Exhaust system with external helmholtz resonator and associated method
US7870930B2 · kind B2 · utility
4Cited by
51References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2005 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Apr 29, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N1/089
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust system comprises a muffler and a Helmholtz resonator. The muffler comprises an exhaust inlet aperture for receiving exhaust gas into the muffler, an exhaust outlet aperture for discharging exhaust gas from the muffler, and a resonator aperture. The Helmholtz resonator is at least partially external to the muffler and in acoustic communication with the resonator aperture. An associated method is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.