AIRFOIL AND METHOD FOR MANUFACTURING AN AIRFOIL

摘要

An airfoil includes a pressure side, a suction side opposed to the pressure side, a cavity inside the airfoil between the pressure and suction sides, and a trailing edge downstream from the cavity between the pressure and suction sides. A first set of cooling passages through the trailing edge provide fluid communication from the cavity through the trailing edge. A first divider across each cooling passage in the first set of cooling passages extends from the pressure side to the suction side at the trailing edge.

主权项

1. An airfoil, comprising:
a pressure side, a suction side opposed to the pressure side, a leading edge and a trailing edge; and a plurality of cooling passages defined along the trailing edge of the airfoil between a root portion of the airfoil and a tip portion of the airfoil; wherein the plurality of cooling passages comprises a first set of cooling passages subdivided into a top set of cooling passages defined proximate to the tip portion, a bottom set of cooling passages defined proximate to the root portion; wherein the airfoil further comprises a second set of cooling passages defined between the top set of cooling passages and the bottom set of cooling passages; wherein a first radial distance defined between a first pair of radially spaced walls defining a top cooling passage of the top set of cooling passages is greater than a second radial distance defined between a second pair of radially spaced walls defining a middle cooling passage of the second set of cooling passages; wherein a third radial distance defined between a third pair of radially spaced walls defining a bottom cooling passage of the bottom set of cooling passages is greater than the second radial distance defined between the pair of radially spaced walls defining the middle cooling passage of the second set of cooling passages; and wherein at least one of the top cooling passage and the bottom cooling passage includes a plurality of pins that extends from the pressure side to the suction side.