The literal meaning of an engine is to provide power. It is a machine that converts other energy into mechanical energy. All machines are inseparable from engines. For everything that runs on the ground, flies in the sky, and swims in the water, the engine is their heart.
Our country started relatively late in the fields of mechanical power and scientific creation. Before overthrowing the monarchy, he had basically never been involved in any scientific fields, and naturally he had no inventions or creations. He just wandered in the humanities field and his thoughts were relatively restricted.
In 1769, French engineers produced the earliest steam-powered vehicle, which was the earliest external combustion engine. The fuel is outside the cylinder. Although the thermal efficiency of this method is very low, this is the starting point of the engine. At the same time, China was still in the Qianlong period. During this period, few people were studying, and their thoughts were restricted by the Eight-legged essay.
Since then, the external combustion engine has been improved, and the steam engine is an external combustion engine. The Watt we all know is an improvement on the external combustion engine. Burning a large amount of coal heats water, and the high-pressure steam generated drives mechanical movement, converting the thermal energy of combustion into kinetic energy. We can see this kind of steam train from old British movies. The front of the car is a burning boiler, and workers need to constantly add coal to the furnace while traveling. When the train stopped, a large amount of steam was released, and the station was shrouded in white mist.
After the industrial revolution, the production level of engines has been continuously improved, and the technology has been continuously advanced. From the inefficient external combustion engine, we have also developed into the era of internal combustion engine. Switch from using coal-burning water vapor to burning more efficient fuels such as gasoline and diesel. Engines are also divided into two branches: piston type that provides power for automobiles and turbojet type that provides power for aviation.
The first engine company is established in Germany to produce internal combustion engines. The first three-wheeled vehicle was also patented in Germany. German engineers modified the first gasoline-powered, electronically ignited four-wheel car. The invention patent for the diesel engine was also obtained by a German engineer. While the engine was booming, we were still struggling with the hardships of life.
my country's automobile industry started after the founding of the People's Republic of China, while passenger cars and other civilian vehicles only began to rise after the reform and opening up. But in the 1970s and 1980s, we had almost no own car brands. The major car companies were basically controlled by foreign capital, and the cars produced were all bearing other people's brands. Foreign capital's control of engine patents is equivalent to blocking the development of automobile companies. Even the Dongfeng trucks we often saw when we were young used other people's engines.
If you want to develop your own car brand, you must overcome the difficulty of the engine to have your own say. In recent years, with the strong support of the state, although independent brands in the automotive field have been vigorously developed, some key technologies in the engine field are still monopolized by foreign-funded enterprises. Compared with foreign countries, the technical level of independent engines is still far behind. After all, they have been accumulated and accumulated over a hundred years of experience.
We are world-famous for our hard work and hard work. Reform has given us great opportunities. In just a few decades, we have overcome many difficult problems in the field of science and technology due to the blockade of foreign technology. We have landed on the moon, bullet trains and high-speed trains have been integrated into our daily lives, our own fighter jets are protecting the motherland, and our hybrid rice has been sown all over the world. These are all testimonies of something coming from nothing. The fruitful achievements achieved in the field of science and technology from scratch to the present are inseparable from the passionate dedication of generations of people.
So we will also overcome difficulties such as engines, photolithography machines, and electronic chips.