Method and device for forming mixture gas in direct injection type internal combustion engine
US4685432A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1984 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Oct 30, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and device for forming mixture gas for a direct fuel injection type internal combustion engine, which has a piston with a recess forming a combustion space, air intake means with swirling means for switching intake air to be supplied into the combustion chamber, and an intermittent swirl injector nozzle having at least one tangential passage for swirling fuel supplied through fuel supplying means to the combustion chamber, to jet the fuel in conical form to the swirling intake air, to form a mixture gas, and which comprises the steps of supplying swirling intake air into the combustion space, the swirling intake air having a swirl speed in conformance to the speed of the internal combustion engine, and spraying fuel from the swirl injection nozzle onto the swirling intake air in the combustion space at a fuel spray angle varied in response to the engine speed, thereby controlling the spray travel distance of the fuel and allowing the fuel to float in the combustion space without being stuck onto a wall of the combustion space under a wide range of operating conditions of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.