FIELD: machine building.
SUBSTANCE: invention relates to cooling devices of engines and can be used for cooling of electric motors of pump units. Device comprises cooling circuit of electric motor and high-temperature circuit, filled with volatile liquid and connected to each other by means of heat exchanger and evaporator, compressor and throttle, wherein the compressor is installed in the high-temperature circuit, and the throttle is in the motor cooling circuit, the evaporator is connected to the fan which is installed on the electric motor shaft, besides, the fan and the evaporator form a common duct of the air duct, providing a cooled air flow directed to the electric motor from the fan and the evaporator, and through the heat exchanger housing there passes a flow of liquid medium pumped by pump, contacting with coil of heat exchanger.
EFFECT: invention solves task of increasing technological level of works on pumping of liquid media by pump in closed room, due to effective utilization of excess heat.
4 cl, 1 dwg
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