Evaporative emissions filter
US7163574B2 · kind B2 · utility
9Cited by
62References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2004 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Mar 23, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An evaporative emissions filter for an engine air induction system. The evaporative emissions filter includes a hydrocarbon vapor-adsorbent member disposed within the air induction system. Hydrocarbon vapors present in the air induction system after engine shut-down are substantially retained in the adsorbent member until air flows through the air induction system after the engine starts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.