US 11,739,935 B1
Dome structure providing a dome-deflector cavity with counter-swirled airflow
Adam Kahn, Mason, OH (US); Nayan Patel, Liberty Township, OH (US); Dhanashegaran Shanmugam, Mason, OH (US); and Anil Raju, Mason, OH (US)
Assigned to GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Mar. 23, 2022, as Appl. No. 17/656,123.
Int. Cl. F23R 3/04 (2006.01); F23R 3/12 (2006.01); F23R 3/28 (2006.01); F23R 3/14 (2006.01)
CPC F23R 3/12 (2013.01) [F23R 3/04 (2013.01); F23R 3/14 (2013.01); F23R 3/283 (2013.01); F23R 2900/03041 (2013.01); F23R 2900/03042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dome-deflector structure for a combustor of a gas turbine, the dome-deflector structure comprising:
a dome portion having a dome-side swirler opening therethrough; and
a deflector portion having a deflector-side swirler opening therethrough, the dome portion and the deflector portion being connected together to form a dome-deflector cavity therebetween,
wherein the dome portion includes a plurality of dome-side cooling airflow passages therethrough arranged in a plurality of groups of dome-side cooling airflow passages including a first group of dome-side cooling airflow passages arranged to provide a flow of air therethrough in a first swirl direction, a second group of dome-side cooling airflow passages arranged to provide a flow of air therethrough in a second swirl direction different from the first swirl direction, and a third group of dome-side cooling airflow passages arranged to provide a flow of air therethrough in a third swirl direction opposite the second swirl direction.