RADIAL FLAP GAS-DYNAMIC BEARING Russian patent published in 2020 - IPC F16C32/06 F16C27/02 

FIELD: bearings.

SUBSTANCE: invention relates to machine parts, namely to designs of radial gas-dynamic bearings intended for use, in particular, in high-speed rotor systems, for example, compressors, turbines, electric generators. Radial flap gas-dynamic bearing consists of cylindrical housing (1) including inner support surface (2) and at least two L-shaped grooves (3) configured to fit tabs (3) of flanging (4) of tabs (5) bearing. Lobes (5) of bearing include working section (9) including input and output edges (12 and 11) and interacting with rotor journal (6). Elastic damping section (10) of lug (5) consists of elastic beams (7) interconnected by bridges (8). Between working (9) and elastically damping (10) sections and between the resilient damper section (10) and flanging (4) of each lug (5) there are holes (15, 14). Lobes (5) of bearing are installed inside housing (1) so that resilient damping section (10) of one lobe (5) is located between working section (9) of other lug (5) and internal support surface (2). Diameter of internal support surface (2) is selected so that radial gap h is provided between elastically damping section (10) of each lug (5) and internal support surface (2). Width of L-shaped grooves (3) is made such that flanging (4) of lug (5) with clearance h₁ is installed in them, wherein gap h₁ is greater than or equal to gap h.

EFFECT: technical result is increasing damping capacity, as well as maximum use of working surface of bearing to provide load-carrying capacity, including for bearings of small dimension (less than 20 mm).

7 cl, 7 dwg