Internal combustion engine
US4034733A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1975 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | Mar 11, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention disclosed is an internal combustion engine of the type having a main combustion chamber for combustion of the lean mixture; a trap chamber for trapping therein the rich mixture; a spark plug for igniting the rich mixture in the trap chamber; and a fuel injection system including a first fuel injection nozzle opening at an intake passage to each cylinder for injecting the fuel toward the trap chamber during the suction stroke, a second fuel injection nozzle opening at a throttle body or an intake manifold for injecting the fuel during any one of strokes, and a fuel injection control device for controlling the injection timing and period of the first and second fuel injection nozzles. The positive and complete stratified combustion of the mixture, in which the fuel has been satisfactorily vaporized, may be ensured not only at during starting and during warming-up or during operation in cold weather but also under any other operating conditions without resulting in a slow engine response during the transition period and an undesirable non-uniform distribution of the mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.