A car engine turns the heat of burning fuel into motion, and the 4-stroke cycle explains how. This simulator opens up an engine in 3D and synchronizes it with its pressure-volume diagram, so you can follow intake, compression, power and exhaust stroke by stroke. Switch between the Otto cycle of a gasoline engine and the Diesel cycle, change the compression ratio, the displacement and the load, and see how the efficiency and the power change. It is designed for students who already know some thermodynamics and want to connect the formulas with a real machine.
