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:
Jun. 06, 2023
Filed:
Jun. 08, 2020
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
Dana Tomescu, Brampton, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 9/00 (2006.01); F01D 19/02 (2006.01); F02C 7/268 (2006.01); F01D 21/00 (2006.01); F01D 25/34 (2006.01);
U.S. Cl.
CPC ...
F02C 9/00 (2013.01); F01D 19/02 (2013.01); F01D 21/00 (2013.01); F01D 25/34 (2013.01); F02C 7/268 (2013.01); F05D 2220/323 (2013.01); F05D 2260/85 (2013.01); F05D 2270/303 (2013.01); F05D 2270/313 (2013.01); F05D 2270/44 (2013.01); F05D 2270/708 (2013.01);
Abstract
There is provided a rotor bow mitigation system and method for an aircraft engine. At least one value of at least one engine parameter prior to a shutdown of the engine is obtained, the at least one engine parameter comprising a first temperature internal to the engine. A second temperature external to the engine is measured and a motoring duration and a motoring interval for the engine are determined based on at least the first temperature and on the second temperature. Upon detecting a start indication for the engine, the engine is motored for the motoring duration and at the motoring interval.