@STICKEREAT It is a heat engine so any heat source that you have available might be turned into motion with this type of engine. As you can probably see this design does require quite a lot of heat and in fact it doesn't produce a great deal of power. But that doesn't mean that a solar heat source can't be used to generate stored power over time by charging batteries for instance.
@AbhayG27 In its current form I doubt it. It generally takes quite a lot of heat to generate sufficient energy this way, thus in vehicles they have some practical limtations that go well beyond simply bolting one in.
However if you're have time combined with a free energy source that you're willing to use to charge a battery then you might effectively power other devices.
@Snowdone It has four pistons in its current form if you count the displacers. Otherwise you could I suppose increase the number of pistons as much as you like, and if in so doing you had an infinite source of heat to take advantage of then you should be able to generate more power.
Can a Wankel engine concept not be used for a Stirling engine?
I just had a thought considering the repetitive waste of force when the engine has to oscillate the mass of piston. Consider the efficiency with a Wankel type concept Stirling engine.
@justlivemyway Well there a definite requirements on the porting between pairs of cylinders so that what is essentially an induced convection current can be properly maintained in an optimal balance. Doing that within a rotary scenario may prove possible but I'm not entirely sure how without futher in depth study.
This is a good design from the stand point of balancing out force impulse. The concept is somewhat like a 3 phase current and a single phase current.In three phase the current timing for all the three poles is a bit offset which has the effect of giving a smooth power curve. Here the four cylinders deliver power at intervals in 360 degree. This has an effect of giving out a smooth power curve.
@justlivemyway It is really just two stirling cycle engines side by side with the flywheel maintaining timing between the cylinders. It seems to be the case with most stirling engines and perhaps even more so with this one that once it heats up to operating temperature a flick of the flywheel to set it in motion really helps.
I really need someone to stick their finger in that Ujoint/diferential/crazy crank shaft/ what ever you call that part. That parts keeps drawing me in and i know at some point, someones going to want to touch that. Great motor and machine work.
@MaximillieN7 You don't want the heat source to one side of the cylinder for fear of warping it or creating an uneven heat pattern. Right on the end of the cylinder is where you should best concentrate the flame. So with that in mind, and taking your well made point into account, I guess maximum efficiency would be achieved were the engine turned up on end for a flame or inverted from that orientation for a solar heat source.
We just wanted to be able to see it working to best advantage.
@carlsl27 We have looked at either making these or just distributing the plans to hobbyists. Unlike some other purely ornamental designs this one turned out not to be the cheapest thing to build so we never went ahead with plans to sell them, but I may finish drawing up the plans one day soon if the demand is high enough.
Good work!!!!! Im realy impressed by these stirling motors! Why havent i heard of these before? Do you know if there is any calculations on energy you generate and how much energy you need to get it started
@eviltetex It's a great little engine in terms of the way it looks and works as a project that we developed as novel exercise. To be honest we haven't taken the design further than that. They use a hot to cold heat exchange cycle to convert heat into rotary motion. Unless you've a large ready heat source the power output is relatively low.
@eviltetex Believe it or not, the Stirling cycle is extremely efficient. The efficiency is the same as the Carnot cycle which is the max efficiency a heat engine can achieve, which is 1-(TH-TL).
@fredrik999z Sure look up anything to do with a Fresnel Lens, and the task is to concentrate the Sun's light onto the ends of the cylinders in place of the torches.
@MrZarkop No I don't we've never tested either of the models that we've built for their power output. We have on roughly the same scale made more powerful Stirling engines of a simpler more conventional design. But the point of this design was merely for show, to look at different drive systems and to experiment with the efficiency of configuring the engine for a more compact layout.
If you pressurise the cylinders you'll undoubtedly get more power out of such an engine, and by the time you do so what you have is remarkably similar to certain commercially available models that we were unaware of when we started with this design.
By solar collector do you mean a Fresnel lens or something else?
I like, I like! Seems like the wobble yokes I've seen applied to stirlings involved two sliding plates, or something, and I never liked the design. This however looks much more robust. Did you build this or buy it?
I'd love to see one of these in the double-sided alpha configuration, where you have four hot tops out front and all four on the bottom are cold sides. Love it!
@randommagnum it's a simple universal joint not a scotch yoke. We built it from scratch. Stirling cycle engines tend to work as paired cylinders so the only downside of multi cylinder configurations is that they rely on the flywheel for timing, and tend to work in a narrower rev range. It is in fact an two alpha configurations side by side.
@andruha11234 - What you say is true within any system that uses a heat source from a flame such as we're using at the moment. There are many other ways however to access heat sources from solar or geothermal to wasted heat in other systems that Stirling engines are far better suited to in principle.
Indeed! I'm currently in the throes of starting to build a 1kW Tesla Turbine so I can run off waste heat but I still really want to build up a decent size Stirling :)
Congratulations, very nice to see a wobble yoke in action. Wouldn't want to get my fingers too close though. Thanks for posting the video. Cheers MJdV
hey im from mexico n i wanna now what part of the stirling motor make the force ?
i mean what make it stronger ??
maybe we could use it 4 free energy cars bikes etc etc.
STICKEREAT 2 weeks ago
@STICKEREAT It is a heat engine so any heat source that you have available might be turned into motion with this type of engine. As you can probably see this design does require quite a lot of heat and in fact it doesn't produce a great deal of power. But that doesn't mean that a solar heat source can't be used to generate stored power over time by charging batteries for instance.
mgburke888 2 weeks ago
scotty i need me power! IM GIVING IT ALL SHE'S GOT CAPTAIN!!!!!
riphaven 3 weeks ago
Wow this is amazing! What are the power specifications of this engine? Can we power a bike using this?
AbhayG27 4 weeks ago
@AbhayG27 In its current form I doubt it. It generally takes quite a lot of heat to generate sufficient energy this way, thus in vehicles they have some practical limtations that go well beyond simply bolting one in.
However if you're have time combined with a free energy source that you're willing to use to charge a battery then you might effectively power other devices.
mgburke888 4 weeks ago
making it a 4 piston would be as easy to make but with 2 times the power no?
Snowdone 1 month ago
@Snowdone It has four pistons in its current form if you count the displacers. Otherwise you could I suppose increase the number of pistons as much as you like, and if in so doing you had an infinite source of heat to take advantage of then you should be able to generate more power.
mgburke888 1 month ago in playlist Uploaded videos
@mgburke888 yeah I was talking about the power pistons but anyways great design !
Snowdone 1 month ago
@mgburke888 PLANS PLZ!!!
Snowdone 1 month ago
Neds a load test for data
radiowwww 1 month ago
Can a Wankel engine concept not be used for a Stirling engine?
I just had a thought considering the repetitive waste of force when the engine has to oscillate the mass of piston. Consider the efficiency with a Wankel type concept Stirling engine.
justlivemyway 1 month ago
@justlivemyway Well there a definite requirements on the porting between pairs of cylinders so that what is essentially an induced convection current can be properly maintained in an optimal balance. Doing that within a rotary scenario may prove possible but I'm not entirely sure how without futher in depth study.
mgburke888 1 month ago
This is a good design from the stand point of balancing out force impulse. The concept is somewhat like a 3 phase current and a single phase current.In three phase the current timing for all the three poles is a bit offset which has the effect of giving a smooth power curve. Here the four cylinders deliver power at intervals in 360 degree. This has an effect of giving out a smooth power curve.
justlivemyway 1 month ago
@justlivemyway It is really just two stirling cycle engines side by side with the flywheel maintaining timing between the cylinders. It seems to be the case with most stirling engines and perhaps even more so with this one that once it heats up to operating temperature a flick of the flywheel to set it in motion really helps.
mgburke888 1 month ago
I really need someone to stick their finger in that Ujoint/diferential/crazy crank shaft/ what ever you call that part. That parts keeps drawing me in and i know at some point, someones going to want to touch that. Great motor and machine work.
torchandregdoc 2 months ago
Thanks for your comments, and I guess we could always put one of these signs on it.
ACTUNG
ALLES LOOKENPEEPERS !
Dies machine ist nicht fur gerfingerpoken und mittengraben.
Ist easy schnappen der springwerk, blowenfusen, und poppencorken mit spitzensparken.
Ist nicht fur gewerken by das dumbkopfen.
Das rubbernecken sightseeren mus relaxen, keepen das hands in das pockets, und watch das blinkenlichten.
mgburke888 2 months ago
You missed a point, upper sides of flame gives more heat. place torches a little lower.
MaximillieN7 2 months ago
@MaximillieN7 You don't want the heat source to one side of the cylinder for fear of warping it or creating an uneven heat pattern. Right on the end of the cylinder is where you should best concentrate the flame. So with that in mind, and taking your well made point into account, I guess maximum efficiency would be achieved were the engine turned up on end for a flame or inverted from that orientation for a solar heat source.
We just wanted to be able to see it working to best advantage.
mgburke888 2 months ago in playlist Jamb Systems
send mee how to buy one like this?
mhammed11 2 months ago
I would like to get a set of plans
carlsl27 2 months ago
where can i buy one ?
carlsl27 3 months ago
@carlsl27 We have looked at either making these or just distributing the plans to hobbyists. Unlike some other purely ornamental designs this one turned out not to be the cheapest thing to build so we never went ahead with plans to sell them, but I may finish drawing up the plans one day soon if the demand is high enough.
mgburke888 3 months ago
Good work!!!!! Im realy impressed by these stirling motors! Why havent i heard of these before? Do you know if there is any calculations on energy you generate and how much energy you need to get it started
eviltetex 4 months ago
@eviltetex It's a great little engine in terms of the way it looks and works as a project that we developed as novel exercise. To be honest we haven't taken the design further than that. They use a hot to cold heat exchange cycle to convert heat into rotary motion. Unless you've a large ready heat source the power output is relatively low.
mgburke888 4 months ago
@eviltetex Believe it or not, the Stirling cycle is extremely efficient. The efficiency is the same as the Carnot cycle which is the max efficiency a heat engine can achieve, which is 1-(TH-TL).
patdabak 2 months ago
This reminds me of a steam engine I used to play with as a kid. :) Nice work! Can you make it solar powered?
fredrik999z 5 months ago
@fredrik999z Sure look up anything to do with a Fresnel Lens, and the task is to concentrate the Sun's light onto the ends of the cylinders in place of the torches.
mgburke888 5 months ago
do u know what is the power output
MrZarkop 6 months ago
@MrZarkop No I don't we've never tested either of the models that we've built for their power output. We have on roughly the same scale made more powerful Stirling engines of a simpler more conventional design. But the point of this design was merely for show, to look at different drive systems and to experiment with the efficiency of configuring the engine for a more compact layout.
mgburke888 6 months ago
so it uses the idea of gyroscope- one spins freely while the other holds it ..or is there another name it can be called?
itsbigdan 8 months ago
@itsbigdan It isn't a gyroscope at all more of a universal Joint coupled to a swash plate and driven by the pistons of paired Stirling cycle engines.
mgburke888 8 months ago
@mgburke888 ah of course! duh silly me :) got any calculation results speed on the flywheel?
itsbigdan 8 months ago
i love this thing
afro360nz 10 months ago
@dave97202
If you pressurise the cylinders you'll undoubtedly get more power out of such an engine, and by the time you do so what you have is remarkably similar to certain commercially available models that we were unaware of when we started with this design.
By solar collector do you mean a Fresnel lens or something else?
mgburke888 10 months ago
At this stage that hasn't been tested
mgburke888 11 months ago
how many electric watts could it provide?
OVAT131174 11 months ago
awesome!
Mushketer888 1 year ago
I like, I like! Seems like the wobble yokes I've seen applied to stirlings involved two sliding plates, or something, and I never liked the design. This however looks much more robust. Did you build this or buy it?
I'd love to see one of these in the double-sided alpha configuration, where you have four hot tops out front and all four on the bottom are cold sides. Love it!
randommagnum 1 year ago
@randommagnum it's a simple universal joint not a scotch yoke. We built it from scratch. Stirling cycle engines tend to work as paired cylinders so the only downside of multi cylinder configurations is that they rely on the flywheel for timing, and tend to work in a narrower rev range. It is in fact an two alpha configurations side by side.
mgburke888 1 year ago
@mgburke888 Oh yeah, definitely nothing like a scotch yoke. I was actually thinking about a swash plate but forgot what they were called.
randommagnum 1 year ago
@randommagnum We call the system a swash plate too when it comes to the assembly of the con rods to the disc. The part in the middle is a uni-joint.
mgburke888 1 year ago
very very cool siemens type !
best regards
SWINGREGORY 1 year ago
pretty cool and all, but i would think that you are wasting more energy than you would ever make.
andruha11234 1 year ago
@andruha11234 - What you say is true within any system that uses a heat source from a flame such as we're using at the moment. There are many other ways however to access heat sources from solar or geothermal to wasted heat in other systems that Stirling engines are far better suited to in principle.
mgburke888 1 year ago
@andruha11234 Their not "making energy" they are getting mechanical power from heat energy stored in hydro carbons.
astrialkil 9 months ago
@astrialkil That's exactly what this show, but I'd love to point a large Fresnel Lens at one of these things and see how it goes.
mgburke888 9 months ago
@mgburke888 and put a load on it to see how much HP it has!
astrialkil 9 months ago
Indeed! I'm currently in the throes of starting to build a 1kW Tesla Turbine so I can run off waste heat but I still really want to build up a decent size Stirling :)
adamjbradley 1 year ago
When you do build it put that video up it could be interesting!
mgburke888 1 year ago
@mgburke888 hi sir , this one is amazing design. can we buy one? how much would it cost to make?
shorty40merza 1 year ago
@adamjbradley Cool! what ever happened? Did you build it?
astrialkil 9 months ago
Nice! Have you put a load/generator on it to see what kind of power you're making?
adamjbradley 1 year ago
Not at this stage no, but if we were to do so we'd probably pressurise the system first to get the best results.
mgburke888 1 year ago
Congratulations, very nice to see a wobble yoke in action. Wouldn't want to get my fingers too close though. Thanks for posting the video. Cheers MJdV
mjdevink 1 year ago
I suppose you're right, but then you'd be in a lot more danger from the hot end!
mgburke888 1 year ago
mgburke888, where did you get this engine from?
dcrits 1 year ago
@dcrits We designed and built it ourselves as a larger version of our original design which is also shown here and is much smaller
mgburke888 1 year ago
SUUUUPER!
piespokladowy 1 year ago