TURBINE STATOR Russian patent published in 2014 - IPC F01D25/24 

FIELD: machine building.

SUBSTANCE: turbine stator comprises an outer case and fairings of bearing assembly spokes fixed by bolt connections in the outer case. The outer radial ribs of the bearing assembly spoke fairings are fixed in axial direction in relation to the outer case by a locking ring with U-shaped cross-section. The radial circumferential rib of the locking ring being the first as per the gas flow is installed in the annular groove of the outer case. The rear radial circumferential rib of the locking ring is installed with radial gap in respect to the outer axial circumferential rib of the outer case and is provided with recesses. The relation of maximal locking ring height in cross-section to the value of the radial gap between the rear circumferential rib of the locking ring and the axial circumferential rib of the outer case accounts for 10-100. The relation of maximal locking ring height in cross-section to the axial width of the locking ring accounts for 0.5-2.

EFFECT: higher reliability of a turbine stator.

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