SEALING RIDGE, ASSEMBLY OF TURBINE BLADES, AND GAS TURBINE CONTAINING SUCH BLADE ASSEMBLY Russian patent published in 2013 - IPC F01D11/00 F16J15/08 

FIELD: machine building.

SUBSTANCE: sealing ridge of the gas turbine blade assembly includes a straight section and a curved section; at that, width of the curved section is less than width of the straight section. Curved section includes two bent sections and two straight sections. An angle between straight section and straight section of the curved section and/or between two straight sections of the curved section is 60° to 90°. The other invention of the group refers to a gas turbine blade assembly containing a disc, fixing plates and curved sealing ridges made as above. Each blade is attached to the disc and has a body, a root and a flange between the body and the root. Between flanges of adjacent blades there are gaps, and between sections of roots of adjacent blades there are cavities of the root. Blades are fixed in axial direction on the disc with fixing plates. Sealing ridges are installed in gaps between flanges of adjacent blades and project in axial direction beyond the blade root and the fixing plate. One more invention refers to a gas turbine containing the above described blade assembly.

EFFECT: inventions allow improving reliability of a blade assembly and simplifying its fit-up.

13 cl, 8 dwg