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. 31, 1990
Filed:
Nov. 25, 1988
Applicant:
Inventors:
Russell E Motsinger, Cincinnati, OH (US);
John W Vdoviak, Marblehead, MA (US);
Assignee:
General Electric Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64F / ; F02K / ;
U.S. Cl.
CPC ...
181213 ; 181286 ; 181288 ; 181292 ; 181293 ;
Abstract
An annular acoustic liner for gas turbine engine ducts comprising Helmholtz resonator chambers wherein the resonator's turnable neck length and chamber depth lie on a surface which is concentric to the liner centerline. In another embodiment of the invention the liner is generally rectangular and the resonator's turnable neck length and chamber depth lie on a surface which is parallel to the duct flow. A more particular embodiment of the invention the duct is an afterburner duct which may have a rectangular or circular cross section.