| 摘要 |
The object of the invention is a bearing, in particular an engine bearing, to support in damping manner masses vibrating in different modes. The bearing is c omposed of a load connector inserted in fused manner by means of a rubber-metal compound into an elastomer radial spring, said connector being coupled not only to the said radia l spring receiving the radial vibration components but also and independently from said r adial spring to an axial spring receiving both the static and the axial components of the dyn amic load. The two springs, both the radial and the axial springs, are supported on a beari ng housing acting as the matching rest. The axial spring is located inside a hydraulic wor king chamber formed inside the bearing housing and bounded by the radial spring. The radial spring is designed as a fluid-tight bellows spring forming a second hydraulic or pneumatic working chamber. Preferably the working fluid of this second inner working chamber can be impressed, through a duct and a pressure generator comprising an appropriate con trol, with a dynamic force envelope which opposes in cancelling manner the dynamic loads ap plied to the bearing. Preferably the pressure generator is a membrane generator or a solid-body vibrator. The engine bearing of the invention evinces active wide-band decouplin g and wide-band damping while offering much improved compactness over the related acti ve conventional hydraulic bearings.
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