Additively controlled surface roughness for designed performance

US11904405B2 · kind B2 · utility

Assignee

• RTX CORPORATION · US

Inventors

• Vijay Narayan Jagdale · South Windsor, US
• Jesse R. Boyer · Middletown, US
• Om P. Sharma · South Windsor, US
• Evan Butcher · Suffield, US
• Lawrence A. Binek · Glastonbury, US
• Bryan G. Dods · Greer, US

Key dates

• Filing date: Feb 7, 2022
• Grant date: Feb 20, 2024
• Expiry date: Feb 7, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for additively controlled surface features of a gas turbine engine casing. The process comprises forming the casing having an inner surface and an outer surface opposite the inner surface; forming a surface feature on the casing proximate the inner surface, wherein the surface feature comprises a structure on the inner surface configured to align or misalign with respect to a flow direction of a working fluid in a flow path of the casing.