Landing gear mechanism including controlled instroke and rebound

Details Landing gear mechanism including controlled instroke and rebound Landing gear mechanism including controlled instroke and rebound

1986-06-19

1988-11-29

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

Position of thrust member relative to chamber

244104FP, 267 6422, F16F 948

Patent

active

047874864

ABSTRACT:
Landing gear mechanism includes a variable area orifice to obtain the desired rebound damping of the landing gear mechanism during landing, and one or more check valve assemblies that operate in conjunction with the variable area orifice to provide the desired controlled instroke of the landing gear mechanism during landing. Also, the landing gear mechanism is provided with a relief valve assembly that permits bypass flow at a pre-set pressure drop only during an intermediate portion of the instroke of the landing gear mechanism to attenuate severe bumps and the like without adversely affecting the controlled instroke and rebound damping of the landing gear mechanism during landing.

REFERENCES:
patent: 522508 (1894-07-01), Canet
patent: 2332520 (1943-10-01), Lucht
patent: 2497972 (1950-02-01), Beecher
patent: 3003595 (1961-10-01), Patriquin
patent: 3006628 (1965-10-01), Utting
patent: 3215283 (1965-11-01), Shaver
patent: 3367453 (1968-02-01), Arendarski
patent: 3713546 (1973-01-01), Daugherty, Jr.
patent: 4004662 (1977-01-01), Sorgatz et al.
patent: 4405119 (1983-09-01), Masclef et al.
patent: 4423800 (1984-01-01), Kobiske et al.
patent: 4552324 (1985-11-01), Hrusch
patent: 4595159 (1986-06-01), Hrusch

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