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:
May. 09, 2023

Filed:

Oct. 31, 2019
Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventors:

Philippe Beauchesne-Martel, Brossard, CA;

Stephen Mah, Brossard, CA;

Keith Morgan, Westmount, CA;

Patrick Manoukian, Saint-Laurent, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 6/20 (2006.01); B64D 31/06 (2006.01); F02C 6/02 (2006.01); F02C 9/00 (2006.01);
U.S. Cl.
CPC ...
F02C 6/20 (2013.01); B64D 31/06 (2013.01); F02C 6/02 (2013.01); F02C 9/00 (2013.01); F05D 2220/323 (2013.01); F05D 2220/329 (2013.01); F05D 2270/11 (2013.01); F05D 2270/70 (2013.01);
Abstract

Methods and systems for operating a rotorcraft comprising a plurality of engines are provided. A request to enter into an asymmetric operating regime (AOR), in which at least one active engine of the plurality of engines is operated in an active mode to provide motive power to the rotorcraft and at least one standby engine of the plurality of engines is operated in a standby mode to provide substantially no motive power, is obtained. Engine usage data for the plurality of engines, including at least one first engine and at least one second engine, is determined. Based on the engine usage data, one of the at least one first and second engines is operated as the at least one active engine for the AOR, and the other one of the at least one first and second engines is operated as the at least one standby engine for the AOR.


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