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:
Mar. 14, 2023
Filed:
Aug. 27, 2019
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
Sean Durand, Brossard, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/262 (2006.01); F02C 9/26 (2006.01); F02C 7/236 (2006.01); F02C 3/06 (2006.01); F02C 9/28 (2006.01);
U.S. Cl.
CPC ...
F02C 9/26 (2013.01); F02C 3/06 (2013.01); F02C 7/236 (2013.01); F02C 7/262 (2013.01); F02C 9/28 (2013.01);
Abstract
Methods and systems of starting a gas turbine engine are provided. During startup, a fuel pressure associated with a primary fuel supply of the gas turbine engine is monitored. A low-pressure event for the primary fuel supply is detected when the fuel pressure falls below a predetermined threshold. Responsive to detecting the low pressure event, an electric backup boost pump is activated by an engine controller to provide fuel to the gas turbine engine.