Simulated spray penetrations agreed relatively well with measured spray penetrations. Unlike a multi-point fuel injection system MPFI , GDI injects highly pressurized gasoline directly into the combustion chamber through a common rail fuel line. A strong factor which drives continuous development is the need for more efficient, better performing, cleaner, and more environmentally friendly engines. The components need to be built with stronger materials, as they are required to withstand high temperatures and pressures. To decrease PM, fuel injectors with short spray-penetration are required. GDI helps to offer better fuel efficiency and reduced emissions with no compromise on power and engine output. Offers complete combustion of fuel, thus reducing emission levels.
Gasoline direct injection
When fuel is no longer being sprayed in the intake valves, small amounts of dirt from intake air and blowback carbon from the crankcase ventilation system cakes on the intake walls, even with air filters that prevent most of the dirt from entering the cylinder. Archived from the original on 27 September EnviroFit , a non-profit corporation sponsored by Colorado State University , has developed direct injection retrofit kits for two-stroke motorcycles in a project to reduce air pollution in Southeast Asia , using technology developed by Orbital Corporation of Australia. And what about gasoline nanoparticles particles? In , Renault introduced the 2. We are a group of automotive and truck technicians with hundreds of years of experience between us. Retrieved November 7,
What's so great about direct injection? (ABCs of Car Tech) - Roadshow
Part of the Automobile series. The buildup occurs because in most cars intake air is, frankly, kind of dirty -- even with air filters in place, modern exhaust gas recirculation systems and crankcase vent systems can add quite a bit of muck to the intake charge -- and without port injectors spraying gasoline and the detergents that it contains onto the valves, things can get pretty filthy over the course of many thousand miles. In Europe, however, nanoparticles from GDI will also be regulated and the same limit values will apply as for diesel previously 10x higher level was allowed for GDI. Use of combustion pre chambers and smart pressure injection at top dead center can still be perfected in serial hybrid configuration. Hot rod Lead sled Lowrider Street rod T-bucket.
What is direct injection? Autoweek explains
Description: Additionally, because a GDI system needs to be able to inject fuel into a pressurized combustion chamber, the fuel lines supplying the gasoline need to be even higher in compression. The million two-stroke taxis and motorcycles in that part of the world are a major cause. Hence, all other factors being equal, an FSI engine needs higher-capacity injectors to achieve the same power as a conventional engine. When fuel is no longer being sprayed in the intake valves, small amounts of dirt from intake air and blowback carbon from the crankcase ventilation system cakes on the intake walls, even with air filters that prevent most of the dirt from entering the cylinder. The technology has been around since the s for gasoline engines and is actually already in use in most diesel engines.