초록

A turbine blade is designed to avoid having to machine a part of the last blade assembled in a row in order to make a fit. The location of the root pivot center was carefully selected to be located in vertical proximity to a leading edge of the platform.

대표청구항 ▼

A turbine blade comprising: an airfoil portion having an inlet face, a trailing edge, a convex surface, a concave surface and a lower end; a platform portion having an inlet face and being formed at the lower end of the airfoil portion; a root portion extending downwardly from the platform portion a

A turbine blade comprising: an airfoil portion having an inlet face, a trailing edge, a convex surface, a concave surface and a lower end; a platform portion having an inlet face and being formed at the lower end of the airfoil portion; a root portion extending downwardly from the platform portion and having a root center line, a root pivot center and a root center line radius; wherein the root pivot center is located in proximity to a plane encompassing the inlet face of the platform portion; wherein relative to an x－x and y－y axis, the location of the root pivot center is defined by a ratio of distance from the y－y axis to the distance from the x－x axis, wherein the ratio is approximately 0.36.