Please Read the Whole Thread
Dear Necchi,
The simple answer to your question is NO! First of all, I recommend you read this whole thread from the beginning. Most of the design issues have been addresses in the thread. The "S" rotor has problems of early magnetic saturation out in the tips of the "S" structure and did not perform well in bench tests done right after the film was produced. I put a page on my website with the "X" rotor design shortly thereafter as a correction. All of these issues have been discussed in the thread.
The other problem is your requirement of extremely slow speed and high torque. The magnetic forces act quite quickly to produce the attraction stroke, so getting very slow speed would require a large diameter machine with hundreds of small pole faces so that each attraction stroke only advanced the rotor a few degrees of arc. Even then, to get down to such slow speeds as 0.5 rpm would require even further mechanical gear reduction.
I hope this helps.
Peter
Originally posted by Necchi
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The simple answer to your question is NO! First of all, I recommend you read this whole thread from the beginning. Most of the design issues have been addresses in the thread. The "S" rotor has problems of early magnetic saturation out in the tips of the "S" structure and did not perform well in bench tests done right after the film was produced. I put a page on my website with the "X" rotor design shortly thereafter as a correction. All of these issues have been discussed in the thread.
The other problem is your requirement of extremely slow speed and high torque. The magnetic forces act quite quickly to produce the attraction stroke, so getting very slow speed would require a large diameter machine with hundreds of small pole faces so that each attraction stroke only advanced the rotor a few degrees of arc. Even then, to get down to such slow speeds as 0.5 rpm would require even further mechanical gear reduction.
I hope this helps.
Peter
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