Abstract: A vibration isolation mount for elastic suspension of an automobile engine having a body containing a dampening liquid controlled so as to maximize the dampening of low frequency oscillations having a high amplitude and to minimize high frequency oscillations having a small amplitude. The flow of dampening liquid between two chambers is controlled by a pair of bell-shaped elements nested together to form a conduit therebetween. The bell-shaped elements can be rotated with respect to each other, preferably by an electric motor, to open and close perforations in the bell-shaped elements.

Abstract: A resilient support device for mounting an oscillating body on a support structure comprises a tubular support body having an internal chamber which is filled with a damping liquid and defined at one end by a base of the tubular support body and at the other end by an annular elastomeric diaphragm. The outer surface of the diaphragm is fixed to the tubular support body and its inner surface is connected to a shank which is carried by an attachment member connected coaxially to the tubular support body by an annular elastomeric element. At its inner end, the shank has a transverse disk which is immersed in the damping liquid.