Search found 13 matches

by tapkoote
Tue Jun 25, 2013 12:23 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: looking for some advice on 1st engine
Replies: 8
Views: 6035

Re: looking for some advice on 1st engine

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
by tapkoote
Sat Jun 01, 2013 10:06 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: looking for some advice on 1st engine
Replies: 8
Views: 6035

Re: looking for some advice on 1st engine

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. ...
by tapkoote
Fri May 31, 2013 10:39 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: looking for some advice on 1st engine
Replies: 8
Views: 6035

looking for some advice on 1st engine

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...
by tapkoote
Tue May 28, 2013 1:24 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: New guy's confused
Replies: 1
Views: 1653

New guy's confused

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...
by tapkoote
Mon May 27, 2013 11:45 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: low temp engine question
Replies: 4
Views: 4157

Re: low temp engine question

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...
by tapkoote
Thu May 23, 2013 6:10 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling(beta) refuses to work at all after 7 builds.. Help!
Replies: 91
Views: 46630

Re: Sterling(beta) refuses to work at all after 7 builds.. H

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
by tapkoote
Thu May 23, 2013 12:07 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling(beta) refuses to work at all after 7 builds.. Help!
Replies: 91
Views: 46630

Re: Sterling(beta) refuses to work at all after 7 builds.. H

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...
by tapkoote
Wed May 22, 2013 2:06 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: low temp engine question
Replies: 4
Views: 4157

Re: low temp engine question

Thanks if I get it to work I'll post a pic
Pat
by tapkoote
Mon May 20, 2013 3:21 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: low temp engine question
Replies: 4
Views: 4157

low temp engine question

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 :question)
by tapkoote
Sun May 19, 2013 2:35 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: where to find a primer on hot air engines
Replies: 4
Views: 3258

Re: where to find a primer on hot air engines

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.
by tapkoote
Sat May 18, 2013 2:18 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: where to find a primer on hot air engines
Replies: 4
Views: 3258

where to find a primer on hot air engines

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...
by tapkoote
Fri May 17, 2013 12:27 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: New Members PLEASE read! - OR, having problems registering, being deactivated
Replies: 511
Views: 492992

Re: "Hi" We are new here!

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