Gasoline engine and diesel engine lies in the difference between a fuel used in compression ratio, ignition method, and USES, compression ratio is refers to the piston in the cylinder movement, in the big volume and small volume of the gas cylinder.When the piston is at the lowest point, the gas volume in the cylinder is large, and the gas volume in the cylinder is the smallest when the piston is at the high point. The former is called the total volume of the cylinder, the latter is called the cylinder combustion chamber volume.Compression ratio is the important index of the internal combustion engine. The larger the compression ratio is, the higher the pressure is, the higher the temperature is.The compression ratio of gasoline engine is 4 ~ 6.The compression ratio of diesel engine is 15 ~ 18.Theoretically, the greater the compression ratio, the higher the efficiency.However, because the cylinder is limited by the strength of the material, and the temperature of the working medium in the cylinder cannot exceed the fuel point, the compression ratio cannot be too large.

They are fired in a different way, by mixing and pressurizing the gasoline vapors of the suction cylinder with the air, and then firing them with a spark plug.The diesel engine is a mixture of fog diesel and air, which is extruded by the nozzle and compressed to raise the temperature of the mixture.Gasoline engines are made from gasoline, and diesel engines are made from diesel fuel.That's where their names come from.

The gasoline engine is made of aluminum alloy, plastic and other materials.Small size, light weight, easy to start, stable operation, fast speed, suitable for small and fast transportation vehicles such as automobiles and aircraft.The compression ratio of the diesel engine is larger than that of the cylinder, which is made of steel plate, iron plate and other materials.Its power is large, suitable for heavy trucks, tractors, locomotives and ships.

The difference between the gasoline engine and diesel engine with ignition way in a four-stroke engine, for example: the working process of the four stroke engines: four-stroke engine is four of piston stroke to finish a work cycle, including the intake, compression, power, and exhaust four process.Four stroke diesel engine and gasoline engine experience the process of intake, compression, work and exhaust.But the difference with the gasoline engine is that the gasoline engine is ignited and the diesel engine is flaring.