FIELD: machine building.
SUBSTANCE: this invention relates to stage of the axial compressor of turbine machine with drum rotor. Rotor stage contains symmetrical wall (4) during rotation around the axis of rotation. Wall (4) contains enclosure limiting the general shape of the drum, and ring section (20, 21, 22) intended for securing of the blades (14) row, at that the specified section is made as integral with the enclosure. This section has definite shape, i.e. it has external surface limiting the gas flow, that is elevated relatively to the enclosure. This section has U-shape cross-section, opened part is directed towards the axis of rotation. The ring section contains two parts of wall, one upstream (20) and one downstream (22), ensuring connection with the enclosure and used as reinforcement parts. They are preferably perpendicular to the axis of rotation or inclined relatively to the perpendicular. Connection of each upstream (20) and downstream (22) wall parts with central part (21) of the securing section are at distance corresponding to edge of the central part (21) to exclude definite stress concentrations.
EFFECT: invention reduces overall dimensions of the unit.
16 cl, 6 dwg
