Patent ID: 11920489
Assignee: TURBO SYSTEMS SWITZERLAND LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An exhaust turbocharger comprising:
a modular bearing which is arranged between a compressor and a turbine and is designed for bearing a shaft, wherein the modular bearing includes a bearing assembly module having a rolling bearing or a bearing assembly module having a plain bearing,
wherein the modular bearing is inserted in a bearing housing with a receiving chamber dimensioned such that the bearing assembly module having the rolling bearing and the bearing assembly module having the plain bearing can be installed in the receiving chamber interchangeably, and can be removed from the receiving chamber without being destroyed, wherein each bearing assembly module defines one or more ducts on a compressor side of the bearing assembly module,
wherein the receiving chamber has an interface which is designed for making contact with a bearing flange of either bearing assembly module installed in the receiving chamber and for connecting an oil duct guided through the bearing housing to the one or more oil ducts which are guided through the bearing flange,
wherein the receiving chamber further has a step including a stop surface running substantially in a radial direction of the exhaust turbocharger, wherein the stop surface faces the compressor and defines an axial stop for the bearing assembly module installed on the compressor side, wherein the step divides the receiving chamber into (i) a first receiving chamber section arranged on the compressor side and (ii) a second receiving chamber section arranged on a turbine side, wherein the first receiving chamber section is larger in the radial direction than the second receiving chamber section, wherein the first and second receiving chamber sections are arranged axially adjacent to one another, wherein the step is arranged between the first and second receiving chamber sections, wherein the one or more oil ducts are connected to the duct defined in the bearing housing, and wherein the one or more ducts defined in the installed bearing assembly module are positioned within the first receiving chamber section of the exhaust turbocharger.