Evaporative fuel control canister containing absorbent swelling by absorbing liquid fuel
US5173095A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 11, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Sep 11, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2025/0863
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An evaporative fuel control canister for use in an internal combustion engine includes a canister main body having a vapor absorbing chamber and a liquid separate chamber. The vapor absorbing chamber has a first portion filled with a vapor absorbing material, and a second spatial portion. The liquid separate chamber has an expansible and contractible member containing a liquid absorbing material. The vapor absorbing chamber is adjacent to the liquid separate chamber in a ventilation state. The canister includes a vapor passage coupling a fuel tank and the liquid separate chamber, and a purge passage coupling the internal combustion engine and the liquid separate chamber. The purge passage has a first opening positioned in the expansible and contractible member, and a second opening positioned in the second spatial portion. The canister includes stopper members for maintaining a surface of the expansible and contractible member at a position which the extensible and contractible member does not reach the second opening so that the second spatial portion is always maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.