Patent ID: 8652021
Filing Date: 2014-02-18
Classification: B04B,F01M,F16C,F16N

Abstract:
1. A decanter-type centrifugal separator comprising: a hollow bowl; a bowl hub supporting the hollow bowl, said bowl hub comprising a flange, an inner shaft, and an outer shaft; a holder supporting in a rotatable state the outer shaft of the bowl hub inserted inside the holder; and a conveyor hub bearing supporting a screw conveyor in a rotatable state at an outer circumferential side of the inner shaft of the bowl hub, the screw conveyer being configured such that a to-be-processed raw liquid, introduced into the hollow bowl, is separated by a centrifugal force into fractions, and the separated fractions are discharged separately due to high speed rotations of the outer shaft and the screw conveyor, wherein the decanter-type centrifugal separator further comprises a continuous lubricant supply device including: the annular introducing path comprising a first annular groove inside the holder formed radially outward from an inner circumferential surface thereof, such that an outer circumferential surface of the outer shaft closes the first annular groove from an inner side, and the oil collector is configured to revolve in a predetermined direction along a trajectory inside the annular introducing path, thereby collecting the lubricant located inside the annular introducing path, moving the lubricant to a region on a radially inner side of the annular introducing path, and causing the lubricant to flow into the lubricant supply path formed at a position on a radial inner side of the oil collector.