Aerodynamic combustor liner design for emissions reductions

US11747019B1 · kind B1 · utility

Assignee

• General Electric Company · US

Inventors

• Hiranya Nath · Bengaluru, IN
• Ravindra Shankar Ganiger · Kanchinakote, IN
• Michael A. Benjamin · Cincinnati, US
• Steven C. Vise · Loveland, US
• Perumallu Vukanti · Bengaluru, IN
• Sripathi Mohan · Bengaluru, IN
• Rimple Rangrej · Bengaluru, IN

Key dates

• Filing date: Sep 2, 2022
• Grant date: Sep 5, 2023
• Expiry date: Sep 2, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23R2900/03043
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A combustor liner has an annular outer liner and an annular inner liner that define a combustion chamber therebetween, the combustion chamber having a dilution zone. The annular outer liner and the annular inner liner each has a converging-diverging section extending into the dilution zone of the combustion chamber that form a throat between them. Each of the converging-diverging sections includes at least one dilution opening defined through the respective converging-diverging section at the throat for providing a flow of an oxidizer through a respective liner to the dilution zone of the combustion chamber.