Abstract: A linear induction motor comprises an inductor made of individual cores with a concentrated polyphase winding placed thereupon and having legs connected by a yoke. A secondary element located on the leg butt side is provided with a magnetically conductive base intended to close the magnetic flux in the transverse direction with respect to the motion and whereon the main electrically conductive part is positioned. The butts of the lateral core legs have main chamfers on the inside, whereas respective surfaces of the main electrically conductive part of the secondary element are made congruent to the main chamfers of the butts of the lateral legs. In this case the magnetically conductive base has a surface congruent to respective surfaces of the main electrically conductive part.

Abstract: An asynchronous line-fed motor comprising an inductor composed of individual laminated cores which form two rows extending in the direction of travel of the magnetic field. Each laminated core is formed by rods having pole shoes at one end and enveloped by yokes at the opposite end. The pole shoes of the laminated cores of the second row link the laminated cores of the first row to one another and are interposed between the pole shoes of the laminated cores of the first row. The yokes of the laminated cores of the first and second rows face in opposite directions. Coils of a concentrated multiphase winding are wound around the yokes of the laminated cores. The motor also includes a secondary current-carrying element disposed in the air gap between the pole shoes of the laminated cores.

Abstract: An electromechanical energy converter comprises a linear induction motor and a switching assembly. The linear induction motor includes an inductor formed of individual transversal laminations with windings and a secondary element. The transversal laminations are provided with slots and the winding of each transversal lamination is a distributed winding having sections connected to the switching assembly which either connects the winding of one transversal lamination to one phase of an a.c. power source and the windings of the subsequent laminations to the other phases thereof or connects the winding of each transversal lamination to all phases of the a.c. power source. This invention permits a longitudinal or transversal movement of the inductor and uniform transversal distribution of a magnetizing force within an air gap between the inductor and secondary element.

Abstract: A linear induction motor comprises an inductor made of one row of main U-shaped transversely laminated cores and not more than two rows of such additional cores which are enveloped by a main polyphase distributed winding and an additional polyphase distributed winding, respectively, and a secondary element interacting with the inductor. The secondary element is provided with an electrically conductive part placed upon a magnetically conductive base. Legs of the main and additional U-shaped cores alternate and adjoin one another forming two toothless active zones through which the secondary element interacts with the inductor.

Abstract: A linear induction motor comprising an inductor formed of three rigidly interconnected longitudinal laminations provided with slots. The slots arranged on the side of a secondary element are adapted to receive motor windings. The secondary element includes an electrically conductive part formed of two angles and arranged on a ferromagnetic base. Horizontal flanges of the angles are arranged under the two extreme inductor laminations and apexes of the angles face each other. The middle inductor lamination is enclosed within the gap between vertical flanges of the angles so that slots therein are turned in the direction of one of the angles. The middle lamination is provided with slots arranged symmetrically with respect to the slots on the side of the first angle and suited to receive an additional winding.