FIELD: engines and pumps.
SUBSTANCE: proposed case comprises outer ring, inner ring and intermediate ring arranged there between. Inner and intermediate rings are provided with cooling air passages. Interturbine case comprises, at least, one sealing device arranged between outer and intermediate ring with plate and peripheral skirt. Sealing device plate is provided with, at least, one cooling air passage while peripheral skirt may elastically contract and expand. Note also that said plate rests on outer ring while peripheral skirt rests on intermediate ring. Invention covers also gas turbine engine comprising above described interturbine case.
EFFECT: reduced cooling air leaks.
12 cl, 6 dwg
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