Apparatuses and methods for anti-icing of speed measurement probes

Patent metadata

Field	Value
Publication number	US-2017190431-A1
Application number	US-201614987318-A
Country	US
Kind code	A1
Filing date	Jan 4, 2016
Priority date	Jan 4, 2016
Publication date	Jul 6, 2017
Grant date	—

Abstract

A de-icing system is provided that includes a member, a coil, and a power supply. The member includes an anti-icing portion. The coil is inductively coupled to the anti-icing portion of the member. The power supply is coupled to the coil, and is configured to provide voltage to the coil. The coil emits electromagnetic energy responsive to power supplied by the power supply. Responsive to the electromagnetic energy, eddy currents are generated in the anti-icing portion that provide heating of the anti-icing portion.

First claim

What is claimed is:

1 . A de-icing system comprising:
a member including an anti-icing portion; a coil inductively coupled to the anti-icing portion of the member; and a power supply coupled to the coil, the power supply configured to provide voltage to the coil, wherein the coil emits electromagnetic energy responsive to power supplied by the power supply, wherein, responsive to the electromagnetic energy, eddy currents are generated in the anti-icing portion that provide heating of the anti-icing portion.

2 . The system of claim 1 , wherein the anti-icing portion includes an anti-icing heating surface comprising a smart suscepting alloy.

3 . The system of claim 1 , wherein the coil and the anti-icing portion are disposed on opposite sides of the member.

4 . The system of claim 1 , wherein the member is a pitot tube having a support, a static cavity, and a pitot cavity, the anti-icing portion including an anti-icing heating surface disposed proximate a boundary of the pitot cavity.

5 . The system of claim 4 , wherein the coil is disposed radially outward of the pitot cavity.

6 . The system of claim 5 , wherein the coil has a varying pitch along an axis of the pitot cavity.

7 . The system of claim 1 , wherein the member is a pitot tube having a support, a static cavity, and a pitot cavity, the anti-icing portion including an anti-icing heating surface disposed proximate a leading edge of the support.

8 . The system of claim 1 , wherein the member is a pitot tube having a support, a static cavity, and a pitot cavity, the pitot tube configured to be disposed on an exterior of an aircraft, the power supply configured to be disposed in a pressurized area of an interior of the aircraft.

9 . The system of claim 1 , wherein the member is a pitot tube having a support, a static cavity, and a pitot cavity, the pitot tube configured to be disposed on an exterior surface of an aircraft, wherein the power supply is disposed on an opposing interior surface of the aircraft.

10 . The system of claim 1 , wherein the member is a pitot tube having a support, a static cavity, and a pitot cavity, the pitot tube configured to be disposed on an exterior of an aircraft, wherein the system further comprises an inverter inside the pitot tube, the inverter in electrical communication with a direct current (DC) input.

11 . A method comprising:
providing a member including an anti-icing portion; inductively coupling a coil to the anti-icing portion of the member; and coupling a coil to a power supply, the power supply configured to provide voltage to the coil, wherein the coil emits electromagnetic energy responsive to power supplied by the power supply, wherein, responsive to the electromagnetic energy, eddy currents are generated in the anti-icing portion that provide heating of the anti-icing portion.

12 . The method of claim 11 , wherein the anti-icing portion includes an anti-icing heating surface comprising a smart suscepting alloy.

13 . The method of claim 12 , wherein providing the member includes at least one of vapor depositing the smart suscepting alloy on the anti-icing portion, electroplating to deposit the smart suscepting alloy, or embedding the smart suscepting alloy in the anti-icing portion.

14 . The method of claim 11 , wherein the member is a pitot tube having a support, a static cavity, and a pitot cavity, the wherein the anti-icing portion comprises an anti-icing heating surface, the method comprising disposing the anti-icing heating surface disposed proximate a boundary of the pitot cavity.

15 . The method of claim 15 , further comprising disposing the coil radially outward of the pitot cavity.

16 . The method of claim 15 , further comprising providing a variable pitch in the coil.

17 . The method of claim 11 , wherein the member is a pitot tube having a support, a static cavity, and a pitot cavity, the anti-icing portion including an anti-icing heating surface, the method comprising disposing the anti-icing heating surface proximate a leading edge of the support.

18 . A method comprising:
providing a voltage to a coil from a power supply; generating an eddy current responsive to the voltage in an anti-icing portion of a member inductively coupled to the coil; and providing heating to de-ice a surface of an aircraft via the eddy current.

19 . The method of claim 18 , wherein the anti-icing portion includes an anti-icing heating surface comprising a smart suscepting alloy.

20 . The method of claim 18 , wherein the member is a pitot tube having a support, a static cavity, and a pitot cavity, the anti-icing portion including an anti-icing heating surface disposed proximate a boundary of the pitot cavity.

21 . The method of claim 18 , wherein the member is a pitot tube having a support, a static cavity, and a pitot cavity, the anti-icing portion including an anti-icing heating surface disposed proximate a leading edge of the support.

Assignees

• Boeing Co

Inventors

• Dichek Daniel Jonathan Gunnar
• Khozikov Vyacheslav
• Morrow Jonathan

Classifications

• B64D43/02

  for indicating aircraft speed or stalling conditions · CPC title

• B64D15/12 Primary

  by electric heating (heating arrangements specially adapted for transparent or reflecting areas H05B3/84) · CPC title

• G01P5/165 Primary

  Arrangements or constructions of Pitot tubes · CPC title

• G01P1/00

  Details of instruments · CPC title