Patent ID: 8632253
Filing Date: 2014-01-21
Classification: F16C

Abstract:
1. A boost pressure generating device of an internal combustion engine, comprising: a shaft, and a bearing unit rotatably supporting the shaft, the bearing unit comprising at least a first rolling-element bearing and at least a second rolling-element bearing, each rolling-element bearing including an inner ring and an outer ring, the inner ring of the first rolling-element bearing is integrally formed with the inner ring of the second rolling-element bearing without breaks therebetween, the outer ring of the first rolling-element bearing and the second rolling-element bearing being formed by separate components, wherein an annular space is defined between the respective inner and outer rings, rolling elements are disposed in the annular space, at least one volume element is disposed in the annular space, the volume element at least partially filling the annular space in an axial direction, and a connecting element attaching the outer ring of the first rolling-element bearing to the outer ring of the second rolling-element bearing, the connecting element being separate from the at least one volume element and located on a side of the outer rings opposite from the annular space, an outer surface of the connecting element being in-line with the outer surface of the outer rings of the first and second rolling-element bearings.