The benefits of fuel injection systems in automobiles are well documented and worth discussing. In the early days of automobile design and development the standard carburetor worked quite well and served an important purpose – to prepare and then deliver an air-fuel mixture to the engine for consumption in a metered and measured way.
A carburetor takes into account many variables such as fuel density, air temperature, atmospheric pressure and several other important factors in an effort to create the ideal air-fuel mixture so a car engine will perform at peak levels. However, a carburetor has its limitations and that is what led to the development of something known as fuel injection.
Air And Fuel Are Combined
Fuel injection is a process whereby exacting amounts of air and fuel are combined and then delivered via injectors either to each cylinder or to the intake manifold as a whole. The net result is improved engine performance and greatly improved efficiency with regard to the amount of fuel that is consumed while producing a given level of performance.
This process also has the added benefit of reducing harmful exhaust emissions. The typical fuel injection system gains its greatest advantage over a standard carburetor at higher speeds and higher RPMs. The main object in achieving these goals is to ensure that the combustion process occurs in as a complete way as possible.
Fuel Is Injected Continuously
Several versions of fuel injection are common in today’s cars including single point fuel injection, continuous fuel injection, multi-point fuel injection and gasoline direct injection. Single point injection is perhaps the simplest form of injection and requires the least amount of modification to an automobile’s fuel system.
Continuous injection is a system of injection whereby fuel is injected continuously into the intake manifold, while multi-point injection is identified by its ability to inject precise amounts of fuel into individual cylinders. The gasoline direct fuel injection process is unique in that the injection of the air-fuel mixture occurs directly within the combustion chamber of the engine.