Flynn's Parallel Path

[JackH]

Hello lancaIV,

In the past severial years I have been checking out all of the very efficient motors that are working at %95 TO %98 efficiency.  However one problem exist with these motors.  Yes thay are brushless motors and the motor it's self does have the high efficiency rating.  However these motors need a special controll unit to run them.  If you check the power input to the controll unit against the power output from the motor, most of them are running at around %75 efficiency.  The power unit is loosing the efficiency.

Later,,,,,JackH

[lancaIV]

Hello Jack H.,
I think that the energy "consume" of the controller part is max.10%,
so the range 85% is possible !
But this is only a part of the "puzzle" !

Sincerely
            de Lanca

[lancaIV]

Similar to Flynn`s PP motor,
Kango IIDA(JP2004194491) - generator,
and           WO2004057740.

!!!:The WO abstract-in short form-:
starter+ motor +generator combination

WO-images,page 2:diagramm-?

S
  dL

p.s.:for the static generator trial the Keiichiro Asaoka
      publications JP2003079128 (MEG-"clon"?Filling:03.09.01)and
      especially JP2003009558(modul/units)
      could be also a help !

[jake]

http://groups.yahoo.com/group/pes_flynn_pp/message/160?threaded=1&var=1

Interesting results of Flynn replication used as a MEG.


From the above link:

Dear Mr. Sterling,
I've found your site extremely interesting and well organized.

I'm sending some pictures of my replication of Flynn's PP demonstration
device.

The four laminates pieces are 1 cm wide and stack for about 8mm total thick.
The ceramic magnets are cilinders of 1 cm diameter and 1 cm tall, 4 stacked
for 4 cm total lenght.

The coils are made by 0.4mm wire, 560 turns for each one, wired as
instructed.
The third, small coil you see in the picture is 75 turns and I used it just
for study the induced signals.

I have used a 0.2mm Aluminum sheet for creating the gap.
Following are the results of two series of experiments.

1. find the "zero flux" current : the flux is zeroed for a current of about
130 mA , corresponding to about 1.2 V across the two coils; under that
condition
the opposing branch fall off and if you try to put it back in place you can
clearly feel no force acting on it.
Note that w/o the gap the current needed to zero the flux falls down to 60
mA.

The force was then measured by means of a scale arranged so that I could
gently pull down the device and measure the force:
-with the magnets I have found a max force of 650 g (min was 600 g)
-without magnets but same current, the max force was 200 g (min was 150
g)
-with the magnets but without current the force was about 400 g but
measurements
were very scattered.

These numbers suggest an increase of force of about 3.25

2. I have then installed a piezo electric probe in the gap and fed the coils
with the output of a transformer; a 1K potenziometer was used to adjust the
current as per test 1, this current was measured through a 1 Ohm resistor
, 5% accuracy (need to measure its real Ohm).
The 3 oscilloscope pictures show the piezo signal (top trend) and the
current
to the coils (btm sine wave at 20 mA/Div). Time base was 5 ms/Div.
- Without magnets, the piezo signal is at 100 Hz (two hits for every current
period) , about 240 mV wide
- With one magnet (located in opposite position w/ respect to the branch
with the piezo probe) the signal becomes about 450 mV wide
- With the two magnets in place the signal is now at 50 Hz of about 780
mV wide and the current was not changed at all.

The force is magnified by about 780/240= 3.25 times (by coincidence close
to the scale tests) without any increase of the power to the coils.

Note that the current was swinging between about [+45mA, -45mA] +-5% and
the gap was close to 1 mm due to the piezo thickness: with that current the
flux was probably not completely zeroed and this may explain why the shape
of the force wave is not a perfect sine. I shall repeat the tests with
higher
current.

Note that while the absolute value of magnetic flux is almost double with
the magnets, its variation with time does not seem to change very much when
compared with the one you get without magnets. The use of PP effect for
electric
motors seems to be the "easiest" way of trasforming this magnetic energy
into useful work since inducing the signal into secondary coils seems to
be a little tricky, so far no change was observed in the secondary coil
induced
signal when magnets were added, at least using the 50 Hz sine wave.
If we use the piezo curves to compare the variation of flux with time, with
and w/o magnets, we get (according to my questionable "eyes" reading):

- w/o magnets : signal (force) is about 240mV/5ms = 48 and its square root
is 6.928 units
- with 2 magnets the signal slope is about 780mV/13.5 ms=57.77 and its
square
root is 7.6 units

So 7.6/6.928=1.096 , we should expect almost 10% increse in the energy
recovered
by the secondary coil but this was not the case: so far, I could not detect
any appreciable change in the sine wave induced by the magnetic flux in the
secondary coil.

I would appreciate very much any advise and comment to improve the tests
or correct mistakes, I'm learning a lot.

Thanks,

Guido Capone
ITALY

I am presently doing some calcs with FEMM software but the best I
could do is to simulate a sequence of steady states, just frozen
situations. In a dynamic state, where Lenz's law and input Volts-
induced Flux phase shifts (as in normal transformer) are involved,
the results may be very different. I know I'm missing the key of it
but at least I'm learning.
So far, however, what I found is that the overall flux change with
time (i.e. dB/dt or I'd better say dB/di) induced by the current is
not different w/ and w/o magnets. The big difference is in the
absolute value of B flux: it doubles with the two magnets in place.
This would theoretically confirm that it can not be operated as a
normal transformes, as we well know.

From a later post on the same site.

[penguin hood]

Anybody can answer this question:

Switching a magnetic flux from permanent magnets beetween two closed magnetic paths using coils. When the electric pulse is OFF, the magnetic field return to initial state (same flux on both magnetic paths) or remains on the magnetic path where was confined when the pulse was ON?