Patent ID: 9045237
Filing Date: 2015-06-02
Classification: B64C,B64F,G01M

Abstract:
1. A method of monitoring internal fluid levels in a landing gear on an aircraft, the landing gear comprising a telescopic strut, the internal fluids comprising a compressible fluid and a non-compressible fluid, which telescopic strut is capable of extension, comprising the steps of: a) allowing the strut to fully extend under no load while the aircraft is in flight; b) determining a temperature-compensated pressure of the fluids in the strut while the strut is fully extended under no load; c) comparing the no load temperature-compensated pressure of the fluids in the strut, to a predetermined pressure of a properly serviced strut; d) monitoring the temperature-compensated pressure of the strut over elapsed time after the landing gear makes contact with the ground; and e) if the no load pressure is below the predetermined pressure, determining from the temperature-compensated pressure of the strut over elapsed time after the landing gear makes contact with the ground the amount of compressible fluid in the strut.