FIELD: engines and pumps.
SUBSTANCE: radial ring flange of turbine rotor or stator element comprises alternating ledges and recesses with bottom areas made at inner or outer peripheral part. Ledges have bores for fastening bolts. Recessed part bottom area to prevent inadequate joint at said inner or outer peripheral part is arranged radially inside or outside with respect to circle centred at flange centre and tangent inside or outside relative to ledge bores. Both parts with recesses arranged on their both sides feature concave bottom located radially inside or outside relative to, in fact flat bottoms of other recessed parts. Other inventions of this set relate to low-pressure turbine including abode described flange and to gas turbine engine with such turbine.
EFFECT: higher reliability of ring flange.
9 cl, 5 dwg
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