Method and system for a gas turbine engine purge circuit water injection
AssigneeGeneral Electric Company
InventorPierre Montagne
Life of this patent
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Abstract
A method and fuel supply system for supply of a combustion chamber with at least one combustible fluid are provided. The fuel supply system includes a combustion chamber including a fuel injector, at least one supply circuit configured to supply the combustion chamber with a combustible fluid, and at least one purge circuit configured to purge the supply circuit, the purge circuit connected to a purge air source and the at least one supply circuit, the purge circuit including at least two isolation valves defining a cavity between the at least two isolation valves, the purge circuit including a water injection circuit configured to inject water into the cavity, the purge circuit including a cavity draining circuit configured to drain the cavity.
Claims20
A fuel supply system for supply of a combustion chamber with at least one combustible fluid, said fuel supply system comprising:
- a combustion chamber comprising a fuel injector;
- at least one supply circuit configured to supply said combustion chamber with a combustible fluid;
- and
- at least one purge circuit configured to purge said supply circuit, said purge circuit connected to a purge air source and said at least one supply circuit, said purge circuit comprising at least two isolation valves defining a cavity between the at least two isolation valves, said purge circuit comprising a water injection circuit configured to inject water into said cavity, said purge circuit comprising a cavity draining circuit configured to drain said cavity.
A method of supplying a combustion chamber with at least one combustible fluid using a fuel supply system, the fuel supply system coupled in flow communication with a first purge system, the first purge system including at least two isolation valves that define a cavity therebetween, the method comprising:
- filling the cavity with water;
- channeling the at least one combustible fluid to the combustion chamber through a fuel supply isolation valve;
- and
- venting from the water-filled cavity at least one of air and the at least one combustible fluid leaking by any of the at least two isolation valves.
A gas turbine engine system comprising:
- a compressor comprising a low pressure inlet, a high pressure outlet, and a bleed port configured to extract air at a pressure between the low pressure inlet and the high pressure outlet;
- a combustion chamber comprising a fuel injector;
- a turbine coupled in serial flow communication with said compressor and said combustion chamber;
- at least one supply circuit configured to supply said combustion chamber with a combustible fluid;
- and
- at least one purge circuit configured to purge said supply circuit, said purge circuit connected to a purge air source and said at least one supply circuit, said purge circuit comprising at least two isolation valves defining a cavity between the at least two isolation valves, said purge circuit comprising a water injection circuit configured to inject water into said cavity, said purge circuit comprising a cavity draining circuit configured to drain said cavity.
Dependencies are inferred from the claim text.