GAS-TURBINE ENGINE DRIVE SHAFT DEVICE, GAS-TURBINE ENGINE AND AIRCRAFT Russian patent published in 2017 - IPC F02C7/32 F01D25/16 

FIELD: engines and pumps.

SUBSTANCE: gas-turbine engine drive shaft device contains a drive shaft, a round body, a round rim, surrounding the body, a hollow radial support and shaft supporting bearing, installed between the input shaft and the collar. The radial support connects housing with the rim and intersects with the drive shaft, extending into the housing. The radial support is connected to the housing and made as a single part with it. The radial support contains the boss, provided with a channel. The boss and the collar are connected by engaging with one another. The drive shaft extends through the boss and the collar. The gasket provides the tight seal between the collar and the boss, and the bearing is installed in the collar. There is the oil channel in the drive shaft, at that the drilled holes intersects the shaft from the oil channel upto the bearing. The other inventions of the group relate to the gas-turbine engine, containing the above mentioned device, as well as to the aircraft with this engine.

EFFECT: group of inventions allows to manufacture separately the radial support and housing, and to increase the accuracy of the bearing installation.

12 cl, 10 dwg