Man Truck & Bus Ag

Man Truck & Bus Se.

Alexander Schydlo

Josef Klammer

Stefan Robausch

Robert Martens

Thomas Landsherr

Ferdinand Stadler

The present disclosure relates to a device for energy recovery for an electrically driven motor vehicle. The device includes an electric drive unit for driving the motor vehicle and a permanent brake deice which is designed as a hydrodynamic retarder and is or can be drivingly connected to the electric drive unit. A waste heat recovery device has an expansion machine which is or can be connected to the permanent brake device for energy recovery of a waste heat resulting from the braking of the permanent brake device. The present disclosure also relates to a method for energy recovery in an electrically driven motor vehicle.

Device and method for energy recovery for an electrically driven motor vehicle

An internal combustion engine including a cooling liquid circuit, which is connected to a cylinder head and an engine block of the internal combustion engine and which includes a cooling liquid pump. The cooling liquid pump includes a drive shaft and is capable of conveying cooling liquid in the cooling liquid circuit. Further, the internal combustion engine includes a Visco clutch. The Visco clutch is arranged for the drive by the internal combustion engine. The Visco clutch includes a clutch fluid for torque transmission. At the output side, the Visco clutch is connected to the drive shaft of the cooling liquid pump. The drive shaft of the cooling liquid pump include at least one heat pipe. The heat pipe is in heat exchange with the clutch fluid as a heat source and the cooling liquid as a heat sink.

Technique for cooling for an internal combustion engine

A method and apparatus for operating an internal combustion engine, in particular for commercial vehicles, having a fuel/air feed device and a downstream exhaust system, wherein, to achieve improved efficiency, the exhaust gas enthalpy in the exhaust gas flow of the internal combustion engine is used to operate a heat engine, in particular a Stirling engine, which produces mechanical energy.

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Munich, Germany

Alexander Schydlo