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:
Nov. 05, 2024
Filed:
Sep. 23, 2020
Rolls-royce Deutschland Ltd & CO KG, Blankenfelde-Mahlow, DE;
Itp Next Generation Turbines S.l., Zamudio, ES;
Christoph Richter, Blankenfelde-Mahlow, DE;
Adolfo Serrano González, Madrid, ES;
ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, Blankenfelde-Mahlow, DE;
ITP NEXT GENERATION TURBINES S.L., Zamudio, ES;
Abstract
The invention regards an acoustic liner which comprises: a facing sheet that comprises holes, the facing sheet having a porosity and a facing sheet thickness, a backing sheet, and a plurality of cells arranged between the facing sheet and the backing sheet, the cells having a cell depth and each cell defining a cavity. A plurality of internal necks are provided that extend from the inner side of the facing sheet towards the backing sheet, each internal neck being located around a hole of the facing sheet, thereby extending the longitudinal length of the hole. The invention further regards a gas turbine engine with such acoustic liner.