| 摘要 |
A synchronous alternatori is composed by a stator portion comprising one or more disc-shaped plates each carrying coils in a number multiple of three, and by a rotor portion, coaxial to the preceding, comprising one or more disc-shaped plates each carrying permanent magnets in a pair number different (greater or lower) than the number of coils of each stator disc, each of the magnets of each rotor disc being oriented with inverted poles with respect to the preceding one and between each stator disc and the subsequent one a rotor disc is placed, so that the rotation thereof results in a variation of linked magnetic flux with the coils, determining, the generation of alternated electrical current with variable frequency, in absence of relevant phenomena of braking actions due to the attraction between linked axial magnetic fluxes and coil ferrous cores and due to the fact that the number of magnets in each rotor disc is different to the number of coils in each stator and that each coil is angularly staggered with respect to the corresponding one of the subsequent stator disc, so that the braking effect on the first coil is completely or partially balanced by an accelerating effect determined on the second coil. |
