Secondary acoustic attenuator for vehicle
US6808045B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2002 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Nov 27, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S454/906
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An acoustic barrier systems that reduces the amount of noise entering the passenger compartment of a vehicle includes a secondary acoustic attenuator that extends from a primary acoustic barrier to a vehicle component case to envelop space around a conduit passing from the engine compartment to the component case. In one embodiment, the secondary acoustic attenuator extends from the primary acoustic barrier to the component case, with the secondary acoustic attenuator enveloping space around the conduit between the vehicle component case and the primary acoustic barrier. In another embodiment, the secondary acoustic attenuator is hingedly connected to the primary acoustic barrier to allow the secondary acoustic attenuator to be pivoted, from an orientation that allows installation of the vehicle component case, to another orientation wherein the secondary acoustic attenuator engages the vehicle component case to envelop space around the conduit between the vehicle component case and the primary acoustic barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.