The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2019
Filed:
Sep. 03, 2015
Honeywell International Inc., Morristown, NJ (US);
Gregory J. Chapman, Scottsdale, AZ (US);
HONEYWELL INTERNATIONAL INC., Morris Plains, NJ (US);
Abstract
A system and method for calculating aircraft total air temperature from bypass flow temperature in a turbofan gas turbine engine having a bypass flow duct includes sensing aircraft speed (M), sensing engine fan speed (N), sensing core engine speed (N), and sensing bypass air flow temperature (T) in the bypass flow duct. Total air temperature (TAT) is calculated as a function of the sensed aircraft speed, the sensed engine fan speed, the sensed core engine speed, and the sensed bypass air flow temperature. In some embodiments, fan bleed airflow is determined, and a correction is applied to the sensed bypass airflow temperature, and aircraft total air temperature (TAT) is further based on the corrected bypass airflow temperature.