Skip to Content
Find More Like This
Return to Search

Nozzle airfoil having movable nozzle ribs

United States Patent

May 14, 2002
View the Complete Patent at the US Patent & Trademark Office
A nozzle vane or airfoil structure is provided in which the nozzle ribs are connected to the side walls of the vane or airfoil in such a way that the ribs provide the requisite mechanical support between the concave side and convex side of the airfoil but are not locked in the radial direction of the assembly, longitudinally of the airfoil. The ribs may be bi-cast onto a preformed airfoil side wall structure or fastened to the airfoil by an interlocking slide connection and/or welding. By attaching the nozzle ribs to the nozzle airfoil metal in such a way that allows play longitudinally of the airfoil, the temperature difference induced radial thermal stresses at the nozzle airfoil/rib joint area are reduced while maintaining proper mechanical support of the nozzle side walls.
Yu; Yufeng Phillip (Greenville, SC), Itzel; Gary Michael (Greenville, SC)
General Electric Company (Schenectady, NY)
09/ 898,470
July 5, 2001
This invention was made with Government support under Contract No. DE-FC21-95MC31176 awarded by the Department of Energy. The Government has certain rights in this invention.