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US 7,500,347 B2Granted
Variable geometry combustor
AssigneeROLLS-ROYCE plc
InventorsNoel A Sanders, Carl C Bourne, Anthony J Moran, Paul Fletcher, Philip P Walsh
Life of this patent
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Abstract
A variable geometry combustor having a combustor liner that defines at least one dilution port in order to provide air to a dilution zone within the combustor. At least one valve is positioned adjacent the dilution port for controlling the flow of air through the dilution port wherein the valve is settable to maintain one of a plurality of different open configurations.
Claims12
A gas turbine variable geometry combustor, comprising:
- a combustor liner defining a plurality of dilution ports for providing air to a dilution zone of the gas turbine combustor;
- and
- a plurality of valves, each valve being positioned adjacent a respective one of the dilution ports for controlling the flow of air through the dilution ports, each valve being settable to maintain one of a plurality of different open configurations, each valve being arranged for reciprocating movement and said combustor further comprising control means for variably controlling the setting of the valves wherein the control means comprises a rotatable actuating ring, the actuating ring has a plurality of camming surfaces and each valve has a cam follower arranged to rest on a respective one of the plurality of camming surfaces.
Dependencies are inferred from the claim text.