energy conversion project: GerMagGen

project: patent: started: finished: description:	GerMagGen US5191258 - click here 08 / 1999 no as i heard about the patent from James W. German i thought for about 3 weeks about the concept and made several diagrams and drawings to understood the magnetic flux lines and field forces. after that period of theory i thought, that it is worth to invest some money and hard work at the lathe to build a prototype for first measuring tests. in august 1999 i made the rotor and some aluminium support pieces. because of urgent projects at work it took 5 weeks until i continued at the rotor design. the rotor consists now of an aluminium disc with two 20mm holes containing soft iron cylinders with 20mm diameter and 15mm length. the magnetic field is supplied from 4 ferrite block magnets 40x20x10mm. the field goes through a 20x20mm soft iron support. a standard transformator coil collects the magnetic field from this soft iron support and generates current from the alternating field strength. a standard motor (graupner, 9,6 volt, 10 ampere) rotates the disc up to 28000 upm. all other parts of the device are support. from 09/10/99 until 09/12/99 i worked 23 hours to complete the device and the first test was 09/12/99 at 03:00pm.
results:	when the device is switched on, the motor uses 10 ampere at 6 volt (60 watt) with a rotation speed of ca. 3000 rpm. the best result had a coil with 38 ohm. the output was 2 volt, 10 milliampere at 100 hertz. this is not very much and because of that, it could not be checked if the input power decreases. but this was the first test under bad conditions: 1. i was not able to vary the rotation speed to search for resonance ... 2. the air gap of the rotor had to be adjusted to 20 mm, because the motor is not strong enough ... 3. i used very weak ferrite block magnets 4. i used a standard voltmeter, no (true)RMS next plans: 1. i will use a bigger motor. 2. i will use a variable voltage supply. 3. i will use Neodym magnets. 4. i will use the shortest possible air gap. 5. i will use an oszi to measure the output.
remarks:	3 days after the first test i had a very good idea while thinking about the device. i will not write it down here until the idea has been checked - this will take ca. 3 weeks to build a new device with different design. undependent of this new idea i will try the above mentioned enhancements and will keep you informed here.
pictures:	picture 1 - overview of the device, which has not be completely assembled to be able to see some details click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) picture 2 - detailed view of the rotor, you can see here the soft iron cylinder (top of picture) pressed in the aluminium rotor and the position of the block magnets click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) picture 3 - top view of the device, which has not be completely assembled to be able to see the soft iron square click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) picture 4 - back view of the device, you ca see here the two soft iron cylinder and the soft iron bar which holds the coil click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) picture 5 - side view of the fully assembled device, click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) picture 6 - perspective view of the fully assembled device, click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) picture 7 - detailed view of the fully assembled device, you can see here the magnets - if you can see the iron bar at the right, you may notice, that is is 4mm higher than the magnets, this is not a hidden improvement or something else - just a design-failure click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) picture 8 - same detailed view as picture 7 - top view. the support holding the magnets in position can be seen here, without that support the magnets wobble when the rotor rotates. click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) picture 9 - view of motor and transmission coupling click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) picture 10 - one view of a measurement test - here you can see a torque measurement with a digitigal balance - on the right you can see a thin long screw at which the position of the rotor could be adjusted - simple and not exact measurement, but it told me important details for the next designs click image for 800x600, 50kb or here for fullsize (1280 x 1024, 160kb) if you have any suggestions, comments or enhancement ideas to this device, please mail to bitbo@t-online.de
ps:	i am sorry for some typo errors and/or strange expressions, but my english is not as good as i would like - please correct me