HS code mapping for re-importation

List of the table of contents of this article:

• 1, The problem of vortex fan 6
• 2, Introduction to the equipment of turbopeller-6 turboprop engine
• 3, Introduction of Vortex Spray-6
• 4, What is the material of the stator of the vortex six engine
• 5、Development of turbo-6 turboprop engine

The problem of vortex fan 6

Difficult to start: The starting process of the vortex fan 6 engine is relatively complex, and certain conditions need to be met to start successfully.

First, the vortex fan 6 has been off the horse for a long time. There has been no reliability verification at all, so it cannot be used. Second, the vortex fan 6 is large in size, and its design idea is to highlight high speed, supporting JQ6, and highlighting acceleration.

Speaking ofVortex fan 6, we can't ignore the vortex fan 5, and we can't help but mention Mr. Wu Daguan, the designer of these two turbofan engines independently developed in China. The vortex fan 5 is the first turbofan engine developed by China, which represents the direction that China's turbofan engine development could have led to dual military and civilian use from the beginning.

Introduction to the equipment of turboprop-6 turboprop engine

1. In year, Zhuzhou Aviation Engine Factory accepted the task of developing the turboprop-6 engine of the Yun-8 aircraft power device. The aircraft can also be installed on Soviet Il-18 passenger aircraft. The power is 3,124 kilowatts (4250 horsepower) and the weight is 1,200 kilograms.

2. The fixation of the turboprop engine has the characteristic of causing vibration when the propeller is working, so a shock absorber needs to be used at the connection between the fixing device and the engine.This kind of engine is usually fixed by the engine frame, and the engine frame is connected to the force frame of the fuselage or short compartment, such as the reinforced partition.

3. The P400-D6 turboprop engine, with a single maximum power of about 11,000 axle horsepower, is second only to the NK-12 used by the Russian Tu-95 bomber.

4. It is a gas turbine engine usually used in airplanes. The driving principle of the turboprop engine is roughly the same as that of the traditional propeller aircraft that uses the piston engine as the power source. The force generated when the propeller rotates is used as the propulsion force of the aircraft.

5. In order to improve efficiency, people simply threw away the outer shell of the fan and replaced the fan with propellers, thus forming a turboprop engine, referred to as turboprop engine.The turboprop engine consists of a propeller and a gas generator, and the propeller is driven by a turbine.

Introduction of vortex-6

1. Boom-6 bomber is a kind of medium-sized bomber developed and produced by China imitating the Soviet Union Tu-16 The medium-sized jet bomber made its first flight in September 1959 and was officially equipped with troops in July 1964.At present, the Boom-6 bomber is one of the core aircraft of the strategic bombing force of the Chinese People's Liberation Army Air Force.

2. The stator of the turbojet six engine is made of steel material; the engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engine (resurrection plug engine), external combustion engine (Stling engine, steam engine, etc.), jet engine, electric motor Wait.

3. Vortex 6 is the largest aviation engine produced in China so far. In order to improve the power generated by the engine, the vortex 6 engine adopts the technology of high-pressure turbine. The air intake of the vortex injection 6 engine is ring-shaped. The intake cone is connected to the front box through 4 rectifier plates. The compressor is 9-stage axial flow type.

4. The prototype of vortex spray 6 is the previousThe power unit of the Soviet MiG-19 aircraft---Eld-9Б (Pд-9Б) was successfully imitated by China in March 1959 and began to be mass-produced in 1961. The first turnaround period was 100 hours. After years of improvement, the first turnaround period was increased to 200 hours in 1972.

5. First of all, 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.

What is the material of the stator of the vortex six engine

1. They are all composed of iron cores and lacquered wire windings made of silicon steel pieces. Of course, there are also some insulation materials and binding materials.

2. Turbojet engines are made of high-temperature resistant materials. At first, they are ferroalloys, and later they have become nickel-chromium iron alloys. Now they are studying ceramic fiber-type turbine blades.

3. The turbo-stamping jet engine combines the turbojet engine (which is often used at various speeds with Mach number less than 3) with the stamping jet engine, which has good performance at high Mach number. This kind of engine is surrounded by a culvert, the front has an adjustable intake duct, and the rear is a power nozzle with an adjustable nozzle.

4. The material used in the turbine plate is high-temperature alloy, generally Inconel 718, and the domestic brand is GH4169. A 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.The fuel consumption is higher than that of the turbine fan engine.

Development of turboprop-6 turboprop engine

Southern Airlines Power Machinery Company began to develop turboprop 6 for Y-8 aircraft in August 1969, and the first The second time it was put on the stage, it flew to the sky for the first time in April 1973. In 1976, the design was completed and standardized, and the troops were equipped for use.

Year, Zhuzhou Aviation Engine Factory accepted the research and development task of the Yun-8 aircraft power device turbopeller-6 engine. The aircraft can also be installed on Soviet Il-18 passenger aircraft. The power is 3,124 kilowatts (4250 horsepower) and the weight is 1,200 kilograms.

Fixing tools of turboprop engineIt has the characteristic of causing vibration when the propeller is working, so a shock absorber needs to be used at the junction of the fixture and the engine. This kind of engine is usually fixed by the engine frame, and the engine frame is connected to the force frame of the fuselage or short compartment, such as the reinforced partition.

The principle of the turbofan jet engine The thrust of the turboprop engine is limited, and it also affects the aircraft to improve its flight speed. Therefore, it is necessary to improve the efficiency of the jet engine. The efficiency of the engine includes two parts: thermal efficiency and propulsion efficiency. Increasing the temperature of the gas in front of the turbine and the pressurization ratio of the compressor can improve the thermal efficiency.

Turboprop engine, abbreviated as turboprop engine. The structure of this engine is basically the same as that of a turbojet engine. The difference is that there are two more parts: propellers and reducer gears.It also has an intake duct, a compressor, a combustion chamber, a turbine and a tail nozzle. The work of these parts is also similar to that of turbojet engines.