You should try Polymagnets that repel and attract at the same time! They also have aligning magnets! You might be able to get rid of the point all together!
I think the point of the Tesla turbine is to have pass through the motor assembly, something happens at a certain RPM, there's some kind of state of equilibrium where the motor goes super-sonic and turns as fast as the wind moving. I'm just a layman trying to explain what I've seen, but something magical happens at high rpms, the thing becomes nearly silent and the rpms go through the roof, it's amazing.
I dont think supersonic. Assume the circumference at the widest point is 20cm or 0.2 of a metre ( and that looks like a generous over estimate to me ). 10,000 revolutions per minute x 0.2 metre = 2000 metre per minute or 2000 / 60 metre per second = 33.33 metre per second Sound is travelling about ten times faster than that. A car travelling at 60 Kilometre per hour is doing 1 Km per minute - most average cars could outspeed this spindles speed measured at the circumference.
If you could account for the precession and wobble of the axis so as to keep the thing balanced I'm sure you could get even more satisfying results. A large array of electromagnets and solid switching equipment will be a necessity. Magnetic bearings have come a long way, and have become very sophisticated. I think the integration of tesla tech and modern magnetic bearing design is definitely something worth exploring. Good luck
Good question. Tesla originally designed the turbine as a pump. If you remove the nozzle there is quite a breeze blowing out the nozzle hole when it is spinning down. When not under power, the turbine becomes an air pump, sucking air in the center holes and blowing it out the periphery. I also underestimated the amount of friction cause by the needlepoint. Reducing the pressure on the needle point from max to min, reduced the coast time from 4 1/2 min to over 11 min.
I believe you were right when you stated that bearings would be better for real world applications especially if the system were designed to produce electricity!!! I have a theory that I believe explains why no one has seen the true capability of this design. Tesla wrote the patent so vague so no one would steal it from him ( like the electric motor was!!) I enjoy your design and ingenuity! I just lack how to harvest the amount of energy produced by such a machine!! "The real machine"
Input air tangentally to the disks and put two air inputs 180 degrees out of phase to cut wobble or three air inputs 120 dgrees out of phase to balance out forces
the shaft part should be completely balanced in construction, this would probably stop the vibration. I noticed when it stopped spinning it was unbalanced, moving from side to side while trying to turn. it seemed heavier on that bottom side.
if you could fix the wobble wouldnt it be more efficent to have the housing closer to the turbine so the air has to go through the blades instead of escaping between the rotar and the housing wall?
Exactly, the secret of greater stability is to force the exit of air around the magnet and to avoid the reverberation of the air that enters the rotor that vibrates the magnet, separate chambers must be made.
I'm interested in building a much larger model with steel. I'd like to see the circular disk magnet inside a ring magnet in much closer proximity and as well cap the end of the shaft with a flat circular magnet and cap the ring magnet instead of having the glass surface. This would eliminate cogging and wobble as well as a bit more friction. I'm interested in seeing Max rpm torqued load. I want to know if 30,000 rpm can be reached without blowing up and how much pressure will cause failure.
I have had a 1 inch diameter ferrite magnet explode at around 30,000 rpm though it was not a support magnet but a thin ring magnet mounted on a steel backplate on the shaft to generate electricity. could have been defective. No way to know. All I can say is smaller diameter is better and you might need to make some type of high speed test rig to test magnets before putting them on your model.
PlasmaStar9 thanks for the info. 30,000 rpm was also the top speed I got with ball bearings.... Perhaps a stronger magnet. Neodymium? It's good to see people sharing ideas and info and all the doubters can eat my shorts. when the SHTF people like us will be worth our weight while the keyboard warriors will be eaten by cannibals because it will be the best use for them.
If you were to completely eliminate the friction by replacing the needle point with two magnets repelling and attracting that the same time, it would most likely spin for a longer period of time. I assume that the energy would be then lost due to the magnetic friction of the magnets. Now for another question. Where does that energy go?
No, it became more unstable as the rpms went up. Good idea though. I really have no way to precisely balance the rotor shaft, which could be part of the problem. There is also a little inconsistency in the magnetic field of the ring magnets
funny i just found this. What if the needle point and the center axis material could be eliminated for an axial/horizontal bearing structure resting on the outside of the turbine, that could be sustained by magnetic fields as well ? Maybe even Secondary Air pressed into the end of the bearing ?
That's pretty cool. Stuff like this is what got me thinking about something. Theres other designs of something I was thinking of but Im sure these corporations already know what to make?
You need more magnet... you have 5 smaller magnets on the shaft and 6 or more magenets to support the magnet feild of the shaft also magnet mount to the ends of the shaft... your end wall would also have an adjustable Threaded Screw to apply pressure to the shaft.. locking the shaft from side to side motionand bounce up and down
Thanks for the show. Yes, as rpm goes up, the turbine becomes unstable.On the road speed usually kills. If rpm can be kept steady,it should run longer?
Can't you do it with electrical magnets? 2 on the side with a cone like structure providing lift and stability to the rotor and magnetize the entire rotor with a coil around it (static). The rotor fits in the other 2 cones. This eliminates friction (beside air) and can gains stability because electromagnets are in general more powerful than permanent magnets.
Could the wobble be caused by the (Free) end not having proper bracing required to limit motion caused by steady state and transient electromagnetic forces? Why not try to put an end cap on the free end with a concave glass surface and see how that works out.
Question ..Please,If opposing magnets were set up in a machined Nonagon or Decagon shape bearing using Neodymium magnets. would the magnet bearing work better? I am working on a scale model of something like this. Thank you for your time and video.
stabilize it with aother fasten at the other end. i assume it's held with another magnet pulling the axle. if you put another one with an indention. i bet you'd get another 10,000 rpm
I wonder if by using diamagnetic materials that one could still utilize permanent magnets, and create a balanced system; without using electromagnets and advanced switching equipment.
i have looked at you levitation set up looks good but know of a few way's to possibly improve it . ression i say this is i am working my own lev. system using a few thing's that i learned from from a couple of teacher's from collage and that was a long time ago. But what they showed me still apply's now as it did then. i belive i can get tourque from the one i'm building and still use magnetic for my bearing's
You'd get a more industrious outcome if the housing was a magnet and the turbine itself was the opposite magnet. Thus ZERO friction with a massive amount of stability within the entire device. Also, would potentially wobble less if the air coming in was introduced at multiple locations rather than just 1. (Currently may have a see-saw effect if only one end receives all incoming force) I'm sure NASA has made a no friction, magnet turbocharger. Magnets have unlimited uses from electric motors to ultra-comfortable levetating and shock absorbing, semi-truck seats..
Isn't Nasa using retro rockets that are air controlled to adjust location on the space shuttle. ? if you had turbo fans like a jet engine that would spin with the action of magnate tech. so that they would create a force pushing forward or backwards.
Actually I mounted a perm. magnet stator on the shaft and a coil next to needle point, but the magnets in the stator messed up both the lateral and the axial balance. While magnetic bearings on a model are fun. I think in the real world ball bearings are more sensible. Also if you direct mount the stator on the shaft, you have to worry about it exploding when you get up in the high rpms, Belt drive gives more torque less rpms. 90vdc is not a big problem, getting a useable amount of current is.
Just like they said in Star Trek. Khan is suffering from two-dimensional thinking. You have a glass bearing at the bottom. Stand a thing up so that any Miss balance is going to be relieved by having the axis change. If you're a little bit out of balance on a vertical shaft you don't have as much problem. That's why all the big turbines are vertical shaft. Tesla already work that out you weren't paying attention
Many real application possible. Problem : Not economically viable yet. With today's technology it is not viable,any vibration could destroy the whole thing. Basically we need better material.
Why does everyone build magnetic bearings with a point holding it instead of opposing magnets in pairs on each end to hold it centered for an entirely magnetic bearing? Always wondered...
Look up Earnshaw's theorem. It is impossible to levitate something purely with permanent magnets. There will always be instability, give it a shot sometime. Some form of stabilization needs to be included, be it a gyroscope, a hall effect sensor and an electromagnet, or in this case a peg on a plate.
Yes it does. They're used in electromechanical batteries and they have perfectly stable magnetic levitation when spinning defeating Earnshaw's Theorem. This is not a secret. Quote from Magnetics Magazine: "Only when the rotating arrays are displaced up or down with respect to the mid-plane is current induced, and together with the current a strong restoring force is generated. This type of Halbach-array stabilizer [2,3] is thus described as an axial stabilizer. To complete the picture, the accompanying levitating permanent-magnet arrays are designed so as to be intrinsically stable against transverse displacements, and therefore the Earnshaw unstable displacement is an axial one, now stabilized by the Halbach stabilizer. - See more at: www.magneticsmagazine.com/main/channels/magneticsassemblies/passive-magnetic-bearing-prototype-testing-results/#sthash.yh1W2PIf.dpuf" In other words, the Halbach Array has stabilized the Earnshaw instability. It is not an excuse to buy magnets and is not theoretical but an indisputable fact of science.
Aaron Murakami Right, when they are spinning. I thought you were explaining a static system. Spinning is the 'active stabilization' here. if you were to stop it it would no longer be stable. There is also a way to levitate things by using eddy current. These are considered dynamic systems though, not static.
the problem of this method of bearing is the suport mass(i think) i dont think this will work on one motor like the electric motor from Tesla Motors company.
Gee Rob. Chill. I do not see where I made any claims as to specific efficiency or "magic that can change the world".This is a simple model. made for my own enjoyment and because bearing friction WAS PROVING TO BE A SIGNIFICANT DRAG on small steam powered models. Also, In Magnetic Bearings II, a similar unit is belt driving a small generator suggesting that this bearing arrangement can do REAL WORK, albeit small. You're very good at criticism, would love to see what have you built. Thanks, Homer
hi does anyone know where on e can find the type of parts for the clear casing he's got going on there? like a place where you can buy each small part for cheap instead of buying a large piece and having them custom cut? thanks!!
The question is why every invention or device is about Tesla? These inventions were unheard of in his days. The fact that these turbine spin without the shafts contacting a body doesn't mean they are good at being used to power anything because for the turbine to operate a load the shaft had to be planted on something that stops it from swaying out of gear. It's actually no such thing as magnetic field for shaft bearing. Even a piston engine or electric motor must have their shafts firmly planted by means of bearings so that the torque can be distributed to a gearbox or load without jumping out of gear teeth. A flapping turbine shaft suspended by magnets will never be any good for applications other than to spin by themselves only. Not a good idea either.
You'll love to know that magnetic bearings have been used for turbine shafts for 50 years now. Look up any major bearing supplier or turbo machinery manufacturer.
Friction near the end of the needle where it contacts the surface. Also, because the magnets have 2 poles which prevent motion when the magnetic field of the shaft is in between the 2 poles of the magnet.
Perhaps and it is true that the only "balanced" spindle is to be found in text books, however if the perturbation is due to spindle imbalance then why does it not go catastrophic? I would expect a spindle in ideal free suspension to start wobbling from the start and get progressively worse.
I agree! If the magnets were stronger or there was a smaller gap between them the spindle probably wouldn't move. If it were out of balance the movement would increase with the RPM. It could also be that the magnets aren't the exact same strength. Cool demo,alot of energy is used and heat created by friction from bearings. Can't wait til antigravity craft are revealed, youd think the same concept would apply.
Using an electromagnet array of at least 8 coils on either side of the axis being rotated; would certainly be sufficient enough to keep it balanced while it spun at high rpm's. The real issue is timing the pulses of electromagnetic induction; in other words turning the coils on and off at the correct time and rates. You would need sophisticated switching equipment, and a lot of research to find the point of balance in your particular set up. Another issue is back emf; magnets turning off and on creating pulses of magnetic induction could cause unexpected effects. I have been exploring the concept of diamagnetism as being a means by which to create balanced magnetic bearings without electromagnets, but have yet to done any real experiments to find out what the result would be. There are some really sophisticated magnetic bearing systems out there today; I'm sure if they were integrated with say a tesla turbine, or similar wind or water powered device; that they would produce some pretty astounding results
Bearing friction is minimal when compared to load. It's the load that the turbine must supply. This bearing arrangement won't hold up under shaft torque either. Just because something is spinning at 9k doesn't mean it will do real work! Real work is based on energy input. Efficiency is energy output divided by energy input. The bearing friction losses in the form of heat are insignificant. Please study some basic physics, there's no magic here that can change the world. Rob
As feynman would say it all depends on your point of view. If you can better harness the velocity of the gas at high rpm with minimal friction, and then convert to lower speed high torque using magnetic gears with minimal friction while making use of the added heat loss due to the magnetic bearings as say an input, then yes you could possibly change the world. We do not need magic just an appreciation for physics. Real work does not care if we have low torque and high rpm's as long as we can deliver at the end the torque and speed for application. The same could be said for high voltage and low amps, the useful energy is the output of both.
Use this to generate an electrician current that feeds the water of a hydrogen generator. Use the hydrogen pressure to feed back into that bad boy. Harness the excess heat boil water to generate more steam to pump into this turbine motor. It will probably explode.
I don't now y is un educated person in engineering field first the name of Tesla you can use where is copper winding works because Tesla is an creator n he create the transformer it's means (echo of electricity) so Mr change the upload name u cant use Tesla Nam in this machine because in this machine no any electric winding works u can use name air turbine
Those magnetic bearings.... BRILLIANT!!!
You should try Polymagnets that repel and attract at the same time! They also have aligning magnets! You might be able to get rid of the point all together!
I think the point of the Tesla turbine is to have pass through the motor assembly, something happens at a certain RPM, there's some kind of state of equilibrium where the motor goes super-sonic and turns as fast as the wind moving. I'm just a layman trying to explain what I've seen, but something magical happens at high rpms, the thing becomes nearly silent and the rpms go through the roof, it's amazing.
I dont think supersonic.
Assume the circumference at the widest point is 20cm or 0.2 of a metre ( and that looks like a generous over estimate to me ).
10,000 revolutions per minute x 0.2 metre = 2000 metre per minute
or 2000 / 60 metre per second = 33.33 metre per second
Sound is travelling about ten times faster than that.
A car travelling at 60 Kilometre per hour is doing 1 Km per minute - most average cars could outspeed this spindles speed measured at the circumference.
If you could account for the precession and wobble of the axis so as to keep the thing balanced I'm sure you could get even more satisfying results. A large array of electromagnets and solid switching equipment will be a necessity. Magnetic bearings have come a long way, and have become very sophisticated. I think the integration of tesla tech and modern magnetic bearing design is definitely something worth exploring. Good luck
Good question. Tesla originally designed the turbine as a pump. If you remove the nozzle there is quite a breeze blowing out the nozzle hole when it is spinning down. When not under power, the turbine becomes an air pump, sucking air in the center holes and blowing it out the periphery. I also underestimated the amount of friction cause by the needlepoint. Reducing the pressure on the needle point from max to min, reduced the coast time from 4 1/2 min to over 11 min.
I believe you were right when you stated that bearings would be better for real world applications especially if the system were designed to produce electricity!!! I have a theory that I believe explains why no one has seen the true capability of this design. Tesla wrote the patent so vague so no one would steal it from him ( like the electric motor was!!) I enjoy your design and ingenuity! I just lack how to harvest the amount of energy produced by such a machine!! "The real machine"
induce vaccum and solve the wobbling problem. if you can hit 60k-100k rpm this is even greater. awesome work!
Excellent work I would love to see it ballanced, boy would it go then
Input air tangentally to the disks and put two air inputs 180 degrees out of phase to cut wobble or three air inputs 120 dgrees out of phase to balance out forces
the shaft part should be completely balanced in construction, this would probably stop the vibration. I noticed when it stopped spinning it was unbalanced, moving from side to side while trying to turn. it seemed heavier on that bottom side.
if you could fix the wobble wouldnt it be more efficent to have the housing closer to the turbine so the air has to go through the blades instead of escaping between the rotar and the housing wall?
Exactly, the secret of greater stability is to force the exit of air around the magnet and to avoid the reverberation of the air that enters the rotor that vibrates the magnet, separate chambers must be made.
I'm interested in building a much larger model with steel. I'd like to see the circular disk magnet inside a ring magnet in much closer proximity and as well cap the end of the shaft with a flat circular magnet and cap the ring magnet instead of having the glass surface. This would eliminate cogging and wobble as well as a bit more friction. I'm interested in seeing Max rpm torqued load. I want to know if 30,000 rpm can be reached without blowing up and how much pressure will cause failure.
I have had a 1 inch diameter ferrite magnet explode at around 30,000 rpm though it was not a support magnet but a thin ring magnet mounted on a steel backplate on the shaft to generate electricity. could have been defective. No way to know. All I can say is smaller diameter is better and you might need to make some type of high speed test rig to test magnets before putting them on your model.
PlasmaStar9 thanks for the info. 30,000 rpm was also the top speed I got with ball bearings.... Perhaps a stronger magnet. Neodymium? It's good to see people sharing ideas and info and all the doubters can eat my shorts. when the SHTF people like us will be worth our weight while the keyboard warriors will be eaten by cannibals because it will be the best use for them.
Have you seen David lapoint channel?
The magnet bowl he uses on his experiments I believe it could be used as a magnetic bearing
If you were to completely eliminate the friction by replacing the needle point with two magnets repelling and attracting that the same time, it would most likely spin for a longer period of time. I assume that the energy would be then lost due to the magnetic friction of the magnets. Now for another question. Where does that energy go?
I like what you are doing here. !!
No, it became more unstable as the rpms went up. Good idea though. I really have no way to precisely balance the rotor shaft, which could be part of the problem. There is also a little inconsistency in the magnetic field of the ring magnets
funny i just found this.
What if the needle point and the center axis material could be eliminated for an axial/horizontal bearing structure resting on the outside of the turbine, that could be sustained by magnetic fields as well ? Maybe even Secondary Air pressed into the end of the bearing ?
That's pretty cool. Stuff like this is what got me thinking about something.
Theres other designs of something I was thinking of but Im sure these corporations already know what to make?
You need more magnet... you have 5 smaller magnets on the shaft and 6 or more magenets to support the magnet feild of the shaft also magnet mount to the ends of the shaft... your end wall would also have an adjustable Threaded Screw to apply pressure to the shaft.. locking the shaft from side to side motionand bounce up and down
Thanks for the show. Yes, as rpm goes up, the turbine becomes unstable.On
the road speed usually kills. If rpm can be kept steady,it should run longer?
Can't you do it with electrical magnets? 2 on the side with a cone like structure providing lift and stability to the rotor and magnetize the entire rotor with a coil around it (static). The rotor fits in the other 2 cones. This eliminates friction (beside air) and can gains stability because electromagnets are in general more powerful than permanent magnets.
Could the wobble be caused by the (Free) end not having proper bracing required to limit motion caused by steady state and transient electromagnetic forces? Why not try to put an end cap on the free end with a concave glass surface and see how that works out.
Lowes in the hardware section or Harbor Freight
Question ..Please,If opposing magnets were set up in a machined Nonagon or Decagon shape bearing using Neodymium magnets. would the magnet bearing work better? I am working on a scale model of something like this. Thank you for your time and video.
since it is magnetic where does the lost in energy go besides the slight air friction ( Which causes some heat) Can't be heat? Can it?
Why dont you hook up a generator? Can i charge my battery-drill with this thing?
stabilize it with aother fasten at the other end. i assume it's held with another magnet pulling the axle. if you put another one with an indention. i bet you'd get another 10,000 rpm
I wonder if by using diamagnetic materials that one could still utilize permanent magnets, and create a balanced system; without using electromagnets and advanced switching equipment.
Super amazing but yeah unstble when shaking
i have looked at you levitation set up looks good but know of a few way's to possibly improve it . ression i say this is i am working my own lev. system using a few thing's that i learned from from a couple of teacher's from collage and that was a long time ago. But what they showed me still apply's now as it did then. i belive i can get tourque from the one i'm building and still use magnetic for my bearing's
i think if the shaft was balanced a bit better it would go a lot longer and be able to handle higher rpm.
Lovely. Are the stator magnets balancing the rotor by repulsion ?
trouble with a wobble? have you tryed placing it in a vacuum, or as close as you can get anyways..
Why can't both sides be magnetically balanced?
You'd get a more industrious outcome if the housing was a magnet and the turbine itself was the opposite magnet. Thus ZERO friction with a massive amount of stability within the entire device. Also, would potentially wobble less if the air coming in was introduced at multiple locations rather than just 1. (Currently may have a see-saw effect if only one end receives all incoming force) I'm sure NASA has made a no friction, magnet turbocharger. Magnets have unlimited uses from electric motors to ultra-comfortable levetating and shock absorbing, semi-truck seats..
you've amazed a genius!
are you claiming you are the gineuss. look closely and you will see the infinite potential of a quantum computer and the data it can store
where did you get the rectangular magnetic from
could there be a way to use this tech for space propulsion in place of fuel ?
connect turbo fans to a drive shaft these could be used for thrust and braking in theory . In space no gravity no drag !!
Isn't Nasa using retro rockets that are air controlled to adjust location on the space shuttle.
? if you had turbo fans like a jet engine that would spin with the action of magnate tech.
so that they would create a force pushing forward or backwards.
Do it in a vacuum next. Wanna see it spin further.
Cool !! Good for momentum wheels of satellites.
Actually I mounted a perm. magnet stator on the shaft and a coil next to needle point, but the magnets in the stator messed up both the lateral and the axial balance. While magnetic bearings on a model are fun. I think in the real world ball bearings are more sensible. Also if you direct mount the stator on the shaft, you have to worry about it exploding when you get up in the high rpms, Belt drive gives more torque less rpms. 90vdc is not a big problem, getting a useable amount of current is.
Excellent project - thanks for the upload.
Just like they said in Star Trek. Khan is suffering from two-dimensional thinking. You have a glass bearing at the bottom. Stand a thing up so that any Miss balance is going to be relieved by having the axis change. If you're a little bit out of balance on a vertical shaft you don't have as much problem. That's why all the big turbines are vertical shaft. Tesla already work that out you weren't paying attention
any real application for this awesome toy ???
Many real application possible.
Problem : Not economically viable yet.
With today's technology it is not viable,any vibration could destroy the whole thing.
Basically we need better material.
Cool can you build this for me ?
have you tried connecting the magnets with a conductive wire to make the magnetic field stable ?
Why does everyone build magnetic bearings with a point holding it instead of opposing magnets in pairs on each end to hold it centered for an entirely magnetic bearing? Always wondered...
Look up Earnshaw's theorem. It is impossible to levitate something purely with permanent magnets. There will always be instability, give it a shot sometime. Some form of stabilization needs to be included, be it a gyroscope, a hall effect sensor and an electromagnet, or in this case a peg on a plate.
Prometheus
Just put a Halbach Array around it - that defeats Earnshaw's Theorem.
Aaron Murakami It doesn't. Try it out. It's a good excuse to buy magnets. =P
Yes it does. They're used in electromechanical batteries and they have perfectly stable magnetic levitation when spinning defeating Earnshaw's Theorem. This is not a secret.
Quote from Magnetics Magazine: "Only when the rotating arrays are displaced up or down with respect to the mid-plane is current induced, and together with the current a strong restoring force is generated. This type of Halbach-array stabilizer [2,3] is thus described as an axial stabilizer. To complete the picture, the accompanying levitating permanent-magnet arrays are designed so as to be intrinsically stable against transverse displacements, and therefore the Earnshaw unstable displacement is an axial one, now stabilized by the Halbach stabilizer. - See more at: www.magneticsmagazine.com/main/channels/magneticsassemblies/passive-magnetic-bearing-prototype-testing-results/#sthash.yh1W2PIf.dpuf"
In other words, the Halbach Array has stabilized the Earnshaw instability. It is not an excuse to buy magnets and is not theoretical but an indisputable fact of science.
Aaron Murakami Right, when they are spinning. I thought you were explaining a static system. Spinning is the 'active stabilization' here. if you were to stop it it would no longer be stable. There is also a way to levitate things by using eddy current. These are considered dynamic systems though, not static.
the problem of this method of bearing is the suport mass(i think) i dont think this will work on one motor like the electric motor from Tesla Motors company.
Do you have a list of parts used?
Gee Rob. Chill. I do not see where I made any claims as to specific efficiency or "magic that can change the world".This is a simple model. made for my own enjoyment and because bearing friction WAS PROVING TO BE A SIGNIFICANT DRAG on small steam powered models. Also, In Magnetic Bearings II, a similar unit is belt driving a small generator suggesting that this bearing arrangement can do REAL WORK, albeit small. You're very good at criticism, would love to see what have you built. Thanks, Homer
nice!
yes, mag bearings, now use that as the "hub," .. cover the outer shell "ufo" with piezo,
draw line on the sides of the blades with a marker pen. run it!
one side is imbalanced because of not rigth positioning of the magnets
You can setup power plants like this too. The entire planet uses more steam power plants than anything. Turbine technology.
Get this in a vaccum have the systems work with the suction of the vaccum if possible
hi does anyone know where on e can find the type of parts for the clear casing he's got going on there? like a place where you can buy each small part for cheap instead of buying a large piece and having them custom cut?
thanks!!
it wobbles because the magnets aren't powerful enough to count the weight of the object resting in the field.
still there is much more friction to cut out.
awesome! you should weight that better though
ITEMS AND CONSTRUCTION PLANES PLEASE :D
Technik hat schon was auf den Buckel
It's imbalanced. If it was perfectly balanced and didn't wobble, it would spin a quite a bit longer. Would it not?
***** I know. I've been messing around with magnets for my whole life.
wow. thats pretty cool.
137.5? do i see a golden angle :)
You should have vacuumed the entire rotor chamber in order to have near zero air friction too
If it is all circular then surely it doesn't have any air resistance?
and a tesla turbine is sealed at the sides inside holes will releaser the decompessed air
good POC
The question is why every invention or device is about Tesla? These inventions were unheard of in his days. The fact that these turbine spin without the shafts contacting a body doesn't mean they are good at being used to power anything because for the turbine to operate a load the shaft had to be planted on something that stops it from swaying out of gear. It's actually no such thing as magnetic field for shaft bearing. Even a piston engine or electric motor must have their shafts firmly planted by means of bearings so that the torque can be distributed to a gearbox or load without jumping out of gear teeth. A flapping turbine shaft suspended by magnets will never be any good for applications other than to spin by themselves only. Not a good idea either.
You'll love to know that magnetic bearings have been used for turbine shafts for 50 years now. Look up any major bearing supplier or turbo machinery manufacturer.
Can someone tell me why it stops?
Friction near the end of the needle where it contacts the surface. Also, because the magnets have 2 poles which prevent motion when the magnetic field of the shaft is in between the 2 poles of the magnet.
it could be turned into a really good generator. easily...
If only that one point of friction wasn't needed.
Good
dammmmmm quiet. I think its got possibilities. not practical? ship to me please... I.ll tinker with it...;() :) good motor
It's imbalanced. It's not going to oscillate like that if it's balanced.
Perhaps and it is true that the only "balanced" spindle is to be found in text books, however if the perturbation is due to spindle imbalance then why does it not go catastrophic? I would expect a spindle in ideal free suspension to start wobbling from the start and get progressively worse.
I agree! If the magnets were stronger or there was a smaller gap between them the spindle probably wouldn't move. If it were out of balance the movement would increase with the RPM. It could also be that the magnets aren't the exact same strength. Cool demo,alot of energy is used and heat created by friction from bearings. Can't wait til antigravity craft are revealed, youd think the same concept would apply.
Using an electromagnet array of at least 8 coils on either side of the axis being rotated; would certainly be sufficient enough to keep it balanced while it spun at high rpm's. The real issue is timing the pulses of electromagnetic induction; in other words turning the coils on and off at the correct time and rates. You would need sophisticated switching equipment, and a lot of research to find the point of balance in your particular set up. Another issue is back emf; magnets turning off and on creating pulses of magnetic induction could cause unexpected effects. I have been exploring the concept of diamagnetism as being a means by which to create balanced magnetic bearings without electromagnets, but have yet to done any real experiments to find out what the result would be. There are some really sophisticated magnetic bearing systems out there today; I'm sure if they were integrated with say a tesla turbine, or similar wind or water powered device; that they would produce some pretty astounding results
Just looking at how steam turbines work reminds me of cold fussion in Russia.
I know messed up huh? Look it up. Look up Turbine Generator Systems.
como lo hago en casa
Well maybe not the entire planet but last time I looked 90% of usa uses Steam turbine power stations.
so, no use for the real thing. Tesla is on the 100 banknote of Serbia :)
Bearing friction is minimal when compared to load. It's the load that the turbine must supply. This bearing arrangement won't hold up under shaft torque either. Just because something is spinning at 9k doesn't mean it will do real work! Real work is based on energy input. Efficiency is energy output divided by energy input. The bearing friction losses in the form of heat are insignificant.
Please study some basic physics, there's no magic here that can change the world.
Rob
As feynman would say it all depends on your point of view. If you can better harness the velocity of the gas at high rpm with minimal friction, and then convert to lower speed high torque using magnetic gears with minimal friction while making use of the added heat loss due to the magnetic bearings as say an input, then yes you could possibly change the world. We do not need magic just an appreciation for physics. Real work does not care if we have low torque and high rpm's as long as we can deliver at the end the torque and speed for application. The same could be said for high voltage and low amps, the useful energy is the output of both.
No need bearing
does not show anything
Use this to generate an electrician current that feeds the water of a hydrogen generator. Use the hydrogen pressure to feed back into that bad boy. Harness the excess heat boil water to generate more steam to pump into this turbine motor. It will probably explode.
These people have no clue what Im thinking?
tyrods too?ahaha,guess what,thats what.
NU I SHO!
I don't now y is un educated person in engineering field first the name of Tesla you can use
where is copper winding works because Tesla is an creator n he create the transformer it's means (echo of electricity) so Mr change the upload name u cant use Tesla Nam in this machine because in this machine no any electric winding works u can use name air turbine
haroon ahmed it's the Tesla turbine. He invented it. His greatest invention as he said himself. Please use interpunction next time.
Enricobandito don't get mad Mr tesla
haroon ahmed who's mad?
You
haroon ahmed no you are misinterpreting.
my fidget spinner can spin longer than that!
pure entertainment and useless unless it can carry a load to generate electricity.