ROTARY MACHINE MAGNETIC BEARING ASSEMBLY AND TURBOMACHINE THEREWITH Russian patent published in 2018 - IPC F16C32/04 F16C37/00 F16C39/06 

FIELD: machine building.

SUBSTANCE: invention relates to bearings, in particular to magnetic bearings used in rotary machines having a rotor. Magnetic bearing assembly for the rotary machine has winding (17) of the rotor and magnetic winding (18, 44) of the stator fixed to fixed support element (26, 2) having at least one element made of ferromagnetic material (22, 48), and at least one coil (20, 46), both elements are mounted in protective annular body (24, 50), leaving rotational surface (22a, 48a) of said ferromagnetic element (22, 48) exposed. Rotation surface (20a, 46a) of said one coil (20, 46) faces rotational surface (16d, 16e, 12b) of rotor winding (17). Bearing assembly (10, 40) comprises at least one row of blades (30, 32, 56, 58) fixed to rotor winding (17). Winding (17) of the rotor has annular abutment (6) comprising axial portion (16a) fixed to rotor shaft (12) and radial portion (16) extending radially in magnetic winding (18) of the stator. Radial portion (16b) faces exposed surfaces (20a, 22a) of ferromagnetic member (22) and one coil (20). Number of blades (30, 32) are fixed to annular abutment (16) and extend radially from annular abutment (16) towards magnetic winding (18) of the stator.

EFFECT: creation of a magnetic bearing assembly that has an intense cooling flow, the arrangement of the rows of blades ensures the flow of the fluid, improving the cooling of the active magnetic bearing, thus, it is possible to internally vent the magnetic bearing.

11 cl, 3 dwg