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:
Jan. 02, 2024
Filed:
Jan. 12, 2023
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Jasmin Turcotte, Mont-Saint-Hilaire, CA;
Ioan Sabau, Montréal, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/26 (2006.01); F02C 9/26 (2006.01);
U.S. Cl.
CPC ...
F02C 7/26 (2013.01); F02C 9/26 (2013.01); F05D 2260/85 (2013.01); F05D 2260/99 (2013.01); F05D 2270/70 (2013.01);
Abstract
Methods and systems for starting an aircraft gas turbine engine are described. The method comprises, in a first phase of a startup upon receipt of a start request, modifying a first set of engine control parameters to cause light-up; in a second phase of the startup, modifying a second set of engine control parameters to set conditions for light-around; and in a third phase of the startup, modifying a third set of engine control parameters to propagate a flame around a combustor of the gas turbine engine.