Conformal seal and vane bow wave cooling

US11041391B2 · kind B2 · utility

Assignee

• RAYTHEON TECHNOLOGIES CORPORATION · US

Inventors

• Steven D. Porter · Wethersfield, US
• Shawn M. McMahon · Manchester, US
• Kevin Zacchera · Glastonbury, US
• Noah Wadsworth · Stratford, US
• Christopher Whitfield · Manchester, US
• Sean D. Bradshaw · White Plains, US
• Dennis M. Moura · South Windsor, US
• David Bitzko · West Palm Beach, US
• Alex J. Schneider · South Glastonbury, US

Key dates

• Filing date: Apr 20, 2020
• Grant date: Jun 22, 2021
• Expiry date: Apr 20, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A gas turbine engine includes a combustor. A turbine section is in fluid communication with the combustor. The turbine section includes a first vane stage aft of the combustor. A plurality of vane cooling passages extending through a forward flange of the first vane stage to the radial inner surface for communicating cooling airflow into the core flow path forward of the leading edge. A seal assembly is disposed between the combustor and the forward flange of the vane stage. The seal includes a plurality of circumferentially spaced apart slots and a plurality of seal cooling passages that extend from the radially outer surface to the radially inner surface at each of the plurality of circumferentially spaced apart slots.