Recessed impingement insert metering plate for gas turbine nozzles

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874565

Itzel, Gary Michael ^[1]; Burdgick, Steven Sebastian ^[2]

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1. 218 Quail Ridge Dr., Greenville, SC 29680
2. 7006 Kevin La., Schenectady, NY 12303

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.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: Itzel; Gary Michael (218 Quail Ridge Dr., Greenville, SC 29680); Burdgick; Steven Sebastian (7006 Kevin La., Schenectady, NY 12303)
• Patent Number(s): US 6416275
• OSTI ID: 874565
• Country of Publication: United States
• Language: English

Related Subjects

recessed
impingement
insert
metering
plate
gas
turbine
nozzles
sleeve
provided
adapted
disposed
coolant
cavity
defined
stator
vane
inlet
diametrically
opposed
perforated
walls
therethrough
flow
mounted
transverse
longitudinal
axis
downstream
improves
distribution
reducing
ballooning
stresses
allowing
flexible
attachment
gas turbine
longitudinal axis
coolant flow
turbine nozzle
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