Search found 174 matches

by Trevor
Thu Jan 18, 2018 4:46 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Book about striking engine design
Replies: 18
Views: 3808

Re: Book about striking engine design

Thanks Greg - I just downloaded this digital version.
Ripper mate as I have been trying to get a copy of this for some time.
Trev
by Trevor
Thu Jan 18, 2018 3:06 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Horse power figures of some historic engines
Replies: 3
Views: 90

Re: Horse power figures of some historic engines

Good info Alfista. They were sure were heavy when they only used cast iron.
Todat with alloys and special metals weight to HP will be quite different.
Trev
by Trevor
Thu Jan 18, 2018 2:58 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Heavy or lightweight displaser for more horsepower?
Replies: 4
Views: 59

Re: Heavy or lightweight displaser for more horsepower?

Hi Wellington
A displacer that is extra light weight is very beneficial. Make it light as possible yet sturdy and do not use aluminium as the displacer as in high heat they will melt or distort badly. Ian can show you some photos of what can happen using alloy as a displacer.
Trev
by Trevor
Tue Dec 12, 2017 2:43 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Stirling powered toy car
Replies: 6
Views: 276

Re: Stirling powered toy car

HI Ian
I have tried to get 3 and 4mm in heat fused plastic belting (polyurethane I think) but with no luck in Australia.
Do you happen to know where it can be purchased, even on Ebay it is hard to find and expensive.
Maybe others are having trouble trying to find the stuff.
Regards Trev
by Trevor
Sat Dec 09, 2017 4:06 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Stirling powered toy car
Replies: 6
Views: 276

Re: Stirling powered toy car

I also have used rubber bands to drive my water pumps on my hot air engines. I have recently found some soft rubber that is used for sealing drums etc. Comes in 4mm up to 12mm. You glue it with super glues and it doesn't let go even when going around 20mm diameter pulleys under load. Better than usi...
by Trevor
Sun Oct 29, 2017 1:26 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: First Sterling Finally Running
Replies: 24
Views: 1412

Re: First Sterling Finally Running

By God! It's beautiful
by Trevor
Sat Oct 28, 2017 2:11 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: MY FINISHED MODEL Robert Stirling's Famous Hot Ait Engine
Replies: 8
Views: 525

Re: MY FINISHED MODEL Robert Stirling's Famous Hot Ait Engine

HI Ian - I like the idea of winding copper wire around the rim and then using bog to finish it. I may very well give this a go as the alloy one is much lighter than the cast one they show. I see CB came up with another good idea of using playdough and that may even work. CB if you are reading this, ...
by Trevor
Thu Oct 26, 2017 6:40 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: MY FINISHED MODEL Robert Stirling's Famous Hot Ait Engine
Replies: 8
Views: 525

Re: MY FINISHED MODEL Robert Stirling's Famous Hot Ait Engine

HI Ian Thanks. I saw a picture of the one in Glasgow assuming it was the one with the water cooler. I couldn't even find a cast iron pulley and had to use an aluminium one. I think I will need to add some more weight to it so it will turn over a bit easier. I am now working on a large LTD Engine usi...
by Trevor
Wed Oct 25, 2017 11:37 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: MY FINISHED MODEL Robert Stirling's Famous Hot Ait Engine
Replies: 8
Views: 525

MY FINISHED MODEL Robert Stirling's Famous Hot Ait Engine

Well I finally got to make my replica (or as near to) of Robert Stirling's Model of the Hot Air Engine. I bought a copy of the book by James G.Rizzo of the two engines presented to the Glasgow & Edinburgh Universities. I didn't have money to make the turned down legs and foraged these from an ol...
by Trevor
Mon Oct 09, 2017 7:22 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: First Sterling Finally Running
Replies: 24
Views: 1412

Re: First Sterling Finally Running

High mhafele Damn nice engine you built - It appears you do have insulation between the hot and cold side of the engine. I think that the cooling area (assuming it is aluminium) is a little small. With that much heat the cooling fins can't get rid of the heat. You could try using a small fan next to...
by Trevor
Thu Aug 31, 2017 3:52 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Flame eater V2
Replies: 5
Views: 1251

Re: Flame eater V2

Thahn instead of using a crank for the flame gate would a slip ring (eccentrics) to do the same job. Saves a double crank
Trev
by Trevor
Thu Aug 31, 2017 3:42 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The fastest stirling engine in the world
Replies: 9
Views: 2679

Re: The fastest stirling engine in the world

Man! I only got to 1800rpm without a load.
You guys, just blew me outa the water.
I hope one of you guys reach the magic 4000 rpm
Trev
by Trevor
Fri Aug 11, 2017 6:50 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Flame eater V2
Replies: 5
Views: 1251

Re: Flame eater V2

Hi Thanh. Very nicely put together and works sooooo well! Loved the way you made the metho burners for the engine - You have quite a few good ideas Thanh and thank you for sharing. I have never made a flame licker engine and you have just sparked my interest and it will be put on the agenda after I ...
by Trevor
Wed Jul 19, 2017 2:40 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My flame eater engine !
Replies: 4
Views: 1163

Re: My flame eater engine !

Absolutely Amazing Thanh. You have done a nice job on the machining work and I do love the flywheel. Was it easy to balance the flywheel after adding the spokes? Every time I try to make a spoke wheel, I end up throwing it away in frustration. I am now using aluminium pulleys as they are reasonably ...

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