Flamesheet combustor

US6935116B2 · kind B2 · utility

Assignee

• Power Systems Mfg., LLC · US

Inventors

• Peter Stuttaford · North Palm Beach, US
• Stephen Jennings · Stuart, US
• Andrew Green · Galveston, US
• Ryan McMahon · North Palm Beach, US
• Yan Chen · North Palm Beach, US
• Hany Rizkalla · Stuart, US
• John Carella · North Palm Beach, US
• Vamsi Duraibabu · North Palm Beach, US
• Martin Spalding · North Palm Beach, US

Key dates

• Filing date: Apr 28, 2003
• Grant date: Aug 30, 2005
• Expiry date: May 29, 2023

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23R3/286
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A gas turbine combustion system having reduced emissions and improved flame stability at multiple load conditions is disclosed. The improved combustion system accomplishes this through complete premixing, a plurality of fuel injector locations, combustor geometry, and precise three dimensional staging between fuel injectors. Axial, radial, and circumferential fuel staging is utilized including fuel injection proximate air swirlers. Furthermore, strong recirculation zones are established proximate the introduction of fuel and air premixture from different stages to the combustion zone. The combination of the strong recirculation zones, efficient premixing, and staged fuel flow thereby provide the opportunity to produce low emissions combustion at various load conditions.