FIELD: machine building.
SUBSTANCE: system of gas input and output is intended for the rotation machine handling the fluid; the machine at least contains one stator body, one first stage to receive gas supplied to the machine, one last stage after which the gas is exhausted from the machine, and at least one intermediate stage between the first and last stages. Each stage contains one centrifugal rotor and connected with it fixed pipe made in the mentioned stator body. The system contains at least one first volute for gas exhaust from the machine, and at least one second volute for gas inlet in the machine, that are functionally connected with at least one stage of the machine.
EFFECT: system ensures gas input and/or output by the reverse method via at least one stage of the machine.
11 cl, 4 dwg
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