FIELD: transportation.
SUBSTANCE: said utility invention relates to aviation, namely to boundary layer suction devices. A part of the airborne vehicle flown round by the ambient airflow, in particular a wing, with boundary layer suction holes in the outer shell, comprising two walls and partitions located in the space between the inner and outer walls in such a manner that they form areas (A, B) of the walls and adjoin one another so that alternating overpressure air ducts and suction air ducts are formed; the first (A) areas of the outer wall pertaining to the suction air ducts have larger area as compared to the second (B) areas pertaining to the overpressure air ducts; the overpressure air ducts are connected by a control device to the hot air source (W), and the suction air ducts are connected to the source (U) creating underpressure.
EFFECT: decreased flow resistance, increased maximum lift, prevention of hole freezing and blocking.
7 cl, 1 dwg
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