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   Small ‘Buzz Generator’ and ‘Big Buzz’

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BUZZ Generator   Small Air motor/generator

 This is an option that combines  an air motor and alternator into one .  This is a simple double acting piston setup with magnets built into the piston itself.   The generating coils are on the outside of the piston chamber.. This sytem can be scaled up easily. As long at it is mounted vertically it would be self starting.

 Theory of operation: compressed air enters through sidewall of chamber and through the internal port of the piston itself to exit out the top into the expansion chamber. 
  Expansion causes the piston to move to the other end of the chamber when the air then exits via the exhaust line.  When the piston reaches end of travel the opposite side of the piston starts the operation all over again. The bounces the piston back and forth in the chamber causing the magnets to pass back and forth the coils generating electricity.
    The alignment bar in the chamber simply keeps the inlet ports on the piston aligned with the inlet ports on the chamber.
  The supply air should probably have a inline oiler attached to provide lubrication for the piston.
  The device will become cold in operation and electronics should be sealed to prevent moisture do to condensation.
  This type system can be scaled up or down to whatever is needed as along as there is enough compressed air available .

 The second pic is the magnetic field plot of the magnets in the piston that was created with a program called visimag. 
  All the magnets in the pic have each section showing have the same end facing out.
 Each layer is arranged opposite from the last meaning a layer of all south outward facing magnets then a layer of north outward facing magnets and then back to the south ends again or they can be set up so all of them face the same way . It really doesn’t matter as long as each coil has it’s own fullwave recifier circuit as shown in the drawing.

  There are many different ways the magnets and coils can be set up on this system. It could use coils withen iron laminations, straight coils as shown, etc…….

The bottom pic is an animated view so that the operation of the piston is clear.

                                BIG BUZZ
Opposed Piston Engine with built in linear alternator
Compressed gas ‘2-stroke’ type operation

  Since I have been working on a design lately for a continuos run system that propane or freon/R134 for the pressure gas I decided to see if I could scale up the buzz-generator to something that would actually be capable of generating a decent amount of power. It’s the only thing I have been able to come up with so far that doesn’t use diaphrams and  I’m not real comfortable using a scroll compressor in a design as I’ve never really have one to work with.


  This is what I ended up with as an alternative.  I call it the BIG-BUZZ.  The electrical section should be capable of generating up to about 450 watts for battery charging on a 12v system. But I warn you now. It has to be solidly mounted down or it will dance all over the place during operation. 

This is the complete side view – it’s a big picture!

This is a top down view of the center generating section

The next three links are full page size pics of the top, middle and bottom section that can be printed out and overlayed on one another for an easy to see large version.

 After thinking about it for a bit I decided to see if I could come up with a simple system so the BIG BUZZ could drive external devices.  There are a number of was to do this and the simplest is a mechanical seal on the shaft.  This can also leak though so I went with the magnetic type of drive that is sealed.

This is a top view of the center drive section that the next two pictures show as a cable drive system. I drew in the gears on both sides to show that different outputs could come from the same engine.  One shaft turns .7 tenths of a rotation per stroke while the other turns 1.4 rotations. Different outputs are simple to achieve.  You can even have one side turn one direction while the other turns opposite to it.

Side view of the cables and how they are connected to the center drum

 Another side view of the same setup

 This is basically the same thing but uses only gears in the system, no cables

This is more conventional. It allows the shaft to still move straight back and forth while turning the crank disk with the pin and ball bearing.  (larger pic)

 All of these could use the same output