Power plants – Reaction motor – Interrelated reaction motors
Patent
1991-04-10
1994-04-26
Casaregola, Louis J.
Power plants
Reaction motor
Interrelated reaction motors
60242, F02K 302
Patent
active
053055993
ABSTRACT:
Control of a gas turbine engine, suitable for powering an aircraft, is accomplished by varying outlet nozzle cross section and/or a mixing of bypass air with exhaust gas at an inlet to the nozzle. The engine includes a core engine having a combustion chamber and high and low pressure turbines followed by an exhaust plenum. High and low pressure compressors driven by the turbine assembly direct air into the combustion chamber and into a bypass duct. The bypass duct extends from an outlet of the low pressure compressor. Pressure of fluid (air or exhaust) is measured at an inlet to the high pressure compressor, in the bypass duct, and in the exhaust plenum. Ratios of the pressure of the duct pressure or of the pressure at the inlet of the high-pressure compressor, to the plenum pressure are employed in a feedback loop for control of nozzle size, and also of mixing valve position in an alternate embodiment of the invention. The feedback loop includes computation of a desired pressure ratio based on desired power and inlet temperature to the low-pressure compressor.
REFERENCES:
patent: 2858671 (1958-11-01), Fox
patent: 2873576 (1959-02-01), Lombard
patent: 3316717 (1967-05-01), Castle et al.
patent: 3449914 (1969-06-01), Brown
patent: 3739580 (1973-06-01), Blandl
patent: 3841091 (1974-10-01), Sargisson et al.
patent: 3852956 (1974-12-01), Martin
patent: 3879941 (1975-03-01), Sargisson
patent: 3938328 (1976-02-01), Klees
patent: 4010608 (1977-03-01), Simmons
patent: 4043121 (1977-08-01), Thomas et al.
patent: 4052845 (1977-10-01), Tumavicus
patent: 4064692 (1977-12-01), Johnson et al.
patent: 4080785 (1978-03-01), Koff et al.
patent: 4128995 (1978-12-01), Toot
patent: 4139887 (1979-02-01), Levesque
patent: 4159625 (1979-07-01), Kerr
patent: 4175384 (1979-11-01), Wagenknecht et al.
patent: 4292802 (1981-10-01), Snow
patent: 4376375 (1983-03-01), Boudigues
patent: 4380148 (1983-04-01), Burrage et al.
patent: 4409788 (1983-10-01), Nash et al.
patent: 4414807 (1983-11-01), Kerr
patent: 4432201 (1984-02-01), Hawes
patent: 4442667 (1984-04-01), MacIsaac
patent: 4467600 (1984-08-01), Peikert
patent: 4507915 (1985-04-01), Evans
patent: 4813229 (1989-03-01), Simmons
patent: 4959955 (1990-10-01), Patterson et al.
Casaregola Louis J.
General Electric Company
Shay Bernard E.
Squillaro Jerome C.
LandOfFree
Pressure-ratio control of gas turbine engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure-ratio control of gas turbine engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure-ratio control of gas turbine engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1704440