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US 12,680,497 B2Granted
Gaseous fuel and liquid water injection for turbine engine
AssigneeRtx Corporation
InventorsTimothy S. Snyder, Justin M. Locke, Wookyung Kim, Lance L. Smith
Life of this patent
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Abstract
A method of operation is provided during which a fuel-water mixture is directed within a first passage of a fuel injector to a first passage outlet of the fuel injector. The fuel-water mixture includes liquid water and gaseous fuel. The fuel-water mixture is injected into a combustion chamber through the first passage outlet. The combustion chamber is within a combustor of a turbine engine. A fuel-air mixture within the combustion chamber is ignited. The fuel-air mixture includes the gaseous fuel.
Claims13
A method of operation, comprising:
- directing a fuel-water mixture within a first passage of a fuel injector to a first passage outlet of the fuel injector, the fuel-water mixture including liquid water and gaseous fuel, wherein the gaseous fuel comprises hydrogen gas and methane gas, and a first ratio of quantities of the hydrogen gas to the methane gas is less than or equal to one;
- injecting the fuel-water mixture into a combustion chamber through the first passage outlet, the combustion chamber within a combustor of a turbine engine;
- directing additional liquid water within a second passage of the fuel injector to a second passage outlet of the fuel injector, wherein the second passage is fluidly discrete from the first passage, the additional liquid water and the liquid water of the fuel-water mixture are received from a common water source, and a second ratio of quantities of the liquid water within the fuel-water mixture to the additional liquid water is directly proportional to the first ratio;
- injecting the additional liquid water into the combustion chamber through the second passage outlet;
- and
- igniting a fuel-air mixture within the combustion chamber, the fuel-air mixture comprising the gaseous fuel.
3 more elements
A method of operation, comprising:
- injecting a fuel-water mixture out of a fuel injector and into a combustion chamber, the fuel-water mixture including liquid water and gaseous fuel, the gaseous fuel comprising hydrogen gas and methane gas, and the combustion chamber within a combustor of a turbine engine, wherein a first ratio of quantities of the hydrogen gas to the methane gas is less than or equal to one;
- injecting additional liquid water out of the fuel injector and into the combustion chamber, wherein the additional liquid water and the liquid water of the fuel-water mixture are received from a common water source, and a second ratio of quantities of the liquid water within the fuel-water mixture to the additional liquid water is directly proportional to the first ratio;
- igniting a fuel-air mixture within the combustion chamber to generate combustion products, the fuel-air mixture comprising the gaseous fuel;
- and
- directing the combustion products across a turbine rotor of the turbine engine to drive rotation of the turbine rotor and rotation of a driven rotor of a mechanical load coupled to the turbine rotor.
2 more elements
A method of operation, comprising:
- operating a fluid system of a turbine engine in a first mode, the operating of the fluid system in the first mode comprising
- directing a fuel-water mixture out of a first passage of a fuel injector and into a combustion chamber, the fuel-water mixture including liquid water and a first gaseous fuel, and the combustion chamber within a combustor of a turbine engine, wherein the first gaseous fuel comprises hydrogen gas and methane gas, and a first ratio of quantities of the hydrogen gas to the methane gas is less than or equal to one;
- directing additional liquid water out of a second passage of the fuel injector, wherein the second passage is fluidly discrete from the first passage, and the additional liquid water and the liquid water of the fuel-water mixture are received from a common water source, and a second ratio of quantities of the liquid water within the fuel-water mixture to the additional liquid water is directly proportional to the first ratio;
- and
- igniting a first fuel-air mixture within the combustion chamber, the first fuel-air mixture comprising the first gaseous fuel;
- and
- operating the fluid system in a second mode, the operating of the fluid system in the second mode comprising
- directing a second gaseous fuel out of the first passage and into the combustion chamber;
- and
- igniting a second fuel-air mixture within the combustion chamber, the second fuel-air mixture comprising the second gaseous fuel.
7 more elements
Dependencies are inferred from the claim text.