| 摘要 |
PURPOSE:To facilitate a reduction in a size and an increase in the number of poles by providing a magnetic resistance between a pair of rotors, and polarizing the pole teeth of a pair of rotors in a reverse polarity by a magnet. CONSTITUTION:A rotor 8 has a cylindrical magnet 12 at the center of a shaft 11, and a pair or rotors 13, 13' are aligned through a magnetic resistance plate using a material having a large magnetic resistance or an air gap 14 to enclose the magnet 12. Pole teeth of rotors 13, 13' are displaced by a half pitch from one another. A stator 7 is provided inside a stator yoke 16, and has a coil frame 17, an exciting coil 18 and a yoke 19. |
