What is a diesel injector assembly and how do they work

The injector assembly is a mechanical component that is part of the fuel system whose task is to introduce fluid (in our case fuel) into the vehicle's engine. Unlike a simple transmission, fuel injectors allow a gradual and calibrated flow of just the right amount of fuel to the engine to function properly. Depending on the type of operation (electronic, mechanical or mechatronic), syringes can have different names.