Helmholtz resonator
US6792907B1 · kind B1 · utility
42Cited by
24References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2003 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Mar 4, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/32272
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A continuously variable Helmholtz resonator for a vehicle air intake system having a vibratory input to the resonator wall to dynamically adjust the cancellation frequency for time-varying acoustical signals, and at least one of mean resonator volume control, mean resonator neck length control, and mean resonator neck diameter control whereby control of both the dynamic and the mean properties of the resonator provides a wide-tuning spectrum and facilitates canceling of time-varying acoustical signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.