Cooled component wall in a turbine engine

摘要

A component wall in a turbine engine includes a substrate, a diffusion section, and at least one cooling passage. The diffusion section is located in a surface of the substrate and is defined by a first sidewall and a second sidewall. The cooling passage(s) include an outlet portion through which cooling air exits in a direction toward the first sidewall. The outlet portion includes a rear section, a front section, and an inner wall having proximal and distal ends. The rear section is located between the first and second sidewalls. The front section extends between the first sidewall and the distal end of the inner wall. The first sidewall extends into the outlet portion of the cooling passage(s) to the inner wall and extends from the first lateral wall to the second lateral wall so as to block the front section of the outlet portion.

主权项

1. A component wall in a turbine engine comprising:
a substrate having a first surface and a second surface opposed from said first surface; a diffusion section located in said second surface, said diffusion section comprising a trench defined by a first sidewall and a second sidewall spaced from said first sidewall, said first and second sidewalls extending radially outwardly to said second surface, and said first sidewall comprises a continuous sidewall extending in a plane along a length of said trench; a plurality of cooling passages, each cooling passage comprising a throat portion extending through said substrate and an outlet portion through which cooling air exits in a direction toward said first sidewall, said outlet portion of each cooling passage comprising:
an inner wall defining an inner surface of said outlet portion, said inner wall having a proximal end located adjacent to said throat portion and a distal end;a rear section between said first and second sidewalls;a front section extending between said first sidewall and said distal end of said inner wall;a first lateral wall extending radially outwardly from said inner wall and extending from said rear section to said front section; anda second lateral wall opposed from said first lateral wall, said second lateral wall extending radially outwardly from said inner wall and extending from said rear section to said front section; and wherein said first sidewall extends into said outlet portion of each cooling passage to said inner wall and extends from said first lateral wall to said second lateral wall so as to block said front section of said outlet portion.