FLUID-FILLED ELECTRIC MACHINE Russian patent published in 1995 - IPC

FIELD: electric machine engineering. SUBSTANCE: fluid-filled electric machine has case 1, core 2 with winding 3, rotor 6, bearing shields 4 and 5. Ring pipe-lines 7 provided with number of holes in face surfaces are positioned directly in zone of front parts of winding 3. Each pipe-line has cone branching 9 in upper part with holes 10 and 11 on face sides. Thin-walled caps 12 are located in case 1 in zone of cone branching. Pipe-line 7 and cap 12 are produced from material having thermal conductivity greater than material of case 1 and bearing shields 4 and 5. EFFECT: enhanced operational reliability and stability of electric machine. 2 cl, 1 dwg