Inter stage seal housing having a replaceable wear strip
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United States of America Patent
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Apr 28, 2020
Grant Date -
Jan 16, 2014
app pub date -
Sep 16, 2013
filing date -
Aug 20, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
An inter stage seal housing for a turbine engine having upper and lower half inter stage seal housings in which a contact sealing surface of the seal housing is restored after an interval of engine operation. The contact sealing surface is restored by fitting a replaceable wear strip on the downstream sealing surface of the seal housing. In order to fit the replaceable wear strip, a circumferential groove is machined along an outer peripheral edge of the seal housing. The groove is machined to include axial location and radial retention such that the wear strips can be slid into the upper half and lower half inter stage seal housing circumferentially from the horizontal joint. The groove includes through holes and the wear strips include corresponding threaded holes such that the wear strips can be fastened in the groove by fasteners and fastener retention hardware.
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