Vaporized fuel control apparatus for internal combustion engines
US4817576A · kind A · utility
89Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Nov 20, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/004
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vaporized fuel control apparatus for an internal combustion engine. Fuel vapor formed in the fuel tank during the refuelling period is adsorbed to a refuelling canister and fuel vapor formed in the fuel tank during the engine running period is adsorbed to a running canister. The canisters are controlled in a manner that the amount of the fuel vapor discharged into the intake system of the engine from the refuelling canister is smaller than that of the running canister.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.