Acoustic panel with active impedance control
US12392292B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Apr 27, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K1/827
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An acoustic system is provided that includes a face skin, a back skin and a cellular core arranged between the face skin and the back skin. The face skin includes a first member, a second member and a plurality of ports extending through the face skin. The first member includes a plurality of first perforations. The second member includes a plurality of second perforations and is configured to move along the first member. Each of the ports includes a respective one of the first perforations and a respective one of the second perforations. The cellular core includes a plurality of chambers. Each of the chambers extends between the face skin and the back skin. Each of the chambers is fluidly coupled with a respective one or more of the ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.