FIELD: machine building.
SUBSTANCE: turbomachine has the first and the second successive ring rows of the fixed blades. Each blade of the second row passes in a radial plane, that passes between the rear edges of two successive blades of the first row, wherein the pitch between these two blades of the first row exceeds the pitch between other blades of the first row.
EFFECT: invention reduces pressure losses and aerodynamic interaction between the two rows of the blades due to the passage of wakes, created at the level of the rear edges of the blades of the first row at one and other sides from the blades of the second row.
6 cl, 3 dwg
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