Vapor storage canister with volume change compensator
US5098453A · kind A · utility
19Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1991 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | May 2, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M25/0854
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A bed of activated carbon granules is maintained tightly packed within a fuel vapor storage canister housing by a specially designed compensator. A pair of spring loaded, nested trays move axially relative to one another and push continually into the lower face of the carbon bed to keep it packed. The trays also define a continuous, self maintaining gap that is smaller than the expected carbon granule size, preventing them from falling out in spite of the swelling of the canister housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.