HS code mapping to logistics KPIs

Engine classification: based on HS code mapping to logistics KPIsdifferent purposes and working principles, engines can be divided into several types. Engines are one of the cores of the modern machinery industry and play a very important role. According to different purposes and working principles, engines can be divided into several categories. Next, we will introduce the characteristics and applications of these engines respectively. 1. Internal combustion engine Internal combustion engine, as the name implies, is to convert the energy generated by gas combustion into mechanical energy.Internal combustion engines are divided into gasoline engines and diesel engines. A gasoline engine is an engine fueled by gasoline. It ignites the mixed gas through spark plugs, thus driving the piston to generate power. Gasoline engines have the advantages of high speed, strong power, light mass, strong detachability, etc., and are often used in cars and small mechanical equipment. The diesel engine is a diesel-fueled engine. It uses compressed fuel to inject diesel into the cylinder through high temperature and high pressure, and the combustion produces gas, thus pushing the piston. Diesel engines have the characteristics of high power, strong durability and stable power, and are often used in trucks, tractors and generators. Two. Electric motors are mechanical transmission components that convert electrical energy into mechanical energy. The electric motor has the advantages of wide speed range, good stability, lightness and small quality, so it is the most widely used engine in the automation industry at present.At present, electric motors have been widely used in household appliances, industrial automation equipment, etc. 3. Turbojet engine Turbojet engine is a gas-powered engine, which is one of the main power units on passenger, cargo and military aircraft. The working principle of the turbojet engine is to compress air, mix it with fuel, burn in the combustion chamber, release high-temperature and high-pressure gas, and then drive a large turbine to generate thrust. Turbojet engines have the advantages of high thrust, high speed, long range, strong reliability, etc., and are indispensable power devices for modern aircraft. Four. Steam engine Steam engine is an engine that uses the energy of water vapor to convert it into mechanical energy. Steam engines are widely used in textile, papermaking, metallurgy, food processing and other industrial fields. SteamThe engine has undergone many changes. Today, it has become an important power unit for large-scale process energy automation production equipment with the advantages of high efficiency, reliability and energy saving. 5. Gas turbine engine Gas turbine engine is an engine that releases energy from high-temperature and high-pressure gas to generate thrust. Its principle is to link the turbine and the compressor, in which the turbine is responsible for turning the compressor, compressing the air, and then spraying fuel to burn, releasing high-temperature and high-pressure gas, thus promoting the turbine to rotate. Gas turbine engines have the advantages of simplicity, high efficiency, high speed, light quality, etc., and are widely used in helicopters, bombers, transport aircraft and other military fields. In a word, the engine is one of the cores of the development of the modern machinery industry, and its types and applications are also very wide. Do different engines haveWith the same working principle and characteristics, it plays an irreplaceable role in different fields and applications.

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