LINEAR ASYNCHRONOUS ELECTRIC DRIVE Russian patent published in 2012 - IPC H02K41/25 H02P25/06 

FIELD: electricity.

SUBSTANCE: linear asynchronous electric drive 1 contains an inductor consisting of a core including a heelpiece 2 and teeth 3. The heelpiece 2 is designed in the shape of a rectangular lattice at the points whereof the teeth 3 are positioned. The electrically conductive secondary element 4 is positioned on ball rests 5. The inductor winding 6 is designed to be single-phase. Each teeth has three loops positioned in its butt-end part, all the loops outlets connected to circuit closer devices such as reed relays. The first pair of loops 7 are positioned parallel to each other while the other pair of loops 8 is perpendicular to the first one. The pairs of loops 7 and 8 are intended for shielding the tooth edge parts. The coils 9 of the reed relays are connected to the commutation device 10 controlling the magnetocontrollable contacts 11 of the reeds. The single-phase winding 6 coils are connected to a single-phase voltage source via the master switch 12. Fixation of the electrically conductive secondary element 4 may be performed by four longitudinal or four cross-wise rows of shielded teeth 3 with the loops shielding the last tooth in the row opened to provide for the secondary element pitch.

EFFECT: provision for pitched relocation in the longitudinal and the cross-wise direction during power supply to the inductor winding from the single-phase voltage source.

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