Turbocharger with air-cooled magnetic bearing system

The invention relates to an exhaust gas turbocharger having a housing and having a shaft which is arranged so as to be capable of rotating about its longitudinal axis in the housing and on which a turbine wheel and a compressor wheel are seated and which is guided in radial bearings which are embodi...

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Bibliographic Details
Main Author Jaisle, Jens-Wolf
Format Patent
LanguageEnglish
Published 28.11.2006
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Summary:The invention relates to an exhaust gas turbocharger having a housing and having a shaft which is arranged so as to be capable of rotating about its longitudinal axis in the housing and on which a turbine wheel and a compressor wheel are seated and which is guided in radial bearings which are embodied as magnetic bearings and in at least one axial bearing, the bearings each having a bearing plate which is seated on the shaft and at least one stator which lies axially opposite said axial bearing on at least one side, forming a gap. In order to cool the bearings, it is proposed according to the invention that at least one flow duct, via which at least one bearing gap can have an air stream applied to it, is formed in the housing.