diiselmootoriga

A diiselmootoriga, or diesel engine, is a type of internal combustion engine that uses the heat of compression to ignite fuel. In a diesel engine, air is first compressed in the cylinder, raising its temperature to a point where it can ignite the injected diesel fuel. This process differs from a gasoline engine, which uses a spark plug to ignite the fuel-air mixture. The ignition of the fuel in a diesel engine occurs spontaneously when the fuel is injected into the hot, compressed air.

Diesel engines are known for their high thermal efficiency and fuel economy, making them a popular choice for heavy-duty applications such as trucks, buses, trains, and ships. They are also widely used in agricultural machinery and some passenger cars, particularly in Europe. The robust construction required to withstand the high compression ratios contributes to their durability and longevity.

The combustion process in a diesel engine produces soot and nitrogen oxides (NOx), which are pollutants. Modern diesel engines incorporate advanced emission control systems, such as diesel particulate filters (DPFs) and selective catalytic reduction (SCR), to significantly reduce these emissions and meet increasingly stringent environmental regulations. Despite past concerns about diesel emissions, technological advancements have made modern diesel engines much cleaner. The torque characteristics of diesel engines, with their strong low-end power delivery, are also a significant advantage for hauling and towing.