IMMERSED ELECTRIC MACHINE Russian patent published in 1997 - IPC

FIELD: electric engineering. SUBSTANCE: device has stator 1, rotor 2 which has axial channels 13, bearing housing 4 with insertion 5, which is located on sleeve 12 of shaft of rotor 2. Insertion 5 has ribs 15 with holes 16 which are located on insertion between its parts. Rib length is l, which is less than length L of hole 14 in sleeve 12. In addition sleeve 12 has holes 22 which are located at angle of $$$ to longitudinal axis of electric machine. Holes 16 in ribs 15 are located over holes 14 in sleeve which are connected to axial channels 13 of rotor 2. This design results in possibility of forced circulation of cooling liquid and supply of lubrication to bearing housing and better cooling conditions. EFFECT: increased reliability. 3 dwg