BEARING ARRANGEMENT FOR A TURBOCHARGER, AND TURBOCHARGER
A bearing arrangement for a turbocharger, including a bearing housing-which extends in an axial direction, an anti-friction bearing, situated within the bearing housing, having an outer bearing ring and a number of rolling bodies and an axially extending shaft which is rotatably mounted within the bearing housing. It is provided that the shaft includes a rolling body raceway for guiding the rolling bodies. Moreover, the invention relates to a turbocharger having such a bearing arrangement. A bearing arrangement of this type allows the secure mounting of a shaft in a turbocharger with simple assembly and low costs.
1 - 11 . (canceled)
12 . A bearing arrangement for a turbocharger, comprising:
a bearing housing extending in an axial direction;
an anti-friction bearing situated within the bearing housing and having an outer bearing ring and a plurality of rolling bodies; and
an axially extending shaft rotatably mounted within the bearing housing, the shaft having a shaft journal on an end-face side for fastening to a turbine wheel.
13 . A bearing arrangement for a turbocharger, comprising:
a bearing housing extending in an axial direction;
an anti-friction bearing situated within the bearing housing having an outer bearing ring and a plurality of rolling bodies; and
an axially extending shaft rotatably mounted within the bearing housing, the shaft including a rolling body raceway for guiding the rolling bodies, the outer bearing ring being guided in the bearing housing by a support ring.
14 . The bearing arrangement as recited in claim 13 wherein the shaft has a shaft journal on an end-face side for fastening to a turbine wheel.
15 . The bearing arrangement as recited in claim 13 wherein the shaft, at least in the area of the rolling body raceway, is made of steel.
16 . The bearing arrangement as recited in claim 13 wherein the shaft is composed of a plurality of axially adjacent shaft sections.
17 . The bearing arrangement as recited in claim 16 wherein the shaft sections are welded together.
18 . The bearing arrangement as recited in claim 13 wherein the shaft includes an inner recess.
19 . The bearing arrangement as recited in claim 13 wherein the outer bearing ring includes a splash oil hole for acting on the anti-friction bearing with lubricant.
20 . The bearing arrangement as recited in claim 13 wherein the shaft includes a plurality of grooves on its outer periphery for positioning sealing elements.
21 . The bearing arrangement as recited in claim 13 wherein the shaft includes an oil separator.
22 . The bearing arrangement as recited in claim 12 wherein the shaft, at least in the area of the rolling body raceway, is made of steel.
23 . The bearing arrangement as recited in claim 12 wherein the shaft is composed of a plurality of axially adjacent shaft sections.
24 . The bearing arrangement as recited in claim 23 wherein the shaft sections are welded together.
25 . The bearing arrangement as recited in claim 12 wherein the shaft includes an inner recess.
26 . The bearing arrangement as recited in claim 12 wherein the outer bearing ring includes a splash oil hole for acting on the anti-friction bearing with lubricant.
27 . The bearing arrangement as recited in claim 12 wherein the shaft includes a plurality of grooves on its outer periphery for positioning sealing elements.
28 . The bearing arrangement as recited in claim 12 wherein the shaft includes an oil separator.
29 . A turbocharger comprising:
a compressor wheel;
a turbine wheel; and
a bearing arrangement as recited in claim 12 , the compressor wheel and the turbine wheel being connected via the shaft, and the shaft being welded to the turbine wheel.
30 . A turbocharger comprising:
a compressor wheel;
a turbine wheel; and
a bearing arrangement as recited in claim 13 , the compressor wheel and the turbine wheel being connected via the shaft, and the shaft being welded to the turbine wheel.