Hot air Stirling Engine - converted air compressor

[ibercaracole]

SUPERBE realisation. Avec quelques roulements a billes ca ferai moins de bruit !Bravo.

[eloid777]

rings where removed? is run air helum or hydrogen?

[Valvechest]

@eloid777

yes, the piston rings were removed to reduce friction - at such low pressures the reduction of friction is far more important than airtiught seals,

It is simple engine, running on air at atmospheric pressure - the bottom end is open the atmosphere.

[eloid777]

@Valvechest

I like to make one but like to run it on pure hydrgen or heleum, in this case u need the piston rings...

anyone see mod like this on youtube?

[josephdupont]

that looks like a bicycle peddle.

for a bearing.. neat idea..

[potteryjoe]

while your machine lacks the fine machining of an Andy Ross machine, it certainly shows some very nice simple engineering.

thanks for giving the rest of us some hope!

[SWINGREGORY]

very cool

nice concept

[Wodenhelm]

Now build a Deathstar.

[1foxtrot70]

I like the counterwieght wired to the flywheel it gives the project a character of it's own. Execllent work!

[Kufzit]

Nice Work. You use Hydrogen or simple air?

[JoeNieroski]

Excellent system. Any chance of seeing the parts in expanded form? Or perhaps drawings of the internal structure?

[PedraumF]

Hi Valvechest,

Sent you a private message some days ago, but I know that boxes are always full of spam. So, can you take a look for me and my team? =)

Beautiful engine, congratulations.

[Jesterthought]

Yes.

Advancing the timing (of my gamma LTDs) to 100 deg or more usually increases the performance, due to leakage I think. Without rings, your leakage might be quite high, so I am interested to learn if your engine would respond to more advance.

Fyi, another layout with high leakage uses 180 deg advance - and saves a piston (search jesterthought+hot air).

[Jesterthought]

Congrats!

An interesting and very practical series of developments.

What timing are you using?

Thanks for so much More Info. Good thinking!

[Valvechest]

Thank you.

The cranks are 90 deg, but it is infinitely adjustable as the flywheel is locked to the shaft with a screw. - I assume this is what you mean by timing? it is certainly something to experiment with as I think I read that heinrici engines had a different angle.

Thanks for your interest.

[steamwally]

Fantastic! Nice work!