| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce attraction sound when a solenoid valve is opened without changing an internal configuration even in the solenoid valve with any size. <P>SOLUTION: Solenoid valve control is for applying a current to a coil 307 of the solenoid valve including a plunger 305 for opening and closing a valve, a fixed core 308 for attracting the plunger 305 and the coil 307 for making the fixed core 308 generate attractive force. In the solenoid valve control, the current to be applied to the coil 307 is varied from a small current to a large current, and the valve is opened. <P>COPYRIGHT: (C)2013,JPO&INPIT |
