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:
Jul. 27, 2010
Filed:
Jun. 05, 2007
Mark L. Sloan, Newcastle, WA (US);
Edward C. Marques, Issaquah, WA (US);
Matthew D. Moore, Everett, WA (US);
William J. Bigbee-hansen, Renton, WA (US);
Mark L. Sloan, Newcastle, WA (US);
Edward C. Marques, Issaquah, WA (US);
Matthew D. Moore, Everett, WA (US);
William J. Bigbee-Hansen, Renton, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
An aircraft includes at least one turbofan engine assembly having a shrouded core engine, a short nacelle surrounding a fan and a forward portion of the core engine, and a fan exhaust duct through the nacelle. A mixer duct shell is positioned substantially coaxial with the engine shroud and extends forwardly into the fan duct to provide an interstitial mixer duct between the mixer duct shell and the core engine shroud. The aft portion of the mixer duct shell extends over a turbine exhaust frame, an attached mixer (if included), and a tail cone exhaust plug. The mixer duct shell can reduce noise and plume exhaust heat radiated from aircraft turbofan engines.