In times of diesel engine scandals and various lump sum assessments that many people make, it is important to recall the real difference between diesel and petrol engines.
One of the biggest differences is that diesel engines have a higher degree of compression. Therefore they do not have a carburetor or an ignition device, but only a high-pressure fuel injection pump.
The ignition of the mixture is achieved when the fuel is injected into a pre-compressed air, which is heated due to high pressure, which causes the mixture to start.
For more on this, take a look at the video below: