US 12,449,127 B2
Burner control system
Brendan Kemp, Biggin Hill (GB); Duncan Ward, Biggin Hill (GB); and Stuart Williams, Biggin Hill (GB)
Assigned to Autoflame Engineering Limited, Biggin Hill (GB)
Filed by Autoflame Engineering Limited, Biggin Hill (GB)
Filed on Nov. 22, 2022, as Appl. No. 17/992,086.
Claims priority of application No. 2116952 (GB), filed on Nov. 24, 2021.
Prior Publication US 2023/0160572 A1, May 25, 2023
Int. Cl. F23N 5/00 (2006.01)
CPC F23N 5/006 (2013.01) [F23N 2229/04 (2020.01); F23N 2900/05001 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A burner control system for controlling the operation of a fuel burner arranged to burn a combination of a supply of fuel and a supply of air, wherein the burner control system is arranged to:
receive from an exhaust gas analyzer one or more signals, each of the one or more signals being indicative of a level of an exhaust gas emitted by the fuel burner;
receive from a photodetector a signal indicative of a level of electromagnetic radiation output by a flame of the fuel burner, wherein the signal received from the photodetector is a single value indicative of a total level of electromagnetic radiation output by the flame;
determine a level of oxygen emitted by the fuel burner from the signal received from the photodetector; and
control at least one of the supply of fuel and the supply of air to the fuel burner based on the one or more signals received from the exhaust gas analyzer and the signal received from the photodetector.