Patent ID: 11946644
Assignee: SOLAR TURBINES INCORPORATED
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 17:
18. A gas turbine engine comprising:
a compressor;
a combustor downstream from the compressor, wherein the combustor comprises a plurality of fuel injectors, wherein each of the plurality of fuel injectors comprises a plurality of multi-pot swirl injectors, and wherein each multi-pot swirl injector comprises:
at least one channel defining a flow path for gas from an inlet to an outlet, wherein the at least one channel comprises a central path between the inlet and a chamber that includes the outlet, wherein the central path defines an unswirled flow path that connects axially to the chamber;
an axial swirler between the inlet and the chamber, wherein the axial swirler encircles the central path and defines a swirled flow path that connects axially to the chamber;
a plurality of premix jets configured to inject fuel into the flow path at a position closer to the inlet than to the outlet, wherein the plurality of premix jets is configured to be supplied with a first fuel having less than 70% hydrogen by volume, and
a plurality of micromix jets configured to inject fuel into the flow path at a position closer to the outlet than to the inlet to produce a plurality of diffusion flames during operation of the gas turbine engine wherein the plurality of micromix jets is configured to be supplied with a second fuel having greater than 50% hydrogen by volume,
wherein the multi-pot swirl injector is configured to:
in a premix mode, supply the first fuel to the premix jets, such that the first fuel is injected into the flow path via the plurality of premix jets, while not supplying fuel to the plurality of micromix jets, and
in a micromix mode, supply the second fuel to the micromix jets, such that the second fuel is injected into the flow path via the plurality of micromix jets, while not supplying fuel to the plurality of premix jets; and

a turbine downstream from the combustor.