A diesel fuel injector is a device used to meter the amount of fuel injected into the engine. It is connected to the engine by a nozzle and regulates the pressure of fuel delivered to it. A diesel fuel injector is an important part of a diesel engine, but it can be replaced if needed.
Fuel injectors are typically made from either stainless steel or aluminum that has been coated with silicon nitride for corrosion protection. Diesel engine injectors are typically machined from a billet of stainless steel or aluminum and then coated with silicon nitride for corrosion resistance. The substrate must be of the proper material and thickness. A manufacturer will provide all the necessary specifications that specify the size, shape, coating thickness, speed rating, and pressure rating. These specifications are crucial to determine which type of fuel injector is required.
What Makes Up a Diesel Fuel Injector
The diesel engine injectors are made up of the pilot nozzle and the main orifice (for diesel engines without multipoint or direct injection). The pilot nozzle is designed to vaporize the liquid fuel in order to provide a sufficient supply of gas for proper combustion. The second part of the injector, called the main orifice, is designed to put a stop to the gas flow for all but a fraction of a second, and deliver the fuel-air mixture in one or more pulses into the combustion chamber.
The injector pumps are used on diesel engines and their variants and are used to pressurize the fuel lines.
