Aeronautics and astronautics – Aircraft power plants
Patent
1997-03-14
2000-11-07
Poon, Peter M.
Aeronautics and astronautics
Aircraft power plants
23926519, 23926539, 23926533, B63H 1110
Patent
active
061424161
ABSTRACT:
A nozzle failsafe nozzle actuating system for an aircraft gas turbine engine variable exhaust nozzle having a plurality of pivotal flaps circumferentially disposed about a nozzle centerline and bounding an exhaust gas flowpath in the nozzle is provided with a number of primary actuators which are operably connected to nozzle flaps for pivoting and setting an attitude of the flaps relative to the centerline and wherein each of the primary actuators is extendable between a fully extended position and a fully retracted position, and a failsafe nozzle actuating actuator for setting the attitude of each of the flaps to a failsafe attitude during a failsafe mode of the nozzle actuating system wherein the failsafe attitude is such that each of the primary actuators is at a partially retracted position between the fully extended and the fully retracted positions. A particular embodiment provides actuator assembly wherein a failsafe piston rod of the failsafe actuator is disposed concentrically about a primary rod of the primary actuator and a stop element is provided for the failsafe rod to engage the primary rod when the primary rod is being retracted and the failsafe rod is extended.
REFERENCES:
patent: 1181111 (1916-05-01), Carter
patent: 2395435 (1946-02-01), Thompson et al.
patent: 2866315 (1958-12-01), Schakel
patent: 2893209 (1959-07-01), Colley
patent: 3227048 (1966-01-01), Criffield et al.
patent: 3322939 (1967-05-01), Curties et al.
patent: 3554084 (1971-01-01), Rasmussen
patent: 3612400 (1971-10-01), Johnson
patent: 3806063 (1974-04-01), Fitzgerald
patent: 4000854 (1977-01-01), Konarski et al.
patent: 4030291 (1977-06-01), Sargisson
patent: 4128208 (1978-12-01), Ryan et al.
patent: 4538504 (1985-09-01), Kast
patent: 4704865 (1987-11-01), Archung
patent: 4711089 (1987-12-01), Archung
patent: 4718647 (1988-01-01), Ludwig
patent: 4799623 (1989-01-01), Bruchez, Jr. et al.
patent: 4805515 (1989-02-01), Kast
patent: 4807517 (1989-02-01), Daeschner
patent: 4994660 (1991-02-01), Hauer
patent: 5011080 (1991-04-01), Barcza et al.
patent: 5174502 (1992-12-01), Lippmeier et al.
patent: 5279107 (1994-01-01), Meisner et al.
Ausdenmoore Robert M.
Clements Martin A.
Lippmeier William C.
Markstein David J.
Dinh T.
General Electric Company
Hess Andrew C.
Poon Peter M.
Young Rodney M.
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