Longboy's "THREE" Stirling Engine

This model Stirlings main feature is dual displacers with a single power cylinder. All three cylinders are 20 mm. A reversed configuration of one displacer and twin power cylinders can be made for a running engine, but whats the technique used to get it to run?

Category:

Science & Technology

Tags:

• Stirling engine
• Stirling modelbouw
• Stirling motoren
• hot air engine
• moteur Stirling
• le moteur de Stirling modèle
• двигатель стерлинга

[electrique527]

If you change the timing of the second displacer, and remove the heat there, will it act as a cooler?

Richard

[Longboy4]

...........No. A Stirling engine as a cooler has to be purpose designed and none of my models deal with cryogenic Stirling theorys. Best let the big boy commercial intrests explore these types.

[szym86]

I think You should use 2 power pistons .

More means less vibration

[Longboy4]

........Not necessarily, not even as a technical consideration in this scale. Recipricating mass is overwhelmed by flywheel mass for smooth running. And the THREE engine has a small dia. flywheel in relation to overall model size.

[sixmagpies]

I like your engine designs, but they're all so noisy.

[Longboy4]

That would be a condition of where taped. I video my models on my oak entertainment center which is essentualy a box open on one side. Models sit on top of a wood kitchen turntable. No attemp made to mask the camera microphone which is 2 feet from subject. With no backround noise or soundtrack ,everytime that piston comes down...........its like a knock on the door!

[TrashToTreasureGuy]

Phenomenal! Do you do the machining yourself? It's beautiful.

[Longboy4]

...........There is no advantage in performance here. The efficiencys and principles of Stirling construction still apply. This models 3 cyl. format shows some versatility in configuration that I haven't seen presented by other modelers here on the "TUBE".

[xxxcraigerxxx]

is there any advantage in performance over using a single displacer per cylinder?

[Longboy4]

Thanks FM777. The fan is there for eye candy rather than functional cooling. It does draw air across the radiators though.