| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: gas-turbine engine fan (10) contains blades (16) put into grooves (23) made on rotor disk (12) circumferentially, and platforms (20) located between blades containing radial support brackets on corresponding brackets of disk (12), at that each platform (20) is fastened on disk (12) using one cotter pin (64) put into openings of platform (20) brackets and corresponding openings of disk (12) brackets. ^ EFFECT: essential reduction of mechanical stresses which influence root of blades during operation. ^ 10 cl, 4 dwg |
