Search found 143 matches

by Wellington
Fri Feb 02, 2018 12:36 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Cant find old website
Replies: 5
Views: 1243

Re: Cant find old website

Ian S C wrote:The German site that I know of would be that of Bohm Stirling Technic, they make a number of novelty Stirling Engines......
Thanks Ian. A real nice website. They must have spent years honing their craft.
Wellington.
by Wellington
Thu Feb 01, 2018 8:09 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Cant find old website
Replies: 5
Views: 1243

Cant find old website

I once remember seeing a website that sold a huge selection of stirling engines in the links section of this forum. I think it was a german website. Does anyone know the site i mean?
Thanks
Wellington
by Wellington
Mon Jan 29, 2018 10:05 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Best Role for Alpha, Beta and Gamma Stirling Engine Configurations?
Replies: 3
Views: 1257

Re: Best Role for Alpha, Beta and Gamma Stirling Engine Configurations?

Ian S C wrote: Probably the best motor to start with is a V type GAMMA motor
Ian S C
Hello Ian. What is the difference between a v type gamma and a v type alpha?
Wellington
by Wellington
Wed Jan 24, 2018 1:49 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: RPM speed controller
Replies: 1
Views: 1167

RPM speed controller

I need a super simple way to control the rpm on a horizontal alpha engine so as to not overcharge a battery. I've seen centrifugal governors on steam engines but these require machine shop tooling to make. Is there a super simple way to control rpm mechanically without machine shop tooling? Thanks W...
by Wellington
Wed Jan 24, 2018 1:14 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: alpha engine question
Replies: 3
Views: 1169

Re: alpha engine question

Well with alpha, both pistons and cylinders can be identical on same crank pin 90 apart. Displacer is misnomer here. Either hot or cold piston. ]# Its a horizontal engine that looks like a gamma so no right angle to put on same pin. Im trying to copy this engine: https://www.youtube.com/watch?v=w5R...
by Wellington
Wed Jan 24, 2018 9:27 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: alpha engine question
Replies: 3
Views: 1169

alpha engine question

Im currerntly building my first engine. Its a horizontal unpresurised mini alpha engine. How should i ofsett the crankshaft? does the displacer piston go 90 degrees ahead of the power piston? Thanks
Wellington.
by Wellington
Mon Jan 22, 2018 11:56 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to create a stirling cold cycle?
Replies: 8
Views: 1604

Re: How to create a stirling cold cycle?

Ian S C wrote:As Wellington says, turn it in the normal direction......
Ian S C
thankyou Ian
by Wellington
Mon Jan 22, 2018 11:55 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to create a stirling cold cycle?
Replies: 8
Views: 1604

Re: How to create a stirling cold cycle?

Alfista wrote:Wellington,

If you drive a gamma engine in the direction of normal rotation, with the displacer leading by 90 degrees...........
Thanks Wayne
by Wellington
Sun Jan 21, 2018 10:05 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to create a stirling cold cycle?
Replies: 8
Views: 1604

Re: How to create a stirling cold cycle?

After I built my Ross Yoke ALPHA motor, I joined it via a belt drive the one of my other motors, and over about 20 minutes I let them run. The ambient temperature at the time was +20*C, and at the end of the test, the end of the hot cap on the ALPHA motor was -20*C, a drop of 40*C, no doubt that if...
by Wellington
Sat Jan 20, 2018 7:51 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to create a stirling cold cycle?
Replies: 8
Views: 1604

How to create a stirling cold cycle?

Can anyone explain the basics or provide a link on how to make a stirling refrigerator.
Thanks
by Wellington
Fri Jan 19, 2018 12:48 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Heavy or lightweight displaser for more horsepower?
Replies: 5
Views: 1334

Re: Heavy or lightweight displaser for more horsepower?

Wellington, yes use light weight steel, or stainless steel. Weight just causes extra friction.................... [img] DSC01133%20(800x600).jpg [/img] Yep. I imagine the friction would go up. On another note: I remember once seeing a german website which sold lots of different stirling engines but...
by Wellington
Fri Jan 19, 2018 12:46 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Heavy or lightweight displaser for more horsepower?
Replies: 5
Views: 1334

Re: Heavy or lightweight displaser for more horsepower?

Trevor wrote:Hi Wellington
A displacer that is extra light weight............
Trev
Thank Trevor. will steer clear of aluminium displacer.
regards
Wellington
by Wellington
Thu Jan 18, 2018 6:14 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Heavy or lightweight displaser for more horsepower?
Replies: 5
Views: 1334

Heavy or lightweight displaser for more horsepower?

Hello all. i want to build a stirling that produces good horsepower. Should i use a light weight displacer or a heavy displacer?
Thanks All. Regards
Wellington.
by Wellington
Wed Jan 17, 2018 7:54 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: water jacket for hot end
Replies: 4
Views: 1111

Re: water jacket for hot end

It would have no comparison with an engine heated by a meths burner, the water jacket would have a maximum temperature of 100*C .......... That's good to know. I was starting to think i would need lots of pricey tubing. I've been looking at the twin syringe engines. They appeal to me because they h...
by Wellington
Tue Jan 16, 2018 9:50 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: water jacket for hot end
Replies: 4
Views: 1111

Re: water jacket for hot end

Hello Has anyone any advice to offer regarding the idea of putting a water jacket around a stirlings hot end to heat the hot end with heated water from meth flame?. Ive seen stirlings running in cups of warm water before and am curious to know how performance will compare to heating the hot end dir...