Dual manifold fuel system
AssigneeGeneral Electric Company
InventorsStanford P. T. Seto, Richard E. Stenger
Life of this patent
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Abstract
A dual manifold fuel supply system for the combustor of gas generator in a turbofan engine wherein alternating circumferentially aligned fuel injectors are alternately supplied with fuel by a first or second fuel manifold. Fuel flow to both manifolds are controlled by a fuel control, preferably a full authority digital electronic control, and the second manifold has an off valve interposed between it and the fuel control.
Claims2
A fuel injection system for use in the combustor section of a gas turbine engine said fuel injection system comprising:
- a plurality of generally downstream facing fuel nozzles wherein a portion of said fuel nozzles are connected to a shutoff valve means which is interruptible, a means for interrupting said valve means in response to a control signal, and
- a means for generating said control signal based on the gas turbine fuel to air ratio.
A fuel injection system for use in the combustor section of a gas turbine engine said fuel injection system comprising;
- first and second fuel lines,
- first and second pluralities of generally downstream facing fuel nozzles in fluid supply communication with said first and second fuel lines respectively,
- a shutoff valve interposed in said first fuel line,
- a means for shutting on and off said valve in response to a control signal;
- and
- a means for generating said control signal based upon the fuel to air ratio of the engine.
Dependencies are inferred from the claim text.