Exhaust valve combined with active noise control system
US8857561B2 · kind B2 · utility
6Cited by
12References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Oct 25, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N1/18
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A vehicle exhaust system includes at least one exhaust component that defines an exhaust passage from an engine to an exhaust outlet. An active noise attenuation component is associated with the exhaust component. A valve is positioned within the exhaust component downstream of the engine and upstream of the active noise attenuation component. The valve and active noise attenuation component cooperate with each other to control noise generated by the exhaust system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.