Patent ID: 11891949
Assignee: GE INFRASTRUCTURE TECHNOLOGY LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A system, comprising:
a gas turbine, comprising:
a turbine shaft disposed along a rotational axis;
a turbine casing disposed circumferentially about the turbine shaft;
a combustion gas path disposed between the turbine shaft and the turbine casing;
a turbine stage disposed in the combustion gas path, wherein the turbine stage comprises a plurality of turbine vanes disposed upstream from a plurality of turbine blades; and
an isothermal expansion system coupled to the turbine stage, wherein the isothermal expansion system comprises a plurality of multi-fluid injectors configured to vary axial positions of combustion within a turbine stage expansion of the turbine stage to reduce temperature variations over the turbine stage expansion, wherein at least one multi-fluid injector of the plurality of multi-fluid injectors is coupled to each of the plurality of turbine vanes, wherein each of the plurality of multi-fluid injectors comprises a fuel port configured to inject a fuel, an oxidant port configured to inject an oxidant, and a barrier fluid port configured to inject a barrier fluid between the fuel and the oxidant, wherein the barrier fluid is configured to delay mixing between the fuel and the oxidant.