FIELD: electronics.
SUBSTANCE: invention discloses specified pressure drop maintaining systems and methods between cooling oil (110) of electric motor (102) and process gas working fluid medium (108) of compressor (104), axially connected to electric motor (102). Cooling oil (110) acts as coolant of electric motor engine compartment, a working fluid medium (108) acts as coolant of electric motor (102) rotor compartment. At least one bellows (134) forms two leak-tight compartments in pressure compensator, and spring device (136) provides for addition of excess pressure to cooling oil with elimination of leaks between flows of said two fluid media from cooling oil to working fluid medium and with prevention of working fluid medium contact with electric motor stator, in particular with electric motor plates and its windings.
EFFECT: invention is aimed at prevention of process gas and cooling oil mixing.
14 cl, 7 dwg
