LINEAR ASYNCHRONOUS MOTOR Russian patent published in 2009 - IPC H02K41/25 

FIELD: electricity.

SUBSTANCE: present invention pertains to electrical engineering, to electrical machines and is designed for use in electric drives with progressive or reciprocal motion of actuating elements, where high triggering pulling force is required. The liner asynchronous motor has an inductor with a three-phase winding and a secondary element, in the core of which are main and extra recesses for placing electroconductive rods insulated from each other. The electroconductive rods of the primer coil in the extra recesses are put in the lower part of the recess so as to increase resistance. On one side, the electroconductive rods close the common bus, and on the other - they are closed by a moving closing element.

EFFECT: increased pulling force.

2 dwg