Patent ID: 6652268
Filing Date: 2003-11-25
Classification: F23D

Abstract:
A burner assembly comprising:(a) a housing having an air inlet and a burner end; (b) an impeller mounted in the housing and in communication with the air inlet, which impeller is adapted for directing air towards the burner end of the housing; (c) an inner air tube that is mounted in the burner end of the housing so as to define an inner combustion zone and an outer combustion zone; (d) a fixed inner air spin vane that is mounted on the inner air tube so as to direct some of the air from the impeller into the inner combustion zone; (e) an inner gas injection nozzle mounted on the inner air tube so as to direct gaseous fuel into the inner combustion zone; (f) a first castellated ring that is mounted around the periphery of the inner air tube; (g) a fixed outer air spin vane that is mounted in the burner end of the housing so as to direct some of the air from the impeller into the outer combustion zone; (h) a plurality of outer gas injection nozzles that are mounted in the burner end of the housing so as to direct gaseous fuel into the outer combustion zone; (i) a second castellated ring that is mounted around the periphery of the burner end of the housing; (j) a plurality of radiation plates that are mounted in the burner end of the housing adjacent to the outer combustion zone; (k) an igniter that is mounted in the burner end of the housing.