| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a solenoid valve device for a high-pressure fluid capable of being physically miniaturized while blocking or permitting flow of the high-pressure fluid.SOLUTION: A guide cylinder 20 which is made of a magnetic material capable of being filled with a high-pressure gas fuel inside and reciprocatably accommodates a movable core 30, is composed of a first small diameter portion 206, a second small diameter portion 207, a magnetic blocking portion 21 having a thickness thinner than those of the first small diameter portion 206 and the second small diameter portion 207, and the like. When a magnetic circuit M2 is formed by an energized coil 41, magnetic flux passing through the first small diameter portion 206 flows to the second small diameter portion 207 through an end face 321 of the movable core 30, and generates magnetic attraction force F2 inclined with respect to a central shaftφ. Thus the movable core 30 is attracted to a fixed core 35 side by the magnetic attraction force F2 in addition to magnetic attraction force F1 generated by a magnetic circuit M1. Accordingly, an opposition area of the movable core 30 with respect to the fixed core 35 is reduced, and a physical constitution of a solenoid valve device 1 for a gas fuel can be reduced.</p> |
