METHOD OF MOUNTING GAS TURBINE ENGINE ROTOR Russian patent published in 2016 - IPC F01D19/00 

FIELD: machine building.

SUBSTANCE: invention relates to rotary turbine machines and can be used in assembly of their rotors, including in high-speed gas-turbine engines, wherein the critical frequency of rotors rotation are in operating speed range. For implementation of the method of gas turbine engine rotor assembly the rotor shaft is installed by means of rolling bearings with possibility of rotation in supports, at that, the rotor shaft assembly on the support that defines excitation of the rotor resonance, the roller bearing with oval running track of the inner ring installed on the rotor shaft is used, at that, the minor axis of its running track coincides with direction of displacement of the rotor mass center. Herewith, the oval parameters of the running track of bearing ring are set, at which rotor resonance at critical speed is ruled out.

EFFECT: technical result of the invention is increase in engine operation efficiency by increasing its reliability and service life due to damping of rotor oscillations at critical speed.

1 cl, 1 dwg