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. 27, 2026
Filed:
Jan. 09, 2025
Pratt & Whitney Canada Corp., Longueuil, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A method is provided for operating an aircraft engine in a fire-induced emergency shutdown state. An indication of a fire in a fire zone of the aircraft engine is received. In response to the receiving the indication of the fire in the fire zone of the aircraft engine, an emergency shutdown sequence of the aircraft engine is initiated. In response to the initiating the emergency shutdown sequence of the aircraft engine, an auxiliary oil pump positioned outside of the fire zone of the aircraft engine and distinct from a main oil pump of the aircraft engine is activated. Once activated, the auxiliary oil pump circulates oil through a main oil conduit of the aircraft engine.