US 2019/0056112 A1 · DYNAMICS-MITIGATING ADAPTER FOR BUNDLED TUBE FUEL NOZZLE

Abstract

A combustor having bundled tube fuel nozzles is provided, at least one of the fuel nozzles having a dynamics-mitigating adapter removably coupled thereto. The adapter includes a mounting body defining at least one flow passage aligned with an inlet of at least one tube of the at least one fuel nozzle. The at least one flow passage extends an axial length of the at least one tube. The adapter may include extenders aligned with each tube of the fuel nozzle, and the extenders may have identical or different lengths. Adapters may be used for each fuel nozzle of the combustor. The mounting body may be a monolithic unit through which the flow passages are defined or may include a plurality of extenders affixed to and extending upstream of the mounting body.

Claims20

Dependent claims

A bundled tube fuel nozzle comprising:

an upstream plate, a downstream plate, and a housing extending between the upstream plate and the downstream plate, such that a fuel plenum is defined at least partially by the upstream plate, the downstream plate, and the housing;
a plurality of tubes extending in parallel between the upstream plate and the downstream plate, each tube of the plurality of tubes having an inlet defined through the upstream plate, an outlet defined through the downstream plate, and at least one fuel injection port defined through the tube in fluid communication with the fuel plenum;
and
an adapter removably coupled to the upstream plate, the adapter comprising:
a mounting body defining at least one flow passage aligned with the inlet of at least one tube to extend an axial length of the at least one tube of the plurality of tubes.

2 more elements

Dependencies are inferred from the claim text.

Dynamics-mitigating adapter for bundled tube fuel nozzle

Life of this patent

Dynamics-mitigating adapter for bundled tube fuel nozzle

Life of this patent

Abstract

Claims20