LINEAR ASYNCHRONOUS ELECTRIC DRIVE Russian patent published in 2017 - IPC H02K41/25 H02P8/42 

FIELD: electricity.

SUBSTANCE: electric drive 1 contains an inductor 2 of two cores with a winding of separate coils 3 on the gears of the cores 4 and an electrically conductive anchor 5. On the gears of the inductor there are two shielding turns 6 with leads connected to reed switches 8, the coils of which are connected to the switching device 9, which provides simultaneous closure of at least eight screening turns located on four adjacent teeth of both cores and forming the initial row. The first two gears on each core are closed turns, shielding their right parts in the direction from left to right, and on the third and fourth gears - coils shielding their left parts. For the beginning of the armature step, the switching device opens two turns shielding the left parts of the fourth teeth of both cores, and to complete the step, the turns shielding the right parts of their first ones and closes the turns shielding the right parts of their second and third gears and the turns shielding the left parts of their fourth and fifth gears. After the step is taken, the switching device opens additional and shielding turns on the second and third gears of each newly formed series. On each gear there are short-circuit turns arranged at sides of conductor teeth adjacent to each other, which partially screen them and are perpendicular to turns screening right and left parts of each of their gear.

EFFECT: increasing the efficiency by reducing electrical losses.

7 dwg