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:
Oct. 09, 2018
Filed:
Sep. 03, 2014
Applicant:
The Boeing Company, Chicago, IL (US);
Inventors:
David F. Cerra, Woodinville, WA (US);
Paul Robert Tretow, Mukilteo, WA (US);
Robert H. Willie, Bothell, WA (US);
Abhishek Sahay, Everett, WA (US);
Assignee:
The Boeing Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02K 1/48 (2006.01); B64D 33/04 (2006.01); F02K 1/34 (2006.01); F02K 1/46 (2006.01); B64C 21/10 (2006.01); F02K 3/04 (2006.01); F02K 3/06 (2006.01);
U.S. Cl.
CPC ...
F02K 1/48 (2013.01); B64C 21/10 (2013.01); B64D 33/04 (2013.01); B64D 33/06 (2013.01); F02K 1/46 (2013.01); B64C 2230/08 (2013.01); B64C 2230/14 (2013.01); F02K 3/04 (2013.01); F02K 3/06 (2013.01); F05D 2250/181 (2013.01); F05D 2250/182 (2013.01); F05D 2250/183 (2013.01); F05D 2250/184 (2013.01); F05D 2250/294 (2013.01); Y02T 50/671 (2013.01);
Abstract
A core cowl for a turbofan engine may include a plurality of valleys formed in an outer surface of the core cowl. Each valley may include a convex portion upstream of a concave portion, and may be configured to disrupt a shock cell exiting a fan nozzle of the turbofan engine. Associated methods for reducing turbofan engine noise are also described.