DEVICE AND METHOD FOR UTILIZING THE WASTE HEAT OF AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR FOR UTILIZING THE WASTE HEAT OF A VEHICLE ENGINE

摘要

The invention relates to a method and a device for utilizing waste heat of aninternalcombustion engine, particularly for utilizing the waste heat of a vehicleengine, comprising atleast one heat exchanger (2, 3) to transfer the waste heat from an internalcombustion engineto a working medium; at least one turbine (4, 12, 13) connected to a generator(5, 14, 15) forgenerating mechanical or electrical energy, wherein said turbine (4, 12, 13)is driven by saidworking medium; at least one cooler (6) for cooling the working medium; atleast onecompressor (7, 16, 17) for compressing the working medium; and at least oneworkingmedium circuit (8, 10, 11) with pipes for the working medium, which ischaracterized in thatthe working medium, preferably carbon dioxide, propane , methanol or ethanolor a mixture ofthese fluids, is at least partially in a supercritical state.