ROTOR FOR MULTI-STAGE AXIAL COMPRESSOR Russian patent published in 1995 - IPC

FIELD: aircraft engine engineering. SUBSTANCE: rotor has front 1 and rear 2 short shafts with journals set in bearings 3,4 of supports 5,6 of the housing. The supports are provided with force conical flanges 12,13,14,18. Drum unit 7 of disks 8 of the front stages are secured between the flanges. The disks 15,16,17,19 of the rear stages are secured to conical flanges 12,13,14,15 of rear shaft 2. Intermediate rotor rings are interposed between the disks. The conical flange of rear shaft 2 is composed and its first upstream part 12 is made in block with the last disk of the drum unit. Middle part 13 is interposed between disks positioned downstream of part 12. Last part 14 is made in block with rear shaft 2. Disks 15,16 of rear stages are rigidly secured between parts 12,13,14 of the flange and define a closed box design together with disk 19 and part 18 of the flange. EFFECT: improved design. 2 dwg