TURBINE COOLING CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a turbine cooling circuit 32 including a passage sleeve 34 having the rear end 36 adjacent to a rim 30a of a turbine disc 30. SOLUTION: Seal rotors 38 and 42 are separately arranged from the rear end, and are adjacent to a row of an inlet hole 40. An inducer 46 has an outlet 50 arranged on the radial directional outside of a sleeve inlet hole. Seal stators 52 and 54 surround the seal rotors, and form a rotary seal arranged on the radial directional inside of an inducer outlet.