US 12,078,357 B2
Rotating detonation-enabled augmentor systems
Eric J. Ruggiero, West Chester, OH (US); and Aaron J. Glaser, Cincinnati, OH (US)
Assigned to General Electric Company, Cincinnati, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Dec. 9, 2022, as Appl. No. 18/078,889.
Prior Publication US 2024/0191876 A1, Jun. 13, 2024
Int. Cl. F23R 7/00 (2006.01); F02C 5/02 (2006.01)
CPC F23R 7/00 (2013.01) [F02C 5/02 (2013.01); F05D 2240/35 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An engine comprising:
a core section; and
an exhaust system positioned downstream of the core section, the exhaust system having an exhaust system core, a peripheral wall surrounding the exhaust system core and an augmentor, the augmentor comprising:
a detonation chamber disposed within at least a portion of the exhaust system core and defined by a portion of the peripheral wall of the exhaust system;
a channel formed in the portion of the peripheral wall defining the detonation chamber, the peripheral wall including a backward-facing step having an opening extending therethrough, a body coupled to the backward-facing step along a border of the opening and disposed upstream of the opening, the body defining a pilot inlet path that delivers a pilot air-fuel mixture through the opening to the detonation chamber, the pilot inlet path in fluid communication with the detonation chamber and a fan of the engine, the pilot inlet path including a fuel delivery orifice upstream of the opening;
a core inlet path in fluid communication with the detonation chamber and a turbine of the engine, wherein the core inlet path delivers a core air-fuel mixture to the detonation chamber; and
wherein the core air-fuel mixture reacts in the detonation chamber along a midline of the detonation chamber, and wherein a portion of the pilot air-fuel mixture reacts in the channel to create a rotating detonation wave.