LIQUID-COOLING SYSTEM FOR ELECTRIC MACHINERY STATORS Russian patent published in 2012 - IPC H02K9/19 H02K1/12 

FIELD: electricity.

SUBSTANCE: cooling liquid under pressure generated by external drive of electric pump is supplied to common collector and from there liquid water supplied to all coolers. Cooling liquid heated by heat emitted by electric machine stator goes through drain pipes to drain part of collector; from there heated cooling liquid is supplied to external heat exchanger and after cooling it is supplied again to input part of the collector. Thus stator liquid-cooling system is a closed loop. Efficiency of cooling system operation is increased due to increase area of cooling liquid contact surface with active parts of electric machine stators; the more is the contact surface area the higher is cooling intensity.

EFFECT: improvement of electric machine stator cooling by provision of cooling system configuration that repeats shape of stator magnet system where cooling liquid passes.

2 dwg