Stirling Engine KT09

Engine details:
9.5mm diameter graphite piston
116mm long borosilicate glass tube
32mm diameter brass & aluminium flywheel
Solid aluminium base plate
This engine operates from a tiny methylated spirits (denatured alcohol) flame, optimum running speed is 2700rpm when warmed up fully. As far as we know this is the fastest thermo-acoustic engine available.

The thermo-acoustic engine is known by several names, including resonant engine, lag engine and lamina flow engine. This engine, with its transparent main tube, beautifully and elegantly demonstrates the principles behind such engines.