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:
Feb. 11, 2025

Filed:

Feb. 14, 2024
Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventors:

Mert Cevik, Boucherville, CA;

James Robert Jarvo, Long Sault, CA;

Keith Morgan, Westmount, CA;

Elizabeth Gioia, Montréal, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 31/18 (2024.01); B64D 27/33 (2024.01);
U.S. Cl.
CPC ...
B64D 31/18 (2024.01); B64D 27/33 (2024.01);
Abstract

A method of operating a hybrid engine for an aircraft, the hybrid engine having a thermal engine and an electric motor. The method includes verifying, using an engine control unit of the hybrid engine, that a selected power level is under a predetermined threshold for operation of the hybrid engine in a sub-idle hybrid mode. The method further includes operating the hybrid engine in the sub-idle hybrid mode, using the engine control unit, by controlling the thermal engine to operate in a standby mode, and by controlling the electric motor to operate in an active mode wherein the electric motor provides a majority of a propulsive power to the aircraft, wherein in the standby mode the thermal engine operates in a sub-idle condition to provide at most minimal propulsive power to the aircraft.


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