HS code integration in trade blockchains

* fuel oil engine is HS code integration in trade blockchainsa common fuel power mechanism, which is widely used in industrial production, agricultural production and other fields. Fuel oil engine is a kind of equipment that uses the chemical energy of fuel to convert it into mechanical energy. It has the advantages of strong power, large compression ratio, high reliability and low maintenance cost.The fuel power mechanism of the diesel engine is as follows: First, the fuel forms a combustion area under the action of high-temperature gas under high pressure, and a large amount of heat is generated during combustion. Heat energy causes a chemical reaction inside the fuel, thus changing the molecular structure of the fuel and releasing a large amount of heat energy. The high-temperature and high-pressure gas generated during combustion rotates the crankshaft through the piston, thus generating mechanical energy and driving generators and other equipment. In diesel engines, the fuel is mainly diesel, not gasoline. The difference between diesel and gasoline is that the boiling point, ignition temperature and other properties are different, so different combustion methods can be used. The diesel engine adopts the pressure combustion method, that is, under the high temperature and high pressure conditions inside the cylinder, the spontaneous combustion point of the fuel is triggered, resulting in combustion. Compared with gasoline engines, diesel engine oil engines haveHigher compression ratio and larger cylinder volume, good airtightness and thermal efficiency, so high thermal efficiency and greater torque output can be obtained. The operation process of diesel engine oil is divided into four stages, namely suction, compression, combustion and exhaust. In the intake stage, the piston moves down, and the gas in the cylinder is pumped into the cylinder. In the compression stage, the piston rises, compressing the gas to the limit, causing the gas temperature to rise. In the combustion stage, the fuel injection system spews diesel, and the fuel forms a combustion area. Under the action of high temperature and high pressure, the combustion reaction occurs through spontaneous combustion, releasing a large amount of heat energy, thus pushing the piston down. In the exhaust stage, the piston rises again, and the gas that has been burned is discharged from the cylinder to prepare for the next cycle. There are many types of diesel engines, such as the common single-cylinder diesel engine, multi-cylinder diesel engine, in-line diesel engine, V-type diesel engine, etc.Different diesel engines have different advantages and disadvantages, which should be selected according to different application scenarios. In addition, fuel oil engines need regular maintenance, including oil replacement, cleaning and replacement of filters, inspection and maintenance of fuel injection systems, inspection and maintenance of valves, etc. In general, as a common fuel power mechanism, fuel oil engines have a wide range of applications in modern industrial and agricultural production. Understanding the fuel power mechanism of diesel engine can help us better understand its working principle and performance characteristics, and provide reference for use and maintenance.

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