Corrosion resistant sleeve for an air data probe
AssigneeRosemount Aerospace Inc.
InventorsTimothy Thomas Golly, Paul Robert Johnson, Greg Seidel
Life of this patent
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Abstract
A corrosion resistant sleeve for an air data probe with the sleeve being cylindrical in shape with a first end and a second end, at least one circumferentially extending groove on an outside of the sleeve configured to accommodate coils of a heater, and a bore at a center of the sleeve and extending between the first end and the second end configured to provide a pneumatic pathway that allows atmospheric conditions to reach measurement equipment of the air data probe.
Claims20
A corrosion resistant sleeve for an air data probe comprising:
- the sleeve being cylindrical in shape with a first end and a second end;
- at least one circumferentially extending groove on an outside of the sleeve configured to accommodate heater coils;
- and
- a bore at a center of the sleeve and extending between the first end and the second end configured to provide a pneumatic pathway that allows atmospheric conditions to reach measurement equipment of the air data probe.
An air data probe comprising:
- a sleeve having a first end and a second end, the sleeve including a circumferentially extending groove on an outside surface and a bore extending along a center of the sleeve between the first end and the second end;
- a heater having a wire coil within the groove of the sleeve;
- measurement equipment configured to measure atmospheric conditions provided to the measurement equipment through the bore in the sleeve;
- and
- a shell outward from the sleeve and heater coil with the shell having an opening adjacent to the bore at the first end of the sleeve,
- wherein the sleeve prevents corrosive elements from coming into contact with the heater coils.
A method of constructing an air data probe comprising:
- winding a heater coil onto a sleeve, the sleeve including a circumferential groove to accommodate the heater coil and a bore extending between a forward end and a rear end;
- coating the heater coil and sleeve in a braze slurry;
- inserting the heater coil and sleeve into a shell;
- heating the heater coil, sleeve, shell, and braze slurry to liquefy the braze slurry;
- and
- cooling the heater coil, sleeve, shell, and braze slurry to allow the braze slurry to solidify to seal the heater coil and sleeve within the shell to prevent corrosion of the heater coil.
Dependencies are inferred from the claim text.