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US 12,305,578 B2Granted
Ignition system for power generation engine
AssigneeWoodward, Inc.
InventorsBidhan Dam, Logan Oonk, Dan Huber, Vinay Prasad, Sudipa Sarker
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Abstract
The subject matter of this specification can be embodied in, among other things, a method that includes igniting an igniter stage configured to ignite combustion in a turbine combustor assembly, receiving pressure signals from a pressure sensor configured to sense pressure in the turbine combustor assembly, and controlling operation of the igniter stage based on the received pressure signals.
Claims14
A turbine combustor assembly, comprising:
- a primary combustion chamber in fluid communication with a primary fuel injector and a primary air inlet;
- and
- an igniter carried by the primary combustion chamber, comprising:
- an igniter stage comprising:
- an auxiliary combustion chamber housing comprising a mixing chamber and a tubular throat converging downstream of the mixing chamber;
- and
- an ignition source projecting into the mixing chamber of the auxiliary combustion chamber housing;
- a pressure sensor configured to sense pressure within the primary combustion chamber;
- and
- a controller configured to:
- receive pressure feedback signals, from the pressure sensor, representative of pressure fluctuations due to combustion in the primary combustion chamber;
- identify dynamic pressures due to combustion based on the received pressure feedback signals;
- control an increase of a fuel flow to the igniter during combustion in the primary combustion chamber based on the identification;
- modify the dynamic pressures due to combustion based on the controlled increase of the fuel flow to the igniter during combustion in the primary combustion chamber;
- and
- reduce audible emissions of combustion in the turbine combustor assembly based on the modification of the dynamic pressures during combustion in the primary combustion chamber.
13 more elements
A method, comprising:
- igniting an igniter stage;
- igniting, by the ignited igniter stage, combustion in a turbine combustor assembly;
- receiving pressure feedback signals from a pressure sensor configured to sense pressure fluctuations due to the combustion in the turbine combustor assembly;
- identifying dynamic pressures due to combustion based on the received pressure feedback signals;
- controlling operation of the igniter stage by increasing a flow of fuel to the igniter stage during combustion in the primary combustion chamber based on the identification;
- modifying the dynamic pressures due to combustion based on the controlled increase of the flow of fuel to the igniter stage during combustion in the primary combustion chamber;
- and
- reducing audible emissions of combustion in the turbine combustor assembly based on the modification of the dynamic pressures during combustion in the primary combustion chamber.
5 more elements
Dependencies are inferred from the claim text.