GAS TURBINE ENGINE AIRFOIL TRAILING EDGE PASSAGE AND CORE FOR MAKING SAME

摘要

An airfoil has a body that includes leading and trailing edges that adjoin pressure and suction sides to provide an exterior airfoil surface. A cooling passage extends in a radial direction from a root to a tip. A trailing edge cooling passage interconnects the cooling passage to the trailing edge. The trailing edge cooling passage includes first and second pedestals of different sizes that are arranged in a repeating pattern with respect to pedestals of the same size and with respect to pedestals of different sizes.

主权项

1. An airfoil comprising:
a body including leading and trailing edges adjoining pressure and suction sides to provide an exterior airfoil surface, a cooling passage extending in a radial direction from a root to a tip, and a trailing edge cooling passage interconnecting the cooling passage to the trailing edge, the trailing edge cooling passage including first and second pedestals of different sizes and arranged in a repeating pattern with respect to pedestals of the same size and with respect to pedestals of different sizes.