| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve capable of reducing a hammering noise during the operation of an armature part and maintaining an valve opening responsiveness. SOLUTION: A hole part is former in a pressure pin guide 80, a pressure pin 90 which slides interlockingly with an armature 49 is close-fitted into the hole part, and a coil spring 82 to energize the pressure pin 90 to the armature 49 side is stored on the pressure pin 90 on the side opposite to the armature so as to form a damper chamber 81. Also a slit 91, an annular groove 93, and a flanged part 92 are formed on the outer peripheral wall of the pressure pin 90. By this, because the speed of collision between the contact part 94 of the armature part and the pressure guide 80 is reduced when a spill solenoid valve 100 is opened, hammering noise at the collision can be reduced. In addition, a valve opening responsiveness in those times other than the time of contact of the contact part 94 with the pressure pin guide 80 can be maintained by the proper adjustment of the axial length of the flanged part 92. |
