Engine mount with hydraulic damping.

摘要

An engine mount with hydraulic damping, comprising a fluid-filled working and equalisation chamber (1, 2), which are separated from one another by a flexible partition wall (3) and connected by a damping aperture (4). The working chamber (1) and the equalisation chamber (2) opposing one another in an axial direction are defined by essentially non-deformable pistons, which are each connected by an elastically deformable torus, impervious to the fluid, to a centrally arranged annular fitting. The pistons are rigidly connected by a connecting rod (7) passing through the partition wall in the area of an aperture. The piston (9) defining the equalisation chamber (2) has a piston area which is at least as large as the piston area of the partition wall. The torus associated with this piston (9) comprises a first rolling diaphragm (6) pre-arched outwards in an axial direction and the partition wall (3) comprises a second rolling diaphragm pre-arched in an axial direction into the working chamber (1). The latter is fixed on the inside to the connecting rod (7) so that it is impervious to fluid.