Electromagnetic system fuel injection apparatus an internal combustion engine having an electromagnetic system fuel injection apparatus, and a drive circuit of an electromagnetic system fuel injection apparatus
US6332453A · kind A · utility
7Cited by
5References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 23, 1999 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Dec 23, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M51/005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Using a control coil having a high response characteristic suited to valve opening and a hold coil suited to a hold to valve open during fuel injection using a small current, during the valve opening time, a high voltage is applied to the control coil suited to the valve opening operation and, during the time the valve is to be held open a low and stabilized voltage is applied to the hold coil. In a fuel injection apparatus, drive manner employed during a valve opening time and a valve hold time is optimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.