Evaporated fuel processing apparatus for internal combustion engine and method
US6817346B2 · kind B2 · utility
6Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Jul 21, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0606
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an evaporated fuel processing apparatus, a fuel tank is communicated with a canister via a vapor passage. A canister temperature sensor is disposed around a purge port of the canister for detecting a temperature of the canister. When a large quantity of gas is supplied upon supply of the fuel to flow from the fuel tank to the canister, the peak value of the canister temperature is detected. The fuel adsorbing state within the canister is estimated on the basis of the canister temperature obtained subsequent to detection of the peak value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.