Power plants – Reaction motor – Method of operation
Patent
1993-10-04
1995-04-11
Casaregola, Louis J.
Power plants
Reaction motor
Method of operation
602263, 60 395, F02K 3075
Patent
active
054047137
ABSTRACT:
A FLADE aircraft gas turbine engine having a FLADE duct circumscribing a preferably variable cycle inner gas turbine engine and having a FLADE fan disposed in the FLADE duct and radially outward of and drivenly connected to a first fan disposed in a first fan duct of the inner engine. The annular inlet of the first fan duct is sized to receive essentially the full mass airflow of the engine at full power conditions with the annular FLADE duct inlet essentially closed off. The engine is further designed and operable to fully open the inlet of the flade duct at predetermined part power flight conditions and essentially close it at full power conditions such as take off. An infra-red (IR) radiation shielding apparatus is disposed in the exhaust duct of the engine to block infra-red radiation emitting hot metal surfaces of the engine from view through an exhaust outlet of the exhaust duct and is cooled by air flow from the FLADE duct. The IR radiation shielding apparatus of one embodiment is constructed of a plurality of circumferentially disposed hollow vanes supporting an essentially hollow centerbody. The hollow vanes are operable to receive cooling air from the FLADE duct and flow it on to the hollow centerbody which exhausts the spent cooling air through a variable throat centerbody nozzle.
REFERENCES:
patent: 2940252 (1960-06-01), Reinhart
patent: 3210934 (1965-10-01), Smale
patent: 3296800 (1967-01-01), Keenan et al.
patent: 3449914 (1969-06-01), Brown
patent: 3792584 (1974-02-01), Klees
patent: 3841091 (1974-10-01), Sargisson et al.
patent: 3854286 (1974-12-01), Klees
patent: 3879941 (1975-04-01), Sargisson
patent: 3886737 (1975-06-01), Grieb
patent: 3910375 (1975-10-01), Hache et al.
patent: 3915413 (1975-10-01), Sargisson
patent: 3970252 (1976-07-01), Smale et al.
patent: 3981143 (1976-09-01), Ross et al.
patent: 3990638 (1976-11-01), Johnson
patent: 4004416 (1977-01-01), Amelio et al.
patent: 4026472 (1977-05-01), Rabone
patent: 4043121 (1977-08-01), Thomas et al.
patent: 4050242 (1977-09-01), Dusa
patent: 4064692 (1977-12-01), Johnson et al.
patent: 4066214 (1978-01-01), Johnson
patent: 4069661 (1978-01-01), Rundell et al.
patent: 4086761 (1978-05-01), Schaut et al.
patent: 4095417 (1978-06-01), Banthin
patent: 4136518 (1979-01-01), Hurley et al.
patent: 4214441 (1980-07-01), Mouritsen et al.
patent: 4290262 (1981-09-01), Wynosky et al.
patent: 4791783 (1988-12-01), Neitzel
patent: 4993663 (1991-02-01), Lahti et al.
patent: 5054288 (1991-10-01), Salemann
patent: 5058617 (1991-10-01), Stockman et al.
patent: 5074118 (1991-12-01), Kepler
Jet Propulsion for Aerospace Applications, Second Edition, by Walter J. Hesse and Nicholas V. S. Mumford, Jr. Chapter 5.5 entitled "Mass-Flow Ratio or Area Ratio" on pp. 111-114.
Casaregola Louis J.
General Electric Company
Narciso David L.
Squillaro Jerome C.
LandOfFree
Spillage drag and infrared reducing flade 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 Spillage drag and infrared reducing flade engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spillage drag and infrared reducing flade engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1531256