US 12,480,653 B2
Ultra-low NOx multi-port burner apparatus
Joshua J. Weaver, Yorktown, IN (US); Curtis Taylor, Paradise Valley, AZ (US); and Christopher S. Eldridge, Muncie, IN (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. 17/677,618.
Prior Publication US 2023/0266003 A1, Aug. 24, 2023
Int. Cl. F23D 14/02 (2006.01); F23D 14/62 (2006.01)
CPC F23D 14/02 (2013.01) [F23D 14/62 (2013.01); F23D 2900/14021 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A burner apparatus, comprising:
a burner housing; and
a plurality of fuel and air swirlers maintained by the burner housing, wherein the plurality of fuel and air swirlers is supplied by a common fuel and air source, wherein fuel and air are directed to at least one of the plurality of fuel and air swirlers at a time, and wherein each fuel and air swirler among the plurality of fuel and air swirlers mixes the fuel and the air, resulting in a combustible mixture of the fuel and the air downstream of the plurality of fuel and air swirlers, wherein the burner housing comprises a plurality of fuel inlets wherein a first fuel inlet among the plurality of fuel inlets leads to a first fuel vessel and contains a first path to enter a center core of the plurality of fuel and air swirlers, and wherein a second fuel inlet among the plurality of fuel inlets leads to a second vessel and contains a second path to enter an outer ring of the plurality of fuel and air swirlers.