Power plants – Internal combustion engine with treatment or handling of... – Material from exhaust structure fed to engine intake
Patent
1992-04-09
1993-08-17
Bertsch, Richard A.
Power plants
Internal combustion engine with treatment or handling of...
Material from exhaust structure fed to engine intake
23926519, F02K 100
Patent
active
052358089
ABSTRACT:
A method and apparatus are disclosed for spoiling thrust from combustion gases discharged from an aircraft gas turbine engine at ground idle operating condition. The method comprises the step of positioning a secondary exhaust flap of the exhaust nozzle to form a diffuser for the combustion gases at the ground idle operating condition for maintaining attachment of the combustion gases along the secondary exhaust flaps for spoiling thrust. An exemplary and preferred exhaust nozzle is provided wherein the secondary exhaust flaps are positionable in part independently of primary exhaust flaps so that the primary and secondary flaps may be disposed together in different positions during ground idle, dry, and augmented operating conditions of the engine. Thrust spoiling allows the engine to be operated at relatively high core speeds for providing bleed-air at relatively high pressure or electrical power from a generator, or both, without attendant relatively high thrust from the engine at the ground idle operating condition.
REFERENCES:
patent: 2846843 (1958-08-01), Clark et al.
patent: 2846844 (1958-08-01), O'Rourke
patent: 2880575 (1959-04-01), Scialla
patent: 2926491 (1960-03-01), Hyde
patent: 3454227 (1969-07-01), Motycka
patent: 3807637 (1974-04-01), Camboulives et al.
patent: 3954225 (1976-05-01), Camboulives et al.
patent: 4037405 (1977-07-01), Huenninger et al.
patent: 4049199 (1977-09-01), Nightingale
patent: 4091613 (1978-05-01), Young
patent: 4128208 (1978-12-01), Ryan et al.
patent: 4141501 (1979-02-01), Nightingale
patent: 4176792 (1979-12-01), McCardle, Jr.
patent: 4245787 (1981-01-01), Freid
patent: 4279382 (1981-07-01), Wilson, Jr.
patent: 4392615 (1983-07-01), Madden
patent: 4420932 (1983-12-01), Mendez et al.
patent: 4456178 (1984-06-01), Jones et al.
patent: 4463903 (1984-08-01), Nightingale
patent: 4466573 (1984-08-01), Camboulives et al.
patent: 4587806 (1986-05-01), Madden
patent: 4605169 (1986-08-01), Mayers
patent: 4884748 (1989-12-01), Ward et al.
patent: 4994660 (1991-02-01), Hauer
patent: 5082182 (1992-01-01), Bruchez, Jr. et al.
Irwin E. Treager, Aircraft Gas Turbine Engine Technology, 1970, 127-129.
A. Kuchar, "Variable Convergent-Divergent Exhaust Nozzle Aerodynamics", Ch14 of Air Force Aero Propulsion Laboratory Report AFAPL-TR-78-52, 1978, pp: cover 14, 14-i, 14-l through 14-15.
Bertsch Richard A.
General Electric Company
Richman Howard R.
Squillaro Jerome C.
LandOfFree
Exhaust nozzle including idle thrust spoiling does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exhaust nozzle including idle thrust spoiling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhaust nozzle including idle thrust spoiling will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2236047