Valvetrain mechanism of a four-cylinder in-line gasoline aircraft engine

This diploma thesis focuses on the analysis and design of a valvetrain for an aircraft piston engine. Using the GT Suite simulation tool, the aim is to construct a dynamic model of the valvetrain, make corresponding calculations as well as some design modifications. The thesis begins with the introduction to aircraft engines and valvetrain in general. In the following chapters, a more detailed introduction to cam profiles as well as related topics is presented. In the practical part of the thesis, an analysis of contemporary design is conducted, followed by a proposed design of new cam profiles. A single-valve model as well as a model containing all valves is presented, taking the gas pressure in the cylinder into consideration. The FEM Ansys Workbench was used for further calculations. The conclusion of the thesis summarizes designed variants, and further possible steps are outlined