Resilient support with filling fluid having a chamber for receiving a vacuum chamber and an auxiliary air in order to allow the variations in volume of a chamber of equilibrium.

摘要

The support according to the invention comprises a chamber for receiving the pressure (136) partially defined by the elastic body, a first and second chambers of equilibrium (140, 150) defined by a first and second flexible membranes (138, 148), and communicating with the reception chamber of pressure by a first and second calibrated passages (146, 152), respectively, and a reception chamber of a vacuum (154) separated from the second chamber of equilibrium with the second membrane. In operation, the reception chamber of a vacuum is selectively connected to a vacuum or to the atmosphere, in order to control the elastic deformation of the second membrane. The support also comprises a chamber of the auxiliary air (166) which cooperates with the reception chamber of a vacuum in order to absorb a change in volume of the second chamber of equilibrium when the reception chamber of a vacuum is set to the atmosphere.