GAS TURBINE COMBUSTION CHAMBER Russian patent published in 2022 - IPC F02C7/18 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the design of the combustion chamber of a gas turbine and, in particular, relates to a technology that is effectively used in the design of the end frame of the transition compartment, and in more detail to the cooling openings of the transition compartment. The combustion chamber of a gas turbine contains a transition compartment that directs the combustion gas from the combustion chamber to the turbine, the end frame of the transition compartment, which is installed on the section of the outlet of the transition compartment on the turbine side and is placed opposite the end wall of the stator blade of the first stage of the turbine with a given gap, and a sealing element worn on the end frame of the transition compartment and inserted into the end wall of the stator blade of the first stage to seal against leakage of cooling air supplied to the gap, moreover, the cooling holes are placed in the end frame of the transition compartment so that cooling air is supplied directly to the end wall of the stator blade of the first stage. The cooling holes are positioned so that cooling air is supplied directly to the inclined section of the end wall of the stator blade of the first stage from the inner circumference.

EFFECT: invention reduces NOx emissions and increases cooling of the end frame of the transition compartment and the end wall of the stator blade of the first stage.

14 cl, 15 dwg