Compound suspension system

摘要

For better handling and improved riding comfort of a vehicle, there is provided a compound suspension system comprising a plurality of hydraulic shock absorbers each having a front chamber and a back chamber defined in front of and behind a piston member, respectively, received in a cylinder member, and a valve structure provided in each of the shock absorbers for selectively communicating the chambers to a conduit which is common to at least one other shock absorber, wherein: the valve structure comprises a valve element provided with a first part for varying a degree of communication between the front chamber and the common conduit and a second part for varying a degree of communication between the front chamber and the back chamber. The valve element is provided with two sets of openings which are spaced longitudinally from each other so as to cooperate with different ports provided in the piston rod as the valve element is turned about its longitudinal center by means of a control rod which extends longitudinally through a central bore of the piston rod.