K999 Stirling Engine Generator – Silver Working Heat-to-Electricity Model

23 × 13.5 × 16 cm / 9.1 × 5.3 × 6.3 inch
Metal and Glass

Heat-to-Electricity Conversion — Demonstrates thermal, mechanical, and electrical energy conversion in one working system.

High-Speed Operation — Reaches approximately 1,700–2,000 RPM under suitable operating conditions.

Instead of relying on high-pressure steam, the Stirling engine used external heat and a sealed working cycle to create motion. It was an elegant mechanical idea: apply heat, create a temperature difference, move a piston, and turn a flywheel.

More than two centuries later, that principle is still fascinating because the process can be seen. The K999 takes the idea one step further.