Fuel injection apparatus, fuel injection method and internal combustion engine
US6634338B1 · kind B1 · utility
10Cited by
5References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 20, 2000 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/2079
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electromagnetic fuel injector is provided with a first coil having a large rate of change in time of magnetomotive force and a second coil having a smaller rate of change in time of magnetomotive force than the first coil. During a valve opening operation at the time of opening the valve, current is passed through at least the first coil, and then current of a smaller current value than in the opening operation is caused to flow so as to hold the valve open, using the first and second coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.