Global HS code standardization efforts

Diesel engine structure diagram (concise diesel engine structure diagram) Diesel engine is Global HS code standardization effortsa common internal combustion engine, which uses diesel as fuel and can be used in large and heavy equipment in many different fields. These engines have many different parts, including cylinder blocks, cylinder heads, valves, pistons, crankshafts and connecting rods. In this article, we will introduce the structural diagrams and components of diesel engines in detail, and explain their functions and effects. The structural diagram of the diesel engine is shown as follows: (There are 8 annotations in the figure, corresponding to the following 8 parts: crankcase, cylinder block, cylinder head, valve, piston, fuel system, lubrication system and cooling system) The crankcase is the bottom part of the diesel engine, including the movement of important parts such as pistons and connecting rods. System.In addition to supporting the bottom spindle base, the crankcase also includes piston rods, connecting rods, etc. Therefore, the crankcase is the central part that connects all key sports components. Cylinder block is the main shell of a diesel engine, which contains the cylinder block necessary for diesel combustion. The displacement of the engine depends on the size, quantity and shape of the cylinder block. According to the needs, diesel engines can adopt two or more cylinder blocks. The cylinder head is an important part installed on the top of the cylinder block, and the valve, oil well and other important safety components are installed at the top. The cylinder head and cylinder block are closely combined to form a complete combustion chamber, so that diesel can be accurately injected into each cylinder block. The valve in the diesel engine controls the flow of air and fuel. These parts are located between the cylinder block and the cylinder head, and the valve and putter are connected to the internal control system of the engine by mechanical power such as wire ropes.The piston is one of the most important parts of the diesel engine, and it works in combination with the connecting rod. Under the pressure of fuel and air, the piston moves up and down, thus pushing the crankshaft to rotate to drive the vehicle or machine. Fuel system The fuel system is one of the most important parts of a diesel engine. It includes fuel pumps, fuel injectors and fuel filters. These components work together to ensure that vehicles and machines can get enough fuel for optimal performance. Lubrication system Lubrication system is an indispensable part of a diesel engine. It sends lubricating oil to all parts of the engine through the oil pump to reduce friction and wear. Under high temperature and high pressure, lubricating oil plays a role in protecting the engine from damage. Cooling system The cooling system reduces the temperature of the engine to a reasonable working level by introducing coolant into the diesel engine to protect the engine from excessive heat and overcooling.The cooling system mainly includes radiators and pumps. In summary, in this article, we briefly introduce the structural diagram and components of the diesel engine, as well as the role and function of these components in the engine. We learned how diesel engines work and how to protect the health and durability of the engine through components such as lubrication systems and cooling systems. Understanding the engine structure is very important for understanding the principle of the machine and for repair and maintenance.

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