HS code classification for electronics

List of the catalog of this article:

• 1, Automobile Knowledge: Automobile Engine in the History of Automobile Development
• 2、 What is the development process of gasoline engines like?
• 3, Aviation Development history of engine
• 4, car engine'sHistorical development
• 5, Looking for the development status of automobile engines?

Automobile Knowledge: Automobile Engine in the History of Automobile Development

1. Henry Ford successfully developed a 2-cylinder 4-wheeled automobile, and Ford Motor Company was established in 1903. In particular, the emergence of Ford Model T has greatly promoted the consumption of the automobile market and began to enter thousands of households.

2In the year, French artillery engineer Nicolas Gunault installed a steam engine on a wooden tricycle to make the earliest motor vehicle (Figure 0-5). The steam engine is an external combustion engine. The fuel burns outside the cylinder, and the thermal efficiency is low.

3. The horizontally opposed engine is similar to the inline engine, which does not share the crank pin (that is, a piston is only connected to one crank pin), and the direction of movement of the piston is opposite, but the 180°V engine is exactly the opposite.

What is the development process of gasoline engines like?

1. After the intake stroke begins, the intake valve opens, the exhaust valve is closed, the crankshaft rotates, and the piston moves from the upper stop point to the lower stop point. The volume above the piston increases and the pressure decreases. The combustible mixture of gasoline and air enters the cylinder due to the pressure difference.

2. Looking back on the history of the generation and development of the engine, it has gone through three stages of development: steam engine, external combustion engine and internal combustion engine. External combustion engine, that is, its fuel burns on the outside of the engine, by R. of Scotland in 1816. It was invented by Sterling, so it is also known as Sterling Engine.

3. The engine is the power device of the car, which is called the heart of the car. Its development directly drives the development of the car. The power of cars has gone through a lot of power from steam to electricity to gasoline and diesel.

Development history of aviation engines

Over the years, aviation gas turbine engines have replaced piston engines, creating the jet era and occupying a dominant position in aviation power.

There are three main parts: fan blades, compressor blades and turbine blades. In the early days, the fan blades were made of titanium alloy material, but now the advanced one is mixed, that is, sandwich core, the middle is a core made of composite materials, and the outer bread is titanium alloy.

Kunlun engine is the most advanced medium-thrust military turbojet engine in China, which can be used for J-7 and J-8 series aircraft.The engine still has potential for development in terms of performance and service life, and its development type can also meet the needs of the Chinese Air Force for medium and high-thrust turbojet engines.

Looking back on the history of the emergence and development of the engine, it has gone through two stages of development: external combustion engine and internal combustion engine.

Historical development of automobile engine

1. Looking back on the history of engine generation and development, it has gone through two stages of development: external combustion engine and internal combustion engine.

2. After the era, the exhaust gas turbocharging technology began to be gradually applied to the internal combustion engine of the vehicle, which greatly improved the engine performance and became the third major breakthrough in the history of the development of the internal combustion engine. In 1956, the German Wankel invented the rotor engine, which greatly increased the engine speed.

3. Milestone in the history of gasoline engine development The first gasoline engine car In 1885, German engineer Karl Benz developed a tricycle equipped with a 0.85 horsepower gasoline engine. Another German engineer, Godleib Daimler, also developed a four-wheeled car powered by a 1.1-horsepower gasoline engine.

4. Mazda-specific rotor engine In 1957, the German Wanger invented the rotor piston engine, which is an important branch of the development of gasoline engines.

Looking for the development status of automobile engines?

1. Even though China's manufacturing industry is developing very fast, there is still a large room for development. Driven by the development of the market economy, China's engine market has also shown a booming state in recent years.In recent years, the use of global oil resources has become increasingly tight, and people have begun to study engines to replace fuels.

2. In summary, the "green engine" that combines strong power and environmental protection is the development trend of heavy-duty vehicle engines. The two should develop in sync, and you can't walk without any leg.

3. Market demand continues to decline. Affected by the replacement effect of new energy vehicles (without engines), the demand for automotive engines in China is also declining year by year. In 2019, the sales volume of vehicle engines in China was only 22.19 million units, down 04% from 2018.

4. The great progress of electronic technology has significantly improved the reliability and processing capacity of electronic components, and the improvement of the use of electronic technology has provided conditions for making cars. In the future, the development of engine electronics will focus on energy saving, environmental protection, safety and comfort.