| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a solenoid valve and a shock absorber capable of restraining a change in the flow passage area even if there is vibration input from an external part. <P>SOLUTION: This solenoid valve 1 includes a housing 6, a spool valve 7 movably inserted in the axial direction into the housing 6, a spool spring 35 for energizing the spool valve 7, and a solenoid 8 for driving the spool valve 7 in the axial direction against energizing force of the spool spring 35. The solenoid valve includes a movable sleeve 9 slidably inserted between the spool valve 7 and the housing 6, and a pair of sleeve springs 25 and 26 for sandwiching and elastically supporting both ends in the axial direction of the movable sleeve 9, and a mass Mb of the spool valve 7, a spring multiplier Kb of the spool spring 35, mass Ms of the movable sleeve 9 and a synthetic spring constant Ks of the sleeve springs 25 and 26 are set so as to satisfy the relationship of Mb/Kb=Ms/Ks. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
