Airfoil with shaped trailing edge pedestals

Details Airfoil with shaped trailing edge pedestals Airfoil with shaped trailing edge pedestals

2007-02-13

2007-02-13

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

C416S09700R

Reexamination Certificate

active

10738842

ABSTRACT:
A blade for a gas turbine engine includes a trailing edge cooling chamber, wherein the pressure and suction sides are connected by an array of spaced pedestals. The pedestals in a region most subject to thermal stresses are formed to be elliptical, such that the thermal stresses are spread over a larger area. Thus, stress concentrations are reduced. Also, various sized cylindrical pedestals may be used at other locations.

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