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.

Date of Patent:
Aug. 19, 2025

Filed:

Aug. 22, 2022
Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventor:

Martin Drolet, Saint-Amable, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 21/00 (2006.01); G07C 5/08 (2006.01);
U.S. Cl.
CPC ...
F01D 21/003 (2013.01); G07C 5/0808 (2013.01); F05D 2220/323 (2013.01); F05D 2260/80 (2013.01);
Abstract

A system for a gas turbine engine includes an engine control system. The engine control system includes a processor and a non-transitory memory storing instructions, which instructions when executed by the processor, cause the processor to: obtain a current engine installation configuration for the gas turbine engine and the aircraft, determine an expected normalized value of the engine parameter based on the current engine installation configuration and one or more of a normalized engine power (SHPN) of the gas turbine engine, an engine inlet temperature, an airspeed, or an altitude, determine a fully deteriorated engine (FDE) value of the engine parameter using the expected normalized value of the engine parameter, determine a current value of the engine parameter for the gas turbine engine, and determine the engine operating margin for the engine parameter based on the FDE value of the engine parameter and the current value of the engine parameter.


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