ELECTRIC MACHINE Russian patent published in 1998 - IPC

FIELD: electrical engineering, submersible ship electric machines. SUBSTANCE: proposed electric machine has frame 1 with rings 6 being pressed into grooves in its surface. Three-phase extended winding 4 made of wire with polymer insulation is laid into slots of package 2 of stator. Sleeve 10 manufactured from composite magneto-and current-conductive material is pressed over packages 8 of rotor. Round rings-protectors 11 are inserted into end faces of bushing close to steel package 8 of rotor and are welded to it. EFFECT: enhanced functional reliability, prolonged service life of machine due to prevention of contact erosion of frame, improved energy and starting characteristics. 1 cl, 4 dwg