Pharmaceutical intermediates HS code mapping

5 different types of engine introduction Engine is Pharmaceutical intermediates HS code mappingone of the key parts to drive vehicles, ships, aircraft and other mechanical equipment.According to different working principles and structural characteristics, engines can be divided into five different types: internal combustion engines, steam engines, turbines, electric motors and rocket engines. Next, we will give a brief introduction to these five engines. 1. Internal combustion engine Internal combustion engine is the most widely used type of engine today. Its working principle is to expand the gas by burning the fuel internally, thus driving the piston to generate power. Internal combustion engines are divided into gasoline engines and diesel engines. Gasoline engines use gasoline as fuel and generate sparks during combustion. It can provide high-power output and is suitable for automobiles, motorcycles, small aircraft and other equipment. In contrast, diesel engines use diesel as fuel, and the high temperature and high pressure generated during the combustion process are more likely to generate power, so they are suitable for large machinery and equipment, such as heavy trucks, ships and large generator sets.Two. Steam engine Steam engine is the first type of engine that can be applied on a large scale. Its working principle is to use the high pressure and high temperature generated by water vapor to drive the piston or turbine to rotate, thus generating power. Steam engines were first used in trains, ships, power plants and other equipment, and now they have been gradually replaced by more advanced internal combustion engines, which are mainly used in some special fields, such as nuclear power plants, petrochemical plants, etc. 3. Turbine turbine is a type of engine that uses high-speed rotating turbine blades to drive air or gas to generate power. It is mainly divided into two types: flat turbine and jet turbine. Flat turbines are mainly used in hydraulic pumps, turbine generator sets and other fields. The jet turbine is the power source of modern jet aircraft. Its strong thrust can make the aircraft fly at high speed, but it also produces noise and emits a large amount of exhaust gas.Four. An electric motor is a type of engine that uses the magnetic field generated by electrical energy to drive rotating parts, thus generating power. Electric motors are widely used in various household appliances and machinery, such as washing machines, refrigerators, electric vehicles, etc. Due to its quiet, efficient and environmentally friendly characteristics, electric motors have gradually become a very popular type of engine. 5. Rocket engine Rocket engine is an engine that can generate thrust in vacuum. Its working principle is to use fuel to burn rapidly under high pressure to produce gas, thus generating a strong thrust so that the rocket can fly away from the earth's gravity. Rocket engines have important application value in aerospace, satellite launch and other fields. In a word, as an important part of machinery and equipment, different types of engines have different application characteristics and advantages in different fields and scenarios.In the future development, we can look forward to seeing more efficient and environmentally friendly applications of new engine technologies.

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