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Evolution history of engine: from primitive steam engine to modern internal combustion engine engine is Binance loginthe core force of transportation and industrial production in modern society, and its evolution history is also the epitome of human scientific and technological progress. From primitive steam engines to modern internal combustion engines, the structure, performance and application of engines have gradually improved, making great contributions to the development and progress of human society. 1. The earliest engine of the primitive steam engine can be traced back to Greece in the 1st century BC, that is, the steam ball of Hron. It uses the steam enclosed in the sphere under water to increase the internal pressure, thus driving the sphere to rotate. However, this device has not produced practical value or brought any changes to industrial production. The real primitive steam engine can be traced back to the 18th century, and the steam pump was first successfully applied.Steam pumps are used to draw water from deep wells and fill the mine with water in an instant, giving mining workers a relatively safe working environment. 2. Steam engine In the late 18th century, James Watt created the first available steam engine, which was a revolutionary innovation in human history. The basic working principle of the steam engine is to introduce hot steam into a piston chamber, so that the piston rises due to the pressure of the steam, and then drives the machine to rotate. The steam engine consumes a lot of fuel, is inefficient, is large in size and heavy in weight, but its launch marks the beginning of machines replacing human power, laying the foundation for the outbreak of the industrial revolution later. 3. Fuel engine In 1876, German engineer Nicola Otto invented the first four-stroke internal combustion engine, which was one of the most common engine forms on automobiles, locomotives and other means of transportation later.The working principle of the internal combustion engine is that the fuel mixed with air is introduced into the cylinder, the spark plug ignites and causes an explosion. The high-temperature and high-pressure gas produced drives the piston and rotates the crankshaft under the action of the connecting rod. Internal combustion engines are more efficient than steam engines, have a simpler structure, less operating noise, and are easy to miniaturize, which is more suitable for vehicle applications. 4. Steam turbine Steam turbines were first jointly invented by the British Charles Ebercrom and James Watt in 1775, but it was not until after 1820 that the "rotary steam engine" was gradually commercially applied to large ships and trains. The working principle of the steam turbine is similar to that of the steam engine, but the way of converting thermal energy into mechanical energy is different. By introducing high-temperature and high-pressure steam into the impellers at both ends of the axle, the steam turbine uses steam flow to generate high-speed rotation and generate motion power.Steam turbines are more stable than production machinery and equipment, but much more expensive than internal combustion engines. 5. Diesel engine In 1892, German engineer Rudolf Dipol invented the first diesel engine. The working principle of the diesel engine is to inject fuel into the cylinder at high pressure and use the start-up device to compress the fuel and air to reach a huge temperature and pressure, then the fuel will suddenly spontaneously ignite, pushing the piston to generate power. Diesel engines are more energy-saving and fuel-efficient, and are used in high-power and high-torque mechanical systems. Ships, generator sets and trucks are all common diesel engine applications. 6. Electric motors originated in the 19th century and reached their peak in the 20th century. Its working principle is to convert electrical energy into mechanical energy and rotate the electromagnetic body through the electromagnetic force generated by the magnet. Electric motor saves resources, it does not pollute the environment and occupies an important position in modern industry, robots, electric vehicles, electric trains and other quiet, clean and efficient applications. 7. Modern engine Modern engine integrates a variety of technical concepts, which not only has the characteristics of energy-saving and environmental friendliness, but also has the advantages of high power and low wear. From micro-electric motors to fuel cells that emphasize sustainability, from miniaturization to high-throughput, modern engines are constantly evolving. Whether it is home cars, high-speed trains or large ships, they have carried out a powerful and high-tech evolution process in their engine housings. In a word, the evolution of the engine has been for nearly two hundred years, which has had a profound impact on the development and progress of human society. From primitive steam engines to modern internal combustion engines, the continuous renewal of engines has not only improved the production and living environment, but also greatly improved human productivity and living standards.With the continuous progress of science and technology and the expansion of application, the future of engines will be broader.

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