Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion

The fuel is compressed unlike ignition by sparks in petrol engines.

The diesel engine is also known as compression ignition engine.

Diesel engines work by compressing only the air.

Because CIengine is a constant presser engine and in which air compressed at high pressure and temperature and the fuel is injected inside the cylinder and fuel is burned. So it said to be C.I. engine.

Because In diesel Engine, air is compressed. And there is no spark is created by the diesel engine. So it said to be C.I. Engine.

Diesel engines have a fuel injecter will be. The compression ratio of diesel engines is 15:1 to 22:1. It has high pressure. At end of compression stroke, the fuel may be injected.

In diesel engines, fuel is atomized and mixed with air inside the cylinder through fuel injectors, and ignition takes place only by the compression of the air-fuel mixture in the compression stroke. Whereas in petrol engine (spark ignition engines), ignition takes place by spark plugs. So in diesel engines, Due to compression high pressure and temperature increases and the mixture ignites for the power stroke. Hence diesel engines are also known as compression engines.

Yes, That is right, how an ignition is taking place because of compression? Explain please.

Diesel will be burnt due to compression in diesel engine.

In the compression ignition engine air fuel mixture burn due to high compression ratio, compressed air temperature higher than self ignition temperature of fuel.

Compressing in a closed cylinder air gots maximum temperature perhaps fuel is high pressurised injected in a closed cylinder that causes combustible take place.