FIELD: engines and pumps.
SUBSTANCE: proposed wall comprises substrate with first and second surfaces, groove and multiple through holes. Said groove is located in second surface and comprises bottom surface parallel to second surface, first lateral wall and second lateral walls. Groove first lateral wall is perpendicular to second surface and comprises multiple sections with skewed edge. Said sections are connected with second and bottom surface. Aforesaid through holes extend through substrate from first surface to bottom surface so that section with skewed edge is located between two through holes.
EFFECT: higher efficiency of film cooling.
9 cl, 2 dwg
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