US 12,276,424 B1
Fuel nozzle having inner and outer mixing chambers fed with fuel via first and second hole patterns
Joshua J. Weaver, Yorktown, IN (US); Curtis L. Taylor, Paradise Valley, AZ (US); Edward Lovett, Parker City, IN (US); and Bradley M. Wright, Hartford City, IN (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Oct. 7, 2023, as Appl. No. 18/377,776.
Int. Cl. F23R 3/28 (2006.01); F23R 3/14 (2006.01); F23R 3/34 (2006.01)
CPC F23R 3/286 (2013.01) [F23R 3/14 (2013.01); F23R 3/343 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A fuel nozzle, comprising:
a plurality of chambers located in the fuel nozzle, wherein the plurality of chambers includes an inner mixing chamber and an outer mixing chamber, wherein the inner mixing chamber and the outer mixing chamber each accept air and fuel separately and combine the air and the fuel to form a mixture of the air and the fuel;
a first hole pattern and a second hole pattern formed in the fuel nozzle, wherein the fuel enters the inner mixing chamber through the first hole pattern and enters the outer mixing chamber through the second hole pattern; and
an angled discharge included with the inner mixing chamber, wherein the angled discharge slows an exit velocity of the mixture of the air and the fuel prior to exiting the fuel nozzle through a discharge end of the fuel nozzle, wherein the plurality of chambers together with the first hole pattern and the second hole pattern and the angled discharge facilitates stabilization of a flame at two distinct points downstream of the fuel nozzle depending on a rate of a flow of the fuel and the air; and
wherein the fuel enters the fuel nozzle through a fuel inlet and proceeds to the inner mixing chamber where the fuel is distributed to the inner mixing chamber and outer mixing chamber simultaneously.