Patent ID: 8790066

Claim:
A turbocharger assembly comprising: a housing that comprises a through bore having a central axis extending between a compressor end and a turbine end of the housing; and a bearing, configured for receipt by the through bore, wherein the bearing comprises an inner journal configured to rotatably support a turbocharger shaft with an intended direction of rotation and wherein the inner journal comprises a central axis, an axial length, a lubricant opening, an axially confined lubricant well wherein the lubricant opening opens to the lubricant well, a lubricant ramp that comprises an arc span, in the intended direction of rotation of the turbocharger shaft, from a first radial distance measured from the central axis to a second, lesser radial distance measured from the central axis, the axially confined lubricant well and the lubricant opening being disposed within the arc span of the lubricant ramp, a lubricant channel that spans the axial length of the inner journal, and a lubricant flow path defined by a radial depth, an axial width and an arc span, in a direction opposite to the intended direction of rotation of the turbocharger shaft, from the axially confined lubricant well to the lubricant channel.