Spring Screen Magnetic Engine

Arrow · February 21, 2012, 06:29:15 AM

Quote from: Low-Q on February 20, 2012, 07:22:38 AM
Wonder how the stationary magnet will affect the springs behaviour - how it actually feels like compressing and

Vidar

Dear Vidar, let me guess:) compressed spring will shield mag.flux but not on 100%, somewere 70-80% because spring weirs will have little (micro) air gap. If you want to see 100% shielding of 2 magnets - get 2 old HDD, remove head Neo magnets and try to stick them bottom to bottom side - I have 100% flux shield effect at such magnets and can prove it by video in such demand.

Low-Q · February 21, 2012, 07:12:03 AM

Quote from: Arrow on February 21, 2012, 06:29:15 AM
Dear Vidar, let me guess:) compressed spring will shield mag.flux but not on 100%, somewere 70-80% because spring weirs will have little (micro) air gap. If you want to see 100% shielding of 2 magnets - get 2 old HDD, remove head Neo magnets and try to stick them bottom to bottom side - I have 100% flux shield effect at such magnets and can prove it by video in such demand.

You have a good point, but the "main point" is to change flux density from the stationary magnet which affects the moving magnet. A 100% shield is no point. You also see that conventional electric motors does work with just a little current applied to the electromagnets, but higher current and higher flux density increase RPM and power.

The main point here is to proove the concept of spring shielding. However, I have a feeling that the spring shielding responds similar to any other kind of shield which is going in and out of a magnetic field. It takes more effort to shield a magnet if another magnet is already in close proximity, than far away (or the opposite if the polarity on one magnet is reversed). These magnetic shielding properties is the key reason why alternating shielding that is driven by the machine itself cannot sustain or increase its own power in a closed loop.

I think the spring theory (not string theory) is an interesting concept anyways, so I want to try it out in practice.

Vidar

Arrow · February 21, 2012, 09:54:24 AM

Quote from: Low-Q on February 21, 2012, 07:12:03 AM

I think the spring theory (not string theory) is an interesting concept anyways, so I want to try it out in practice.

Vidar

Interesting direction of research, it is close to low power magnet actuators but already with additional smart flux flex control.
guess it ( spring will need some programmed hardware & software to monitor the system behavior to be squeezed or released...
hmm...

Low-Q · February 22, 2012, 02:24:32 PM

Quote from: Arrow on February 21, 2012, 09:54:24 AM
Interesting direction of research, it is close to low power magnet actuators but already with additional smart flux flex control.
guess it ( spring will need some programmed hardware & software to monitor the system behavior to be squeezed or released...
hmm...

No need for software. The spring with the magnet inside can be compressed partially with a mechanical springloaded device. When another magnet is approaching the spring, the spring will respond with further or less compression due to change in magnetic flux in the gap between the stationary and the moving magnet. The change in the springs compliance will affect the mechanism which compresses it, and the result can be seen visually.
If the spring compress further in repel mode between the magnets, we will possibly have a problem. Because the spring is suppose to be expanded in order to make the magnet inside to repel the moving magnet. If the spring is held back from expanding properly, more energy must be applied to the spring in order to expand it. And when the moving magnet is farther away, when the spring is suppose to compress, it will take additional energy to compress it in order to let the moving magnet move back towards the stationary magnet. My guess is therfor that the extra energy needed to expand and compress the spring, will counter the energy gained by the magnets.

However, if the opposite happens, we have a good approach to a selfsustaining machine.

To simplify the design, the moving magnet can be a rotary magnet instead. To let it run a piston will be harder to assamble and less efficient - if efficient at all.

I will do some FEMM simulations on this. The results will be posted here.

Vidar

Arrow · February 22, 2012, 06:41:02 PM

Quote from: Low-Q on February 22, 2012, 02:24:32 PM
...that the extra energy needed to expand and compress the spring, ....

Vidar

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