The Working Of Diesel Fuel Injectors

When we talk about diesel fuel injectors, there are certain important terms which everyone should be aware about. These terms are Injector, injector body, ‘nozzles’ (also known as ‘dyser ‘in German Language), Nozzle Body and many more.

Diesel Fuel Injectors

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Fuel injectors can be defined as small electrical components which are used to deliver fuel through a spray, directly into the intake manifold  which is in the front of the intake valve in a diesel engine.

‘Diesel fuel injectors’ (also known as dieseldyser in German Language) are quite complicated in nature. The injector has a high micron filter on the top inlet side. It corresponds to small hypodermic sized holes on the bottom for the purpose of atomizing of the diesel fuel.

The diesel fuel serves as a lubricating thing for the internal parts of the injector. The main reason for the failure for injectors comes out to be water in the fuel.

Working Of Diesel Fuel Injector

When water in the fuel displaces the lubricating properties, then the internal parts wear down quickly and the injector fails down very quickly.

The injector valve opens and closes at the rpm just like the diesel engine. Apart from water in the fuel, injectors are also subjected to carbon and dirt particles. These are introduced into the unit through a bad air cleaner element.

The life expectancy of the fuel injector depends on a number of factors, say the type of fuel, grade and additives used. The engine control module is responsible for controlling the fuel injectors in most of the electrical diesel engines.

The engine control module grounds the injector, completes the circuit and causes the injector nozzle to open.

The whole process of diesel fuel injectors opening, closing and distributing the exact amount of fuel, happens in milliseconds. An Injector cycle firing  on an average gets completed up in 1.5 milliseconds to 5 milliseconds.