Fast Homemade LTD Stirling Engine

[Near9312]

hi, one question, how you made the power piston?

[asdafasable]

nice one! can you teach me?? :P i am a mechanical engineer! :)

[dragongnosis]

Awsome! Very cool engine!

[PyroCube]

WOW!

Congratulations, one of the best LTD engines

I`ve ever seen!

lg

[glock287]

Can it run without a piston ?

[pret83]

Jo kis stirling motor. Ez is grafitos? Honnan lehet grafitot kinyerni a csapagyozasahoz?

[csizmarikg]

@pret83

Hello

ez üveggolyós csapágyazású

Grafitot szénkeféből nyerek ki

Üdv

[amermahdy70]

@csizmarikg Hi Nice work, i hope you've done a powerfull engine by now :) what is the piston is made of?

[0030chris73]

Wow!!! Realy fast!

[r1zerHUN]

Hali

Miből csinálod a menbránt? Már idegileg kikészít, hogy nem tudok csinálni egy rendeset :D

[csizmarikg]

@r1zerHUN HALI

Orvosi kesztyű, de nem gumi, hanem vinil az anyaga (ez vékonyabb, valamivel kevésbé rugalmas és legalább két évig bírja

[davbelloli]

Really good, but what version in photologie have you modified?

[Earthbound64]

0:21 the sucking thing in the background what does it do? Is it just movement puffer or this is suck the air in the bottom? I don't understand what is does! THX for help :(

[ilovetosm420ke]

what is your displacer?

[ilovetosm420ke]

for the "piston" in the back end of this model, is the piston head casing open to the chamber in the bottom. or are they seperate? like is there something in b/w the white thing in the back and the main chamber in the bottom

[PAFAWAG1]

"Thermodynamics is my love" - Andre Chapelon, French steam locomotive genius. And he was right...

[Backwardsman97]

I'm so interested in this but I can't seem to figure out how these work to make one at home. Is the piston-like part under pressure?

[csizmarikg]

@Backwardsman97

Hello!

Check the website in the description.

[cids7777]

can it work from solar heating

[csizmarikg]

@cids7777

Hello,

Yes it can, but my other engine is better for solar energy

[cristiancc1997]

I AM VERY INTERESTED IN STIRLING ENGINES, BUT

WHAT USES CAN YOU GIVE TO THIS ENGINE , LIKE , TO MAKE IT DO A FUNCION.?

CAN THIS ENGINE WIN A MUNICIPAL SCIENCE FAIR?

[csizmarikg]

@cristiancc1997

Hello!

On my other video you can see the generator version. With a glass of hot water you can make electricity.

On my another video the engine works with less than 2 °C temp differential.

It is good for a youth contest

Bye

[plavins1]

what are you using for bearings and crackshaft?

[csizmarikg]

@plavins1

Hello!

piston and displacer rod is 0.8 mm steel wire,

Main shaft is 3 mm steel wire,

crankshaft is 1.5 mm steel wire

there are miniature ball bearings on main haft and crankshaft.

However you can replace the bearings with glass pearls.

In this case the shaft are made of 0.8 mm steel wire.

[plavins1]

@csizmarikg could i not use bearings at all?i could poke holes in sheet metal and run crankshaft through that.

[csizmarikg]

@plavins1

Yes, you could, but glass pearls are better in my opinion

[wirelessmantis]

soo f... cool:D! going to try this

[asdfkjaskldalsdfa]

That's funny! small but faster!

[impazzitoinvolo]

Very fast!! Congratulations!

How many rpm at top velocity?

[csizmarikg]

@impazzitoinvolo Thank You!

I cant measure directly, but by visualization of the sound of the engine, the top RPM is about 800.

My improved ultra LTD engine reaches 1000 RPM

[gilbondfac]

good work

[csizmarikg]

@gilbondfac

Thank You!

[oviedoglass22]

yes I see now you are using scotch brite? how much does this help?

[csizmarikg]

@oviedoglass22

Yes it is. Helps a lot. Check my other engine, the "Ultra LTD and Ultra Fast" video.

That is depron with regenerator disks.

[oviedoglass22]

what is your displacer clearance? it seems that to run that fast it could not be too close due to air drag. or must it stay close for efficiency?

[csizmarikg]

@oviedoglass22

You think right, however the clearance is only 1 mm. The secret is, that the displacer is porous for a regenerator effect. It also successfully reduce drag.

[zapoman27]

Great ! Please tell me about the power piston.Thanks

[csizmarikg]

@zapoman27

The power piston is made of a credit card and the membrane is made of medical glowes. The power cylinder is made of an old film box.

[derman077]

I wonder if a music cd could be read with a laser microphone this way, lol

[csizmarikg]

@derman077 :):)

[miniburbs]

Thats great to know i was planning on doing that, i am making one of these for a project, do you have any insight on the engine? any hints or materials etc.?

[csizmarikg]

If this will be your first project, I suggest the Roussel engine v1.0. It is made of the simplest materials, and works really well. You can check his website, there is english translation as well.

[specallez]

@csizmarikg Do you have a link t his website ?

[csizmarikg]

@specallez Itis in the description

[specallez]

@csizmarikg Sorry! I should have checked there first :|

[miniburbs]

what did you use to mount the cd as a flywheel? how is it connected so nicely.

[csizmarikg]

I have used wooden disks for mounting.

A small cheat: the main shaft has ball bearings.

[highdeserthater]

thats like 1200 rpm! fast little bugger!

[csizmarikg]

Possible, I have no RPM meter.

The RPM was estimated by the sound of the engine

[cool70200]

very nice

[csizmarikg]

Thanks!

[SamIves85]

Whoa! It goes mental when you put it on the cup of hot water! So how long did it go on for before it stopped?

[csizmarikg]

It depends on the thermal isolation of the cup. As it is, the engine runs several hours (about 5 or so), if a thermos is used, the engine runs 12 hours.

[SamIves85]

Wow that's a pretty long time! Imagine what you could hook this up to like cogs and stuff =]

[csizmarikg]

Robert Stirling has patented the engine in 1816, the engine itself is older, Stirling made the regenerator improvement.

[guradao]

they did nearly a century and a half ago!

[muddymuddymuddmann]

@guradao THE STIRLING PRINCIPAL WAS USED TO OPEN THE GATES TO THE TEMPLE IN ROME 400 BC.

JUST THOUGHT YOU WOULD ENJOY THAT ONE.

MUDDy

[psycho2061]

the stirling motor is one of the oldest motors ... it´s a little to late to patent it^^

[srymodell]

Gratulálok ez szépen ketyeg. Üdv.: SRY

[nkzero04]

how did you do that? . . tsk

[csizmarikg]

By hand and handtools:)

Thanks

[csizmarikg]

thanks

My other engine is better and more silent.

[pali52]

Isteni sebesség! Szeretném utolérni, de szétesett a gépem.

Gratulálok!!

[csizmarikg]

Köszi!

[tikifish28]

what did you use for the displacer and the power pistons?

[csizmarikg]

displacer: Brite Scotch, or similar material for regenerator effect

Power cylinder: a film box

piston is cut from a credit card, membrane is made of medical gloves

[impazzitoinvolo]

Wow! Very Fast realy.Congratulations! How many RPM??

[csizmarikg]

1200 RPM

[aeropic]

Woohahoo ... this one is incredibly fast

congratulations again (rated five stars ;-)

Alain

[csizmarikg]

Thank You

[bg0821]

ok, how do you get to that site. I tried photologiedotcom and it didn't work only other things where are the plans found?

[bg0821]

woo hoooooooo!!!!!! I don't believe no other comments on your nice job there look at the rpms that sped up to when you poured the hot water. I tried to build one of these myself. I used epoxy resin to make the small piston inside of small pvc tube coated with vegetable oil so it wouldnt stick but would form the piston. the syrofoam larger piston wasnt right and I need to get back to the project oneday. anyway thats great job there.

[csizmarikg]

Thanks a lot!

The engine was built by the plans of the photologie site.

Give it a try, its excellent!

[bboy310]

well could you give us a link to the site so we could try it. thanxs would be really appreciated