Feeder duct assembly with flexible end fittings
AssigneeUnison Industries, LLC
InventorsDattu G V JONNALAGADDA, Greedaran Kubendran JANKIN, Bruce Patrick GRAHAM, Rachamadugu SIVAPRASAD, Douglas MILLWARD
Life of this patent
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Abstract
A feeder duct assembly for a gas turbine engine, which negates the need for a ball or axial joint in the duct for required for flexibility under thermal loading. The feeder duct assembly of the present innovation comprises an end fitting designed to meet flexibility requirements without compromising dynamic performance of the system with added weight from ball or axial joints in the ducts.
Claims20
A feeder duct assembly for a gas turbine engine comprising:
- an end fitting defining a fluid inlet to the gas turbine engine;
- a feeder duct fluidly coupled to the fluid inlet;
- a seal fluidly sealing the feeder duct to the end fitting;
- and
- a dynamic mount securing the feeder duct to the end fitting.
The feeder duct assembly according to claim 12, wherein the seal comprises a circumferential flange encircling the feeder duct with an inner circumferential channel, with a circumferential diaphragm located within the circumferential channel.
A feeder duct assembly comprising:
- an end fitting having an interface flange;
- a feeder duct having a terminal end and a circumferential flange spaced from the terminal end;
- an intermediate flange with a circumferential seal encircling the feeder duct and located between the interface flange and the circumferential flange;
- at least one pair of biasing elements sandwiching a portion of the circumferential flange;
- and
- a fastener securing the circumferential flange and intermediate flange to the end fitting and compressing the pair of biasing elements.
A method of securing a feeder duct to an end fitting of a gas turbine engine, the method comprising:
- mounting, flexibly, a terminal end of the feeder duct to the end fitting;
- and
- fluidly sealing the terminal end of the feeder duct to the end fitting.
Dependencies are inferred from the claim text.