-----Original Message-----
From: Mark Goldes
Terry, Michael, Vo,
Here are some edited comments from a member of the MPI engineering team
that might be of interest. Comments that would reveal proprietary
information have been omitted.
"The PDF details a properly done analysis of True Power input, and
actual torque output. Sprain does not seem to capture BEMF, but still
this carefully, and independently measured performance is a mere 25% by
accurate means!!!
(Sprain) is ignorant of how to measure, and the best (no losses)
simulation of his form is reciprocal.
(You will find that the rest of the power is eaten by I^2R, and
friction - ...it is nothing more than a pulse motor with the added
(drag mostly) of the spiral ramp of stator mags added to the pulse
motor. the ramp of PM's does nothing but add a reciprocal boost and
drag, and contributes nothing to the gain mechanism, except eddy drag
of the conductive magnets.) ..(there is nothing of merit in Sprain's
design).
(This measurement of Sprain's device is doing only useful COP - ... and
is only 25% useful).
<><><><><>
Yes, BEMF could add to the efficiency. I do not understand what is
meant by "simulation of his form is reciprocal". You seem to agree
with Michel.
Thanks for your input. Possibly some day you can share more of the
analysis so that my feeble mind can understand what is being said.
Terry
