FIELD: engines and pumps.
SUBSTANCE: gas turbine engine includes double-row propeller fan, gas generator and differential speed reduction device containing drive wheel, carrier and internal gear. Differential speed reduction device and double-row propeller fan is located in series after gas generator; at that, front and rear wheels of propeller fan have the possibility of mutual axial movement. Front wheel of propeller fan is installed on shaft of internal gear and rear wheel is installed on the shaft of carrier. Carrier and internal gear have similar radial-thrust bearings installed in front of carrier and after internal gear respectively on external cylindrical projections. Shaft of rear wheel of propeller fan is installed in carrier shaft with possibility of being fixed through inner cavity of shaft-spring of drive wheel.
EFFECT: invention allows improving reliability of gas turbine engine.
3 dwg
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