Dízelüzem

Dízelüzem refers to the operation of an internal combustion engine that utilizes diesel fuel. This type of engine operates on the principle of compression ignition, meaning the fuel ignites spontaneously when it is injected into the extremely hot compressed air within the cylinder. Unlike gasoline engines that use spark plugs to ignite the fuel-air mixture, diesel engines rely on high compression ratios to generate the necessary heat for combustion.

Rudolf Diesel patented the diesel engine in 1892. The engine works by drawing air into the cylinder and compressing it to a very high pressure, which significantly raises its temperature. Diesel fuel is then injected into this hot compressed air, causing it to atomize and ignite. The resulting explosion of the fuel drives a piston, which in turn powers a crankshaft.

Diesel engines are known for their fuel efficiency and high torque, making them suitable for heavy-duty applications such as trucks, buses, trains, and ships. They are also used in some passenger cars, particularly in Europe, where their fuel economy is a significant advantage. However, diesel engines can also produce higher levels of particulate matter and nitrogen oxides compared to gasoline engines, leading to stricter emissions regulations in many regions. Modern diesel engines incorporate advanced technologies like diesel particulate filters (DPFs) and selective catalytic reduction (SCR) systems to reduce these emissions.