Customs duty prediction models

List of Contents of this article:

• 1, Brief Introduction to Automobile Engine Development
• 2 , Development trend and future prospects of vehicle engine combustion technology
• 3, Test your views on today's engine development
• 4、 What do you think about the development trend of engines in the future?

A Brief Introduction to the Development of Automobile Engines

In the year, Otto, a German, manufactured the first four-stroke resurrected internal combustion engine (single-cylinder, horizontal, gas as fuel, flame ignition, power about 2 1 kilowatt, rotation speed 180 rm, compression ratio 66).

year, Swiss Busch (A. Buchi) proposed the theory of exhaust gas turbocharging, which uses the exhaust gas energy discharged from the engine to drive the compressor and supercharge the engine.

Looking back on the history of the emergence 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.

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.

Milestones 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.

After 30 years of development, the engine management system with computer as the core has gradually become the standard configuration of automobile engines, especially automobile engines. Due to the application of electronic control technology, the pollutant emissions, noise and fuel consumption of the engine have been greatly reduced, and the power performance has been improved, which has become the fourth breakthrough in the history of internal combustion engine development.

Development trend and future prospects of automotive engine combustion technology

Turbocharging technology - This technology can greatly increase the amount of oxygen entering the cylinder, thus improving the combustion process and power output. In-cylinder direct injection technology - accurately inject fuel into the cylinder through a high-pressure injector to improve combustion efficiency and economy.

In the future, engine fuel consumption and energy-saving technology will continue to be developed and applied. For example, the emergence of new vehicles such as electric vehicles and hybrid vehicles will further promote the development of engine fuel consumption and energy-saving technology.

At present, there is fierce competition in North America in the development direction of automobile power systems at this stage. This competition is roughly reflected in four different power system technologies, namely: 1.Advanced diesel power technology; 2. Electric oil hybrid technology; 3. Fuel ethanol and gasoline hybrid technology; 4. Improve the performance of gasoline engines.

Test your views on the development of today's engines

Compared with turbocharged engines, self-aspirated engines have a large room for improvement in compression ratio and thermal efficiency, and these two indicators should be targeted. Upgrading is the future development direction of self-aspirated engines.

The disadvantages of three-cylinder are obvious. The appearance of three-cylinder engines in China first appeared in Charley cars. At that time, Charley adopted a three-cylinder engine, with low power, high vibration and high noise, which are the characteristics of this engine. Since then, the three-cylinder engine has been regarded as an engine with many shortcomings.

This increasingly strict emission regulations and people's deepening understanding of energy conservation have given great importance to the development of high-efficiency and low-emission vehicle engine technology, thus promoting the continuous innovation of traditional internal combustion engine technology.

Peuleum fuel engines have basically reached the limit, and cannot be more fuel-efficient or emit less waste gas. Unless there is a breakthrough in materials. Now it is developing in the direction of hybrid power. The ultimate direction is the efficient utilization of hydrogen energy, fuel cells and solar energy.

Development of engine combustion technology 1 New combustion method In order to achieve high efficiency of vehicle engines, researchers must use advanced parts technology. Under the premise of fully considering the cooling loss, the researchers studied the heat release coefficient.

At present, the moreMore and more regions or car brands have begun to make plans, gradually abandoning gasoline engines and turning to the arms of new energy. Automobile internal combustion engines, which have been dominated for more than a century, are gradually declining. Looking at the whole development process of automobiles, at the current situation, internal combustion engines are at the end of the road.

Zhuhai Air Show 2022 engine level

1. At the 2022 Zhuhai Airshow, the U.S. media was still saying that the number of J-20s was about 200, and about 150 was a verifiable state; after a few months, it was further clarified that the total number of J-20s had exceeded 200, and it was also predicted that 500 to 700 J-20s will be put into service.

2. High-loading integral casting molding combustion chamber, super-large nozzle, new C/C throat lining and other advanced technologies, the comprehensive performance of the engine has reached the world's leading level, which will provide more powerful and cost-effective advanced power for China's new solid launch vehicle, and significantly enhance the commercialization of solid rockets. The competitiveness of the space launch market.

3. Combined with the cost composition of civil aircraft, engines account for 22%, it is estimated that the total size of the civil aviation engine market in the next 20 years will be 19052.1 billion yuan, with an annual average of nearly 100 billion yuan. Zhang Xia of China Merchants Securities said in a research report released on August 20 that the aircraft engine is the core component of the aircraft, accounting for about 20%-30% of the value of the aircraft.

4. The U.S. media pointed out that China exhibited the concept model of the sixth-generation fighter aircraft at the Zhuhai Air Show. This fighter aircraft has an innovative appearance and tailless design. It will adopt China's most advanced stealth technology and be equipped with the most powerful power system. It is about to become China's fastest and most advanced hidden aircraft. Body fighter.

5. According to the media, the "Taihang" engine will be displayed during the Zhuhai Airshow, which is an important event for the development of China's aviation system. As we all know, our country'sCompared with the world's advanced, there is still a big gap between Hangfa and the world's advanced. Therefore, China has always attached importance to technological research and development in this field.

What is the current development trend of the engine?

1. The TSI engine represents the new development of automobile technology. It adopts modern technology to make automobiles more efficient, green and have excellent driving performance. With the increasingly strict requirements for environmental pollution, TSI engines will undoubtedly become one of the development trends of the automobile industry in the future.

2. 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.

3. In order to adapt to the needs of the current electric driving era of automobiles, engine technology has gradually diversified, and various hybrid power systems have also been fully developed. Hybrid vehicles (HEVs) still need to carry traditional fossil fuels with them, so continuously improving engine fuel economy is still a top priority.

4. And autonomous driving will exacerbate this trend as a new factor. Cars with self-driving functions reduce consumers' ability to control vehicles, which will weaken consumers' sense of ownership.

5. The current development trend of the engine is an all-aluminum engine. On the other hand, at present, Volkswagen's advanced TSI technology is also a cast iron engine, which is super powerful and very advanced. So what is a high-end engine? I also think that the all-aluminum engine should be a better engine in line with the development trend of the new engine.

What do you think about the development trend of engines in the future?

1. In order to save gasoline and reduce pollution, people will use electric vehicles, gas vehicles and solar vehicles more. In order to make cars safer, more convenient and faster, more intelligent cars should be developed. There are many sensors and automatic devices in smart cars. Radar, laser detectors, etc. can be used to detect objects in front and behind the car to ensure that there is no collision.

2. The development level of aviation engines is one of the concentrated embodiment of a country's comprehensive national strength, industrial foundation and scientific and technological level, which is an important strategic guarantee for national security and the status of a powerful country.

3. The optimization of the combustion process and the development of new combustion technologies play an important role in the technological development of vehicle engines.

4. The development of this budget is nothing more than saving fuel, increasing power, and then more solid... The main reason why diesel is not used in China is that there is less diesel at gas stations in China = = Sometimes there is even a shortage of oil.