Hydrocarbon emission scavenger
US7708817B2 · kind B2 · utility
20Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2005 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Aug 17, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/66
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydrocarbon adsorber and a thermoplastic resin combined and formed to a porous scavenger for insertion into the air intake system of a motor vehicle engine. The resulting porous scavenger adsorbs volatile hydrocarbon molecules from raw fuel remaining in the air intake when the engine is shut off. The adsorbed molecules are then stripped or purged from the scavenger and reintroduced into the air intake when the engine is next started.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.