What is the function of the fuel injector in modern engines?

The fuel injector's primary function in modern engines is to atomize and deliver fuel directly into the combustion chamber. This process is crucial for optimal combustion because it ensures that the fuel is broken down into very fine droplets, which promotes better mixing with air. The resulting air-fuel mixture is more homogeneous, leading to more efficient combustion, improved power output, and reduced emissions.

Modern engines equipped with fuel injectors utilize electronic control systems that allow for precise timing and quantity of fuel delivered based on engine conditions. This level of control helps in meeting strict emissions standards and enhancing overall engine performance by enabling adjustments in the fuel delivery according to varying load and speed conditions.