Invention Application
- Patent Title: BLADE OUTER AIR SEAL SURFACE
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Application No.: US15830450Application Date: 2017-12-04
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Publication No.: US20180085880A1Publication Date: 2018-03-29
- Inventor: Paul M. Lutjen , Patrick D. Couture
- Applicant: United Technologies Corporation
- Main IPC: B24B1/00
- IPC: B24B1/00 ; B24B19/26 ; F01D11/12

Abstract:
A blade outer air seal for a gas turbine engine having a surface that is eccentric with respect to the engine rotation centerline, and a method for creating same, are disclosed. Also, a method for grinding a work piece having nominal curvature defined by a work piece curvature centerline is disclosed, comprising the steps of: a) determining a desired surface profile for the work piece; b) providing a rotating grinding surface having a grinding rotation centerline; c) offsetting the grinding rotation centerline from the work piece curvature centerline; and d) applying the rotating grinding surface to the work piece while rotating the rotating grinding surface about the grinding rotation centerline to create the desired surface profile.
Public/Granted literature
- US10702964B2 Blade outer air seal surface Public/Granted day:2020-07-07
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