FULL-FLOATING BEARING AND TURBOCHARGER INCLUDING THE SAME

摘要

A full-floating bearing for reducing vibration of a shaft of a turbocharger has a central axis and includes an outer surface and an inner surface. The outer surface is configured to face away from the central axis. The inner surface is configured to face the central axis and is radially spaced apart from the outer surface so that the inner surface can be disposed between the central axis and the outer surface. An aperture is defined between the outer and inner surfaces, and allows a lubricant to flow between the outer and inner surfaces. The inner surface has a surface profile that reduces the vibration of the shaft of the turbocharger. The surface profile is defined by the equation represented by Ro = Rb + ASin (3θ + Φ).