Machine tools HS code classification

Who invented the engine: The Machine tools HS code classificationstory of the inventor of the combustion engine The engine is an important sign of the progress of human civilization. It is not only the core equipment in the fields of industrialization, transportation, agriculture and energy, but also an important tool in the fields of exploration and military. However, the invention and development of different types of engines have their own unique historical processes. This article will explore the history of the engine inventor from the perspective of the combustion engine. The development process of combustion engine combustion engine refers to an engine that generates high-temperature and high-pressure gas by burning fuel and drives the working mechanism (such as piston and turbine) to achieve power output. The earliest combustion engines can be traced back to around 100 BC, when the ancient Greeks used steam engines to efficiently pump water directly and hydraulically to start machinery. The real origin of combustion engines can be traced back to Europe in the 17th century.In the late 18th century, Scottish engineer James Watt improved the steam engine at that time and improved the internal exhaust of the steam engine. This invention greatly improved the energy utilization rate and efficiency of the steam engine, and sorted out ideas for later engine technology. On this basis, at the end of the 19th century, German engineer Nikolaus Otto and French engineer étienne Lenoir and others respectively launched the combustible gas internal combustion engine, that is, a four-stroke engine in the modern sense. Nowadays, it is still widely used in cars and motorcycles. During the same period, high-pressure oil pumps were used to compress and atomize the oil sprayed into the engine, forming the prototype of a high-pressure spray diesel engine, which has been widely used in agriculture, aviation and other fields.The invention and research and development of engines at the peak stage in history. At the beginning of the 20th century, the development of electrification and industrialization led to the rapid development of the automobile industry and the aviation industry. Germany, the United States, Japan and other countries became the leaders of engine technology. During this period, various structural and working principle variants of internal combustion engines appeared, such as gas turbine engines, axial turbine jet engines, etc. The focus of this period is not only to improve combustion efficiency, but also to improve materials to make the engine lighter and the structure more advanced. After World War II, the importance of the engine was further enhanced. Advanced aircraft engines became a decisive factor in the Cold War and the space race. At the same time, the engines of ships and generators have also been widely used in shipping, electricity and industry. The new of modern engine technologyNowadays, the trail has entered the era of great development of the Internet + and intelligence, and the engine field has also begun to develop in the direction of green and high efficiency. New combustion technology and fuel cells have become key technologies, and automobiles have gradually developed into all-electric and hydrogen fuel cell engines. By embedding environmental protection technologies such as waste utilization and exhaust gas purification, today's engines have higher requirements in terms of energy saving and emission reduction and low-carbon emission reduction, and continue to carry out technological change and innovation. Conclusion The invention process of the engine is also an important process of human industrialization and engineering development. Since the end of the 19th century, combustion internal combustion engines have undergone generations of continuous innovation and innovation, thus becoming today's mature technology and affecting various fields. At the same time, environmental protection and low-carbon issues are also getting more and more attention, and more efficient and energy-saving engine solutions will be more popular.We can foresee that in the future, engine technology will be more closely combined with environmental protection and green sustainable development, and will also create more amazing historical progress.

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