Fuel vapor feed controlling apparatus for a lean burn type internal combustion engine
US6257218A · kind A · utility
5Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2000 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Feb 23, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel vapor feed controlling apparatus of a lean burn internal combustion engine suppresses either one of a rich misfire or a surge when fuel vapor is fed into the engine. A purge controlling unit controls an amount of fuel vapor fed from a fuel reservoir to the engine in response to an operational condition of the engine. A first compensation unit compensates the amount of fuel vapor such that an engine revolution speed of the engine may be identical with a target revolution speed. The purge controlling unit performs a purge control based on a compensation value compensated by the first compensation unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.