Hydraulically shock absorbing, frequency selective sleeve bearing

摘要

At least one pressure chamber (4, 5) in the bearing is connected by one or more equalising ducts (7) with a pressure equalising compartment (8) formed by the inner wall of the bearing's outer sleeve (2) and by a membrane wall in the rubber spring's (3) elastomeric body. The equalising duct is elongated and sinuous with a diameter smaller than that of the shock absorbing duct (6). A gas-tight compartment next to the membrane wall has pressure exerted on it.