Was thinking the same. Such a beautiful piece of machining and model engineering, and yet it feels like a better connection method to the swash-plate would have made the engine quieter and more sturdy. Perhaps some type of CV joint connector. Not sure what one would call a non-rotating CV joint?
8 burners, 8 pistons, 8 displacer pistons= 8 Cylinder Stirling. Interesting swash plate application in this 8 cylinder Stirling. Running without a proper flywheel is also unusual . Thanks for sharing.
"8 independent sets of two cylinders" there are 16 cylinders.
5 лет назад+23
Lotsa pretty machine work, fun to watch it run. Pity there are always so many comments from "experts" who miss the point entirely and are probably challenged by driving a nail into a board.
if the fan blades were bigger, it might cool the front down more, and that would give it more power, according to the principle it operates on. Then it would need a shield around the back cylinders, though, i think. And it sounds like it needs some grease, too.
Yes, additionally the transmission is highly inefficient. It relies on direct contact bearings, and could do with some linear bearings in a large, production model.
Brendon Espinoza i saw a design for a combustion engine that pushes the piston in both directions... it produces constant power more like a EM motor or something... that might be a way to get the Stirling to produce more... work load, or torque.
Brendon Espinoza i looked and there are designs for rotary pistons, which is what i saw, i think, and also opposed diesel engine pistons, which looks kinda like this but maybe not. I watched your last vid and i see the comments are already thinking like i was... i like the idea of putting it in a compression chamber, or containing the space around it, making use of the air being pumped out or in, but it might work better if you simply stood it upright, or, facing down, idk... The burners are evenly heating it but it might work better if the heat was contained and cold air could not go in at the bottom.
There is a way to improve the efficiency of this nice engine: The front "cool" cylinders are not within the propeller airstream. One needs to change them by props with a much smaller hub so that cool air is really reaching these cylinders (they are currently resting in the wind shadow of the decorative nuts. Efficiency of a Stirling engine is directly proportional to the temperature DIFFERENCE between both cylinders !
This is amazing Just so utterly awesome you made this. I love creations that operate with very little input to them and they just work... It's beautiful and elegant
Do us a big favor and get a bunch of different angled propellers with the same mass and diameter. Build a stream tube for your engine, then measure the difference in speed at both ends. That way we can find it's power output at multiple different frequencies and map it to hopefully find it's maximum power output.
interesting. pretty unusual but nice design,might make it faster to use water on one side and have the flames in a sealed container (with a vent on one a side.)
Do you have any suggestions on one that ran one time and will not take off again? I just received mine and it ran great for the first light off. Then nothing. it acts as if it wants to run but peters out to a stall.
As you said not efficient but still interesting, what if you used the flames to generate steam and hook it up to a Tesla turbine? Also if the propeller drove some of the air into a duct that channels back to the turbine?
Not much, sterling engines have very little torque, and considering how much fuel is used the energy you'd get back youd be similar to charging you phone from a planes USB port
@@JackSwatman there ways around the torque problem but i don't think it will get better amp than a hand crank. -you could use a chunk of brass that you put in your whood stove to heat it up (that would start it) then keep running with a candle
Is there a way to contact you? I am a student trying to build an engine myself but I do not know the specifics that well. I was hoping that you can help
I made one when I was like 13 or 14 out of coke cans steal wool and coat hangers. It ran off of a tea light and ice water. There are a view tutorials on how to build them on youtube. They can be a bit finicky to get working but they are not crazy hard to make and do not require tones of precision.
Try very fine sand (e.g. stealing from your bird cage for an hours); works perfectly . BUT, be ensured that both ends of the sand-filled tube (shake it well before) are ABSOLUTELY CLOSED (LEAK-FREE) !
G’day Latheman, you put a great amount of work building that engine, excellent work. Is the sound I hear the conrods clacking? I couldn’t see too well the swashplate to piston connection. Cheers Peter
Power is just a scaling problem. The real issue is the power/weight ratio. They can be comparable to IC engines in efficiency. (this one is just badly designed)
for when you have wood, you've used all the wood gas and now you only have charcoal. ofc if you have gas this is inefficient because it doesnt harvest the expansive power of rapid combustion, but as i outlined sometimes you only have solid fuel
thanks for posting. here are some things to consider. the inherent Inefficiency of such a multi-heat engine design, makes it one that should Not be emulated. other commenters have noted the excess play in the linkages. this engine has a flywheel, that is shaped like a propeller; and it is NOT effective as either. this engine is just barely running; and would be able to do zero work. it is probable that the MASS of the cold pistons has Not been optimized/minimized. the need for the end of Any displacer cylinder to be 'red hot', indicates the presence of major Inefficiency Issues. the use of a swashplate, in a POWER transmission application, is just plain stoopid. in part, because it IMPOSES a timing on a group of heat engines. here, the Mass of the brass swashplate guides (and heavy pistons) Further Reduces engine efficiency. (see link, for info about mass damping/governor. this is NOT what you want. vibration damping is NOT the same as balancing.) the EFFICIENT combining of the outputs of multiple heat engines is NOT a simple thing. it should be Understood that a correctly designed htd heat engine will operate, with the heat from a candle flame; about 1000 degrees c. this temperature does NOT produce a 'red hot' condition in metal (or glass). googletranslate en.wikipedia.org/wiki/Governor_(device)
Those linkages in the middle are painful.
Only when you try to have sex with them....
Sounds like a diesel
Fragile
Was thinking the same. Such a beautiful piece of machining and model engineering, and yet it feels like a better connection method to the swash-plate would have made the engine quieter and more sturdy. Perhaps some type of CV joint connector. Not sure what one would call a non-rotating CV joint?
I think this is BOTH cool and hot. 👍
I get it
Your videos are giving me a bit of a fascination with stirling engines!
Same here I seen this one for sale looks beastly.
Good, they're fun to make. You should try if you get a chance
8 burners, 8 pistons, 8 displacer pistons= 8 Cylinder Stirling. Interesting swash plate application in this 8 cylinder Stirling. Running without a proper flywheel is also unusual . Thanks for sharing.
The propeller acts as the fly wheel
"8 independent sets of two cylinders" there are 16 cylinders.
Lotsa pretty machine work, fun to watch it run. Pity there are always so many comments from "experts" who miss the point entirely and are probably challenged by driving a nail into a board.
Well done. I've only heard of Sterling engines. But now thanks to you I know how they work.
Good job!
if the fan blades were bigger, it might cool the front down more, and that would give it more power, according to the principle it operates on. Then it would need a shield around the back cylinders, though, i think. And it sounds like it needs some grease, too.
Yes, additionally the transmission is highly inefficient. It relies on direct contact bearings, and could do with some linear bearings in a large, production model.
Brendon Espinoza i saw a design for a combustion engine that pushes the piston in both directions... it produces constant power more like a EM motor or something... that might be a way to get the Stirling to produce more... work load, or torque.
Brendon Espinoza You sounded sad in the video, i want to say Don't be discouraged. The adventure is in the journey!
Brendon Espinoza i looked and there are designs for rotary pistons, which is what i saw, i think, and also opposed diesel engine pistons, which looks kinda like this but maybe not. I watched your last vid and i see the comments are already thinking like i was... i like the idea of putting it in a compression chamber, or containing the space around it, making use of the air being pumped out or in, but it might work better if you simply stood it upright, or, facing down, idk... The burners are evenly heating it but it might work better if the heat was contained and cold air could not go in at the bottom.
O yeah smart ass
Brilliant! Thank you for this amazing demonstration.Mechanical art at it's best
I find this surprisingly satisfying to watch!
Beautiful piece of art incredible craftsmanship
There is a way to improve the efficiency of this nice engine: The front "cool" cylinders are not within the propeller airstream.
One needs to change them by props with a much smaller hub so that cool air is really reaching these cylinders (they are currently resting in the wind shadow of the decorative nuts.
Efficiency of a Stirling engine is directly proportional to the temperature DIFFERENCE between both cylinders !
This is amazing
Just so utterly awesome you made this. I love creations that operate with very little input to them and they just work... It's beautiful and elegant
Do us a big favor and get a bunch of different angled propellers with the same mass and diameter. Build a stream tube for your engine, then measure the difference in speed at both ends. That way we can find it's power output at multiple different frequencies and map it to hopefully find it's maximum power output.
Great build
could you please make a video that has a disassembly of that engine?
Coolest sterling engine I've ever seen.
Love it! Very cool! I’m checking out some more!
Have you had any problems with it so far? And how often have you used it? Great video
Modern steampunk.. very cool
stirling engines are so fucking cool, I love that we use them in space too. NASA has a pretty neato stirling engine design!
Stirling Engines are the most efficient engines, not poor.
Any idea what the power to weight ratio is? It is cool regardless.
interesting. pretty unusual but nice design,might make it faster to use water on one side and have the flames in a sealed container (with a vent on one a side.)
Do you have any suggestions on one that ran one time and will not take off again? I just received mine and it ran great for the first light off. Then nothing. it acts as if it wants to run but peters out to a stall.
As you said not efficient but still interesting, what if you used the flames to generate steam and hook it up to a Tesla turbine? Also if the propeller drove some of the air into a duct that channels back to the turbine?
Does it have to be butane powered? I mean would it still work if I placed a bunsen burner under the cylinders?
Just seen this one and was thinking of buying it looks great.
Maybe I missed it, but why the 90° phase offset?
Awesome work!
Have you tried pressurized vessels for higher power/weight ratio?
I bet it makes hella power bro
Hi
Have you thought about the heat from a vehicles exhaust or cooling system
From were did you got this Stirling engine or you made it if you made it please make a video on this Stirling engine
Murali Rao you can buy it on aliexpress, ebay, amazon. Just look it up on google, he did not make it
Nice video sir you perches this engine _ please send me the link
is it art or is it engineering?
Yes
50-50
Never seen a Stirling Engine requiring Red hot cylinder caps
Awesome!
so in other words, dead volume means very low compression?
At least you wont have to worry about it taking off from your desk at full throttle ;-)
Very impressive!
Interesting model
instead of a propeller if you used a electric motor as generator, i wonder how much electricity you could make?
Not much, sterling engines have very little torque, and considering how much fuel is used the energy you'd get back youd be similar to charging you phone from a planes USB port
@@JackSwatman there ways around the torque problem but i don't think it will get better amp than a hand crank.
-you could use a chunk of brass that you put in your whood stove to heat it up (that would start it) then keep running with a candle
@@JackSwatmanthis will turn your sterling engine into a ac version Peltier device
You need the prop for cooling the front eight cylinders, but of course it is possible to add a small generator, as well why not? !
Looks amazing :)
Brilliant Engine
HOW MUCH POWER OUTPUT?
Is there a way to contact you? I am a student trying to build an engine myself but I do not know the specifics that well. I was hoping that you can help
He bought it from china...
I made one when I was like 13 or 14 out of coke cans steal wool and coat hangers. It ran off of a tea light and ice water. There are a view tutorials on how to build them on youtube. They can be a bit finicky to get working but they are not crazy hard to make and do not require tones of precision.
Well done 👍
ASMR Stirling engine narration
What is it's weight to power ratio? I am thinking pretty low.
Well, it's a sterling, so...
I'm almost certain that there's no succinct way to describe the motion of the swatchplate.
Oscillating.
some kinked tubes there. try filling with ice before bending next time.
That's a good idea, I was wondering what would be best to shove down the tubes as I looked at them. Ice is a new one on me!
@@martinda7446 wax can work on smaller tube. or fine sand if you can crimp the ends.
@@whatthefunction9140 Thank you.
Try very fine sand (e.g. stealing from your bird cage for an hours); works perfectly .
BUT, be ensured that both ends of the sand-filled tube (shake it well before) are ABSOLUTELY CLOSED (LEAK-FREE) !
Brilliant engine for harnessing concentrated solar energy
hintzofcolorconcepts no
Now that is cool
This would be more impressive if the heat were generated by radioactive decaying pellets, like plutonium, instead of a gas burner.
Yeah because that's safe.
G’day Latheman, you put a great amount of work building that engine, excellent work. Is the sound I hear the conrods clacking? I couldn’t see too well the swashplate to piston connection. Cheers Peter
He didn't build it...
Bought from china
@@i_critique_your_vanity7216 exactly
Nice but i really cant hear you at all! Check you volume!
Check YOUR volume lol
iamflee_
Weird....it was maxed out everything and now it sounds ok, maybe youtube was drunk or something.
Why are you using JOHNNYQ90'S sterling engine
Its not his, anyone can buy it
subscribed
. Is beautiful. Quite poor performance for such an extensive structure
Performance isn't the point
@@blueninja115 still it breaks heart 💔
Sterlings only harness warmth, they are simply incapable of producing any substantial power.
Power is just a scaling problem. The real issue is the power/weight ratio. They can be comparable to IC engines in efficiency. (this one is just badly designed)
German ingenuity
well its cool as hell but the lip smacking i heir in my spekers is nasty
for when you have wood, you've used all the wood gas and now you only have charcoal. ofc if you have gas this is inefficient because it doesnt harvest the expansive power of rapid combustion, but as i outlined sometimes you only have solid fuel
Interesting idea for making a desktop fan with alcohol based power.
Mind your fingers.
Back in the 80's the Ford company toyed with the idea of a stirling powered vehicle
Wouldn't the very concept of an external combustion engine already be a sign of poor efficiency.
Unless they just had money to blow off why not.
thanks for posting. here are some things to consider. the inherent Inefficiency of such a multi-heat engine design, makes it one that should Not be emulated. other commenters have noted the excess play in the linkages. this engine has a flywheel, that is shaped like a propeller; and it is NOT effective as either. this engine is just barely running; and would be able to do zero work. it is probable that the MASS of the cold pistons has Not been optimized/minimized. the need for the end of Any displacer cylinder to be 'red hot', indicates the presence of major Inefficiency Issues. the use of a swashplate, in a POWER transmission application, is just plain stoopid. in part, because it IMPOSES a timing on a group of heat engines. here, the Mass of the brass swashplate guides (and heavy pistons) Further Reduces engine efficiency. (see link, for info about mass damping/governor. this is NOT what you want. vibration damping is NOT the same as balancing.) the EFFICIENT combining of the outputs of multiple heat engines is NOT a simple thing. it should be Understood that a correctly designed htd heat engine will operate, with the heat from a candle flame; about 1000 degrees c. this temperature does NOT produce a 'red hot' condition in metal (or glass). googletranslate
en.wikipedia.org/wiki/Governor_(device)
Идея - хорошая, реализация - китайцы почти полностью идею угробили...
Steam engine more efficient .
Imagine how much more efficient that thing would be if ya used all that Gas in the combustion chamber lol, worthless but looks cool
Nasa wants to use them for their RTG's
they aren't really useful in most Places
So inefficient
That is some dirty camera lense you have there
Stirling motors. Useless.
But cool