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. 28, 2021
Filed:
Sep. 29, 2017
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Ninad Joshi, Brampton, CA;
Sid-Ali Meslioui, Brossard, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 9/50 (2006.01); F02C 6/08 (2006.01); F02C 9/52 (2006.01); F02C 9/18 (2006.01); F23R 3/26 (2006.01);
U.S. Cl.
CPC ...
F02C 9/50 (2013.01); F02C 6/08 (2013.01); F02C 9/18 (2013.01); F02C 9/52 (2013.01); F23R 3/26 (2013.01); F05D 2270/03 (2013.01); F05D 2270/08 (2013.01); F05D 2270/14 (2013.01); F23R 2900/00013 (2013.01);
Abstract
A method for operating a gas turbine engine comprises providing fuel flow and compressed airflow to a combustor with a fuel-to-air ratio, the compressed airflow being from a compressed air source; detecting at least one parameter indicative of the fuel-to-air ratio being below a predetermined value; and bleeding compressed air from the compressed air source when the at least one parameter indicative of the fuel-to-air ratio is below the predetermined value to increase the fuel-to-air ratio to at least the predetermined value.