Why do internal combustion engines use diesel? What kind of diesel engines have been invented one after another?

The stability of diesel oil is suitable for compression ignition internal combustion engine, and diesel oil will not knock at very high compression ratio, which is exactly what diesel oil needs. After nearly 20 years of painstaking research, the diesel engine successfully manufactured the world's first experimental diesel engine (cylinder diameter 15cm, stroke 40cm). First, the laboratory is driven by the general engine of the factory. After the operation is stable, the fuel is put in, and the diesel engine suddenly turns and makes a deafening rumble. 1892 On February 27th, Desai obtained the patent of this technology. 1896, the second experimental diesel engine was made, and the efficiency reached 26% in the second year's test. This is the world's first diesel engine with constant pressure heating.