Fuel injection combustion technology
Gasoline direct injection combustion technologies (GDI) will be able to fuel internal combustion engine efficiency by 20%. This new technology-based technology applications originated in the 30's, but has so far failed to develop, only in the past two years, since the digital technology and the improvement of the performance of other systems before they do something to make this new concept.
At present, some car manufacturers are incorporating technology into the actual manufacture of GDI application process. For example, Mercury Marine company has developed for its larger engine, a double air to fuel the engine of direct injection combustion system. Since 1996, Japan's Mitsubishi Corporation have begun the development of GDI engines, Siemens and Renault two companies together to work for GDI technology to Renault Megane car. At the same time, Delphi also announced that he and Orbital Engine Corporation joint venture to develop a hybrid spark plugs and engine fuel injection system, which requires only a hole leading to the cylinder combustion chamber.
The initial idea developed direct injection technology, is due in most cases, the engine air-fuel ratio can be adjusted to the calculation method than using chemicals derived from 14.7:1 more rarefied state, rather than engine performance would be adversely affected. Its limitations, however, it is like this, lean gas mixture is difficult to ignite, but also the resulting corresponding emissions, the main ingredient is nitrogen oxides (NOX).
Using direct-injection technology, fuel mist of tiny droplets to enter the cylinder, rather than steam way. This also means that when the fuel into a combustible vapor droplets to absorb heat when the engine's cylinders actually played a cool role. This cooling effect reduces the engine's octane requirement, so its compression ratio can be increased. And as diesel fuel, as a higher compression ratio can improve fuel efficiency.
Another advantage of using GDI technology is its ability to accelerate the pace of oil and gas combustion gas mixture, which makes GDI engine and carburetor jet engine compared to the traditional, you can very well adapted to exhaust gas recirculation technology. For example, in Mitsubishi engine, when running idle, if the process of combustion instability, then the engine air-fuel ratio can be 40:1 to run very smoothly (if using exhaust gas recirculation EGR technology, then the engine air-fuel ratio can improve the to 55:1).
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