What is the primary purpose of a fuel injector in an engine?

The primary purpose of a fuel injector in an engine is to spray fuel into the combustion chamber. This component is crucial for the proper functioning of internal combustion engines because it atomizes the fuel, creating a fine mist that mixes efficiently with air. This process facilitates better combustion, enhancing engine efficiency and performance. The fuel injector delivers the correct amount of fuel based on the engine's requirements, which is determined by various factors, including engine load and speed.

By providing the right fuel-air mixture, fuel injectors help optimize power output while minimizing emissions, making them essential for modern automotive engines. The effective functioning of the fuel injector directly impacts engine performance, fuel economy, and overall drivability.