Abstract: The invention relates to a method for controlling the power transmission in a drive train, in particular of a motor vehicle, wherein the drive train comprises: an internal combustion engine which drives an output shaft at an engine speed and generates an exhaust gas stream; an exhaust gas turbine which is arranged in the exhaust gas stream and is engaged in or can be switched to a drive connection with the output shaft in order to transmit the drive power of the exhaust gas turbine to the output shaft; a compressor which is arranged in a fresh air stream supplied to the internal combustion engine and which is engaged in and driven by a drive connection with the exhaust gas turbine in order to charge the internal combustion engine at a predefined charging pressure; a power-controlled hydrodynamic clutch, which is arranged in the drive connection between the exhaust gas turbine and the output shaft and by means of which drive power of the exhaust gas turbine is transmitted to the output shaft depending on the p

Abstract: An apparatus comprising a turbocompound system for an internal combustion engine comprises a shaft driven by a turbine, an output shaft and a transmission unit connecting the shaft. The transmission unit is arranged in a housing and comprises at least one hydrodynamic coupling. The drive apparatus is provided in accordance with the invention with at least one conveying means, by means of which lubricating oil or a mixture containing lubricating oil can be extracted by suction from the housing.

Abstract: The invention relates to a method for controlling the power transmission in a drive train, in particular of a motor vehicle, wherein the drive train comprises: an internal combustion engine which drives an output shaft at an engine speed and generates an exhaust gas stream; an exhaust gas turbine which is arranged in the exhaust gas stream and is engaged in or can be switched to a drive connection with the output shaft in order to transmit the drive power of the exhaust gas turbine to the output shaft; a compressor which is arranged in a fresh air stream supplied to the internal combustion engine and which is engaged in and driven by a drive connection with the exhaust gas turbine in order to charge the internal combustion engine at a predefined charging pressure; a power-controlled hydrodynamic clutch, which is arranged in the drive connection between the exhaust gas turbine and the output shaft and by means of which drive power of the exhaust gas turbine is transmitted to the output shaft depending on the p

Abstract: The invention relates to a drivetrain, in particular motor vehicle drivetrain, with a combustion engine having a drive output shaft and which produces a hot exhaust-gas flow; with a turbocompound system comprising: an exhaust-gas turbine which is arranged in the exhaust-gas flow such that it can be impinged upon by exhaust gas and which converts exhaust-gas energy into propulsive energy, wherein the exhaust-gas turbine is drive-connected, or can be switched so as to be drive-connected, to the output shaft of the internal combustion engine and also drives a turbocompressor or positive-displacement compressor by means of which the internal combustion engine is charged on the fresh-air side; with a compressed air system, comprising: an air compressor which can be driven by means of the combustion engine or an additional motor and which feeds compressed air into at least one compressed-air circuit or a compressed-air line.