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:
Dec. 31, 2024
Filed:
Jun. 30, 2023
Pratt & Whitney Canada Corp., Longueuil, CA;
James Robert Jarvo, Saint-Bruno-de-Montarville, CA;
Cedric Saintignan, Montreal, CA;
Joseph Daniel Maxim Cirtwill, Gravenhurst, CA;
Kian McCaldon, Orangeville, CA;
Marc-Andre Tremblay, Montréal, CA;
David Waddleton, Candiac, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
Methods and systems of operating a gas turbine engine in a low-power condition are provided. In one embodiment, the method includes supplying fuel to a combustor by supplying fuel to a first fuel manifold and a second fuel manifold of the gas turbine engine. The method also includes, while supplying fuel to the combustor by supplying fuel to the first fuel manifold: stopping supplying fuel to the second fuel manifold; and supplying pressurized air to the second fuel manifold to flush fuel in the second fuel manifold into the combustor and hinder coking in the second fuel manifold and associated fuel nozzles.