| 摘要 |
PROBLEM TO BE SOLVED: To provide a normally-closed type solenoid valve reducing noise such as hitting sound and hydraulic impulsive sound in closing/opening the valve for improving product quality. SOLUTION: An annular swelling part 31 surrounding a valve body 30 is arranged around a seating part 26a in a valve seat member 26, in which the valve is opened when a movable core 28 is attracted to a fixed core 25 side by application of electric power to a coil unit 12 and a valve body 30 is separated from a valve seat member 25. COPYRIGHT: (C)2004,JPO
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