Spring Screen Magnetic Engine

[Low-Q]

exactly! that is why I said "hmm" in my post:)

I can not understand only one thing here, why we need other shield if steel in pack with air gap making good job?
just for testing spring idea?
see this http://www.youtube.com/watch?v=mayO2RsLfaQ
tell me what is the problem to use this type of shield in piston magnetic engine where only 2 magnets are working?
1 magnet at the top where we have generally valves of general engine and second magnet at the piston top surface and between of those magnets is fast magnetic electrically powered from DL CAPs  bidirectional actuator which is moving shield horizontally at the piston tic time to close magnets flux and in the next tic  opening chamber hole to give possibility to magnets to pull with max force? Sorry for my English .
Only don't say that it is not possible to reduce engine piston, crankshaft etc friction to get the goal.there are 100 ways to make such mecanics with very low friction factor because magnetic piston engine do not need to have piston rings, compression, time shaft , shall I coninue the list?
do you know what is DL caps?do you know whatis fast low power bidirectional magnetic actuators?

Rob

The reason I don't like piston movements isn't the friction, but the mass that has to change direction all the time. A solely rotary motor is more efficient.


I did some FEMM simulations yesterday. I see now how the spring will respond to the magnetic field. When the magnets are pointing N towards N horizontally (with the spring aligned vertically around one of the magnets), the spring wants to compress at the top and bottom of the magnets when they are approaching eachother. The spring will therfor also expand in the middle.
When both magnets points N vertically (polarized through length), the spring wants to compress in the middle and expand at the top and bottom. The spring wants to do this because the force applied to the moving magnet will also force the spring to align in such a way to reduce the repelling force between the magnets. Reaction = action.


So it seams the spring shield will behave similar to any other kind of shield.
Well, not shield, but rather a magnetic guide is what these steel parts actually are. The term "shield" means rather that the material blocks/absorb magnetism without being affected by it mechanicly. Such a shield dos yet not exist.


Vidar

[vineet_kiran]

The reason I don't like piston movements isn't the friction, but the mass that has to change direction all the time. A solely rotary motor is more efficient.


I did some FEMM simulations yesterday. I see now how the spring will respond to the magnetic field. When the magnets are pointing N towards N horizontally (with the spring aligned vertically around one of the magnets), the spring wants to compress at the top and bottom of the magnets when they are approaching eachother. The spring will therfor also expand in the middle.

@Vidar,

That is well in confirmity with what I have said in my setup.   When you compress the spring, you will be holding the spring with some force.   When piston comes close to the stationary magnet the spring tries to expand because of repulsion between individual strands  so that you can easily release the spring which causes immediate repulsion pushing the piston magnet back imparting energy to flywheel.   Hence expansion of spring can be considered advantageous than dis advantageous.

The idea of using piston & fly wheel arrangement is to gain time for movement of shield. If you use rotary magnet you don't get time for movement of shield.  That is the reason why it is not possible to make rotary all magnet motors.


Regards,

Vineet.K.

[Low-Q]

@Vidar,

That is well in confirmity with what I have said in my setup.   When you compress the spring, you will be holding the spring with some force.   When piston comes close to the stationary magnet the spring tries to expand because of repulsion between individual strands  so that you can easily release the spring which causes immediate repulsion pushing the piston magnet back imparting energy to flywheel.   Hence expansion of spring can be considered advantageous than dis advantageous.

The idea of using piston & fly wheel arrangement is to gain time for movement of shield. If you use rotary magnet you don't get time for movement of shield.  That is the reason why it is not possible to make rotary all magnet motors.


Regards,

Vineet.K.

The simulations show me partially what is happening. I WILL try this in practice. Now my magnets are possible to find to, so I can make this thing and see what's happening.


The plan is to use a plastic tube where I put the stationary magnet inside. Outside the tube I will wind a spring of thin wire. I have som 0.1mm nickel wire. I think nickel is magnetic. My iron wire is 1mm or so - too rigid to get a good visual of what is happening.



Vidar