Can China produce aircraft engines?

Ten years ago, there were self-developed engines. Do you live in the 60s?

Large aircraft engines can be built in China, but the level can only reach developed countries, the level of the 90s of the last century, in the countries that can manufacture aero engines, it is considered to be the bottom, but it is no wonder that there are only a few countries in the world that can manufacture engines. An engine is a machine that converts a certain form of energy into mechanical energy. Its function is to convert the chemical energy of liquid or gas into heat energy after combustion, and then convert the heat energy into mechanical energy through expansion and output power.

To put it simply, the engine is an energy conversion mechanism, that is, the thermal energy of gasoline (diesel) is converted into mechanical energy by pushing the piston to work when the combustion gas expands in the sealed cylinder, which is the most basic principle of the engine. All the structure of the engine is for the energy conversion service, although the engine has gone through more than 100 years of history with the car, whether it is in the design, manufacturing, technology or performance, control has been greatly improved, its basic principle is still unchanged, this is a rich creative era, those engine designers, constantly integrate the latest technology with the engine, turn the engine into a complex mechatronics product, so that the engine performance has reached a nearly perfect degree, The world's famous automobile manufacturers will also take the performance of the engine as a competitive highlight, first, the role of the automobile engine.

The automobile engine is a device that provides power for the car, is the heart of the car, and is an energy conversion device, which is to convert the thermal energy of gasoline (diesel) into mechanical energy by expanding the gas after combustion in the sealed cylinder, pushing the piston to do work. According to different power**, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle motors, and hybrids.

Second, the classification of automobile engines.

1. According to the working mode of the air intake system, it can be divided into four types: naturally aspirated, turbocharged, mechanically supercharged and double supercharged.

2. According to the piston movement mode, it can be divided into two types: reciprocating piston internal combustion engine and rotary piston engine.

3. According to the cylinder arrangement type, it is divided into in-line engine, V-type engine, W-type engine and horizontally opposed engine.

4. According to the number of cylinders, it can be divided into single-cylinder engine and multi-cylinder engine. Modern cars mostly use three-cylinder, four-cylinder, six-cylinder, and eight-cylinder engines.

5. According to different cooling methods, it can be divided into water-cooled engine and air-cooled engine. The water-cooled engine cools evenly, works reliably, and has a good cooling effect, and is widely used in modern automotive engines.

6. According to the number of strokes, it can be divided into four-stroke internal combustion engine and two-stroke internal combustion engine. Four-stroke internal combustion engines are widely used in automobile engines.

7. Classified according to the way of fuel: carburetor engine and EFI engine and in-cylinder direct injection engine.

China can build its own engine, and the "Kunlun" engine is China's first aero engine that has completed the whole process of self-design, trial production, testing, and flight test, and is the most advanced military turbojet engine with medium thrust at present.

After hundreds of strict ground assessment tests and air test flights, the Kunlun engine was officially approved by the National Military Products Finalization Committee in July 2002. The successful development of this has made China the fifth country in the world after the United States, Russia, Britain, and France to be able to independently develop aero engines.

Its performance exceeds that of all previous domestic engines of China's military aircraft, including the best turbojet 13B before. The design unit of Kunlun engine is China First Airlines Shenyang Engine Design Institute. The development cycle is up to 18 years.

The project was established in 1984. The test flight lasted up to 8 years. It is impossible to develop an aero engine that can be put into service, especially for military use, without a solid technical and economic foundation.

Previously, the only countries in the world that could really independently develop aero engines were the United States, Russia, the United Kingdom and France.

Aero Engine Corporation of China:

China Aero Engine Group is mainly engaged in the development, production, maintenance and service of aero engines, auxiliary power, gas turbines, aircraft and transmission systems; Engaged in the research and development and manufacturing of aerospace materials and other advanced materials.

AECC designs and produces turbojets, turbofans, turboshafts, turboprops, piston engines and gas turbines and other products, which are widely equipped in all kinds of military and civil aircraft, large ships, small and medium-sized generator sets, and customers are involved in aviation, aerospace, ships, energy and other fields, making outstanding contributions to the construction of China's national defense equipment and the development of the national economy.

China Aero Engine Group has 27 directly affiliated enterprises and institutions, 3 main board listed companies, more than 70,000 employees, and a large number of high-quality and innovative scientific and technological talents, including 7 academicians and more than 200 national experts and scholars.

The above content refers to China Aero Engine Group - Group Profile.

It's not that it can't be made, but the quality of the production is much worse than that of the West.

Poor quality is a problem of materials and machining accuracy.

It's easy to improve this, just increase capital investment.

High-precision machines and materials can be strengthened by a large amount of money.

But the design just doesn't work.

The creativity of China's test-oriented education is truly powerful.

Not to mention those institutes, research institutes. It is China's private enterprises, which can build car engines and chassis, and everything can be built, that is.

Exterior design and vehicle design Interior design . It's all a garbage mess.

Geely, Chery, Great Wall, Chang'an. It is up to foreign designers to design the exterior and interior.

Domestic designers... Alas..

As far as GAC's design team is concerned, there is still a bit of interest.

Why can't China build a good engine?

Milk powder has not passed. Eat stupid for a generation.

Many of China's aircraft engines are independently developed.

For example, from turbojet 5 to turbojet 14, it is the most advanced military turbojet engine with medium thrust in China.

The three major brands of air-launched infiltration group aircraft independently developed by China are: Kunlun, Qinling and Taihang.

1. "Kunlun" engine:

It is the first aero engine in China to complete the whole process of self-design, trial production, test and flight test, and it is the most advanced military turbojet engine with medium thrust in China. The military code name of the Kunlun engine is "Turbojet 14".

2. "Qinling" engine:

China's self-developed first orange medium-thrust afterburner aviation turbofan engine "Qinling" is another major breakthrough in the field of aero engine manufacturing in China after the "Kunlun" engine. The engine is a twin-rotor turbofan engine, which has the characteristics of stable operation, reliable and rapid starting, good altitude and speed characteristics, low cruising fuel consumption rate and good maintenance.

3. "Taihang" engine:

It is China's first high-performance, high-thrust and afterburner turbofan engine with independent intellectual property rights, which ends the blank of domestic advanced turbofan engines. The Taihang engine was developed by China 606 Institute and is a third-generation domestic large military aviation turbofan engine. It adopts a large thrust ratio and a fully automatic digital control system, and the maximum thrust does not exceed 12,000 kg.

At present, it is mainly used to equip China's third-generation high-performance J-10 fighter. <>