Patent ID: 8307964

Claim:
Hydraulic shock absorber, comprising a piston with a piston rod, said piston rod being provided with connecting means for fixing to a part of a vehicle, and comprising a cylinder which accommodates the piston and on the side away from the piston rod is provided with further connecting means for fixing to another part of said vehicle, said piston being provided with a number of connecting channels extending towards the piston rod in order to provide fluid communication between opposite sides of the piston, a plate valve being present on one side of the piston and provided over said connecting channels, said valve being fitted in such a way that i) on movement towards each other of said connecting means and said further connecting means, fluid flows through said channels when said plate valve opens, and ii) on movement away from each other of said connecting means and said further connecting means, said valve completely closes off an opening of each of said connecting channels, wherein, in a rest position without fluid flow between the opposite sides of the piston, said valve partially clears said openings, wherein said plate valve comprises an opening which lies at a radial distance from the opening of the connecting channel to be closed off by the valve, and wherein, in the partially opened state of the rest position, a flow path for fluid extends between said opening in the plate valve and a space defined between the plate valve and the piston and said opening in said connecting channel.