GAS TURBINE ENGINE WITH AUXILIARY EQUIPMENT UNIT GEARING DRIVE, AND METHOD OF MOUNTING SAID ENGINE Russian patent published in 2013 - IPC F02C7/36 

FIELD: engines and pumps.

SUBSTANCE: two-shaft has turbine engine comprises low- and high-pressure rotors running in bearings supported by intermediate case, auxiliary equipment unit, and drive. Said drive actuates radial and axial shafts to transmit rotary motion to auxiliary equipment unit. Said drive comprises high- and low-pressure drive gears. High-pressure drive gear actuates one of radial transfer shafts and is engaged with high-pressure rotor. Low-pressure drive gear is aligned with low-pressure rotor and engaged therewith to drive another radial transfer shaft. Low-pressure driven gear comprises front radial part, system of teeth, and cylindrical rear part supporting axial positioning bearing fitted there outside. In mounting said engine, high-pressure rotor and pro-module are mounted jointly with radial transfer shafts in protective casing rigidly coupled with engine intermediate casing. Axial positioning bearing is rigidly coupled with protective casing. Low-pressure drive gear is arranged coaxially and from inside relative to axial positioning bearing to adjust gear axial position jointly with pto-mechanism transfer gear. Low-pressure drive gear position is locked axially relative to positioning bearing. Low-pressure drive gear is retained axially by positioning bearing. Low-pressure rotor is fitted in place to allow interaction between low-pressure drive gear power transfer grooves and those of said shaft.

EFFECT: simplified mounting.

10 cl, 4 dwg