摘要 |
<p>For the extension and compression strokes of a piston rod, a damping force generating mechanism generates a damping force by controlling the flow of hydraulic oil caused by the sliding movement of a piston in a cylinder. The damping force generating mechanism has a pilot-type main valve, a pilot-type control valve, and a pilot valve. The main valve has a pilot chamber into which the oil is introduced to adjust the valve-opening pressure of the main valve by the pressure in the pilot chamber. The control valve has a pilot chamber into which the oil is introduced to adjust the valve-opening pressure of the control valve by the pressure in the pilot chamber. The pilot valve controls the pressure in the pilot chamber of the control valve. The control valve controls the pressure in the pilot chamber of the main valve.</p> |