Power plants – Combustion products used as motive fluid
Patent
1993-03-10
1994-04-19
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
F02C 726, F02C 928
Patent
active
053035410
ABSTRACT:
A fuel control system for accurately controlling the fuel flow rate to a gas turbine engine during the initial stages of startup is provided. The fuel control system has a novel, closed control loop that measures the actual fuel flow rate to the primary nozzles of the engine, and uses this measurement to trim the commanded fuel flow rate signal generated by preprogrammed schedules in the engine's electronic control unit. By the novel arrangement of proportional and integral controllers, the fuel control system maintains a forward path gain of unity while permitting the independent adjustment of the gain of the controllers to achieve the system stability and response necessary for quick correction of fuel flow rate errors.
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patent: 4337615 (1982-07-01), Lacroix
patent: 4508127 (1985-04-01), Thurston
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patent: 5060469 (1991-10-01), Klaass et al.
Fink, Donald G. "Electronic Engineers' Handbook" McGraw-Hill, New York, 1775 pp. 24-14 & 24-15.
Cannon Dennis L.
Goff Edward R.
Allied-Signal Inc.
Casaregola Louis J.
Holden Jerry J.
McFarland James W.
Walsh Robert A.
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