US 12,385,637 B2
Ultra-low NOx multi-port air staged burner apparatus
Joshua J. Weaver, Yorktown, IN (US); and Curtis L. Taylor, Paradise Valley, AZ (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Feb. 22, 2022, as Appl. No. 17/677,680.
Prior Publication US 2023/0266004 A1, Aug. 24, 2023
Int. Cl. F23D 14/24 (2006.01); F23C 7/00 (2006.01); F23N 1/02 (2006.01)
CPC F23D 14/24 (2013.01) [F23C 7/002 (2013.01); F23N 1/02 (2013.01); F23C 2201/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A burner apparatus, comprising:
a housing;
an array maintained by the housing and which functions according to an air staged mode of operation, the array comprising a plurality of low-capacity fuel swirlers and low-capacity air swirlers, wherein individual or groups of low-capacity fuel swirlers and/or low-capacity air swirlers among the array are turned on or off based on a required burner capacity; and
a common fuel source and a common air source are operable to supply fuel and air to at least one of the low-capacity fuel swirlers and the low-capacity air swirlers among the plurality of low-capacity fuel swirlers and low-capacity air swirlers, and wherein the fuel and air are mixed within each swirler to form a combustible mixture.