This is a presentation, explaining the principle of one of my inventions (patent) - pan shape electrical motor with two stator parts, placed on the same plane. Please, contact me for more details.

1. FIG.1 THERE IS THE MODEL OF TWO STATOR THREE PHASE ELECTRICAL MACHINE
WITH CONDUCTIVE ROTOR. PHASES ON BOTH SIDES OF THE STATOR ARE
CONNECTED IN SERIES AND GENERATE THE SAME MAGNETO MOTIVE FORCE.
THE SAME MODEL I SUPPOSE, YOU HAVE IN YOUR ALTERNATOR.
STATOR 1
PHASE U PHASE V PHASE W
ROTOR
(CONDUCTIVE FOR
MAGNETIC FIELD)
PHASE U PHASE V PHASE W
STATOR 2
POSITIVE
TERMINAL
FIG.2. TO MAKE IT SIMPLE, I TOOK THE TIME
MOMENT, WHEN CURRENT FLOWS THROUGH
TWO PHASES - U AND V
PHASE U
CURRENT
FLOW
CURRENT PHASE V
FLOW
NEGATIVE
TERMINAL

2. FIG.3 BROCKEN ARROWOS REPRESENT MAGNETIC FIELD FROM THE CURRENT,
FLOWS ONLY THROUGH PHASE U
STATOR 1
PHASE U PHASE V PHASE W
ROTOR
(CONDUCTIVE FOR
MAGNETIC FIELD)
PHASE U PHASE V PHASE W
STATOR 2
THIS CHART
REPRESENTS
MAGNETO-
MOTIVE FORCE
DISTRIBUTION
INSIDE THE
WORKING GAP
OF THE
ELECTRICAL
MACHINE
WHEN 0 120 360
240
CURRENT
FLOWS
THROUGH
PHASE U.

3. FIG.4 BROCKEN ARROWOS REPRESENT MAGNETIC FIELD FROM THE CURRENT,
FLOWS ONLY THROUGH PHASE V
STATOR 1
PHASE U PHASE V PHASE W
ROTOR
(CONDUCTIVE FOR
MAGNETIC FIELD)
PHASE U PHASE V PHASE W
STATOR 2
THIS CHART
REPRESENTS
MAGNETO-
MOTIVE FORCE
DISTRIBUTION
INSIDE THE
WORKING GAP
OF THE
ELECTRICAL
MACHINE
WHEN 0 120 360
240
CURRENT
FLOWS
THROUGH
PHASE V.

4. FIG.5. WE CAN SEE THAT COMBINED DISTRIBUTION OF MAGNETO-MOTIVE FORCE (OR
MAGNETIC FIELD FROM THE CURRENT, FLOWING THOUGH PHASES U AND V) HAS
ASYMMETRICAL SHAPE. IF WE USE FOURIER SERIES TO DESCRIBE THIS GRAPH, WE WILL
SEE, THAT IT HAS NOT ONLY ODD HARMONICS, BUT ALSO EVEN HARMONICS. THIS
HARMONICS DON'T PRODUCE ANY USEFUL TORQUE IN THREE PHASE SYSTEM, THEY
INTERFERE WITH MAJOR HARMONICS AND CREATE PULSATION OF THE TORQUE AND
POWER LOSSES.
PHASE U
0 120 240 360
PHASE V
0 120 240 360
PHASE
U+V
0 120 240 360

5. FIG.6. LET US SHIFT STATOR 2 ON 180 ELECTRICAL DEGREES AGAINST
STATOR 1
STATOR 1
PHASE U PHASE V PHASE W
ROTOR
(CONDUCTIVE FOR
MAGNETIC FIELD)
SHIFT STATOR 2
ON 180 PHASE V PHASE U PHASE V
ELECTRICAL
DEGREES
STATOR 2
PHASE U
STATOR 1
MAGNETO-
MOTIVE
FORCE
DISTRIBUTION 0 120 240 360
PHASE U
STATOR 2
MAGNETO-
MOTIVE 0 120 240 360
FORCE
DISTRIBUTION
COMBINED
MAGNETO-
MOTIVE
FORCE
FROM
PHASES U
ON BOTH 120 360
0 240
STATORS

6. FIG.7. ON THIS FIGURE THE MAGNETO-MOTIVE FORCE IS
COMBINED FROM PHASES U AND V. THE RESULTING FIGURE IS
SYMMETRICAL AND VERY CLOSE TO THE FIRST HARMONIC OF
FOURIER SERIES. THERE ARE ONLY ODD HARMONIC NUMBERS
PRESENT. THIS METHOD ALLOWS US TO ELIMINATE EVEN
HARMONIC NUMBERS COMPLETELY.
PHASE U
0 120 240 360
PHASE V
(TO MAKE
THIS GRAF
WE USE
THE SAME
APPROACH
, AS ABOVE
FOR
PHASE U,
ONLY IT IS 0 120 240 360
SHIFTED
120 EL.
DEGREES.
PHASE U
AND V
0 120 240 360