Invention Grant
- Patent Title: Method of repairing knife edge seals
- Patent Title (中): 刀刃密封修复方法
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Application No.: US11811701Application Date: 2007-06-12
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Publication No.: US08205335B2Publication Date: 2012-06-26
- Inventor: William M. Rose , Robert A. Charbonneau
- Applicant: William M. Rose , Robert A. Charbonneau
- Applicant Address: US CT Hartford
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Hartford
- Agency: Kinney & Lange, P.A.
- Main IPC: B23P6/00
- IPC: B23P6/00 ; F01D25/24

Abstract:
A method of repairing a gas turbine knife edge seal assembly in which assembly is included a used honeycomb ring seal and a knife edge. The method includes removing the used honeycomb ring seal, removing material from the knife edge to a first knife edge radial height, installing a replacement honeycomb ring seal with a stock radial thickness, and removing material from the replacement honeycomb ring seal to a finished radial thickness for sealable engagement with the knife edge. The finished radial thickness of the replacement honeycomb ring seal establishes a first radial gap between an inner annular surface of the replacement honeycomb ring seal and the knife edge before the knife edge seal assembly begins rotating in the gas turbine.
Public/Granted literature
- US20090324395A1 Method of repairing knife edge seals Public/Granted day:2009-12-31
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