TURBOCHARGER BEARING ASSEMBLY

摘要

A turbocharger bearing assembly comprises a turbocharge center housing; and a sleeve, wherein the turbocharge center housing comprises a through bore between a compressor end and a turbine end of the turbocharger center housing, wherein the through bore comprises a sleeve mating surface, and wherein the sleeve is positioned in the through bore of the turbocharger center housing, and comprises an outer mating surface, inner compressor side bearing lubricant film formation surface and inner turbine side bearing lubricant film formation surface.