Acoustically damped component
US8684133B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2012 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Aug 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/172
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Acoustically damped component for a vehicle, an engine, a transmission or a vehicle trim panel, includes a flat basic body provided on at least one side with a rib structure. The ribs of the rib structure form chambers which are arranged irregularly on at least one region of the component, which has a resonant frequency of from 200 to 1000 Hz. The chambers are configured irregularly in such a way that chambers of the component have different dimensioning and/or geometry in comparison with adjoining chambers, such that emitted airborne sound can be reduced and/or eradicated. A response to a transient excitation of at least two part areas of that surface of the component which is provided with the chambers having a correlation of from 0.5 to 0.85, preferably of from 0.6 to 0.7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.