Patent ID: 8602652
Filing Date: 2013-12-10
Classification: F01D,F16C

Abstract:
1. An axially balanced load turbocharger bearing assembly for use between a turbocharger housing having an inner cavity and a shaft; the bearing assembly comprising: a. a first annular bearing assembly having an outer surface that engages a surface of the inner cavity; b. a second annular bearing assembly having an outer surface that engages a surface of the inner cavity; c. an outer spacer having an outer diameter substantially the same as an outer diameter of both the first annular bearing assembly and the second annual bearing assembly, the outer spacer in contact with facing surfaces of the first annular bearing assembly and the second annual bearing assembly; d. an inner spacer having an inner diameter substantially the same as an inner diameter of both the first annular bearing assembly and the second annual bearing assembly, the inner spacer in contact with facing surfaces of the first annular bearing assembly and the second annual bearing assembly; e. wherein the inner diameter of the inner spacer, and the inner diameter of both the first annular bearing assembly and the second annual bearing assembly are substantially the same as an outer diameter of the shaft; f. wherein the outer spacer is fixed in place relative to the turbocharger housing g. wherein the inner spacer rotates with the shaft; h. the turbocharger housing comprising an oil port in fluid communication with an oil source external of the turbocharger housing; i. wherein the turbocharger housing comprises at least one turbocharger housing oil channel providing fluid communication between the oil port and the outer spacer; and j. wherein the outer spacer comprises at least one outer spacer oil channel therethrough, aligned with the turbocharger housing oil channel.