ROTOR OF TWO-STAGE TURBINE Russian patent published in 2000 - IPC

FIELD: mechanical engineering; turbines. SUBSTANCE: rotor of two stage turbine has shaft, working disks of first and second stages with cooled blades, and heat screen installed between working disks. Heat screen is made in form of two intermediate disks, each provided with rim, hub and plate with axial channels and holes. Large number of radial rectangular spline projections is made on hubs of intermediate disks. Projections are fitted in spline rectangular slots of centering flanges made under hubs. Clearance is left between projections and slots. EFFECT: improved reliability owing to provision of centering of intermediate disks relative to main disks at all operating conditions of engine. 2 cl, 5 dwg