Lamina flow engine

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Chicken

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Dec 27, 2012
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Hi!

Usually I build IC engines, but as I have never built any hot air engines, I thought to give it a try. The lamina flow or thermoacoustic engine is probably the simplest engine to build. This project took only 1 day to build. The most challenging part was to find a perfectly round test tube and a friction free bearing for the flywheel. I used an old hard drive bearing from a computer hard drive. The piston is made out of brass and was polished after the lathe work. These engines must run oil free to avoid friction.
The engine worked right away and did not need many adjustments. It will run about 30 minutes with 10 mL of ethanol.

[ame]https://www.youtube.com/watch?v=XD4Q2bxEBYU[/ame]

best regards,
Alex
 

AussieJimG

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Oct 17, 2010
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Well done Alex, I build one that worked both with a flywheel and as an oscillating engine. And now it doesn't and I don't know why. They are tricky little engines.

Jim
 

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