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:
Sep. 19, 2023
Filed:
Jul. 12, 2021
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Sean McCarthy, Beaconshield, CA;
Jasraj Chahal, Lasalle, CA;
Philippe Beauchesne-Martel, Brossard, CA;
Roja Tabar, Longueuil, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 9/28 (2006.01); F01D 21/06 (2006.01); F01D 21/00 (2006.01); F01D 21/04 (2006.01); F02C 7/36 (2006.01);
U.S. Cl.
CPC ...
F02C 9/28 (2013.01); F01D 21/003 (2013.01); F01D 21/04 (2013.01); F01D 21/06 (2013.01); F02C 7/36 (2013.01); F05D 2220/323 (2013.01); F05D 2260/80 (2013.01); F05D 2270/09 (2013.01);
Abstract
A method is provided involving a turbine engine. During this method, data is received indicative of twist of a shaft of the turbine engine. The data is monitored over time to identity one or more reversal events while the turbine engine is operating, where each of the reversal events corresponds to a reversal in a value sign of the data. Shaft shear is identified in the shaft based on occurrence of N number of the reversal events.