Diesel engines are a wide variety of engines that can ignite fuel without the need for an electric spark. These motors are used to heat the fuel from high temperatures. This is how they first raise the temperature of the combustion chamber and mix the fuel with air after the temperature has risen enough.
As you know, to burn a fuel requires both heat and oxygen. The oxygen enters the engine cylinder chamber through the engine inlet ducts and is then compressed by the piston. This compression is so high that it causes very high heat. Then the third element, fuel, is added to heat and oxygen, which in turn fuels the fuel and drives the diesel engine.

Diesel engines, like other internal combustion engines, can be classified on different bases. For example, the diesel engine can be divided into two-stroke diesel or four-stroke diesel engines, depending on the amount of ignition per turn, or in terms of output power expressed as horsepower. Either according to the number of cylinders or the shape of the cylinders, accordingly they were divided into two types of linear diesel engine and V diesel engine or diesel engine.

Diesel Engine Structure:
The structure of the diesel engine differs only from the ignition and fuel system with the spark ignition engines. So there are very similar structures between these engines and their only difference is the following components that exist in the diesel engine and do not exist in other internal combustion engines.

Injector Pump: It is responsible for adjusting the fuel level and supplying the pressure needed to inject fuel.
Injectors: Powder the fuel and gas the combustion chamber.
Fuel filters: Separates extraneous and extraneous materials from the fuel.
Fuel Transmission Pipes: They must be unsaturated and withstand pressure.
Turbo Charger: Increases inlet air to the engine cylinder.
As mentioned, diesel engines are divided into two categories of four-stroke and two-stroke engines based on how they work. However, there are four main steps involved in both engines: suction or breathing - compression or pressure - work or explosion and discharge or smoke, but depending on the type of diesel engine, these steps may be performed separately or in combination.