Patent ID: 8911202
Filing Date: 2014-12-16
Classification: F01D,F02B,F02C,F04D,F16C,Y02T,Y10T

Abstract:
1. A sleeve for a turbocharger rotating assembly, the sleeve comprising: a compressor end and a turbine end; a bore extending axially from the compressor end to the turbine end; a lubricant passage extending radially from an axial position along an outer surface of the sleeve to an axial position along the bore of the sleeve; a first counter bore disposed axially between the axial position of the lubricant passage along the bore and the turbine end wherein the first counter bore forms an axial face to axially locate a bearing in the bore of the sleeve; a second counter bore disposed axially between the first counter bore and the turbine end wherein the second counter bore comprises a seal surface to form, in part, a lubricant and exhaust seal; a lubricant drainage passage disposed, at least in part, axially between the first counter bore and the second counter bore; and a securing feature to secure the sleeve with respect to a turbocharger housing.