Skip to Content
Find More Like This
Return to Search

Recessed impingement insert metering plate for gas turbine nozzles

United States Patent

July 9, 2002
View the Complete Patent at the US Patent & Trademark Office
An impingement insert sleeve is provided that is adapted to be disposed in a coolant cavity defined through a stator vane. The insert has a generally open inlet end and first and second diametrically opposed, perforated side walls. A metering plate having at least one opening defined therethrough for coolant flow is mounted to the side walls to generally transverse a longitudinal axis of the insert, and is disposed downstream from said inlet end. The metering plate improves flow distribution while reducing ballooning stresses within the insert and allowing for a more flexible insert attachment.
Itzel; Gary Michael (Greenville, SC), Burdgick; Steven Sebastian (Schenectady, NY)
09/ 681,738
May 30, 2001
FEDERAL RESEARCH STATEMENT 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.