초록 ▼

A gas turbine engine nozzle segment includes at least two circumferentially adjacent vanes joined together along an interface between the vanes. Each of the vanes includes a hollow airfoil disposed between radially inner and outer band panels and a cooling air intake duct leading to a hollow interio

A gas turbine engine nozzle segment includes at least two circumferentially adjacent vanes joined together along an interface between the vanes. Each of the vanes includes a hollow airfoil disposed between radially inner and outer band panels and a cooling air intake duct leading to a hollow interior of the airfoil for directing cooling air into the hollow interior. The intake duct has a duct wall protruding radially outward from the outer band panel and at least one impingement cooling hole disposed through the intake duct wall and circumferentially and radially inwardly angled. A flange portion extends circumferentially along the outer band panel and an opening in the flange portion is in fluid communication with the intake duct. The hollow airfoil, radially inner and outer band panels, intake duct wall, and flange portion are integrally formed and, preferably, integrally cast such that the vane is a single piece integrally cast vane.

대표청구항 ▼

[ What is claimed is:] [1.]1. A gas turbine engine vane comprising:a hollow airfoil disposed between radially inner and outer band panels;a cooling air intake duct leading to a hollow interior of said airfoil, said intake duct having a duct wall protruding radially outward from said outer band panel

[ What is claimed is:] [1.]1. A gas turbine engine vane comprising:a hollow airfoil disposed between radially inner and outer band panels;a cooling air intake duct leading to a hollow interior of said airfoil, said intake duct having a duct wall protruding radially outward from said outer band panel; andat least one cooling air impingement means disposed through said intake duct wall for directing cooling air to impinge on said outer panel with a circumferentially and radially inwardly angled velocity.