FIELD: mechanical engineering; gas turbines. SUBSTANCE: invention relates to component forming blade or vane of rotary machine provided with rotor rotating around axle. Proposed component has inner space forming passage for cooling fluid medium and limited by first and second walls pointed to each other and at least first ribs projecting from first wall and passing parallel to each other to form first channels for fluid medium from first inlet part of channels to rear outlet part channels. First ribs pass in first direction, forming first angle of tilting relative to axle in front part, and in second direction, forming second angle of tilting relative to axle in rear part. First angle is large than second angle. EFFECT: improved cooling of rotor blade of stator guide vane or any similar rotary machine. 14 cl, 8 dwg
