Diesel pump structure and working principle

Advantages of diesel hand pump is power, good economic performance. Diesel engines and gasoline engines working process has many of the same places, each working cycle has gone through the intake, compression, power, exhaust four stroke. However, since diesel fuel is diesel fuel, the viscosity than gasoline, which is difficult to evaporate, while its auto-ignition temperature but lower than the gas, thereby forming a combustible gas mixture and ignition are different from the gasoline engine. The main difference is that the diesel engine cylinder gas mixture is compression ignition, not lighted. diesel pump manufacturers when the air into the cylinder, compressed air cylinder to the end, the temperature at 500-700 ℃, pressure of 40-50 atm. When the piston approaches top dead center, high-pressure pump on the engine at high pressure to the cylinder injection diesel, diesel oil particles form fine, mixed with air high-pressure high-temperature, gas-diesel hybrid self-burning, violent expansion, generating power, pushing the piston down acting . In this case the temperature 1900-2000 ℃, pressure up to 60-100 atm, great power, therefore, widely used in diesel engines on large diesel vehicles.