ROTOR SHAFT BEARING OF LOW-PRESSURE COMPRESSOR OF TURBOJET ENGINE (VERSIONS), CASING OF ROTOR SHAFT REAR BEARING, ROTOR SHAFT COMPONENT, POLYFUNCTIONAL EXTERNAL TIGHTENING COMPONENT OF ROTOR SHAFT, CONNECTION COMPONENT OF ROTOR SHAFT, CASING OF BEARING OF ROTOR SHAFT REAR BEARING Russian patent published in 2017 - IPC B01J3/00 F04D29/32 F01D5/06 

FIELD: engines and pumps.

SUBSTANCE: group of inventions refers to the area of production and operation of gas turbine engines. The rotor shaft bearing of the low-pressure compressor is located in an intermediate casing of the engine and contains a ball bearing, which is performed thrust and radial, dividing the shaft bearing to stator and rotor parts. The stator part from its internal part is performed conjointly to the external ring of the ball bearing, and on its external perimeter, the stator part is secured in the intermediate casing of the engine and equipped with cover supports of labyrinth seals. The rotor part contains a trunnion of a drum-disk constituent of the rotor shaft detachably connected to a cylinder constituent of the rotor shaft, by means of which the rotor part is rested on the internal ring of the ball bearing, as well as contains the polyfunctional external tightening component in the form of a circular cylindrical nut and a connection component in the form of a hollow screw. The rotor and stator parts of the shaft bearing are in the oil medium common to them both.

EFFECT: group of inventions allows adapting the low-pressure compressor as a part of the engine to more sensitive mode of external air current supply, as well as to intense operation in stationary conditions of ground functioning.

20 cl, 7 dwg