| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure control device capable of improving pressure controllability by suppressing small oscillation of a valving element caused by a driving frequency supplied to a coil.SOLUTION: In the pressure control device controlling a pressure of working fluid by adjusting an opening to a communication hole 114a, of the valving element 160 on the basis of a balance between suction force Fmg transmitted from an armature 131 through a rod 132 and a fluid force Ffw of the working fluid from the communication hole 114a, the working fluid reaches a first space 112a from a second space 111d through the communication hole 114a to be filled around the armature 131, and a narrow clearance gap portion 210 partially narrowed in the axial direction, is formed in a clearance gap portion 200 between the armature 131 and a housing 110 in the radial direction of the housing 110 to obtain damper effect to the armature 131 by the working fluid. |
