LIQUID-FILLED VERTICAL-SHAFT ELECTRICAL MACHINE Russian patent published in 1995 - IPC

FIELD: electromechanical engineering. SUBSTANCE: liquid-filled vertical-shaft electrical machine has stator 1, rotor 2, shaft end seal built up of movable member mounted on shaft, fixed member press-fitted to movable member by means of spring 5 and locked in position against turning by means of pin 9. Movable member is essentially stop 3 and fixed member is bush 4 with boss on its inner side facing stop 3; boss is placed through height above sealed joint between stop 3 and bush 4; machine interior is filled with liquid 14 whose specific gravity is below that of liquid surrounding machine. EFFECT: improved design. 2 dwg