Country tariff schedules by HS code

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• What are the advantages and disadvantages of turbofan engines?

How strong is the turbofan 10B engine?

1. Turbofan-10B engine. Vortex fan 10B: The vortex fan 10B will adopt vector nozzle technology and make the WS-10B 38 cm longer than the WS-10A. The goal of turbofan 10B is: thrust of more than 14,000 kg, thrust ratio of more than 1, and a full life of more than 4,000 hours.

2. Vortex fan-The application of the 10B engine is another achievement in China today. Compared with the previous models, it not only enhances the performance in terms of power, but also realizes an all-round electronic digital system. In a sense, this system can be regarded as the main brain of the engine.

3. According to the data released by Pakistan, the empty load and maximum take-off weight of the J-10CE are 75 tons and 1,277 tons respectively, and the normal take-off weight is about 14 tons. In terms of engine performance, the normal thrust of the turbofan-10B used by the J-10CE is 094 tons, and the maximum thrust after opening the force-burning is 1515 tons.

4. Vortex fan 10 is the cornerstone of China as an aviation power. Its latest improved thrust has reached 15 tons, and the thrust-to-weight ratio is more than 8. Thanks to the adoption of the third-generation monocrystalline turbine blades, it does not reduce the life of the turbine while increasing the front temperature of the turbine.

What is the principle and difference between turbofan, turbo slurry, turbojet and turboshaft engine, and which aircraft are they suitable for? _Baidu...

1. The principle is different (1) The structure of the modern turbojet engine is composed of an intake duct, compressor, combustion chamber, turbine and tail nozzle, and there is also a power combustion chamber between the turbine and tail nozzle of the fighter.

2. Turbojet engine (vortex jet): It is to spray the combustion gas directly and provide kinetic energy by the thrust of the ejected airflow. Advantages: The high speed is particularly good. Disadvantages: Poor fuel economy. Vortex engines are mainly used in: general fighter jets, bombers and drones.

3. Turbojet engine is a kind of turbine engine. It is characterized by completely relying on gas flow to generate thrust. It is usually used as the power of high-speed aircraft. It is suitable for high-altitude high-speed fighters. Because the fuel consumption is higher than that of the turbine fan engine and there is little room for improvement, it is basically replaced by turbofan. Our army also has strong annihil and annihil mountain eagle and other models in active service.

The principle of micro-vortex engine

Air intake channel: sufficient air volume is smoothly introduced into the engine with minimal flow loss; in addition, when the flight speed is greater than the airflow speed at the inlet of the compressor, the air can be compressed by stamping to improve the air. The pressure of. Compressor: Work on the air through high-speed rotating blades to compress the air and increase the pressure of the air.

The working principle of the turbojet engine: The structure of the turbojet engine is composed of an intake duct, compressor, combustion chamber, turbine and tail nozzle, and there is also a power combustion chamber between the turbine and tail nozzle of the fighter. The turbojet engine is still a kind of thermal engine, and it must follow the principle of thermal engine: input energy under high pressure and release energy under low pressure.

First, the air is sucked in in the intake channel and compressed in the compressor.Secondly, the compressed air flows into the combustion chamber and mixes with fuel to produce high-temperature gas. Then, the high-temperature gas drives the turbine to rotate, and the turbine drives the compressor and nozzle to rotate.

F=MA, the speed remains unchanged, the weight increases, and more air molecules are accelerated) This device is today's protagonist, the turbojet engine. Working principle: The compressor (high and low pressure fan group) inhales air and supercharges it. Part of the high-pressure gas enters the combustion chamber and burns strongly after mixing with fuel.

The turbojet engine is composed of an intake duct, a compressor, a combustion chamber, a turbine and a tail nozzle.

The turbojet engine is composed of an intake duct, a compressor, a combustion chamber, a turbine and a tail nozzle. To put it simply, the air enters the intake duct and in the compressor.Increase the pressure under the action of, and then the combustion chamber and the fuel are fully burned, driving the turbine to rotate to produce high-temperature and high-pressure gas, and then continue to expand in the tail nozzle and discharge backwards from the nozzle.

Aviation engines have made a breakthrough, when will China have its own

Now, with the successful development of China's small turbofan engines, this bottleneck that restricts development has been broken through.

In the foreseeable future, China will become an aviation power like the United States, and it is possible that one or even more Seattles will appear in our country. China already has its own engines, but like all other high-end products, they are not conceived from the beginning or completed by the Chinese. They are more or less of foreign blood.

In December, China developed the large thrust and high thrust-to-weight ratio turbine fan engine turbofan-10 "Taihang" design and fixed with independent intellectual property rights, ending the gap of domestic advanced turbofan engines, marking that China has become the fifth in the world after the United States, the United Kingdom, Russia and France. Countries that independently develop aviation engine capabilities.

What is the difference between turbojet, turbofan and turboprop engine?

Different characteristics (1) Turbojet engine is a kind of turbine engine. It is characterized by completely relying on gas flow to generate thrust. It is usually used as the power of high-speed aircraft, but the fuel consumption is higher than that of the turbine fan engine. ( 2) The turbine fan engine has high thrust, high propulsion efficiency, low noise, low fuel consumption rate, and the aircraft has a long range.

The turbojet engine directly uses the airflow ejected by the turbine to fly forward by the reaction force, and the turboprop engine uses the power of the turbine to drive the propeller of the aircraft to generate airflow and fly forward by reaction force. The core component composition and principle of turboprop engine, turbojet engine and turbofan engine are the same.

Vortex spray: the most basic, simple structure, small diameter, so the wind resistance is small. A large amount of heat is discharged from the tail nozzle if it is not used, which is fuel-consuming. Turboprop: Between the turboproper and the piston propeller, a free turbine is added after the turbine to drive the propeller to rotate, improve fuel utilization and save fuel.

Turbofan engine, known as Turbofan, is a kind of aircraft engine developed from turbojet.

The advantage of the turbofan engine is that compared with the turbojet engine, it has greater thrust and higher efficiency, and the larger the culvert ratio, the more obvious this advantage is. The disadvantage is that it cannot be used in high-speed working conditions (referring to supersonic).

The differences between them are as follows: the vortex injection engine, its working quality is the high-temperature and high-pressure gas generated from the combustion chamber, and the thrust generated by the output after the turbine is partially driven to achieve the work of the engine.

What are the advantages and disadvantages of turbofan engines?

The turbine fan engine has large thrust, high propulsion efficiency, low noise and low fuel consumption rate. The aircraft has a long range, but the fan diameter is large and the windward area is large, so the resistance is large, the engine structure is complex, and the design is difficult.

Advantages: The high speed is particularly good. Disadvantages: Poor fuel economy. Vortex engines are mainly used in: general fighter jets, bombers and drones.

Turbine fan engines are more fuel-efficient than turbojet engines, especially when the speed of sound is not too much. Therefore, civil jet aircraft all use turbofan engines.

Disadvantages and disadvantages of turbofan jet engines As mentioned above, turbofan engines have high efficiency and low fuel consumption, and the aircraft has a long range. Advantages and disadvantages of turboshaft engines. Helicopters originally used piston engines, and they are still widely used.

The characteristic of this engine is that it is suitable for high altitude and high speed. The disadvantage is that the efficiency is not high at low altitude and low speed, that is to say, it is relatively fuel-consuming and the thrust is not large enough.

Engines are divided into two forms: turbocharged and naturally aspirated.The simple understanding is that the naturally aspirated engine is like a fan, with smooth and natural air output and low manufacturing and maintenance costs. The turbocharged engine is like a small electric fan, which is powerful in the high-end position, but the maintenance cost is high.

List of catalogs in this article:

• 1,Country tariff schedules by HS code How strong is the turbofan 10B engine?
• 2, What is the principle and difference between turbofan, turbo slurry, turbojet and turboshaft engine, and which aircraft are they suitable for? _Baidu...
• 3, The principle of the miniature turbojet engine
• 4. The aviation engine has made a breakthrough, when can China have its own
• 5, What is the difference between turbojet, turbofan and turboprop engine?
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