What is the difference between a diesel engine and a gasoline engine?

The main differences between diesel engines and gasoline engines are their ignition methods, fuel efficiency, acceleration performance, etc. Diesel engines have a longer service life, are economical, and have a lower failure rate. Gasoline engines are widely used because of their lower noise and higher power. So what is the difference between the two?

1. Different driving methods

Of course, diesel is added if the diesel engine is driven by an injector, but when the outside temperature is cold, a small amount of gasoline needs to be added to drive it, because the fluidity of diesel in a cold environment becomes poor. As for gasoline engines, only gasoline can be used, and never try to add diesel. If this happens in reality, the engine needs to be cleaned immediately and all operations stopped.

2. Injection pressure

Since diesel engines are used for heavy trucks most of the time, and the fluidity of diesel is poor, the injection pressure is stronger than that of gasoline engines, up to 1800 bar. The gasoline engine with the same efficiency is 150 bar, and it is an intake injection type.

3. Differences in drive structure

Due to the poor fluidity of fuel, low ignition point and weak mixing properties, diesel engines require segmented propulsion drive - through piezoelectric and solenoid methods, and fewer use solenoids alone; a small amount of diesel is introduced into the engine combustion chamber through the injection pump for high pressure mixing and combustion, and the remaining diesel is evaporated at high temperature to continue burning and continue to provide power.

As for gasoline engines, they are relatively simple. Regardless of whether the injection pump is direct injection or non-direct injection, and whether the drive structure is solenoid or piezoelectric, gasoline and air are fully mixed in the combustion chamber, and then ignited to make it deflagrate, producing an explosive effect to provide power.