Evaporated fuel processing apparatus for an internal combustion engine
US5836291A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | May 22, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M25/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An evaporative fuel processing apparatus which can optimally process fuel gas according to navigation information or the like. This apparatus obtains future running information from a navigation system and further predicts an amount quantity of fuel vapor generated in a fuel tank (13) according to the running information. Further, the apparatus determines an amount of fuel vapor to be purged from a canister (14), namely, a valve opening of a purge control valve (142) so that an amount of fuel vapor adsorbed in the canister (14) is not more than a predetermined upper limit and that an amount of fuel adsorbed in the canister (14) after running is almost zero. Thus, an evaporation emission is reduced and the durability of the canister is prolonged by controlling the purge control valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.