This is our first Stirling engine with gears. Part of the nano engine family, rather than having a crank or ross yoke arrangement to connect the pistons this engine has gears. Using gears provides some interesting advantages. Firstly it allows the con-rods to remain fairly parallel which in turn reduces friction. The gears also act as a second flywheel smoothing the running of the engine. Gamma Stirling engines are naturally unbalanced as they have 2 different sized pistons that are not in phase. Adding two relatively large masses (the gears) as a dead weight has improved the vibration characteristics.
Overall this engine is compact, blisteringly fast with an interesting gear 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.
This beautiful engine will run at over 2000 rpm on a tiny methylated spirit flame.
- Engine size: 83mm x 50mm x 115mm (3.2in x 1.9in x 4.5in)
- Typical RPM: 1600 - 2000rpm
- Weight: 126g / 0.27 lb
- Piston Diameter: 9.5mm
- Type of Stirling engine: Gamma engine
- Stroke length: 9 mm
- Crank design: Gear mechanism
- Working temperature: About 200C / 390F
- Bearings: Precision miniature ball race bearings
- Materials: Brass, graphite, borosilicate glass, stainless steel, aluminum
- Finish: Brass,anodised gamma grey aluminum
- Fuel: Denatured alcohol (methylated spirits)
- Assembly: Preassembled
- Required tools: None. Screwdriver supplied
- Manufacture: Almost all parts CNC machined
- Testing: Each engine tested before dispatch
- Designed & Made in: England