Power plants – Combustion products used as motive fluid
Patent
1990-11-09
1992-12-29
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
60 3907, 60 3929, F02C 600, F02G 300
Patent
active
051741059
ABSTRACT:
A method of operating a dual rotor gas turbine engine includes bypassing a predetermined portion of compressed airflow from a high pressure compressor to downstream of a high pressure turbine first stage nozzle, and increasing core speed of the engine to a value greater than a reference value for improving hot day lapse rate curve and output shaft horsepower. The method steps are performed at least at values of ambient air temperature greater than a first value thereof associated with a reference maximum value of output shaft horsepower, and without increasing high pressure compressor discharge air temperature beyond a maximum value thereof associated with the reference maximum value of the output shaft horsepower. The dual rotor, gas turbine engine includes a preexisting design, aircraft derivative core engine including a high pressure compressor and a high pressure turbine first stage nozzle. A portion of compressed airflow from the high pressure compressor is bypassed to a point downstream of the high pressure turbine first stage nozzle, and core speed is increased for increasing output shaft horsepower of a low pressure turbine without increasing high pressure compressor discharge air temperature beyond a maximum value thereof.
REFERENCES:
patent: 2873576 (1959-02-01), Lombard
patent: 3255586 (1966-06-01), Hennig et al.
patent: 3688504 (1972-09-01), Hutchinson et al.
patent: 3908362 (1975-09-01), Szydlowski
patent: 3964257 (1976-06-01), Lardellier
patent: 4054030 (1977-10-01), Pedersen
patent: 4055946 (1977-11-01), Sens
patent: 4068471 (1978-01-01), Simmons
patent: 4080785 (1978-03-01), Koff et al.
patent: 4157010 (1979-06-01), Sailer
patent: 4448019 (1984-05-01), Klees
patent: 4631914 (1986-12-01), Hines
patent: 4845939 (1989-07-01), Jordan et al.
patent: 4959954 (1990-10-01), Nishijima
patent: 4991394 (1991-02-01), Wright
patent: 5059093 (1991-11-01), Khalid et al.
General Electric Company, CF6-80C2 Engine Airflow FADEC Control, single page in color, undated.
Bertsch Richard A.
Davidson James P.
General Electric Company
Richman Howard R.
Squillaro Jerome C.
LandOfFree
Hot day M & I gas turbine engine and method of operation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hot day M & I gas turbine engine and method of operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot day M & I gas turbine engine and method of operation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1879753