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:
Jul. 16, 2019
Filed:
May. 10, 2017
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Sylvain Lamarre, Boucherville, CA;
Pierre Alexandre, St-Jean-sur-Richelieu, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/26 (2006.01); F02C 9/28 (2006.01); B64D 27/16 (2006.01); F01D 19/00 (2006.01);
U.S. Cl.
CPC ...
F01D 19/00 (2013.01); B64D 27/16 (2013.01); F02C 7/26 (2013.01); F02C 9/28 (2013.01); F05D 2220/323 (2013.01); F05D 2260/85 (2013.01); F05D 2270/04 (2013.01);
Abstract
Herein provided are methods and systems for setting an acceleration schedule for engine start of a gas turbine engine. A rotational acceleration measurement of the engine after the engine is energized in response to a start request is obtained. The rotational acceleration measurement of the engine is compared to an acceleration band having a maximum threshold and a minimum threshold. An acceleration schedule is determined based on a position of the rotational acceleration measurement of the engine in the acceleration band.