Retraction / extension of a landing gear in an aircraft
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United States of America Patent
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Nov 10, 2020
Grant Date -
Nov 30, 2017
app pub date -
May 25, 2017
filing date -
May 25, 2016
priority date (Note) -
In Force
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Abstract
A telescoping strut for a retractable landing gear in an aircraft. The telescoping strut comprises a pre-pressurized and central extension chamber extending along the telescoping strut and a surrounding retraction chamber. For retraction, an hydraulic generation architecture of the aircraft feeds a single input/output passage of the surrounding retraction chamber with a overcoming fluid pressure that overwhelms a extension positive pressure in the central extension chamber and opposes the effect of the pre-pressurizing. The retraction system is for instance for a rotorcraft.
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