FIELD: engines and pumps.
SUBSTANCE: invention discloses the method and device for rotary device, for example, back-to-back compressor. First section has first inlet channel, at least one first working wheel and first inlet channel. Second section has second inlet channel, at least one second working wheel and second inlet channel. First and second sections share common rotor. First balance cylinder is arranged said two sections while second section is located between first inlet channels and rotor. In the case of single-section compressor, said balance cylinder can be arranged on working wheel inlet side, not on discharge side.
EFFECT: method and device for dynamic balancing of axial force.
10 cl, 10 dwg
