| 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 reciprocatably accommodating a movable core 30 has an intermediate diameter portion 204, a first small diameter portion 206 and a second small diameter portion 207, and further has a magnetic blocking portion 21 between the first small diameter portion 206 and the second small diameter portion 207. A flange portion 22 made of a magnetic material is disposed on an outer periphery of the intermediate diameter portion 204, and kept into contact with a yoke 44. In addition to a magnetic circuit formed from the yoke 44 of a coil assembly 40 to the movable core 30 and the second small diameter portion 207 through the intermediate diameter portion 204 and the first small diameter portion 206 while bypassing the magnetic blocking portion 21, a magnetic circuit going through the flange portion 22 is also formed by power distribution to the coil 41. By the expanded magnetic circuit M2, magnetic attraction force F2 inclined with respect to a central axisφof the guide cylinder 20 is generated between the second small diameter portion 207 and an end face 32, and the movable core 30 is attracted to a fixed core 35 side.</p> |
