ROLLING BEARING ASSEMBLY OF AN EXHAUST GAS TURBOCHARGER

摘要

A rolling bearing assembly for a rotor of a turbine includes a bearing housing and a bearing cartridge. The bearing cartridge may include an outer shell and an inner shell arranged concentrically thereto. The outer and inner shell may be rotatably mounted on one another about a concentric axis of rotation in two bearing sections axially spaced from one another via rolling bodies. The inner shell may be arranged on a rotor shaft and in the region of the bearing sections includes an inner press fit region. The outer shell may be arranged in the bearing housing and have axially spaced from the bearing sections at least one outer press fit region. In the respective bearing sections an oil damping ring channel may be radially formed between the bearing housing and the outer shell. The oil damping ring channel may extend coaxially to the axis of rotation.

主权项

1. A rolling bearing assembly for a rotor of a turbine, comprising:
a bearing housing, and a bearing cartridge having an outer shell and concentrically thereto an inner shell, the outer and inner shell rotatably mounted on one another about a concentric axis of rotation in two bearing sections axially spaced from one another via rolling bodies, wherein the inner shell is arranged on a rotor shaft and in the region of the bearing sections has an inner press fit region, wherein the outer shell is arranged in the bearing housing, the outer shell having axially spaced from the bearing sections at least one outer press fit region, in the respective bearing section of the bearing cartridge an oil damping ring channel is radially formed between the bearing housing and the outer shell, the respective oil damping ring channels extending coaxially to the axis of rotation and bounded distally to a respective axial face end of the bearing cartridge through the respective outer press fit region, and the respective oil damping ring channel bounded proximally to the respective axial face end of the bearing cartridge through a closing ring arranged on the bearing housing.