Passive valve and resonator assembly for vehicle exhaust system
US8955641B2 · kind B2 · utility
2Cited by
10References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2013 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Apr 12, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2260/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust system includes first and second exhaust components with an inter-pipe that fluidly connects an outlet of the first exhaust component to an inlet of the second exhaust component. A passive valve is mounted within the inter-pipe. The second exhaust component defines an internal cavity that is at least partially packed with a high frequency absorption material and cooperates with the passive valve to effectively attenuate low and high frequency noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.