This was conceived as a ‘nano’ version of our popular KG09 Stirling engine. The engine has the usual displacer and power piston arrangement, but the two pistons are placed further apart using a tube. Placing the power piston at 90 degrees to the displacer piston, allows the two con-rods to share a common crank pin. Which simplifies the crank design.

Overall this engine is compact, blisteringly fast with curious tube arrangement.

As with all the nano range it comes with a special burner, you just light the burner, let the engine heat up and then give the flywheel a small flick to start. The engine has borosilicate glass cylinders which can withstand high temperatures enabling you to glimpse inside the engine.

A low-friction graphite piston was utilised which is self-lubricating and requires no maintenance. A brass heat sink disperses heat from the cold side, while the rest of the engine is made from anodized aluminium.

Engine size	83mm x 50mm x 115mm (3.2in x 1.9in x 4.5in)
RPM	upto 2200rpm
Weight	126g / 0.27 lb
Piston Diameter	9.5mm
Engine type	Gamma engine
Stroke length	9 mm
Crank Design	Crank + tube
Working temperature	About 200C / 390F
Bearings	Precision miniature ball race bearings
Materials	Mainly glass, brass, stainless steel, aluminium
Finish	Brass, anodised grey aluminium
Fuel	Denatured alcohol (methylated spirits)
Assembly	Preassembled
Required tools	None
Manufacture	Almost all parts CNC machined
Testing	Each engine tested before dispatch
Designed & Made in	England