Fuel feed system for a spark-ignition internal combustion engine and a method of operating such an internal combustion engine
US6314940A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2000 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Mar 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a fuel feed system for a spark-ignition internal combustion engine, which system has at least a first injection valve, which is arranged in or on a cylinder head and to which fuel is fed under pressure for discharging directly into a combustion chamber of the internal combustion engine, at least one further injection valve is provided in an engine intake passage to discharge, in certain operating ranges of the internal combustion engine, fuel into the intake passage of the internal combustion engine in addition to the discharge of the fuel of the first injection valve into the cylinder, and the first injection valve is designed for fuel injection volume lower than that required for full power operation of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.