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AssigneeRosemount Aerospace Inc.
InventorsGreg A. Seidel, Dennis J. Cronin, John H. Mette, Mark R. Koosmann, James A. Schmitz, John R. Fedele, Dana A. Kromer
Estimating the term…
A multi-function air data sensing probe has a strut that is mounted on an aircraft and extends laterally from the aircraft skin. The strut is supported on a base plate, and has a pitot pressure sensing tube at the outer end thereof, with a pitot port facing upstream, and also includes a passageway for total air temperature sensor including a forwardly facing inlet scoop that leads to a chamber in the strut that is laterally offset from the inlet scoop so that flow changes direction as it enters the chamber. The surface defining the change of direction between the scoop and the chamber is provided with bleed holes for bleeding off boundary layer air. A vane type air data sensor is mounted on a shaft that rotates freely and is supported on the strut, and is positioned to sense the relative air flow past the strut to determine changes of relative angles of such air flow. In addition, the strut has static pressure sensing ports on lateral sides thereof leading to a separate chamber on the interior of the strut.
A multi-function air data sensor probe for sensing a plurality of air data parameters comprising a strut that extends from the skin of an aircraft, a pitot pressure sensing port at an outer end of said strut, a total air temperature sensor in said strut, at least one static pressure sensing port on said strut, and a rotatably mounted angle of attack sensing vane mounted on the strut for rotation about an axis generally perpendicular to the skin of the aircraft on which the strut is mounted, and extending outwardly from an outer end of said strut, the vane moving about the axis to indicate relative air flow direction past the strut.
A multi-function air data sensing probe comprising a strut having a base end mountable to an aircraft to extend laterally outwardly therefrom, an angle of attack sensor vane mounted on said strut and positioned at an outer end thereof and extending outwardly therefrom, said vane being pivotable about an axis generally perpendicular to a surface of an aircraft on which the strut is mounted, a sensor to sense an angular position of the vane relative to a reference, an outer end of the said strut having a pitot port facing upstream relative to air flow past the strut, a forwardly facing total temperature sensor inlet scoop formed on the strut, and spaced from the pitot port, said scoop leading to a flow passageway that changes direction to direct flow into a first chamber, a total air temperature sensor in said first chamber, said first chamber having exhaust openings therefrom for permitting air to flow through said chamber, separate static pressure ports on each of the lateral sides of the said strut, and pressure sensors connected to separately sense pressures at the pitot port and the static pressure ports.
Dependencies are inferred from the claim text.