FIELD: engines and pumps.
SUBSTANCE: invention relates to machine building and can be used in compressors. Proposed two-section centrifugal compressor comprises housing accommodating stator of the first and second sections, intersection baffle with labyrinth seal, rotor with impellers and dummy piston and front and rear covers. Note here that stepped dumpy piston intersection chamber communicates with diffuser or pressure chamber of second section via channel made in aforesaid intersection baffle and orifice in stepped labyrinth seal.
EFFECT: better compensation of axial loads on rotor and expanded operating performances.
2 dwg
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