Gas turbine engine control system

Details Gas turbine engine control system Gas turbine engine control system

2005-01-04

2005-01-04

Casaregola, Louis J. (Department: 3746)

Power plants

Combustion products used as motive fluid

Process

C060S039281, C060S794000

Reexamination Certificate

active

06837055

ABSTRACT:
An apparatus and method for controlling a gas turbine engine involves calculating a simple corrected speed value for the engine using values of compressor speed and inlet stagnation temperature of the compressor. This simple corrected speed value is then adjusted to take into account the water vapour concentration at the inlet to the compressor. This results in a more accurate value of corrected speed for the compressor, which may be used to modulate the fuel supply to a combustor of the engine or to control the geometry of one or more variable compressors in the engine.

REFERENCES:
patent: 4252498 (1981-02-01), Radcliffe
patent: 5477670 (1995-12-01), Ikeda
patent: 6364602 (2002-04-01), Andrew et al.
patent: 6708496 (2004-03-01), Gadde et al.
patent: 6715916 (2004-04-01), Tomlinson et al.

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