GAS TURBINE ENGINE REDUCER Russian patent published in 2009 - IPC F02C7/36 

FIELD: engines and pumps.

SUBSTANCE: gas-turbine engine reducer comprises drive gear installed on input shaft and engaged to fixed intermediate gears, which, in their turn, are engaged to driven gear of internal engagement installed on output shaft of reducer. Intermediate gears are made as double and comprising gears with larger and smaller external diameter of toothing. Larger gear is engaged with drive gear and driven gear of internal engagement, which is installed on external output shaft of reducer. Gear with smaller diameter installed closer to output from reducer is engaged with driven gear of external engagement, which is installed on internal output shaft of reducer. Drive and driven gears are telescopically fixed on shafts with the possibility of self-adjustment on intermediate gears. Intermediate gears are installed in reducer gear on roller bearing on the input side and ball bearing on the output side. At that number of double intermediate gears makes from 3 to 5, and ratio of larger intermediate gear toothing width along pitch circle to width of internal engagement driven gear toothing along pitch circle makes from 1.5 to 3.

EFFECT: higher reliability of reducer.

1 dwg