Abstract: A vehicle engine suspension system in which, in order to reduce `shake` electrically actuated engine mounts are provided, power being supplied to the engine mounts by a control system responsive to vehicle body accelerations (e.g. in the vertical direction). The arrangement is such that when a tendency of the body to move is detected, e.g. by an accelerometer mounted on the body, the engine mounts are actuated so as to generate, between the engine and the body, forces which are of such amplitude and phase as to reduce the shake of the body.

Abstract: A vehicle engine mounting arrangement wherein a pair of interconnected fluid-tight chambers containing gas are employed, one arranged between the engine and the body and the other arranged between the body and the suspension system. The two chambers are each deformable under load and changes of pressure which are communicated between the chambers act on the respective chambers so that dynamic forces exerted on the body via one chamber tend to be counteracted by corresponding oppositely directed forces exerted on the body via the other chamber, hence reducing shake.