| 摘要 |
<p>Inside a magnetic drive there are two rotors (r1, r2) fitted on a common shaft (s). Their rim consists of alternating permanent magnets (mr1i; mr2i) oriented in the radial direction. The gap width (g') between each end of magnet of the first orientation and the beginning of the adjacent magnet of different orientation differs from gap width (g'') between each end of magnet of different orientation and the beginning of the adjacent magnet of initial orientation. The rotors (r1, r2) are staggered from the circumferential aspect. In the radial direction there is at least one permanent magnet (ms1) or one permanent magnet (mr2) of the first or second stator (s1, s2) which are from the first rotor (r1) at a distance of (g1) and at a distance of (g2) regarding the second rotor (r2). A ring-shaped ribbon (r) from ferromagnetic material, movable between the gaps (g1, g2), each time in its extreme position completely eliminates the magnetic current between one rotor and the corresponding stator. When the movable ribbon (r) moves from one extreme position to the other, the shaft of the magnetic drive turns by an exactly predetermined angle, which depends on the number and distribution of magnetic poles both the rotors as well as stators.</p> |
