Motor vehicle hydrocarbon trap and method
US9945335B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 2012 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Aug 15, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49229
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the invention provide an apparatus for damping or attenuating acoustic vibrations in an air induction system of a motor vehicle, the apparatus defining a passageway through which induction air may be drawn to an engine of the vehicle, the apparatus comprising: damping means, the damping means being provided around the passageway for damping or attenuating acoustic vibrations in the induction air; and hydrocarbon trapping means, the hydrocarbon trapping means comprising a sheet of trapping material provided around at least a portion of the passageway, the trapping means being arranged to provide a flow-past hydrocarbon trap for trapping hydrocarbon vapors entering the passageway from the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.