Wheelspace windage cover plate for turbine

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874966

Lathrop, Norman Douglas ^[1]

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1. Ballston Lake, NY

Windage cover plates are secured between the wheels and spacer of a turbine rotor to prevent hot flow path gas ingestion into the wheelspace cavities. Each cover plate includes a linear, axially extending body curved circumferentially with a radially outwardly directed wall at one axial end. The wall defines a axially opening recess for receiving a dovetail lug. The cover plate includes an axially extending tongue received in a circumferential groove of the spacer. The cover plate is secured with the tongue in the groove and dovetail lug in the recess. Lap joints between circumferentially adjacent cover plates are provided.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6499945
• OSTI ID: 874966
• Country of Publication: United States
• Language: English

Related Subjects

wheelspace
windage
cover
plate
turbine
plates
secured
wheels
spacer
rotor
prevent
hot
flow
path
gas
ingestion
cavities
linear
axially
extending
curved
circumferentially
radially
outwardly
directed
wall
axial
defines
recess
receiving
dovetail
lug
tongue
received
circumferential
groove
lap
joints
adjacent
provided
flow path
axially extending
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