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:
Aug. 04, 2026
Filed:
Aug. 13, 2021
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
Richard Freer, Saint-Basile-le-Grand, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 15/10 (2006.01); B64D 27/33 (2024.01); B64D 31/18 (2024.01); F02C 7/22 (2006.01); F02C 9/28 (2006.01); F02K 5/00 (2006.01);
U.S. Cl.
CPC ...
F02K 5/00 (2013.01); B64D 27/33 (2024.01); B64D 31/18 (2024.01); F01D 15/10 (2013.01); F02C 7/22 (2013.01); F02C 9/28 (2013.01); F05D 2220/323 (2013.01); F05D 2220/76 (2013.01); F05D 2270/052 (2013.01); F05D 2270/3013 (2013.01); F05D 2270/304 (2013.01);
Abstract
In accordance with at least one aspect of this disclosure, there is provided a method of accelerating a gas turbine engine. The method includes adding torque to a core of the gas turbine engine to accelerate rotation of the core by controlling fuel flow to a plurality of fuel injectors of the gas turbine engine. The method also includes adding torque to the core by powering an electric machine that is operatively connected to the core. In embodiments, controlling fuel flow to the plurality of fuel injectors is based on feedback from the electric machine.