Abstract
A blade outer air seal assembly includes a plurality of seal segments circumferentially disposed about an array of blades rotatable about an axis, each of the plurality of seal segments having a radially inner surface facing a tip of each blade of the array of blades, the radially inner surface having an arrangement of trenches formed therein, and a radially outer surface opposite the radially inner surface. The arrangement of trenches is disposed between 30% and 80% of a chord of a blade of the array of blades as taken at the respective tip, and the arrangement of trenches is aperiodic in the axial direction.
Document Type
Patent
Status
Issued
Issue Date
8-12-2025
Patent Number
US 12385408 [ ] ; US 12385408B1
CPC Classification
F 01 D 11/122
Application number
18/424109
Assignees
RTX Corporation
Filing Date
1-26-2024
Recommended Citation
Praisner, T. J., Farris, J. R., & Wiese, C. (2025). Life and Performance Improvement Trenches (United States Patent No. US12385408B1). https://scholar.afit.edu/patents/114