Temperature sensors

Patent metadata

Field	Value
Publication number	US-10006813-B2
Application number	US-201715588890-A
Country	US
Kind code	B2
Filing date	May 8, 2017
Priority date	Oct 22, 2013
Publication date	Jun 26, 2018
Grant date	Jun 26, 2018

Abstract

A temperature sensor includes a sensor body and a wedge extension. The sensor body extends from a sensor base to an opposed sensor tip along a longitudinal axis. The sensor body has a leading edge and opposed trailing edge. The sensor body also has an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage. The wedge extension is on the sensor body between the sensor tip and the sensor base on the leading edge of the sensor body.

First claim

What is claimed is:

1. A temperature sensor comprising:
a sensor body extending from a sensor base to an opposed sensor tip along a longitudinal axis and defining a leading edge and opposed trailing edge, wherein the sensor body defines an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage; and
a wedge extension defined on the sensor body between the sensor tip and the sensor base on the leading edge of the sensor body, wherein the wedge extension has a wedge angle and position relative to the sensor body, wherein at least a portion of the outlet is downstream of at least a portion of the wedge extension, relative to the leading edge and the trailing edge, to increase a pressure differential between the inlet and the outlet at Mach numbers 0.55 Mach or higher.

2. A temperature sensor as recited in claim 1 , wherein the wedge extension is configured to separate the leading edge into separate portions to reduce the size of ice accumulation on the sensor body.

3. A temperature sensor as recited in claim 1 , wherein the outlet includes a plurality of outlets defined in the sensor body.

4. A temperature sensor as recited in claim 1 , further comprising a temperature sensor disposed in the interior flow passage.

5. The temperature sensor of claim 1 , wherein the wedge extension is integrally and monolithically formed with the sensor body.

6. A temperature sensor comprising:
an airfoil body extending from an airfoil base to an opposed airfoil tip along a longitudinal axis, the airfoil body including a wedge extension integral to the airfoil body defined between the airfoil tip and the airfoil base, the airfoil body and wedge extension defining the leading edge of the airfoil body, wherein the airfoil body defines a trailing edge opposed to the leading edge and an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage, wherein the wedge extension has a wedge angle and position relative to the airfoil body, wherein at least a portion of the outlet is downstream of at least a portion of the wedge extension, relative to the leading edge and the trailing edge, to increase a pressure differential between the inlet and the outlet at Mach numbers 0.55 Mach or higher.

7. A temperature sensor as recited in claim 6 , wherein the airfoil body has a lower uninterrupted airfoil portion, a middle wedge portion, and a top uninterrupted airfoil portion.

8. A temperature sensor as recited in claim 6 , wherein the wedge extension is configured to separate the leading edge into separate portions to reduce the size of ice accumulation on the sensor body from what they would be with a single leading edge without a wedge extension.

9. A temperature sensor as recited in claim 6 , further comprising a temperature sensor disposed in the interior flow passage.

10. The temperature sensor of claim 6 , wherein the wedge extension is integrally and monolithically formed with the airfoil body.

Assignees

• Rosemount Aerospace Inc

Inventors

• Gmach Matthew J T
• Sable Robert E
• Otto John T
• Wigen Scott

Classifications

• G01K13/00

  Thermometers specially adapted for specific purposes · CPC title

• G01K1/22 Primary

  by means of fluid contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the fluid · CPC title

• G01K13/028 Primary

  for use in total air temperature [TAT] probes · CPC title