FIELD: machine building.
SUBSTANCE: nozzle diaphragm comprises blade sections jointed together by their shrouds, dispersion section composed of recess on shroud inner side confined by buried front wall and wall extending in shroud body inclined from front wall along gas flow direction to shroud surface, and channels to feed air in gas direction connected with front wall. Said recess represents a slot made on side of buried front wall and shaped to triangular prism located in blade channel. Air feed channels in buried front wall represent a slot extending over slot width.
EFFECT: higher efficiency of nozzle cooling.
2 dwg
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