UNLOADING HYDRAULIC DEVICE Russian patent published in 2020 - IPC F16C27/00 F02C7/06 F16C33/66 F16C19/02 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used in designs of gas turbine engines (GTE), in particular, in structures of supports, in which it is required to reduce axial load on radial, radial-thrust or thrust bearings. Unloading hydraulic device comprises housing with axial stop (1), at that housing with axial stop (1) is located in housing of support (2) containing bearing, and trunnion (5) of rotor (6) is equipped with thrust ledge (7). Between walls of axial stop (1) and thrust ledge (7) of trunnion (5) there is a working hydraulic cavity of increased pressure, which provides control of axial force directed to opposite side of axial force acting on rotor (6). At the same time working hydraulic cavity is equipped with seals (9) and can be located outside of bearing housing (2) containing bearing.

EFFECT: simplified design of the support and increased reliability due to reduction and regulation of axial loads coming to the bearings from the rotor to ensure their operability and reduction of axial vibrations from the rotor.

3 cl, 1 dwg