Model of IC engine with radial pistons - is made of cardboard and driven by DC motor supplied from solar cells

摘要

The model engine has its dc motor shaft (7) linked to the radial piston rods (11) and supplied from silicon solar cells (3). The engine is made by cutting its components from coloured pieces of cardboard or plastics. The solar cells can be moved for aligning with the sun. The solar cells charge a small battery.