Apparatus for processing fuel vapor in internal combustion engine equipped with supercharger
US5979418A · kind A · utility
29Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A three-way valve is mounted in the middle of a bypass passage bypassing the upstream and downstream of a compressor, and a purge passage is connected to the three-way valve. When the negative throttle pressure is equal to or above a predetermined value (close to vacuum), the recirculation of the supercharged pressure is performed through the bypass passage. On the other hand, when the negative throttle pressure is below the predetermined value, the purging of the canister is performed on the upstream side of the compressor through the bypass passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.