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:
Feb. 08, 2011
Filed:
Apr. 27, 2007
Eric H. Nesbitt, Duvall, WA (US);
Mark Yee, Everett, WA (US);
Ronen Elkoby, Los Angeles, CA (US);
Leonard J. Hebert, Kirkland, WA (US);
Thomas E. Alston, Bothell, WA (US);
Eric H. Nesbitt, Duvall, WA (US);
Mark Yee, Everett, WA (US);
Ronen Elkoby, Los Angeles, CA (US);
Leonard J. Hebert, Kirkland, WA (US);
Thomas E. Alston, Bothell, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
An arcuate or semi-circumferential shield in the shape of a visor that is adapted to be secured to an external surface of a nozzle housing of a jet nozzle to attenuate jet noise generated by the jet nozzle. The shield may be fixedly secured to the nozzle housing or movably supported so that it can be moved between retracted and deployed positions. When used as a fixedly mounted component, or when positioned in its deployed position, a downstream edge of the shield extends past a downstream edge of the nozzle housing and the shield is spaced apart from an outer surface of the nozzle housing to form a channel therebetween. The shield is preferably orientated at approximately a bottom dead center of the nozzle housing. The shield operates to attenuate jet installation noise, and particularly jet installation noise experienced during the takeoff phase of flight of a jet aircraft, as well as to reduce jet installation noise that would otherwise propagate forwardly toward the cockpit of the aircraft.