Hybrid material pitot tube

• US 9,719,820 B1
• Filed: 04/05/2016
• Issued: 08/01/2017
• Est. Priority Date: 01/29/2016
• Status: Active Grant

• Current Assignee: Goodrich Aerospace Services Private Limited (Rtx Corporation), Rosemount Aerospace, Inc. (Rtx Corporation)
• Original Assignee: Goodrich Aerospace Services Private Limited (Rtx Corporation), Rosemount Aerospace, Inc. (Rtx Corporation)
• Inventors: Jacob, Robin, Mahapatra, Guru Prasad, Johnson, Paul Robert
• Primary Examiner(s): Thompson, Jewel V
• Application Number:
  US15/090,804
• Publication Number:
  US 20170219397A1
• Time in Patent Office: 483 Days
• Field of Search: 7386165, 415 88, 277314
• CPC Class Codes: G01F 1/46 Pitot tubes
• CPC Class Codes: G01F 15/14 Casings, e.g. of special material
• CPC Class Codes: G01P 5/165 Arrangements or constructions of Pitot tubes

Abstract

A pitot tube includes a substantially cylindrical body portion having an interior defining a flow passage and a tip portion extending along a pitot tube axis from the body portion. The tip portion includes a disk, a tip cover and a high thermal conductive insert disposed between the disk and the tip cover and in thermal contact with both.

Claims

1. A pitot tube comprising:

a substantially cylindrical body portion having an interior defining a flow passage; and

a tip portion extending along a pitot tube axis from the body portion, the tip portion including;

a disk;

a tip cover; and

a high thermal conductive insert disposed between the disk and the tip cover and in thermal contact with both.

2. The pitot tube of claim 1, wherein the high thermal conductive insert is formed of graphite or carbon graphite.

3. The pitot tube of claim 2, wherein the disk and tip cover are formed of nickel.

4. The pitot tube of claim 1, wherein the disk and tip cover are friction welded to each other.

5. The pitot tube of claim 4, wherein the disk is friction welded to the body portion.

6. The pitot tube of claim 1, further comprising:

one or more electrical coils comprising one or more coil wraps disposed at an interior of the body portion.

7. A pitot tube comprising:

a substantially cylindrical body portion having an interior defining a flow passage and having a tip extension extending therefrom; and

a tip portion extending along a pitot tube axis from the body portion, the tip portion including;

a high thermal conductive insert surrounding the tip extension; and

a tip cover covering the high thermal conductive insert.

8. The pitot tube of claim 7, wherein the high thermal conductive insert is formed of graphite or carbon graphite.

9. The pitot tube of claim 7, wherein the body portion and the tip cover are formed of nickel.

10. The pitot tube of claim 7, further comprising:

one or more electrical coils comprising one or more coil wraps disposed at an interior of the body portion.