Transition duct assembly

US8322146B2 · kind B2 · utility

Assignee

• ALSTOM Technology Ltd · CH

Inventors

• Hany Rizkalla · Stuart, US
• Stephen W. Jorgensen · Stuart, US
• Peter Stuttaford · North Palm Beach, US
• Plazi Ricklin · Altadena, US
• David John Henriquez · Hobe Sound, US

Key dates

• Filing date: Aug 22, 2008
• Grant date: Dec 4, 2012
• Expiry date: Jan 25, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2260/96
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A transition duct assembly with a thermally free aft frame and mounting system for use in a gas turbine engine are disclosed. The aft frame is capable of adjusting to thermal gradients while the mounting system provides for at least transverse movement of the transition duct during engine assembly. The mounting system also provides a means for raising the natural frequency of the transition duct outside of the engine's dynamic excitation ranges.