SEALING ASSEMBLY OF TURBINE OF GAS TURBINE ENGINE Russian patent published in 2021 - IPC F01D11/00 

FIELD: engines.

SUBSTANCE: invention relates to the field of gas turbine engine building, namely to structures of seals between adjacent parts in form of nozzle blade shrouds and/or rotor blade shrouds and/or above-rotor spacers. In the sealing assembly of the turbine of a gas turbine engine, containing a seal installed in a common groove formed by identical grooves made on the ends of adjacent parts, wherein the end sections of the common groove are made inclined to the middle part thereof, according to the present invention, for adjacent parts in form of nozzle blade shrouds and/or rotor blade shrouds and/or above-rotor spacers, the seal is installed in the groove and consists of two sealing elements located sequentially in the common groove, wherein each of the elements is made of two strips of the same width, installed along the common groove, one on top of the other, with contact along at least part of the largest surfaces thereof, and rigidly interconnected, wherein the strips located at the same level are displaced in the longitudinal direction relative to the strips located at another level forming contact platforms in the middle part of the common groove, wherein the strips are in contact along said platforms during operation of the turbine with a possibility of longitudinal displacement thereof relative to each other.

EFFECT: reduction of air leaks between adjacent parts of the turbine of the GTE.

2 cl, 7 dwg