Principle of the gas-filled piston Stirling engine
1. The bottom gas is heated and the gas distribution piston moves upwards.
2. The gas in the upper part of the gas distribution piston is pressed, part of which pushes the movement of the power piston, and part of the gas from the gap enters the bottom of the gas distribution piston to continue to push the gas distribution piston.
3. The power piston rotates to drive the flywheel, and the flywheel drives the gas distribution piston to move downward.
4. The gas distribution piston presses the gas into the upper part, the gas is cooled and contracted, and the gas distribution piston rises to complete a cycle.