press a valve 13 against a valve seat, and a valve 12 is made to float with a stopper 17 through a stopper 18 and a shaft 8. the solenoid 11, when in operation, moves the shaft 14 against the spring 15 to make the valve 13 separte from the valve seat. In this case, the valve 12 is pressed against the valve seat by the spring 16 because the stopper 17 moves by passing through the valve seat. Namely, this invention improves precision of parts and eliminates the need for adjustment, etc., only by increasing the stroke of the solenoid enough. |
