Shock strut
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United States of America Patent
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-
Feb 4, 1992
Grant Date -
N/A
app pub date -
May 14, 1990
filing date -
May 14, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cylinder housing an oil chamber and a piston housing a pair of concentric gas chambers define a telescopingly compressible shock strut. Upon compression of the shock strut, oil under pressure flows from the oil chamber into a compartment defined in part by a floating piston of one of the gas chambers to urge translation of the floating piston if the pressure exerted is above a first threshold and to compress the gas within the chamber. When the oil under pressure exceeds a second threshold, a floating piston of the other of the gas chambers and forming a part of the compartment is urged to translate and to compress the gas in the other gas chamber. A relief valve associated with each gas chamber relieves pressure therein above a further threshold.
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