Patent ID: 8191371
Filing Date: 2012-06-05
Classification: F02B,Y02T

Abstract:
1. 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 alternately or simultaneously transmit drive power from the exhaust gas turbine to the compressor and the auxiliary system or the output shaft; and a 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 hydrodynamically transmit drive power 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; characterized in that the hydrodynamic clutch is switched between the exhaust gas turbine and the compressor, in that the primary wheel of the hydrodynamic clutch is mechanically connected to a gearwheel or carries such a gearwheel, in particular on its external circumference, which meshes with a gearwheel revolving with the exhaust gas turbine or a gearwheel revolving with the compressor, so that the primary wheel of the hydrodynamic clutch has a mechanical drive connection to the exhaust gas turbine and the compressor.