FIELD: machine building.
SUBSTANCE: high-temperature gas turbine has first stage split ring and perforated sealing band enveloping split ring sectors. Holes of aforesaid band have circular shoulders directed towards cooled surfaces of split ring sectors and located, primarily, at the sealing band front section. Cooled surface of split ring sectors are furnished with pins-turbulators arranged between circular shoulders and staying in contact with the band. Said pins-turbulators alternate with holes in axial and circumferential directions.
EFFECT: higher reliability.
2 dwg
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