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US 8,128,007 B2Granted
Radially outward flowing air-blast fuel injector for gas turbine engine
AssigneeDelavan Inc.
InventorsNeal A. Thomson, Philip E. O. Buelow, David H. Bretz
Life of this patent
Estimating the term…
Abstract
An air-blast fuel injector is disclosed which includes an outer air circuit having an exit portion, an inner air circuit having an outlet configured to direct air toward the exit portion of the outer air circuit, and a fuel circuit radially outboard of the inner air circuit and having an exit communicating with the outer air circuit upstream from the exit portion of the outer air circuit.
Claims7
An air-blast fuel injector comprising:
- a) an outer air circuit having an exit portion;
- b) an inner air circuit having an outlet configured to direct air toward the exit portion of the outer air circuit;
- c) a fuel circuit radially outboard of the inner air circuit and having an exit located in the outer air circuit upstream from the exit portion of the outer air circuit, wherein the exit of the fuel circuit is configured to direct fuel radially outward into the outer air circuit;
- d) an intermediate air swirler radially inboard of the inner air circuit;
- and
- e) a pilot fuel delivery system radially inboard of the intermediate air swirler.
3 more elements
An air-blast fuel injector comprising:
- a) an outer air circuit having an exit portion;
- b) an inner air circuit having a diverging outlet configured to direct air toward the exit portion of the outer air circuit;
- c) a fuel circuit radially outboard of the inner air circuit and having an exit located in the outer air circuit upstream from the exit portion of the outer air circuit, wherein a pre-filming surface extends downstream from the exit of the fuel circuit to a terminal lip at the outlet of the inner air circuit, and the exit of the fuel circuit is configured to direct fuel radially outward into the outer air circuit;
- d) an intermediate air swirler radially inboard of the inner air circuit;
- and
- e) a pilot fuel delivery system radially inboard of the intermediate air swirler.
3 more elements
Dependencies are inferred from the claim text.