Bearings get an airing

摘要

UK company Corac has developed an oil-free, high-speed compressor technology that could not only change the face of industrial compression hut also squeeze the last few drops from dwindling natural gas natural resource. Corac's technology is a refinement of the traditional centrifugal compressor, which works on the principle of an extremely high impeller velocity accelerating a gas to create a rise in pressure. This pressure is then further increased as the flow of air is slowed down by an arrangement of diffusers around the impeller. In most centrifugal compressors, there are several of these impeller/diffuser combinations.