Aeronautics and astronautics – Retarding and restraining devices – Friction brakes
Patent
1991-08-15
1993-03-30
Barefoot, Galen
Aeronautics and astronautics
Retarding and restraining devices
Friction brakes
23926529, 23926519, 602262, B64C 3304, F02K 302
Patent
active
051976935
ABSTRACT:
A thrust reverser system for fan jet type aircraft gas turbine engines using a "sliding hinge" arrangement for moving blocker doors between the stowed and deployed positions. Blocker doors fill a plurality of radially arranged openings in an engine nacelle near the aft end of the nacelle. In the stowed position, each blocker door forms and inner and outer streamlined surface corresponding to the nacelle walls, with no actuator mechanisms extending into the air flow stream within the nacelle. Each blocker door is moved to the deployed position by an extensible rod, such as a hydraulic piston rod, extending between the nacelle near the forward edge of the opening and the approximate centerline of the door. As the door begins to move rearwardly, slider pins on the door edges slide along tracks on the adjacent nacelle islands between adjacent openings. Meanwhile, a hinged bar secured at its aft end to the adjacent nacelle island and at its forward end to the door edge rotates, pivoting the aft end of the door inwardly into contact with the engine core while the door forward end pivots outwardly of the opening. The doors substantially block airflow through the duct between nacelle and core and direct it in an outward, reverse or forward, direction.
REFERENCES:
patent: 3570767 (1971-03-01), Lawson et al.
patent: 3605411 (1971-09-01), Maison et al.
patent: 3690561 (1972-09-01), Potter
patent: 4410152 (1983-10-01), Kennedy et al.
patent: 4485970 (1984-12-01), Fournier et al.
patent: 5054285 (1991-10-01), Geidel et al.
Barefoot Galen
Gilliam Frank D.
Rohr Inc.
Schlesinger Patrick J.
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