RESILIENT DAMPING SUPPORT OF TURBOMACHINE ROTOR Russian patent published in 2017 - IPC F01D25/16 F01D25/00 

FIELD: engines and pumps.

SUBSTANCE: resilient damping support of turbomachine rotor contains a radial roller bearing mounted on the shaft, a stator element rigidly fixed on the outer ring of the bearing, a body forming with the stator element a damping cavity within which an elastic ring is located, and also a graphite seal and a secondary labyrinth seal comprising a cover labyrinth seals. Elastic damping support contains a locking cover installed on the stator element; when the elastic ring is enshrined with the possibility of bias in damping cavity together with the bearing body, graphite seal and labyrinth cover in radial and axial directions within allowable clearances and limited with the fixing cover from the axial displacement on one side and the stator element on the other side. The outer ring of the bearing, the elastic ring, the graphite seal and the labyrinth seal cover are rigidly mounted on the bearing body.

EFFECT: invention enables to reduce the gap between stator and rotor parts, which results in reducing losses in labyrinth seals.

2 cl, 1 dwg