COMBUSTION CHAMBER OF A GAS TURBINE Russian patent published in 2021 - IPC F23R3/16 

FIELD: gas turbine building.

SUBSTANCE: combustion chamber of a gas turbine includes a combustion sleeve forming a cavity of the combustion chamber for developing combustion gas, a combustion casing placed on the outer circumferential side of the combustion sleeve, and a burner for supplying the air passing between the combustion sleeve and the combustion casing and the fuel supplied from the fuel supply system to the combustion chamber cavity, wherein the combustion chamber of the gas turbine comprises: a blade placed on the outer circumferential side of the combustion sleeve; multiple brackets placed on the inner side of the combustion casing and intended for attachment of the blade; and a pressure dynamics damping hole formed in the combustion sleeve in the position corresponding to the blade for communication with the cavity of the combustion chamber. The gaps formed between the outer circumferential surface of the combustion sleeve and the inner circumferential surface of the blade are made differing in the circumferential direction of the combustion sleeve. The gap formed between the outer circumferential surface of the combustion sleeve and the inner circumferential surface of the blade on one side of the bracket differs from the gap formed between the outer circumferential surface of the combustion sleeve and the inner circumferential surface of the blade on the opposite side of the bracket.

EFFECT: invention provides a possibility to reduce NO_X emissions, pressure fluctuations caused by combustion fluctuations, ensure mechanical reliability.

7 cl, 6 dwg