GAS TURBINE ENGINE ROTOR SUPPORT Russian patent published in 2020 - IPC F02C7/06 F16C33/76 

FIELD: machine building.

SUBSTANCE: invention relates to aircraft engine building, namely to bearing supports of rotors of gas turbine engines. Task of reducing the heat flow to the support of the gas turbine engine rotor with the circulating lubrication system is solved by a support comprising a roller bearing with outer 1 and inner 2 rings, between which there are rollers 3. Outer race 1 of roller bearing is fitted in support housing 4 while inner ring is mounted on gas turbine engine rotor shaft 5. Rollers 3 contact their cylindrical surface with open tread 6 on inner surface of outer ring 1 and tread 7 with end guide boards 8 on outer side of inner ring 2. In inner ring 2 next to boards 8 grooves 9 are made, in which there are installed split sealing graphite rings 10, contacting with open tread 6 on inner side of outer ring 1 and ends 11 of grooves 9 of inner ring, and forming oil cavity 12 with outer surface of inner ring 2 and open tread 6 on inner side of outer ring. In the junction of tread 7 with the end guide beads 8 there are grooves 13 with oil supply openings 14. For removal of oil from compact oil cavity 12 of bearing in inner ring 2 there are radial holes 15.

EFFECT: reduction of heat flow to gas turbine engine rotor support.

1 cl, 1 dwg