Metering device for air assisted fuel injection
US5662083A · kind A · utility
2Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1996 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Oct 9, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86928
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an engine air assisted fuel injection system, it is desirable to provide a first range of air flow during engine idle and at low loading conditions. At greater engine speeds and higher loading conditions, a substantially greater second range of air flow is desired. This flow characteristic is achieved by the subject air metering device having dual valve members mounted on an axially positionable shaft. The valves are mounted so that initial movements of the shaft opens only one valve to provide flows within the first range. Further movement of the shaft then opens the second valve to provide flows within the second range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.