Fuel injection system – a fuel supply system installed on modern gasoline engines to replace the outdated carburetor system. Engines with this system are called injector engines.
In the injector system, fuel injection into the airflow is performed by special injectors located either in place of the carburetor (intake manifold) – “mono injection”, or near the intake valve of each cylinder (usually structurally in the intake manifold) – “distributed injection” (aka multi-point “manifold”), or in the cylinder head, and the injection occurs in the combustion chamber – “direct injection”.
The main advantages of the injector system over the carburetor are as follows: significantly higher efficiency of the engine due to more accurate metering and atomization of fuel, precise control over the composition of the air-fuel mixture, stable engine operation in all operating modes, including at low speeds and with a large load on the engine.
The injector system also allows you to use fuel with a high octane rating and a higher content of additives that increase the efficiency of the engine. In addition, this system eliminates the need for a carburetor heater, which simplifies the design of the engine.
The disadvantages of the injector system include its complexity and high cost. In addition, this system is more demanding on the quality of fuel used.
The principle of operation of the injector system is based on the fact that the engine control unit (ECU) constantly monitors all operating parameters of the engine and, depending on them, calculates the amount of fuel required for a particular moment. This calculation is carried out taking into account the position of the accelerator pedal, engine speed, coolant temperature and other factors.
After that, a special injector delivers fuel to the intake manifold (in carburetor replacement systems) or directly into the cylinder (in direct injection systems). As a result, a correctly composed air-fuel mixture is obtained, which allows the engine to work most efficiently.
Thus, we can say that the injector system is a more modern and efficient way to supply fuel to an engine. However, it should be noted that this system is also more complex and expensive than a carburetor. Therefore, when choosing a car, you need to take into account not only the type of engine, but also the type of fuel system used.
How electronic fuel injection works – Video
Electric fuel injection is a system that injects fuel into an engine using electric pumps and sensors, instead of the traditional mechanical fuel pump. This system is more efficient and provides better engine performance.
The electronic fuel injection system consists of a fuel pump, an injector, and a control unit. The fuel pump supplies pressurized fuel to the injector, which sprays the fuel into the engine. The control unit monitors the engine’s speed and load, and tells the injector how much fuel to spray.
The electronic fuel injection system is more efficient than the traditional mechanical fuel pump because it can inject the exact amount of fuel that is needed for the current conditions. This means that the engine will run more efficiently and with less pollution.
If you have any questions about how electronic fuel injection works, feel free to ask in the comments section below. Thanks for reading!
Frequently Asked Questions (FAQ)
How does a car act when the fuel injector is going out?
When a fuel injector goes terribly, the engine may start to misfire, run rough, and have difficulty accelerating. It can also cause a decrease in acceleration power and reduced overall performance of the car. In some cases, it might even emit smoke from the exhaust pipe due to combustion problems. The Check Engine Light (CEL) will often come on when there is an issue with the fuel injector, indicating that it needs attention or service soon. If left unchecked for too long, this could lead to further damage and more expensive repairs. To avoid these unnecessary costs and keep your car running smoothly, make sure you take care of any signs of a bad fuel injector immediately.
