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

FIELD: electric machine engineering. SUBSTANCE: fluid-filled electric machine has stator, rotor and bearing shields. Two coaxially placed pipes 8 and 7 are installed in holes of frame of stator and core for stabilization of temperature of winding. One end of pipe 8 is closed with cap 10 and piston 14 is put into opposite end of pipe. Other end of piston has diameter equal to inner diameter of pipe 7. In this case inner pipe 8 and space between pipes 7 and 8 are filled with fluid. EFFECT: improved operational characteristics of electric machine. 2 dwg