Thermodynamic engine

A thermodynamic engine, comprising:

• a low-temperature circuit, in which a first working medium is transported by a first pump through a first heat exchanger and subsequently through a decompression device which generates kinetic motion;
• and
• a high-temperature circuit, in which a second working medium is transported by a second pump through a second heat exchanger and subsequently through the decompression device,
• wherein
• the first heat exchanger and the second heat exchanger are arranged on an exhaust gas system of an internal combustion engine such that the heat exchangers receive exhaust heat from the internal combustion engine,
• a temperature of a portion of the first working medium in a first collection container may be regulated by an engine coolant circuit of the internal combustion engine,
• the low-temperature circuit has an injection device which injects first working medium withdrawn from the low-temperature circuit back into the low-temperature circuit in the vicinity of the first heat exchanger, and
• the high-temperature circuit has a heating device between the second heat exchanger and the decompression device for heating the second working medium.