Solar Type Engine
My name is Tom Phillips from Broken Arrow, Oklahoma, and I built this about one month ago.
This is a Mendocino type Solar engine, that I created after seeing a design sort of similar to it at an old engine show. After coming back home I though that I could make one that would work a little better than the one I had seen. This is my second one to design and build, the first one still works well but, this one has a smaller rotor and works much better.
It is a magnetically suspended rotor motor with no bearings and only a single contact of a the brass point on the mirror with very little friction. The motor will run from a lamp or outdoors in direct sunlight. The more light available, the faster it will run, with about approximately 600 RPM , the max .
The solar cells were ordered from eBay, direct from China with no shipping charges
(keaiwen 2009). The cells (4 each), are mini solar cells at 4V-50mA 0.2W approximately
1 x 3 ¾ x ¼ thick, epoxy coated multi-cell. Close to unbreakable. The plus and minus posts are marked and easy to solder on the back of the cells. The rotor is 2 square balsa wood with the corners machined off at a 45 degree angle, purchased at a local hobby shop.
The cells (2ea) are 26 gauge magnet wire with 100 turns for each coil. The cells are wired in series - two solar cells per a 100 turn wire coil. The shaft is ¼ with ½ rare earth magnets axially magnetized (north and south on the face), with the magnets north facing towards the center. The base has four per side ¾OD x 5/16 ID rare earth magnets with the north facing towards the center. The base driving magnet is inlayed into the floor of the motor slightly offset towards the front. It is a 3/8x 1x 3/16 thick rare earth magnet with the north pole facing up towards the rotor .
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