This app contain several illustration/animation about how Mechanical Engine Motor work. Those several illustration are: 01. 4 Stroke Engine Mechanism. 02. Atkinson Opposed Piston Engine. 03. Bourke Engine Mechanism. 04. Diesel Engine 05. Flat 4 Engine Mechanism. 06. 4 Stroke Straight 3 Engine. 07. H-Engine Mechanism. 08. Inline 8 Cylinder Engine.