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Just an update
The rod one the displacer was leaking , tried a brass bush, no luck.
I think this type engine needs thin wire of fish line.
I put it aside, I've got other things to finish.
When i start again, I'll use darryl Boyd's plans for the beam engine.
Thanks for the help guys.
Pat

Thanks guys This version has no linkage in the displacer rod. So it's swing like a pendulum. On the long version of the vid the camera picked up a clicking noise I couldn't hear. I put the can to my ear and could hear the piston scraping the side. ::eek: I'm going for a lighter displacer w/linkage. ...

Seem to be getting nowhere with this tin can engine. The working piston is brass tube, filled w/ high temp RTV With a finger over the hole it won't slide down, but drops out easily. I wonder since it's inside the top, if it's not cooled enough. I even added a little water to help cool. I've done the...

I'm working on my first pop can engine, and am on the 4th rebuild. The displacer piston hits the side of the hot end when the crank rotates. It needs to be rebuilt. I'm fine with that. But some folks use a can that is sealed air tight, and some just steel wool. What is the advantage of the sealed di...

While working on my POP can engine, I received my low temp engine. It ran over an hour on a cup of nuked water, 3 hour 50 minutes on one quart nuked (2 min) H2O. Haven't the sun to heat the black pot, but did get it on the wood stove. Not enough heat differential. How ever I'm going to super glue so...

I had a power switch on the field coils, to energize the alternator.
At 80 amps it was 960 watts, there's the difference. I'd hoped to power it with steam.
But it would have required a much larger boiler and bigger wood box.
Sorry for getting off track.
Pat

To drive a car alternator you will need at least 1hp, and be able to turn it over at 2000/3000rpm, I'v got one driven by a little Villiers 2 stroke of about 1hp, it will produce 250 watts continuous, if you put the load up to 400 watts, the motor starts to sieze up after about 20 miniutes, take the...

Thanks if I get it to work I'll post a pic
Pat

I've ordered one of those cheap coffee cup engines.
I've got an old black cast iron pot in the sun in the window
it registers 87.5 degrees, think that motor will run on that?
Pat

Thanks for the heads up guys
I've got plenty of reading/ watching to do
I came across the wood stove fans, thats where
I want to end up. The wood stove runs 9 months a year, it'd be nice to
eliminate the over head ceiling fan.

I'm new to this hot air dialect. Some where there must be an explanation for the terms and styles of engines/ components. I'm picking up some of it, the books / education come at a very dear price. What are the alpha, beta, gamma styles? I believe I'll start with a pop can engine, then Darryl Boyd's...

Does this link still work?
thanks Pat

Hello folks
Interested in all things mechanical
Have built pop pop boats, must be time for a hot air engine?
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