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. 15, 2011
Filed:
May. 01, 2007
Applicant:
Thomas Alain Christian Vincent, Palaiseau, FR;
Inventor:
Thomas Alain Christian Vincent, Palaiseau, FR;
Assignee:
SNECMA, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
F02K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for attenuating acoustic noise from an exhaust nozzle of a turbojet is disclosed. The turbojet exhaust nozzle includes a central body spaced apart from an external casing, defining a gas exhaust channel therebetween. The central body includes a flexible sleeve within an external wall, defining at least one resonator cavity therebetween. The at least one resonator cavity is in fluid communication with the gas exhaust channel via a plurality of orifices through at least one upstream portion of the external wall. The at least one resonator cavity and plurality of orifices compose at least one Helmholtz resonator.