Gasoline and diesel engine working principle of interpretation

A measure of physical movement. Corresponding to the various forms of exercise material, there are various forms of energy, may be converted mutually to each other, but the total change. Thermodynamics and heat energy mainly refers to the conversion from thermal energy from the mechanical energy. Our car's engine, it is inherent in the fossil fuel chemical energy into mechanical energy to drive the car. Mentioned before, a lot of four-stroke engines, we will be classified into two categories: Otto cycle characteristics of the gas engine and a gasoline engine, Di Saier cycle characteristics of the diesel engine. Modern gas engine basically equivalent to gasoline engines, direct injection gasoline engine, although the structure has changed, but the mechanism is still acting Otto cycle range.