US 9,429,482 B2 · Total air temperature probe with low frontal projected area

Abstract

Deicing performance of a total air temperature (TAT) probe may be improved by reducing the size of a frontal projected area upstream of an inertial bend of the TAT probe. In accordance with various embodiments, a TAT probe may comprise an airflow inlet having a first surface substantially parallel to an incoming airflow, a primary airflow passage through the TAT probe from the airflow inlet to a primary airflow outlet, and a total air temperature sensor assembly disposed within a sensor flow passage. In various embodiments, the sensor flow passage may be oriented perpendicular to a mounting surface of the TAT probe. Further, the first surface may be perpendicular to the sensor flow passage. In various embodiments, the airflow inlet may have a second surface that is inclined relative to the first surface to help facilitate a desirable pressure gradient and boundary bleed passage function.

Claims9

Dependent claims

A total air temperature (TAT) probe comprising:

a mounting surface extending in a longitudinal direction from a forward end to an aft end of the TAT probe;
a primary airflow passage through the TAT probe;
a primary airflow outlet defining an outlet to the primary airflow passage;
a sensor flow passage in fluid communication with the primary airflow passage;
an airflow inlet defining an inlet to the primary airflow passage and having a first surface extending in a direction that is within four degrees of a direction of an airflow received by the airflow inlet and within four degrees of the longitudinal direction of the mounting surface and a second surface inclined relative to the first surface such that the first surface and the second surface converge from the airflow inlet towards sensor flow passage;
and
a total air temperature sensor assembly disposed within the sensor flow passage,
wherein the first surface is positioned nearer to the mounting surface than the second surface.

5 more elements

Dependencies are inferred from the claim text.

Total air temperature probe with low frontal projected area

Life of this patent

Total air temperature probe with low frontal projected area

Life of this patent

Abstract

Claims9