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Revealing the working principle of diesel engine Diesel engine is European Cup livea common internal combustion engine, which is widely used in various traditional means of transportation and equipment, including cars, trucks, trains, ships, etc. This article will discuss the working principle and process of diesel engines. Components of a diesel engine The diesel engine is composed of multiple components, which work together to complete the work of the engine. The main components of diesel engines include: 1. Cylinder block: The cylinder block is the main part of a diesel engine, which is usually made of gray cast iron or aluminum alloy. Engines usually have four or six cylinders, and each cylinder has a separate cylinder block. Two. Piston and connecting rod: The piston is installed in the cylinder and connected to the crankshaft through the connecting rod.The piston and connecting rod move up and down in the engine, which is also the working process of the engine. 3. Crankshaft and crankcase: The crankshaft is the main shaft in the engine, which drives the rotation of the whole engine. The crankcase is a structure responsible for protecting the crankshaft and providing lubricating oil and fuel to the engine through the oil pump and injector. Four. Head cover and cylinder head: These parts provide reinforcement and sealing functions for the engine, and accommodate valves and injectors as well as fuel nozzles. 5. VALVE AND FUEL INJECTOR: THE VALVE IS RESPONSIBLE FOR THE INTAIN AND EXT OF THE CORRESPONDING CYLINDER, AND THE FUEL INJECTOR IS RESPONSIBLE FOR SPRAYING DIESEL FUEL FOR THE ENGINE TO BURN WHEN EACH PISTON RISES. The working process of diesel engines The working process of diesel engines is divided into four steps: air intake, compression, combustion and discharge. 1. Air intake: During the air intake process, the valve opens and the diesel fuel is injected into the cylinder.As the piston moves down, the engine sucks in a mixture of air and fuel. Two. Compression: During the compression process, the piston moves upwards and the mixture is compressed to a high-pressure state. With the compression of the mixture, the temperature of the mixture rises, creating an ideal combustion condition. 3. Combustion: During the combustion process, the fuel injector will spray fuel into the cylinder in a compressed state. The fuel ignites immediately, causing an explosive reaction and pushing the piston down. Four. Emission: During the discharge process, the valve opens to discharge the exhaust gas from the cylinder to the environment. In this step, the parts around the piston move up to prepare for the intake process again. Advantages of diesel engines Compared with gasoline engines, diesel engines have many advantages. They are more durable, more economical, more efficient, and can handle higher load capacity.Diesel engines use more concentrated fuel than gasoline, which can produce higher power with less fuel. Due to the more concentrated fuel, diesel engines usually use turbochargers to increase their power output. Another advantage is that diesel engines are more environmentally friendly. They generate power by burning diesel fuel, which means they do not produce some harmful emissions from gasoline engines, such as carbon monoxide. Diesel engines can also run on biofuels, such as renewable biodiesel, which is more environmentally friendly. Conclusion In general, diesel engines are an efficient, economical and environmentally friendly choice. Understanding the working principle of a diesel engine can help us better understand the advantages and disadvantages of this engine. With the continuous updating of technology, diesel engines will continue to play an important role in the future.

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