ASYMMETRICAL BI-DIRECTIONAL THRUST BEARING WITH TWO ACTIVE SURFACES Russian patent published in 2018 - IPC F16C17/06 F01D25/16 

FIELD: machine engineering.

SUBSTANCE: bearing device (100) for supporting a shaft (103) of the gas turbine engine comprises a bearing housing element (104), a first bearing disc (110), which is mounted on the element (104), the first self-setting segments (111) which are configured for inclination one after the other along the peripheral direction on the first bearing disc (110), a second bearing disc (210) which is mounted on the element (104) at a distance from the first bearing disc (110) along the axial direction (102), the second self-adjusting segments (211) which are configured for inclination one after the other along the peripheral direction on the second bearing disc (210). The first segments (111) are arranged with respect to the first thrust ring (303) mounted on the shaft (103), so that the first axial load (301) can be transmitted from the first ring (303) on the first segments (111). The second segments (211) are positioned relative to the second thrust ring (304) mounted on the shaft (103), so that the second axial load (302) which is directed in the opposite direction with respect to the first axial load (301) can be transmitted from the second ring (304) to the second segments (211). The first amount of first segments (111) is greater than a half of the second amount of second segments (211), but less than the second amount of second segments (211).

EFFECT: providing the bearing for the short rotor shaft of the gas turbine, whereby the bearing can receive high axial load in both axial directions.

11 cl, 5 dwg