Controlling a gas turbine engine with a transient load

Details Controlling a gas turbine engine with a transient load Controlling a gas turbine engine with a transient load

2006-09-07

2010-10-26

Rodríguez, William H (Department: 3741)

Power plants

Combustion products used as motive fluid

Process

C060S039281, C060S795000

Reexamination Certificate

active

07818970

ABSTRACT:
A technique is provided for operating a gas turbine engine that has a combustor with a primary stage and one or more other stages and a first compressor providing an air flow to the combustor. This technique includes driving a variable load device with the rotating shaft of the gas turbine engine and sensing pressure of the air flow and an engine speed. In response to a decrease in loading of the engine by the variable load device: selectively bleeding the air flow as a function of the engine speed and regulating temperature in the primary stage of the combustor as a function of a ratio between fuel flow provided to primary stage and the pressure to prevent engine flame out. In one form, the combustor is arranged as a dry load emissions type and the variable load device includes an electric power generator.

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