Blade outer air seal surface
US10702964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2017 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Feb 28, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49982
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.