Upper support for shock absorber in suspension system

Abstract

An upper support for a suspension system, which is interposed between a body of a vehicle and a shock absorber of the vehicle, for elastically connecting the vehicle body and the shock absorber. The upper support includes an inner rigid member, an outer rigid member, at least one annular elastic body interposed between the inner and outer rigid members for elastically connecting these rigid members, the above-indicated at least one elastic body at least partially defining at least one annular fluid chamber which is filled with a non-compressible fluid, and at least one annular partition member each of which is accommodated in the corresponding fluid chamber, such that each partition member is fixed to one of the inner and outer rigid members, and elastically connected to the other through the elastic body or bodies, so as to radially extend from the one rigid member toward the other rigid member, and such that each fluid chamber is divided by the corresponding partition member into two sections which undergo relative volumetric changes when a vibrational load is applied between the inner and outer rigid members. Each partition member has at least one orifice passage which allows the non-compressible fluid to flow therethrough between the two sections of the fluid chamber upon application of the vibrational load.