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US 5,331,815 AGranted
Impact resistant combustor
AssigneeGeneral Electric Company
InventorsJames N. Reinhold, Jr., Mark P. Hammerl, Scott D. Zimmerle
Life of this patent
Estimating the term…
Abstract
An impact resistant cowl structure for a gas turbine engine mounted in front of the combustor dome of the engine having a concave dish-like center for capturing incident debris which is bounded by a pair of forward protruding elbows that transition into outwardly and rearwardly extending mounting legs.
Claims8
A combustor dome assembly for a gas turbine engine, said combustor dome assembly being downstream of and receiving compressed air from a diffuser having an outlet of a specific area and radial height, comprising:
- (a) an annular dome plate having at least one circumferential row of spaced openings therethrough;
- (b) a fuel cup assembly attached to each of said dome plate openings, said fuel cup assembly including a venturi, a sleeve, a splash plate, a primary swirler and a secondary swirler;
- (c) a one-piece cowl connected to the radially inner and outer ends of said dome plate, said cowl including a central portion concave with respect to said fuel cup assembly which is centered upstream of an substantially in line with said fuel cup assembly, said concave central portion also being centered downstream of and substantially in line with said diffuser outlet;
- and
- (d) a pair of upstream protruding elbow portions bounding said concave central portion, wherein said elbow portions transition into leg portions which flare radially outward in the downstream direction;
- wherein said concave central portion has a radial height at least as great as said diffuser radial height in order to capture substantially all debris flowing through said diffuser outlet into said combustor dome assembly.
3 more elements
Dependencies are inferred from the claim text.