BLADE EQUIPPED WITH COOLING SYSTEM, CORRESPONDING GUIDING NOZZLE UNIT AND GAS TURBINE ENGINE Russian patent published in 2020 - IPC F01D5/18 F01D9/02 

FIELD: machine building.

SUBSTANCE: blade of the guide gas turbine engine nozzle assembly is equipped with a cooling system comprising an insert and a bleed device. Insert is located inside the inner cavity of the blade, is connected to the input of the cooling air of the blade and is made with possibility of cooling the surface of the inner cavity of the blade. Bleeder is configured to withdraw a portion of the cooling air inside the insert and can be directed towards the central hub of the gas turbine engine. Proposed device comprises also bleed head and bleed tube. Bleed head is located in the internal cavity of the blade, passes through the hole of the insert and is designed so that to enable removal of part of cooling air inside the insert. Bleed pipe is connected, on one side, with the blade through the first ball joint and is made with possibility of connection, on the other side, with the central hub of the gas turbine engine through the second ball coupling, and also it is made with possibility to direct part of bleed air coming from the bleeding head, to hub of gas turbine engine.

EFFECT: invention is aimed at reduction of cooling air leaks.

5 cl, 3 dwg