GAS-TURBINE ENGINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering; turbines. SUBSTANCE: proposed gas-turbine engine contains compressor, combustion chamber, low-pressure turbine and high-pressure turbine. Rotor of high-pressure turbine is connected with compressor rotor by shaft-to-shaft joint and is cantilever-mounted on radial roller bearing. Inner race of radial bearing is secured on shaft by nut. Ratio of outer diameter of nut to outer diameter of inner race of roller bearing is 0.9-1.0. Nut is provided with communicating end face and inclined slots. Ratio of diameter of roller of roller bearing to width of end face slots is 1.3-2.5. Bottom of inclined slots is made to radius whose ratio to radius of roller is 0.5-0.9. EFFECT: improved reliability of gas-turbine engine by excluding damage to roller bearing when assembling the engine. 5 cl, 6 dwg