last update 21/04/99
topics: permanent magnet motor
(pm^2) |
project: started: finished: description: |
pm^2 10 / 1999 04 / 2000 as i saw stefan hartmann's pm^2 picture (see below) on his webpage, i was fascinated and wanted to test his theory. i thought for about 6 months and made some simple tests. yesterday (20.04.2000) i built the final device. instead of the big upper and lower ring magnets i used a really big coil with about 100mm inner dia. the coil was driven by rectified AC. the rotating magnets are very strong neodym magnets. |
results: | i inserted the rotor into the coil and applied 12V, 2A to the coil. there was absolutely no rotation recogniseable. the second try was a arrangement with a 1.5 KW 220 V transformer. this enormous power was applied to the coil which heated up very quickly. the 10A fuse was killed after 2 minutes (power seems more than 1.5KW). the rotor was absolutely still. under full load i was able to rotate the rotor with my little finger easily. once in rotation the rotor made up to 10 revolutions until the bearing losses stopped the rotor. |
pictures: | picture 1 - overview of my device click image for 500x400, 40kb
22.04.2000 please take also a look at stefan hartmann's pm^2 folder at http://www.overunity.com/pmsquare/ if you have any suggestions, comments or enhancement ideas to this device, please mail to bitbo@gmx.de ps: my english is not perfect and i may use some strange expressions, please correct me. |
energy conversion systems - copyright '99 by bitbo@gmx.de |