Credits: 3. Grading scale: TH. Compulsory for: M3XEN. Optional for: M3. Course coordinator: Prof Bengt Johansson, Energivetenskaper. Prerequisites: Combustion in Engines. Assessment: Written exam with the scale: not approved, 3, 4, 5 which normally corresponds to 40, 60, 80 % of maximum points. To qualify for the written exam all mandatory parts of the course must be approved. Further information: The course might be given in English. Homepage: http://www.vok.lth.se.

Aim
The goal of the course is to understand how an internal combustion engine is designed and what advanced concepts there are for the future.

Contents
The course starts with an in-cylinder pressure analysis for heat release evaluation. Then the engine mechanical design and force transfer from piston to output shaft is analysed. The balancing of multi-cylinder engines is presented. The gas exchange system is presented in some detail. The design of valves and combustion chamber in four stroke engines are discussed. Gas exchange in two stroke engines and supersharging are also presented. Carburettors, port fuel injection and direct fuel injection of gasoline are the three types of fuel preparation of SI engines. All three types are presented but with emphasis on direct fuel injection. The third type of internal combustion engine, HCCI, is explained. Finally the Wankel and Stirling engines are presented in some detail.

At least one laboratory work will be given in which the in-cylinder pressure is measured as a function of crank angle.

Literature
"Internal Combustion Engines - Part 2" by Bengt Johansson and material handed out by the division