A rotary electric machine includes inner and outer rotors each including
permanent magnets, and a stator including stator coils, disposed between
the inner and outer rotors. The inner rotor further includes outer
surface portions serving as a yoke portion of an outer magnetic circuit
for magnetic flux synchronous with the outer rotor, and the outer rotor
further includes outer portions each located on an outer side of one of
the outer permanent magnet, and arranged to serve as a yoke portion of an
inner magnetic circuit for magnetic flux synchronous with the inner
rotor.