US 11,655,979 B2
Airblast fuel nozzle
Luther Wirtz, Mentor, OH (US); Jeffrey Lehtinen, Concord Township, OH (US); Adel Mansour, Mentor, OH (US); David Tibbs, Summerville, SC (US); Robert Pelletier, Chardon, OH (US); and Jon Stockill, Rugeley (GB)
Assigned to Parker-Hannifin Corporation, Cleveland, OH (US)
Filed by Parker-Hannifin Corporation, Cleveland, OH (US)
Filed on Jun. 15, 2022, as Appl. No. 17/841,210.
Application 17/147,078 is a division of application No. 15/959,362, filed on Apr. 23, 2018, granted, now 10,955,138.
Application 17/841,210 is a continuation of application No. 17/147,078, filed on Jan. 12, 2021, granted, now 11,391,463.
Claims priority of provisional application 62/489,523, filed on Apr. 25, 2017.
Prior Publication US 2023/0071579 A1, Mar. 9, 2023
Int. Cl. F23R 3/14 (2006.01); F23R 3/12 (2006.01); F23R 3/28 (2006.01)
CPC F23R 3/12 (2013.01) [F23R 3/14 (2013.01); F23R 3/28 (2013.01); F23R 2900/00005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fuel nozzle for a gas turbine engine, the fuel nozzle comprising:
a fuel swirler including a fuel swirler body having an inlet section configured to receive fuel, an outlet section configured to dispense swirled fuel, and at least one fuel flow passage extending from the inlet section to the outlet section that is configured to transport fuel; and
an outer air swirler including an outer air swirler body arranged radially outwardly of the fuel swirler body, the outer air swirler body having a plurality of air swirler vanes that at least partially form respective air flow passages configured to pass and swirl air that interacts with dispensed fuel from the fuel swirler;
wherein the fuel swirler body and the outer air swirler body are additively manufactured together to form a unitary body;
wherein the unitary body includes a radially outer annular wall and a radially inner annular wall that each extend in a longitudinal direction and are radially spaced apart from each other along at least a portion of the unitary body to form an annular gap therebetween; and
wherein the at least one fuel flow passage extends in the longitudinal direction from the inlet section to the outlet section and is completely enclosed by the radially inner annular wall of the unitary body along at least a portion thereof.