Magnet motor idea hopefully solved

[shylo]

Hi Vidar
I can't see how it could work.
What needs to be figured out is how to make a magnetic levitating rotor. Zero friction.
I'm working on it ,but everything I try is a fail.
artv

[Low-Q]

Hi Vidar
I can't see how it could work.
What needs to be figured out is how to make a magnetic levitating rotor. Zero friction.
I'm working on it ,but everything I try is a fail.
artv

If positive torque is produced, like what's happening in a normal electro motor, there is no need for zero friction bearing. Normal electro motors works well without frictionless bearings.
The goal is to let the motor to do work. If it does in one way or the other, it can easily overcome friction in normal ball bearings.


That said, this idea is just an idea. The idea came to me because I cannot see why it shouldn't work. The only obstacle I can imagine is where the magnetic belt goes from one polarity to the other polarity. This point in the belt is staying stationary in the rotational direction, but it must move up and down and around the pulleys perpendiculary to rotation.


Since the magnetic belt is an array of magnets, the magnetic field that rounds the pulleys will go from in line to perpendicular between 0. 90, and 180° to the field from the stator magnet. The magnetic force will act radially on the pulleys and will not prevent rotation. The straight parts have no magnetic resistance when the magnet array moves perpendicular to the stator magnetic field.
At the point where the magnet array shifts polarity, there is a magnetic field that goes in line with the array. So when this point is at the top of the pulley, it lays perpendicular to the stator magnetic field.


In either case, the straight parts of the magnetarray/belt wants to turn around its own axis (wants to twist the straight parts) and create torque in the same direction before and after it has passed the center of each stator magnet, just like the electromagnets in an ordinary electric motor does.
The only obstacle I can think of is the behaviour of the point where the array goes from one polarity to the other, as this point is moving across the statormagnets as it rolls "backwards" with respect to the pulleys.. Just to remind you, the array/belt magnets are fixed with one polarity on one half, and another polarity on the other half. It is only the wave shape that is supposed to force the rotor to turn - like a surfer on a wave in the ocean.


Vidar

[SciAnt]

My motor generator testing with full bridge drive also support 1 phase drive
https://www.youtube.com/watch?v=992QtAfu6FU

[broli]

Could you not also use gravity instead of magnetism, where one side of the chain has more mass than the other?

[Low-Q]

Could you not also use gravity instead of magnetism, where one side of the chain has more mass than the other?

I have thinked of that too, but see one obvious problem. The weights furter from the hub, lets say on the right side, will move upwards around each pulley while the left weights closest to the hub moves downwards around the pulleys to keep the chain at the bottom and top in the same position.
Since gravity acts on the weights around the pulleys as well as the weights in stright line between them, the torque is counterforced.
With an array of magnets, the field around the pulleys is not as attractive or repulsive to the stator field the same way as the straight portions where the field us in line with the stator field.
Gravity has no field polarization, but magnetic fields has. So it is a difference in the way those forces work.


Vidar