PETAL GASOSTATIC BEARING AND METHOD OF MANUFACTURING PETAL GASOSTATIC BEARING Russian patent published in 2019 - IPC F16C32/06 

FIELD: machine building.

SUBSTANCE: invention relates to machine parts, in particular to designs of radial and thrust gas-static bearings for use, in particular, in high-speed rotor systems, for example compressors, turbines, electric generators. Petal gas-static bearing includes cylindrical body (1), on which inlet channels (2) are formed. Tangential grooves (6) are made in housing (1), into which working lobes (4) of the bearing and springs (5) of secondary rigidity are inserted from inner bearing surface (7), in which elastic beams are made, made with the possibility of providing elastic preload of the working lobes (4) of the bearing to the shaft. Elastic beams (10) are installed in the gap between working lobe (4) of the bearing and housing (1). Inlet channels (2) are made elastic and terminate in chambers in which at least one hole of the primary choke is made, which is configured to provide gas from an external source from the chambers to the pockets. Pockets are located above the holes in working petals (4), these holes in working petals (4) form at least three chambers, and the edges of the pockets are pressed against the inner surfaces of working lobes (4) due to the elastic forces of inlet channel (2) provided by the structural tension. Elastic beams of springs (5) of secondary stiffness are absent at the points of abutment of the pockets edges to the inner surfaces of working lobes (4). Method for manufacturing a petal gas-static bearing is also disclosed.

EFFECT: technical result: implementation of the gas-static operation of the bearing, reduction of wear, as well as an increase in pressure in the zone of reduced pressure of the hydrodynamic lubrication plot.

20 cl, 12 dwg