TURBINE DAWN FOR USE IN GAS TURBINE ENGINES, AND METHOD OF MANUFACTURING THE SAME

摘要

The turbine blade comprises a dovetail (72), connected to a rotor assembly (28) disposed in a turbine casing (40), a platform (68) extending from the dovetail , and a blade (64) extending from the platform. The blade has a foot end (88) and a top end (90). The blade further comprises a crown fairing (66), extending from the crown end and having a fairing plate, a first fairing rail, extending over a first radial distance from the airfoil plate. fairing, in the direction of the turbine casing, and a second fairing rail extending a second radial distance from the fairing plate, towards the turbine casing, which distance is different from the first radial distance.