Search found 193 matches

by Trevor
Sat Nov 12, 2016 9:53 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling Diaphragm Engine
Replies: 97
Views: 31518

Re: Sterling Diaphragm Engine

Redoing my displacer for the engine. Looks a bit rough but it is only a cage to hold the stainless steel wool. The one I had made earlier was made from two inverted tuna tins but had to much side clearance which was going to be a lot of dead space, hence, the redesign. Has anyone else used this cage...
by Trevor
Sat Nov 12, 2016 3:21 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling Diaphragm Engine
Replies: 97
Views: 31518

Re: Sterling Diaphragm Engine

These are all the pictures as of tonight. Having problem making the crankshaft with a bell crank design so going back to the old way. I have ordered the brass flat bar stock to make the the crank throws. Maybe a couple of weeks or so should see this up and running with luck.More photos will follow a...
by Trevor
Sat Nov 12, 2016 2:23 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling Diaphragm Engine
Replies: 97
Views: 31518

Re: Sterling Diaphragm Engine

OK I think I have it. These are the diaphragm.
Trev
by Trevor
Sat Nov 12, 2016 2:08 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling Diaphragm Engine
Replies: 97
Views: 31518

Re: Sterling Diaphragm Engine

Hmm! Ok Ian - How did you put in the image. It didn't seem to work for me.
Trev
by Trevor
Sat Nov 12, 2016 2:06 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling Diaphragm Engine
Replies: 97
Views: 31518

Re: Sterling Diaphragm Engine

OK! the image thing doesn't work. I will try the attachment and see if it will go in. At least you will see the diaphragms I hope.
Trevor
by Trevor
Sat Nov 12, 2016 2:01 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling Diaphragm Engine
Replies: 97
Views: 31518

Re: Sterling Diaphragm Engine

Beautiful Cat. Thanks Darryl
by Trevor
Sat Nov 12, 2016 2:00 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Book about striking engine design
Replies: 18
Views: 8567

Re: Book about striking engine design

Nice on Ian.
Trevor
by Trevor
Fri Nov 11, 2016 4:58 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Engine vacuum
Replies: 22
Views: 9058

Re: Engine vacuum

Thanks for that Ian. Yep just out of Cairns but a long way from NZ.
Brass is a product that I still can get. Thanks for putting me onto the right stuff as I have had a lot of problems using aluminium.
Trevor
by Trevor
Fri Nov 11, 2016 4:54 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Book about striking engine design
Replies: 18
Views: 8567

Re: Book about striking engine design

I have the same book,. Just arrived today.
It is one of the best books I have read in a long time and am excited about the crank system.
Trevor
by Trevor
Fri Nov 11, 2016 4:45 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling Diaphragm Engine
Replies: 97
Views: 31518

Re: Sterling Diaphragm Engine

Whoops! looks like there will be no photos or attachments then. I am into making the crankshaft now as all the rest is basically done. Painted even. The crank is going to be difficult as I it is a beta Sterling and I am thinking of using a bell crank. Can't find an actual formula for it so I am goin...
by Trevor
Fri Nov 11, 2016 12:18 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Sterling Diaphragm Engine
Replies: 97
Views: 31518

Sterling Diaphragm Engine

Hi all - I am nearing the end of completing my diaphragm Sterling engine. I have seemed to have worked out the throw for the diaphragm and wondering if anyone else has tried this idea on the forum. I have looked at a couple of videos of Approtechi Utube ones and they seem pretty impressive. I have f...
by Trevor
Fri Nov 11, 2016 12:09 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Engine vacuum
Replies: 22
Views: 9058

Re: Engine vacuum

Hi Ian. I too am going to make a flame flicker and was thinking of using aluminium as the cylinder, however, I see this should not be the case.
Can you use steel for the cylinder and use aluminium for the piston? It is hard to get cast iron here in Atherton or anywhere close here.
Trevor
by Trevor
Fri Nov 11, 2016 12:02 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: "Hi...We are new here!" First posts here (or anywhere is OK)
Replies: 437
Views: 138091

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Hi all. My name is Trevor and I have had some difficulty getting in, but I am please to say Darryl Boyd helped me to get here. I am a retired desal engineer who is interested in Hot Air engines and have made a few different types, these being small and mostly of aluminium. Just recently made one of ...