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. 07, 2025
Filed:
Aug. 26, 2019
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Nicolas Des Roches-Dionne, Longueuil, CA;
Sylvain Lamarre, Boucherville, CA;
Alexandre Charest, Montreal, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64D 31/06 (2024.01); B64D 27/10 (2006.01); F02C 9/28 (2006.01); B64C 11/30 (2006.01); F02C 9/44 (2006.01); F02C 9/58 (2006.01);
U.S. Cl.
CPC ...
F02C 9/28 (2013.01); B64D 31/06 (2013.01); F02C 9/44 (2013.01); F05B 2270/1031 (2013.01); F05D 2270/02 (2013.01); F05D 2270/051 (2013.01); F05D 2270/052 (2013.01); F05D 2270/304 (2013.01); F05D 2270/335 (2013.01);
Abstract
There is provided a method and system for operating a turboprop engine of an aircraft. When a resulting value for Ng is between at least one upper limit and at least one lower limit, the output power is governed as a function of the target power. When the resulting value for Ng is on or outside of the at least one upper limit and the at least one lower limit, the output power is governed as a function of the maximum Ng and the minimum Ng.