Fuel nozzle assembly and gas turbine combustor including the same

A gas turbine combustor comprising:

• a combustion chamber, and
• a fuel nozzle assembly mounted to the combustion chamber,
• wherein the fuel nozzle assembly comprises:
• an end plate coupled to one end of an annular casing;
• and
• a fuel nozzle configured such that one end thereof is supported by the end plate and the other end thereof extends outward, compressed air being supplied to the fuel nozzle through an inflow channel in the casing,
• wherein the fuel nozzle comprises a center fuel nozzle located at a center thereof and a plurality of side fuel nozzles arranged annularly to surround the center fuel nozzle,
• the side fuel nozzle comprises a nozzle body located at a center thereof, a shroud spaced outward from the nozzle body and defining a flow path therebetween, and a plurality of swirlers located between the nozzle body and the shroud,
• each of the swirlers comprises a leading edge directed toward the end plate and a trailing edge located opposite the leading edge, and
• in each of the side fuel nozzles, distances between the leading edges are different from each other.

A gas turbine comprising:

• a compressor configured to compress air externally introduced;
• a combustor configured to mix fuel with the compressed air and to combust a mixture thereof;
• and
• a turbine configured to generate power with combustion gas supplied from the combustor,
• wherein the combustor comprises:
• a combustion chamber, and
• a fuel nozzle assembly mounted to the combustion chamber,
• wherein the fuel nozzle assembly comprises:
• an end plate coupled to one end of an annular casing;
• and
• a fuel nozzle configured such that one end thereof is supported by the end plate and the other end thereof extends outward, compressed air being supplied to the fuel nozzle through an inflow channel in the casing,
• wherein the fuel nozzle comprises a center fuel nozzle located at a center thereof and a plurality of side fuel nozzles arranged annularly to surround the center fuel nozzle,
• the side fuel nozzle comprises a nozzle body located at a center thereof, a shroud spaced outward from the nozzle body and defining a flow path therebetween, and a plurality of swirlers located between the nozzle body and the shroud,
• each of the swirlers comprises a leading edge directed toward the end plate and a trailing edge located opposite the leading edge, and
• in each of the side fuel nozzles, distances between the leading edges are different from each other.