Linear actuator, in particular for driving an aircraft landing g

Details Linear actuator, in particular for driving an aircraft landing g Linear actuator, in particular for driving an aircraft landing g

1993-02-01

1994-11-01

Barefoot, Galen L.

Aeronautics and astronautics

Landing gear

Retractable

744248R, 192 76, 192 93C, B64C 2518

Patent

active

053601858

ABSTRACT:
A linear actuator, in particular for driving an aircraft landing gear leg, the actuator comprising a main body with a screw that is prevented from moving axially and that is constrained to rotate with a coaxial gear wheel that meshes with the outlet gear wheel of a driving motor and gear box assembly, and a nut that is secured to a sliding guide rod inside said main body. According to the invention, the rotary connection between the screw and the coaxial gear wheel is provided by declutchable coupling means, which means is declutched in an emergency for the purpose of releasing the screw by associated trigger means whose operation requires very little energy.

REFERENCES:
patent: 2611464 (1952-09-01), Rabe
patent: 2828845 (1958-04-01), Thornton
patent: 2843237 (1958-07-01), Carr
patent: 3066777 (1962-12-01), Hoffman
patent: 3572163 (1971-03-01), Clark
patent: 4067425 (1978-01-01), Soter
patent: 4794810 (1989-01-01), Parsons
patent: 4920816 (1990-05-01), Inabe et al.
patent: 5028828 (1991-07-01), Felkai et al.

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