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. 15, 2019
Filed:
Mar. 31, 2017
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Yusuf Syed, Oakville, CA;
Michael Krynski, Waterdown, CA;
Antwan Shenouda, Mississauga, CA;
Frederic Giroux, St-Jean-sur-Richelieu, CA;
Ioan Sabau, Brossard, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 9/46 (2006.01); F02C 9/28 (2006.01);
U.S. Cl.
CPC ...
F02C 9/46 (2013.01); F02C 9/28 (2013.01); F05D 2270/021 (2013.01); F05D 2270/051 (2013.01);
Abstract
Herein provided are methods and systems for detecting an uncommanded or uncontrollable high thrust (UHT) event in an aircraft, comprising arming a UHT function, detecting a fuel flow error when an actual fuel flow minus a commanded fuel flow exceeds a first threshold, the fuel flow error indicative of a presence of excess thrust, detecting a UHT event based on excess thrust and as a function of a second threshold, upon detection of the fuel flow error, and accommodating the UHT event.