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:
Aug. 19, 2025
Filed:
Dec. 06, 2023
The Boeing Company, Arlington, VA (US);
Charles William Rust, Seattle, WA (US);
THE BOEING COMPANY, Arlington, VA (US);
Abstract
An engine of an aircraft comprising an engine core that produces thrust to propel the aircraft. A fan duct extends along a length of the engine core and is positioned between an engine core nacelle and a fan nacelle with the fan duct. A thrust reverser is positioned along the fan duct and has blocker doors and drag links. The thrust reverser is positionable between an open position and a closed position. The open position locates the blocker doors for the air to move along the fan duct and exit at the nozzle exit. The closed position locates the blocker doors across the fan duct to direct the air out of the fan duct through an opening in the fan nacelle. An acoustic attenuation system is mounted in the fan duct and positioned between the thrust reverser and the nozzle exit with the acoustic attenuation system configured to reduce noise caused by fan blade-pass frequency moving through the fan duct.