Anisotropic bearing supports for turbochargers

摘要

A rotating assembly for a turbocharger can include a center housing that includes a through bore having a central axis; a bearing cartridge positioned in the through bore where the bearing cartridge includes an outer race, an inner race and rolling elements disposed between the inner race and the outer race; an anisotropic member positioned in the through bore between the outer race of the bearing cartridge and a surface of the center housing where the surface defines at least part of the through bore of the center housing; and a shaft rotatably supported in the center housing by the bearing cartridge where the inner race is mounted on the shaft and the shaft is connected at one end to a compressor wheel and at another end to a turbine wheel.

主权项

1. A rotating assembly for a turbocharger comprising:
a center housing that comprises a through bore having a central axis; a bearing cartridge positioned in the through bore wherein the bearing cartridge comprises an outer race, an inner race and rolling elements disposed between the inner race and the outer race; an anisotropic member positioned in the through bore between the outer race of the bearing cartridge and a surface of the center housing wherein the surface defines at least part of the through bore of the center housing and wherein the anisotropic member comprises a ring and a series of lobes arranged about the ring; and a shaft rotatably supported in the center housing by the bearing cartridge wherein the inner race is mounted on the shaft and the shaft is connected at one end to a compressor wheel and at another end to a turbine wheel.