Acoustic air duct and air extraction system including a plurality of channels having an expansion chamber
US10532631B2 · kind B2 · utility
0Cited by
26References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2017 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Aug 31, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/006
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air extraction system for a motor vehicle includes a trim panel inlet, an air extractor and an acoustic air duct extending from the trim panel inlet to the air extractor. The acoustic air duct includes an outer wall defining an elongated internal airflow passageway and a plurality of channels. Those channels extend along the airflow passageway within the outer wall. At least one of the channels has an expansion chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.