Paul Brown Variable reluctance generator.American Inventor Patent number and address unknown
If any one can help let me know so he can get the credit He deserves.
I believe he has built several units but not sure how successful they were.
The normal way to generate electrical current is to pass a a conductive wire through a magnetic field.
In this unit there is no need to move a heavy coil of wire and metal armature thus removing some of the power loss.
In this application two permanent magnets or electro magnets are placed opposite each other at 180 degrees.
At ninty degrees to the magnets are mounted two field pick up coils.
In the centre is a disk that has two metal magnetic influenced outer sections and a non magnetic influenced centre section.
The disk is rotated at speed and when the metal sections are in a position to provide a magnetic pathway from the permanent magnets to the field pickup coils and back again this will result in a electric current being induced in the coils.
By having the disk magnetic metal sections cutting in and out of the magnetic pathway will give an A.C. current/voltage output. Slightly changing the wiring setup could also give you a pulsating D.C. output.
The two disks could be made by using a fibre glass mould to give a disk shape and allowing the outer sections not to be filled and when mould has been set, put compacted metal filings in these sections and then given a final layer of fibre glass to seal metal section.
If you have a metal workshop you may be able to make better disks by using an aluminium core and magnetic outer metal pieces and use allen bolts to hold it together.
The unit should be built with laminated steel pole pieces to prevent magnetic strength losses and where there is a reversal of the magnetic force.
There is also a need for small air gaps ,the best insulated wire and sufficient length for the correct magnetic strength. You will need to construct it on a non magnetic frame to prevent magnetic losses.
Also select a suitable prime mover to drive the unit. Whether a D.C. motor, Hydro Wheel or windmill.
Using this setup means no relative motion between coils and the magnetic field and the disk will accelerate into the permanent magnet poles and slows down on the way out and therefore should result in a steady speed.
The voltage is directly related to the change rate of the magnetic field and speed of the rotor.
Amperage is related to how long the pole faces are in position with each other.
