Patent ID: 8413774
Filing Date: 2013-04-09
Classification: F16F

Abstract:
1. A shock absorber comprising: a cylinder having a fluid sealed therein; a piston slidably fitted in the cylinder; a piston rod connected at one end thereof to the piston, an other end of the piston rod extending to an outside of the cylinder; a main valve generating a damping force by a flow of fluid induced by sliding movement of the piston; a pilot chamber applying a pressure therein to the main valve in a direction for closing the main valve; an inlet passage introducing the fluid into the pilot chamber; a pilot passage communicating between the pilot chamber and a downstream side of the main valve; and a pilot valve provided in the pilot passage to discharge the fluid from the pilot chamber; the shock absorber further comprising: a partition member provided in the pilot chamber to form a volume compensating chamber facing the pilot chamber across the partition member, the volume compensating chamber being communicated with the downstream side of the main valve.