Patent attributes
The invention relates to a drivetrain, in particular for motor vehicles,having an internal combustion engine, comprising an output shaft;having a turbocharger, comprising an exhaust gas turbine, which is situated in the exhaust gas stream of the internal combustion engine, and a compressor driven by the exhaust gas turbine, which is situated in an air channel leading to the internal combustion engine in order to compress air for the internal combustion engine;the exhaust gas turbine additionally having a drive connection to an auxiliary system or to the output shaft of the internal combustion engine or being switchable into such a connection, in order to transmit drive power alternately or simultaneously from the exhaust gas turbine to the compressor or the output shaft and the auxiliary system; anda hydrodynamic clutch being situated in the additionally provided drive connection, comprising a bladed primary wheel and a bladed secondary wheel, which implement a working chamber with one another, which is fillable or filled with a working medium, in order to transmit drive power hydrodynamically from the primary wheel to the secondary wheel, and the primary wheel has a drive connection to the exhaust gas turbine, and the secondary wheel has a drive connection to the auxiliary system or the output shaft.