High efficiency vapor storage canister
US4894072A · kind A · utility
46Cited by
12References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1989 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Mar 27, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2025/0863
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A canister is divided into small and large bed portions, with the small portion being loaded separately with just diurnal vapors so that it can be purged with a greater efficiency. At fuel fill, both bed portions are loaded simultaneously with a proportion of fuel fill vapors keyed to their own volume ratio, so that an effective capacity equal to the sum of the two is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.