INLET RADIAL-AXIAL BRANCH PIPE OF GAS-TURBINE PLANT Russian patent published in 1995 - IPC

FIELD: gas-turbine engineering. SUBSTANCE: curved passageway 6 is defined by casing 4 and outer contour 5 and is plugged from the side of outlet part 2. Contour 5 is provided with lateral rows of uniformly arranged openings. The diameter and distance between the openings increase from inlet part 1 to outlet part 2. The combustion products is fed to the branch pipe from the combustion chamber and then to the turbine. The secondary air is injected in the flow of combustion products at the intermediate part 3 of the branch pipe from passage 6 through openings made in contour 5. Being mixed with the combustion products, the secondary air defines radial temperature field at the turbine inlet. EFFECT: enhanced efficiency. 2 cl, 2 dwg