HOT GAS PATH COMPONENT FOR A GAS TURBINE WITH BUILT-IN HEAT EXCHANGER

A hot gas path component for a gas turbine engine includes: a tubular wall structure (13), having an inner shell (15), an outer shell (16) and a plurality of ribs (17), the ribs (17) connecting the inner shell (15) and the outer shell (16) to each other; a plurality of cooling channels (18) extending through the tubular wall structure (13) between the inner shell (15) and the outer shell (16) and defined by respective pairs of adjacent ribs (17); a heat exchanger (20) configured to circulate a heat exchange fluid (QC) through the inner shell (15), to direct the heat exchange fluid (QC) to the outer shell (16) from the inner shell (15) through at least some of the ribs (17) and to circulate the heat exchange fluid (QC) through the outer shell (16).