РАБОЧАЯ ЛОПАТКА ТУРБОМАШИНЫ

摘要

FIELD: mechanical engineering; turbomachines. ^ SUBSTANCE: proposed working blade of turbomachine is provided with main ribs made in inner space on pressure surface and suctions faces of blade between which coplanar intersecting channels are arranged. Additional ribs are made on bottoms of channels arranged at least on blade pressure surface, height and width of additional ribs are less than those of main ribs. Additional ribs are made with variable pitch t/h where t is pitch of additional ribs and h is height of additional ribs. Invention is aimed at distribution of intensity of heat exchange according to law of distribution of intensity of heat flow from gas in blade over its perimeter and height. ^ EFFECT: increased intensification of heat exchange in channels between main ribs by breaking boundary layer of air flow on bottom of said channels. ^ 2 cl, 5 dwg