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. 15, 2026
Filed:
Oct. 15, 2024
Pratt & Whitney Canada Corp., Longueuil, CA;
Andrea Henning, London, CA;
Philippe Beauchesne-Martel, Brossard, CA;
Louis Duranleau-Hendrickx, Montreal, CA;
Poi Loon Tang, Coquitlam, CA;
Ian Dizon, Montreal, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
In response to exiting from a non-full non-filling state of a secondary manifold of a gas turbine engine, the method of filling the secondary fuel manifold of the engine includes: setting at least one engine schedule limit based on a measured value of a scheduling parameter that is within a first range that corresponds to a non-full state of the secondary fuel manifold. The method includes determining whether the filling of the secondary fuel manifold is completed. The method includes adjusting the at least one engine schedule limit to control at least one operational parameter of the engine, in response to a determination that the filling of the secondary fuel manifold is completed.