GAS TURBINE ENGINE SEALING DEVICE Russian patent published in 2001 - IPC

FIELD: mechanical engineering; gas turbine engines. SUBSTANCE: sealing device of gas turbine engine has labyrinth and mating flange and deflector forming slot space. According to invention, many support projections are made on deflector frame side of slot space. Size of mounting radial clearances between support projections of deflector and flange is set within 0 and 5δ₁ where δ₁ is radial clearance between labyrinth and mating flange. Radial walls of flange from side of compressor rotor are heat-insulated. Invention is aimed at increasing reliability by preventing cutting-in of labyrinth into flange and increasing engine economy by maintaining minimum radial clearances between labyrinth and mating flange of sealing device at operation of gas turbine engine. EFFECT: improved reliability and reduced fuel consumption. 2 cl, 4 dwg