Closed circuit steam cooled turbine shroud and method for steam cooling turbine shroud

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874445

Burdgick, Steven Sebastian ^[1]; Sexton, Brendan Francis ^[2]; Kellock, Iain Robertson ^[2]

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1. Schenectady, NY
2. Simpsonville, SC

A turbine shroud cooling cavity is partitioned to define a plurality of cooling chambers for sequentially receiving cooling steam and impingement cooling of the radially inner wall of the shoud. An impingement baffle is provided in each cooling chamber for receiving the cooling media from a cooling media inlet in the case of the first chamber or from the immediately upstream chamber in the case of the second through fourth chambers and includes a plurality of impingement holes for effecting the impingement cooling of the shroud inner wall.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6390769
• OSTI ID: 874445
• Country of Publication: United States
• Language: English

Related Subjects

closed
circuit
steam
cooled
turbine
shroud
method
cooling
cavity
partitioned
define
plurality
chambers
sequentially
receiving
impingement
radially
inner
wall
shoud
baffle
provided
chamber
media
inlet
immediately
upstream
fourth
holes
effecting
closed circuit
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