Exhaust gas turbocharger for a combustion engine has hydraulic machine integrated into shaft bearing housing to withdraw or supply mechanical shaft power

摘要

An exhaust gas turbocharger (10) for a combustion engine comprises a turbine to expand exhaust gas from the engine and a compressor for the incoming air stream with both turbine and compressor comprising rotors (11,12) on a common shaft (13) with a bearing housing (16) between them. At least one hydraulic machine is integrated into the housing and withdraws mechanical shaft power in the generator-operating mode of the turbocharger or supplies it in the engine-operating mode.