Fuel injection system for single or multiple cylinder internal combustion engines
US3990413A · kind A · utility
Inventor
Key dates
| Filing date | Feb 13, 1974 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Feb 13, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection system for single or multiple cylinder internal combustion engines comprises two fuel injection valves for each cylinder of an engine. One fuel injection valve operates to inject a principal volume of fuel and the other a secondary volume of fuel into said cylinder. The two injection valves are fed by a plunger which is reciprocable in the working chamber of a pump body. The working chamber of the pump body communicates with a fuel admission duct, a delivery duct for the delivery of a principal fuel volume to the one fuel injection valve and a delivery duct for the delivery of a secondary fuel volume to the other fuel injection valve in such a manner that the duct for the delivery of the principal fuel volume is covered by the plunger after the same has completed a predetermined part of its stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.