The momentum of a flywheel then helps the piston compress the cooled gas, preparing it for the next heating cycle. 2. Core Components

The engine operates on a temperature difference between two zones: a and a cold sink .

A displacer piston moves the gas to the cold side of the engine, where it cools and contracts.

A Beginner's Guide to Stirling Engines : 8 Steps (with Pictures)

This high-pressure gas pushes against a power piston , which converts the movement into mechanical work.