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:
Apr. 07, 2026
Filed:
Nov. 21, 2024
Pratt & Whitney Canada Corp., Longueuil, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
An aircraft engine having a centerline, has: an oil system including: a component located above the centerline and having an inlet and an outlet; an oil circuit interconnecting the components and including an input line connected to the inlet and an output line connected to the outlet, the input line defining an input U-shaped section, the output line defining an output U-shaped section; a valve connected on the input line or the output line and located between the component and a respective one of the input U-shaped section and the output U-shaped section; and an anti-siphon line connecting the input line to the output line and defining a flow path of a lesser flow circulating area of the input line and the output line, the input U-shaped section, the output U-shaped section, and the component located between connection points defined between the anti-siphon line and the input and output lines.