FLUID-FILLED VERTICAL ELECTRIC MACHINE Russian patent published in 1994 - IPC

FIELD: electric machine engineering. SUBSTANCE: fluid-filled vertical electric machine has stator 1, rotor 2, bearing shields 3, 4 where bearings are installed. Cores of stator and rotor have through axial ducts 7 and 8 correspondingly. Upper bearing shield 3 and lower bearing have holes for drain of fluid. Inner surfaces of lower shield 4 and bearing are manufactured with bevels towards drain holes located in zone of rotor shaft. Pistons composed of three parts, center one having smaller diameter than end ones, are mounted in specified holes. EFFECT: simplified design, increased operational characteristics. 3 dwg