FIELD: turbine manufacture; turbine wheels of gas-turbine engines.
SUBSTANCE: turbine wheel has slotted disk, cooled moving blades with ledges and toothed roots installed in disk slots, and plate-type locks mounted in annular drillings of disk and ledges of moving blades. Turbine wheel is provided with inserts disposed either side of roots with their side surfaces abutting against butt-end of disk, as well as to toothed roots and plate-type locks. Toothed roots have lugs level with lower tooth and mating slots are made in inserts.
EFFECT: enhanced cooling efficiency of wheel blades due to reduced cooling air leakage.
3 cl, 2 dwg
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