I was wondering if it would generate enough heat in the water to cause a thermal siphon effect. I think that would be the best way, circulating the water around. I have seen some of Jerry Howells...
Type: Posts; User: nick.gilling
I was wondering if it would generate enough heat in the water to cause a thermal siphon effect. I think that would be the best way, circulating the water around. I have seen some of Jerry Howells...
John,
that is a good idea but how will the water circulate though without a pump? I don't think the engine would be powerful enough to drive anything!
That's why I was thinking a jacket that...
Hi John,
I thought of trying to seal the arrangement I have with 'o' rings but it never occured to me to use a brass tube.
I could find some o rings that are too big to go down the slots so...
Hi all,
Another update on my first stirling engine. I've now made a burner and a wooden base. You will be able to see that woodwork is not one of my strong points but it is OK. Also made a...
Quick update on this engine. I bored out the displacer cylinder to 9/16" and made a new hot cap and displacer piston 1/2" diameter. This now gives a ratio of swept volumes of 1.78:1 instead of 1:1...
Hi KDT1,
Firstly, your engines are magnificent! I can only dream of 1 day being able to produce such a piece of work!
I am determined to either get this one running or start from scratch as I...
Hi Eric, your engine is looking great and am sure it's only a matter of tinkering with settings and sorting out any leaks before it runs.
If it's any consolation, my far far less complicated...
Hi all,
As you know, I have been working on my hot air engine very sporadically since the new year, well, before that if you include the design stage. I have just finished the last parts and...
Hi hill dude, did your stirling work? I've just finished mine ... I know, it's taken a while (see in other thread). Mine didn't work, I think the ratio of swept volumes is too small!
Nick
That's true, I will be so pleased if it works, but if it ends up a static model, at least I'll have learnt a lot!
ps Just seen the photos of your assembly and I've got a long way to go to get...
Just a quick update, I started making the displacer cylinder on a lathe at a model engineering club I go to. The wife has put a big side cabinet right down the centre of my garage leaving it...
Hello all,
well you probably thought I'd forgotten about this, the fact of the matter was I just had no motivation to get out in the garage and start making some bits. I completed the drawings a...
looking good Eric, I've started on my hot air engine too but forgot to take photos from the start but suppose I could show what i've done so far!
Sorry, forgot the link:
http://heetgasmodelbouw.ridders.nu/
Hello,
this site is brilliant, the guy has put up plans for flame lickers, stirlings and I.C engines he has designed and made.
Looks very smart indeed! Will have to watch the vid later, won't let me at work!
Yeah that's the way to do it, either have a system where you can drill right through the cylinder and plug the outside hole (then they'll be spot on) or calculate where they should go and make it as...
Oh in that case it was a good idea to avoid making new components. I am sure you will find it will run much better now.
The flywheel looks fine. If it still doesn't run freely and on a low...
What is your bearing material and crankshaft made from? Brass or bronze would be good for bearing with steel crank.
Why did you go to the trouble of making liners for cylinder and piston? it would...
John,
A piston valve engine sounds interesting I was toying with the idea myself but decided I want to make a stirling engine instead.
How does the valve usually seal? Presumably it has some...
Very nice smooth runnning engines there, great job.
Hi John,
thanks for the info again, of course the power take off can't come of the centre shaft! I wasn't thinking straight when i said that! I just glanced at the drawing and assumed that.
The...
Hi John,
thanks for that, it answers another question I though of, was there any kind of power take off. But it seems that it come out of the centre of one of the crank discs.
What I meant...
That is really nice work. Have the drawings got tolerances on them if the parts are interchangable or have you applied your own? Will you be fitting the pistons to cylinders or just machining a batch...
Think he's thinking of that other site, some forum that you now have to pay to join.
Hi John,
I've always liked the look of the Whippet engine and fancied giving it a go.
When I first got into the hobby when I was about 15, I bought the Woking Precision Models catalogue and...
They look excellent. I thought of doing a batch myself and selling a few off!
A surface grinder is a nice luxury to have and gives a very professional look and is obviously better than rubbing on...
Hi, thanks for that. They look impressive, I will have a better look tomorrow to see if I can get some ideas!
Thanks Eric, I'm fairly happy with it, there's a couple of mistakes and a design floor which hopefully I'll learn lessons from but apart from that it's not too bad.
Next project is either a flame...
Hello all, had my engine running properly tonight. I remembered that someone mentioned using a CO2 bottle from the mig welder. Hooked that up and it worked pretty well. I didn't have a pressure gauge...