초록 ▼

A combustor for a gas turbine engine operates with low nitrous oxide emissions during engine operations. The combustor includes a center mixer assembly and a second mixer assembly radially outward from the center mixer assembly. The center mixer assembly includes a pilot fuel injector, a swirler, an

A combustor for a gas turbine engine operates with low nitrous oxide emissions during engine operations. The combustor includes a center mixer assembly and a second mixer assembly radially outward from the center mixer assembly. The center mixer assembly includes a pilot fuel injector, a swirler, and an air splitter, and the second mixer assembly includes a plurality of mixers that include a swirler, an atomizer, and a venturi. A combustor fuel delivery system includes a pilot fuel circuit to supply fuel to the center mixer assembly and a main fuel circuit to supply fuel to the second mixer assembly.

대표청구항 ▼

1. A method for reducing an amount of emissions from a gas turbine combustor using a mixer assembly, the mixer assembly including a center mixer and a plurality of second mixers, the center mixer radially inward from the plurality of second mixers and including an air splitter, each of the second mi

1. A method for reducing an amount of emissions from a gas turbine combustor using a mixer assembly, the mixer assembly including a center mixer and a plurality of second mixers, the center mixer radially inward from the plurality of second mixers and including an air splitter, each of the second mixers including an atomizer, a swirler, and a venturi, the swirler upstream from the venturi, the swirler radially outward from the atomizer, said method comprising the steps of:injecting fuel into the combustor using a fuel system that includes at least two fuel stages; and directing airflow into the combustor such that a portion of the airflow passes through the center mixer air assembly and a portion of the airflow passes through the second mixers.