Summary:
Fuel injection system for diesel engines is a mechanical system that uses an intake air control valve to supply air to the engine. The intake air control valve is actuated by an electrical solenoid, and the solenoid then passes the air to the intake manifold of the engine. The engine has a fuel injector that pumps fuel through the intake manifold and into the combustion chamber. The fuel then mixes with the air to create a combustible mixture.
The modern fuel injection system has replaced the old carburetor system used in cars and other engines in the past. This new system is much more efficient and produces fuel savings in terms of fuel economy, as the mixture is more precisely controlled and the air-fuel ratio can be adjusted more accurately.
The main components of a fuel injection system are the fuel injectors, the fuel pump, the fuel pressure regulator, the inlet air temperature sensor, the crank angle sensor, the exhaust gas recirculation valve, and the intake manifold. The fuel injectors are responsible for distributing the fuel evenly throughout the engine, and they control the rate at which fuel is injected into the cylinders. The fuel pump draws in the fuel from the fuel tank and delivers it to the injectors at the desired pressure. The fuel pressure regulator maintains the required pressure throughout the system.
The inlet air temperature sensor measures the air temperature entering the engine, while the crank angle sensor detects if the cylinder is ready to fire. The exhaust gas recirculation valve is used to redirect exhaust gas back into the intake manifold, which helps to reduce emissions. Finally, the intake manifold distributes the air-fuel mixture to each cylinder, allowing the engine to combust.
A fuel injection system also includes an electronic control unit, or ECU, that is responsible for controlling the whole system. This unit acts as a computer, controlling the fuel injectors, monitors the performance of the engine and regulates the fuel pressure. This allows the engine to run efficiently, with the correct air-fuel mixture and without any of the dangerous side effects associated with carburetors.
Overall, a fuel injection system for a diesel engine provides improved performance, increased fuel efficiency and decreased emissions. The new system is more accurate, as it can be adjusted more accurately to give the exact air-fuel mixture and fuel pressure desired. This means that fuel savings can be seen and that car owners can have peace of mind when it comes to their engines performance and their own fuel efficiency.
