Free Armature motor

[allcanadian]

Free Armature Motor

[allcanadian]

This is a motor I have been working on and I was wondering if you could help me pick this apart-Critize it's shortcomings or improve it.

Construction:
The armature consists of metal washers bolted together on a shaft which is free to rotate on bearings,the shaft is conected to a load. Three permanent magnets are mounted on the rotor externally-spaced 120 degrees apart, all same poles facing outward.
The free armature is metal flat iron, laminated if possible, and pivots through 30-45 degrees movement on a central point, a bearing. Movement stops(black squares) limit the movement of the armature,so it does not contact the moving rotor.The free armature is wrapped with insulated wire all in one direction to form an electromagnet, which can effectively have it's polarity switched.

Operation:
In the picture above, the top permanent magnet has been attracted to the free armatures iron laminations, the rotor is turning counter-clockwise, when the armature has come into register (alignment)with the permanent magnet on the rotor power is turned on to the electromagnet. This repels the free armature upwards away from the permanent magnet(PM) on the rotor, Any force applied to the rotor PM at this point is due to the fact that the free armature(FA) has mass thus inertia and will resists rapid movement. As well because the FA is an electromagnet it has two poles,while the left side of the FA is repelling a rotor PM, the right side is attracting another rotor PM. The power to turn on the FA electromagnet is very short in duration because the FA is moving away from the rotor PM-it is not pushing the rotor PM to any extent, thus it cannot be affected by the load of the rotor. When the right side of the FA has moved inward it hits the stop, the next rotor PM is attracted into register, the FA electromagnet polarity is reversed and the cycle continues. It is interesting to note that at this point on the left side of the FA there is no magnet nearby to attract, the PM that was repelled earlier has moved past, so the PM which was just repelled is attracted to the opposite end of the FA. So really nothing in this machine resembles symetry found in conventional motors.

What have we gained?
Logically we have a common repulsion motor like bedinis SG, only bedinis SG has a solid mounted stator or electromagnet, the FA motor has a moving stator(armature). Why?
Bedini's SG stator electromagnet when repelling the PM on the rotor must carry any load attached to the rotor, this load is translated to a longer on time,the longer the stator electromagnet is powered on the more energy it uses! So what if the stator(armature) was free to not repel the rotor PM, but move away from the rotor PM very quickly, the on time thus power used must be reduced. As well the SG stator electromagnet has two poles, but only one is being used, the one repelling the rotor PM. In the end any energy gain is provided by the fact that a PM on the rotor is attracted to the stator while carrying the rotors attached load. The trick is to remove the stator(armature) from the rotor PM useing the smallest amount of energy possible, reduced on time = reduced input. So conventional DC motors are always on 100% of the time, this FA motor in on 10% of the time.

[allcanadian]

This design is better I think

[CLaNZeR]

This seems to be the same principle as the Glass Seg I posted in another thread.
http://www.overunity.com/index.php/topic,1635.0.html



It uses a cantilevered setup but goes along the same lines.

I like what you are saying here allcandian and reckon your armature design will be easier to mill out and play compared to the Glass Seg setup.

Regards

Sean.

[allcanadian]

It should propably be clarified that the free armatures do not have permanent magnets on them, the blue/red coloring on the ends only shows the polarity of the electromagnet at that time. The arms are all metal, wrapped in wire(electromagnets), as well because in the second design the arms are symetrical and move at the same time they could be connected with a linkage. Im not a big fan of adding moving elements to a PM motor, but the OU requirements are fairly simple-
1) the electrical input cannot carry nor be affected by the load.
2) the electrical input regardless of whether it is "on" or "off" cannot create backdrag on the rotor.