There are several types of fuel injectors, but they all share the basic function of atomizing the fuel into a fine mist for optimal mixing with air before ignition. The key difference is *how* they achieve this atomization, which might involve:
* Pressure: Most modern injectors utilize pressure to force fuel through a small nozzle, creating a fine spray.
* Electromagnetic actuation: These are electronically controlled, opening and closing rapidly to precisely control the amount of fuel injected.
* Port injection: These injectors spray fuel into the intake manifold.
* Direct injection: These injectors spray fuel directly into the combustion chamber, often at very high pressure.
In short, fuel injectors are crucial components in modern internal combustion engines, responsible for precisely delivering the right amount of fuel at the right time for efficient and clean operation.