Reverse flow combustor duct attachment

US8864492B2 · kind B2 · utility

Assignees

• UNITED TECHNOLOGIES CORPORATION · US
• PRATT & WHITNEY CANADA CORP. · CA

Inventors

• Jun Shi · Carmel, US
• David C. Jarmon · Kensington, US
• Lee A. Hoffman · Vernon, US
• David J. Bombara · 3a Avenida SO, US
• Shaoluo L. Butler · Manchester, US
• Lev Alexander Prociw · Elmira, CA
• Aleksandar Kojovic · Oakville, CA

Key dates

• Filing date: Jun 23, 2011
• Grant date: Oct 21, 2014
• Expiry date: May 25, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23R3/60
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A reverse flow combustor has an inlet end. A flowpath extends downstream from the inlet end through a turn. The turn directs the flowpath radially inward and reversing an axial flow direction. A large exit duct (LED) is along the turn. A small exit duct (SED) is along the turn and joined by a joint to a mounting structure to resist separation in a first axial direction. The joint comprises: a first surface on the SED facing partially radially inward; and a mounting feature engaging the first surface.