Arrangement for converting thermal energy from lost heat of an internal combustion engine

A method for making an arrangement for converting thermal energy from lost heat of an internal combustion engine into mechanical energy, wherein the arrangement comprises:

• a working circuit for a working medium which is heatable and evaporatable using the lost heat;
• an expansion engine disposed in the working circuit, wherein mechanical energy from heat of the working medium is obtainable by the expansion engine;
• a heat exchanger mounted upstream of the expansion engine in a flow direction of the working medium, wherein the working circuit extends through the heat exchanger;
• wherein the heat exchanger comprises an exhaust gas recirculation heat exchanger having a cold part and a warm part, an exhaust gas heat exchanger, and a phase transition cooling in the internal combustion engine;
• wherein the internal combustion engine comprises a cylinder having a cylinder liner;
• wherein the heat exchanger is formed by serial connection in a sequence of the cold part of the exhaust gas recirculation heat exchanger, the exhaust gas heat exchanger, the phase transition cooling in the internal combustion engine, and the warm part of the exhaust gas recirculation heat exchanger;
• wherein a cooling duct is provided in the cylinder liner through which the working medium flows;
• and comprising the steps of:
• forming the cylinder liner by centrifugal casting using a centrifugal mold;
• and
• introducing the cooling duct into the centrifugal mold as an insert prior to the centrifugal casting.