Air-fuel micromix injector having multibank ports for adaptive cooling of high temperature combustor

Patent · 12 July 2022

OSTI ID:1924890

Coogan, Shane B.; Brun, Klaus

A method of using a combustor for high temperature combustion. The combustor is equipped with a showerhead type micromix air-fuel injector. The injector faceplate has its ports concentrically arranged into “banks”, to which delivery of fuel can be controlled on a bank-by-bank basis. During combustor operation, the temperature of the air into the combustor is monitored. If the temperature is above a predetermined threshold, fuel is delivered to fewer than all banks of ports. As a result, the bank(s) of ports to which fuel is not delivered inject only air into the combustion chamber, and the other bank(s) of ports inject the air-fuel mixture as usual.

• Research Organization: Southwest Research Inst., San Antonio, TX (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: EE0005805
• Assignee: Southwest Research Institute (San Antonio, TX)
• Patent Number(s): 11,384,939
• Application Number: 14/257,847
• OSTI ID: 1924890
• Country of Publication: United States
• Language: English