Patent ID: 9631808
Date: 2017-04-25
CPC Classifications: F23C,F23D,F23M,F24H

Claim:
1. A gaseous fuel-air-flue gas burner, comprising: a housing having a combustion chamber therein; a combustion area in which a combination of fuel, air, and flue gas mix to form a flame within the combustion chamber; a flame arrester having an outer surface for the flame to form, wherein the combustion area forms on the outer surface of the flame arrester; a supply chamber configured to receive the fuel, air, and flue gas mixture at an inlet, and provide the combustion area with the fuel, air, and flue gas mixture at an outlet to produce a flame and a quantity of return flue gas, wherein the supply chamber is surrounded by the flame arrester; and a return cavity configured to move return flue gas away from the combustion area and into the inlet of the supply chamber, wherein the return cavity is surrounded by the supply chamber.